Merge pull request #43 from RatzzFatzz/dev

Add date filter & incremental updating

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: [RatzzFatzz]
+custom: "https://paypal.me/ratzmichael"

.github/ISSUE_TEMPLATE/default-bug-report.md

@@ -0,0 +1,23 @@
+---
+name: Bug Report
+about: Create a report to help me improve
+title: ''
+labels: bug
+assignees: RatzzFatzz
+
+---
+
+**Environment**
+Java Version: [e.g. 8, 11, 17]
+MKV Audio Subtitle Changer version: [e.g. v1.1, v2.0]
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+Add any other context about the problem here.
+
+### Please attach logs

.github/ISSUE_TEMPLATE/default-feature-request.md

@@ -0,0 +1,11 @@
+---
+name: Feature Request
+about: Tell me about something you would want me to add
+title: ''
+labels: feature-request
+
+---
+
+**Describe your feature**
+A clear and concise description of the expected behaviour. 
+

.github/workflows/release.yml

@@ -0,0 +1,35 @@
+# This workflow will run every time a new release is created.
+
+name: Build and release
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v2
+        with:
+          distribution: temurin
+          java-version: 11
+
+      - name: Setup workspace
+        run: mkdir artifacts
+
+      - name: Build with Maven
+        run: |
+          mvn clean package --file pom.xml
+          cp target/M*.{zip,tar} artifacts/
+
+      - name: Upload artifacts
+        uses: skx/github-action-publish-binaries@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          args: 'artifacts/M*'
+        

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -1,46 +1,50 @@
-### Table of content
- - Introduction
- - Requirements
- - Running
- - config.yml example
- 
-### Introduction
+## Introduction
 
-This program helps changing audio and subtitle lines of mkv files.
+This program helps to change audio and subtitle tracks of mkv files without rewriting the file. Only track properties will be updated.
+![](https://github.com/RatzzFatzz/MKVAudioSubtitleChanger/blob/master/example.gif)
 
-### Requirements
+## Requirements
 
- - Java 8 or higher
+ - Java 11 or higher
  - mkvtoolnix installation
  
-### Running
+## Execution
+**Minimal usage:**
+`java -jar mkvaudiosubtitlechanger.jar --library "X:/Files" --attribute-config eng:ger eng:OFF`
 
-Opening terminal / cmd in the directory of the jar and the config file and execute following command:
+**Safe usage (best for testing before applying to whole library):**
+`java -jar mkvaudiosubtitlechanger.jar --library "X:/Files" --attribute-config eng:ger eng:OFF --safe-mode`
 
-`java -jar mkvaudiosubtitleschanger.jar [path to mkv or dir with mkv]`
-
-You have to replace the brackets and the content of it with the path to your mkv file or the directory with mkv files.
-
-### config.yml example
-Config file needs to be placed in the same directory as the jar.
+Attribute-config must be entered in pairs: `audio:subtitle`; Example: `jpn:eng`. More about this topic
+[here](https://github.com/RatzzFatzz/MKVAudioSubtitleChanger/wiki/Attribute-Config).
 
+## Available parameters
+```shell
+   -l,--library <arg>                Path to library
+   -a,--attribute-config <arg>       Attribute config to decide which tracks to choose when
+   -p,--config-path <arg>            Path to config file
+   -m,--mkvtoolnix <arg>             Path to mkv tool nix installation
+   -s,--safe-mode                    Test run (no files will be changes)
+   -t,--threads <arg>                Thread count (default: 2)
+   -i,--include-pattern <arg>        Include files matching pattern (default: ".*")
+   -e,--exclude-directories <arg>    Directories to be excluded, combines with config file
+   -fk,--forced-keywords <arg>       Additional keywords to identify forced tracks
+   -ck,--commentary-keywords <arg>   Additional keywords to identify commentary tracks
+   -v,--version                      Display version
+   -h,--help                         "For help this is" - Yoda
 ```
-mkvtoolnixPath: /usr/bin
-config:
-  1:
-    audio:
-      - jpn
-    subtitle:
-      - ger
-      - eng
-  2:
-    audio:
-      - ger
-      - eng
-    subtitle:
-      - OFF
+
+All parameters can also be defined in a config file. 
+Please read [this wiki page](https://github.com/RatzzFatzz/MKVAudioSubtitleChanger/wiki/How-to-config-file)  for more information.
+
+## Build requirements
+- JDK 11 or higher
+- Maven 3
+- Git
+
+## Build from source
+```shell
+git clone https://github.com/RatzzFatzz/MKVAudioSubtitleChanger.git
+cd MKVAudioSubtitleChanger
+mvn package
 ```
-This config will first check if there is japanese audio and german or english subtitles available, if yes,
-it will set these attributes. If these are not available, it will check the second part. This means, it checks
-if german or english audio is available. It does not care for the subtitle, because it's "off", which means, it 
-will disable subtitles in this case.

config-template.yaml

@@ -0,0 +1,28 @@
+mkvtoolnix: C:\Program Files\MKVToolNix
+library: X:/Files
+
+config:
+  1:
+    audio: ger
+    subtitle: OFF
+  2:
+    audio: eng
+    subtitle: ger
+
+# Recommendations for data stored on HDDs, increase when using SSDs
+#threads: 2
+
+#forced-keywords: ["forced", "signs"]
+#commentary-keywords: ["commentary", "director"]
+
+#exclude-directories:
+#  - "D:/Path/To/File.mkv"
+#  - "D:/Path/To/Directory"
+
+# If pattern is negated, can be used to exclude files
+#include-pattern: "regex"
+
+safe-mode:
+#coherent:
+
+

config.yaml

@@ -1,14 +0,0 @@
-mkvtoolnixPath: /usr/bin
-config:
-  1:
-    audio:
-      - jpn
-    subtitle:
-      - ger
-      - eng
-  2:
-    audio:
-      - ger
-      - eng
-    subtitle:
-      - OFF

language-codes

@@ -0,0 +1,487 @@
+aar
+abk
+ace
+ach
+ada
+ady
+afa
+afh
+afr
+ain
+aka
+akk
+alb
+ale
+alg
+alt
+ang
+amh
+anp
+apa
+ara
+arc
+arg
+arm
+arn
+arp
+art
+arw
+asm
+ast
+ath
+aus
+ava
+ave
+awa
+aym
+aze
+bad
+bai
+bak
+bal
+bam
+ban
+baq
+bas
+bat
+bej
+bel
+bem
+ben
+ber
+bho
+bih
+bik
+bin
+bis
+bla
+bnt
+bos
+bra
+bre
+btk
+bua
+bug
+bul
+bur
+byn
+cad
+cai
+car
+cat
+cau
+ceb
+cel
+cha
+chb
+che
+chg
+chi
+chk
+chm
+chn
+cho
+chp
+chr
+chu
+chv
+chy
+cmc
+cnr
+cop
+cor
+cos
+cpe
+cpf
+cpp
+cre
+crh
+crp
+csb
+cus
+cze
+dak
+dan
+dar
+day
+del
+den
+dgr
+din
+div
+doi
+dra
+dsb
+dua
+dum
+dut
+dyu
+dzo
+efi
+egy
+eka
+elx
+eng
+enm
+epo
+est
+ewe
+ewo
+fan
+fao
+fat
+fij
+fil
+fin
+fiu
+fon
+fre
+frm
+fro
+frr
+frs
+fry
+ful
+fur
+gaa
+gay
+gba
+gem
+geo
+ger
+gez
+gil
+gla
+gle
+glg
+glv
+gmh
+goh
+gon
+gor
+got
+grb
+grc
+gre
+grn
+gsw
+guj
+gwi
+hai
+hat
+hau
+haw
+heb
+her
+hil
+him
+hin
+hit
+hmn
+hmo
+hrv
+hsb
+hun
+hup
+iba
+ibo
+ice
+ido
+iii
+ijo
+iku
+ile
+ilo
+ina
+inc
+ind
+ine
+inh
+ipk
+ira
+iro
+ita
+jav
+jbo
+jpn
+jpr
+jrb
+kaa
+kab
+kac
+kal
+kam
+kan
+kar
+kas
+kau
+kaw
+kaz
+kbd
+kha
+khi
+khm
+kho
+kik
+kin
+kir
+kmb
+kok
+kom
+kon
+kor
+kos
+kpe
+krc
+krl
+kro
+kru
+kua
+kum
+kur
+kut
+lad
+lah
+lam
+lao
+lat
+lav
+lez
+lim
+lin
+lit
+lol
+loz
+ltz
+lua
+lub
+lug
+lui
+lun
+luo
+lus
+mac
+mad
+mag
+mah
+mai
+mak
+mal
+man
+mao
+map
+mar
+mas
+may
+mdf
+mdr
+men
+mga
+mic
+min
+mis
+mkh
+mlg
+mlt
+mnc
+mni
+mno
+moh
+mon
+mos
+mul
+mun
+mus
+mwl
+mwr
+myn
+myv
+nah
+nai
+nap
+nau
+nav
+nbl
+nde
+ndo
+nds
+nep
+new
+nia
+nic
+niu
+nno
+nob
+nog
+non
+nor
+nqo
+nso
+nub
+nwc
+nya
+nym
+nyn
+nyo
+nzi
+oci
+oji
+ori
+orm
+osa
+oss
+ota
+oto
+paa
+pag
+pal
+pam
+pan
+pap
+pau
+peo
+per
+phi
+phn
+pli
+pol
+pon
+por
+pra
+pro
+pus
+que
+raj
+rap
+rar
+roa
+roh
+rom
+rum
+run
+rup
+rus
+sad
+sag
+sah
+sai
+sal
+sam
+san
+sas
+sat
+scn
+sco
+sel
+sem
+sga
+sgn
+shn
+sid
+sin
+sio
+sit
+sla
+slo
+slv
+sma
+sme
+smi
+smj
+smn
+smo
+sms
+sna
+snd
+snk
+sog
+som
+son
+sot
+spa
+srd
+srn
+srp
+srr
+ssa
+ssw
+suk
+sun
+sus
+sux
+swa
+swe
+syc
+syr
+tah
+tai
+tam
+tat
+tel
+tem
+ter
+tet
+tgk
+tgl
+tha
+tib
+tig
+tir
+tiv
+tkl
+tlh
+tli
+tmh
+tog
+ton
+tpi
+tsi
+tsn
+tso
+tuk
+tum
+tup
+tur
+tut
+tvl
+twi
+tyv
+udm
+uga
+uig
+ukr
+umb
+und
+urd
+uzb
+vai
+ven
+vie
+vol
+vot
+wak
+wal
+war
+was
+wel
+wen
+wln
+wol
+xal
+xho
+yao
+yap
+yid
+yor
+ypk
+zap
+zbl
+zen
+zgh
+zha
+znd
+zul
+zun
+zxx
+zza
+OFF

maven/assembly.xml

@@ -0,0 +1,25 @@
+<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
+    <id>zip</id>
+    <includeBaseDirectory>true</includeBaseDirectory>
+
+    <formats>
+        <format>zip</format>
+        <format>tar</format>
+    </formats>
+    <files>
+        <file>
+            <source> ${project.build.directory}/${project.artifactId}-${project.version}.jar</source>
+            <destName>${project.artifactId}.jar</destName>
+            <outputDirectory>/</outputDirectory>
+        </file>
+        <file>
+            <source>${project.basedir}/config-template.yaml</source>
+            <outputDirectory>/</outputDirectory>
+        </file>
+        <file>
+            <source></source>
+        </file>
+    </files>
+</assembly>

pom.xml

@@ -4,9 +4,9 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>MKVAudioSubtilesChanger</groupId>
-    <artifactId>MKVAudioSubtitlesChanger</artifactId>
-    <version>1.0</version>
+    <groupId>at.pcgamingfreaks</groupId>
+    <artifactId>MKVAudioSubtitleChanger</artifactId>
+    <version>3.0</version>
 
     <build>
         <defaultGoal>clean package</defaultGoal>
@@ -16,6 +16,14 @@
             <resource>
                 <directory>src/main/resources</directory>
             </resource>
+            <resource>
+                <directory>./</directory>
+                <includes>
+                    <include>language-codes</include>
+                    <include>project.properties</include>
+                </includes>
+                <filtering>true</filtering>
+            </resource>
         </resources>
         <testResources>
             <testResource>
@@ -24,15 +32,6 @@
         </testResources>
 
         <plugins>
-            <plugin>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
-                <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
-                </configuration>
-            </plugin>
-
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
@@ -76,10 +75,29 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>9</source>
-                    <target>9</target>
+                    <source>11</source>
+                    <target>11</target>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <version>3.3.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                        <configuration>
+                            <appendAssemblyId>false</appendAssemblyId>
+                            <descriptors>
+                                <descriptor>maven/assembly.xml</descriptor>
+                            </descriptors>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 
@@ -99,7 +117,7 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.18.8</version>
+            <version>1.18.24</version>
             <scope>provided</scope>
         </dependency>
         <!-- region logging -->
@@ -118,51 +136,56 @@
             <artifactId>log4j-slf4j-impl</artifactId>
             <version>2.17.1</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>1.7.28</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>jcl-over-slf4j</artifactId>
-            <version>1.7.28</version>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>jul-to-slf4j</artifactId>
-            <version>1.7.28</version>
-        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.dataformat</groupId>
             <artifactId>jackson-dataformat-yaml</artifactId>
-            <version>2.13.1</version>
+            <version>2.13.4</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.13.1</version>
+            <version>2.13.4.2</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-cli</groupId>
+            <artifactId>commons-cli</artifactId>
+            <version>1.5.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>3.12.0</version>
+        </dependency>
+        <dependency>
+            <groupId>me.tongfei</groupId>
+            <artifactId>progressbar</artifactId>
+            <version>0.9.5</version>
         </dependency>
         <!-- endregion -->
         <!-- region unit-tests -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>5.4.2</version>
+            <version>5.9.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>5.4.2</version>
+            <version>5.9.0</version>
             <scope>test</scope>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.mockito/mockito-all -->
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-all</artifactId>
-            <version>1.9.5</version>
+            <version>1.10.19</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>5.9.0</version>
             <scope>test</scope>
         </dependency>
         <!-- endregion -->
@@ -171,6 +194,12 @@
             <artifactId>YAML-Parser</artifactId>
             <version>2.0-SNAPSHOT</version>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/net.harawata/appdirs -->
+        <dependency>
+            <groupId>net.harawata</groupId>
+            <artifactId>appdirs</artifactId>
+            <version>1.2.1</version>
+        </dependency>
     </dependencies>
 
 </project>

project.properties

@@ -0,0 +1,2 @@
+version=${project.version}
+project_name=${project.artifactId}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/AttributeUpdaterKernel.java

@@ -1,45 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger;
-
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.AttributeConfig;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ConfigProcessor;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.intimpl.MkvFileCollector;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.ConfigUtil;
-import lombok.extern.log4j.Log4j2;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
-
-@Log4j2
-public class AttributeUpdaterKernel {
-    MkvFileCollector collector = new MkvFileCollector();
-
-    public void execute(String path) {
-        List<AttributeConfig> configPattern = ConfigUtil.loadConfig();
-        List<File> allValidPaths = collector.loadFiles(path);
-        if(allValidPaths != null && configPattern != null){
-            for(File file : allValidPaths){
-                List<FileAttribute> attributes = collector.loadAttributes(file);
-                if (attributes.isEmpty()) {
-                    continue;
-                }
-                boolean fileHasChanged = false;
-                for(AttributeConfig config : configPattern){
-                    /*
-                     * Creating new ArrayList, because the method removes elements from the list by reference
-                     */
-                    fileHasChanged = new ConfigProcessor(config).processConfig(file, new ArrayList<>(attributes));
-                    if(fileHasChanged){
-                        break;
-                    }
-                }
-                if(! fileHasChanged){
-                    log.info(file.getName() + " didn't change!");
-                }
-            }
-        }else{
-            log.error("Path is not valid or config has errors!");
-        }
-    }
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/MKVToolProperties.java

@@ -1,25 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger;
-
-import lombok.Getter;
-import lombok.Setter;
-import lombok.extern.log4j.Log4j2;
-
-@Log4j2
-@Getter
-@Setter
-public class MKVToolProperties {
-    private String mkvmergePath;
-    private String mkvpropeditPath;
-
-    private static MKVToolProperties instance = null;
-
-    private MKVToolProperties() {
-    }
-
-    public static MKVToolProperties getInstance() {
-        if(instance == null){
-            instance = new MKVToolProperties();
-        }
-        return instance;
-    }
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/Main.java

@@ -1,40 +1,21 @@
 package at.pcgamingfreaks.mkvaudiosubtitlechanger;
 
-import at.pcgamingfreaks.yaml.YAML;
-import at.pcgamingfreaks.yaml.YamlInvalidContentException;
-import at.pcgamingfreaks.yaml.YamlKeyNotFoundException;
-import lombok.extern.log4j.Log4j2;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ConfigLoader;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.kernel.AttributeUpdaterKernel;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.kernel.CoherentAttributeUpdaterKernel;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.kernel.DefaultAttributeUpdaterKernel;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.MkvFileCollector;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.MkvFileProcessor;
+import lombok.extern.slf4j.Slf4j;
 
-import java.io.File;
-import java.io.IOException;
-
-@Log4j2
+@Slf4j
 public class Main {
     public static void main(String[] args) {
-        if(checkIfMKVToolNixIsValid()){
-            AttributeUpdaterKernel kernel = new AttributeUpdaterKernel();
-            kernel.execute(args[0]);
-        }else{
-            log.error("MKVToolNix was not found! Please recheck path");
-        }
-    }
-
-    private static boolean checkIfMKVToolNixIsValid() {
-        try{
-            String path = new YAML(new File("config.yaml")).getString("mkvtoolnixPath");
-            if(! path.endsWith(File.separator)){
-                path += File.separator;
-            }
-            if(System.getProperty("os.name").toLowerCase().contains("windows")){
-                MKVToolProperties.getInstance().setMkvmergePath(path + "mkvmerge.exe");
-                MKVToolProperties.getInstance().setMkvpropeditPath(path + "mkvpropedit.exe");
-            }else{
-                MKVToolProperties.getInstance().setMkvmergePath(path + "mkvmerge");
-                MKVToolProperties.getInstance().setMkvpropeditPath(path + "mkvpropedit");
-            }
-        }catch(YamlKeyNotFoundException | IOException | YamlInvalidContentException e){
-            e.printStackTrace();
-        }
-        return new File(MKVToolProperties.getInstance().getMkvmergePath()).isFile() && new File(MKVToolProperties.getInstance().getMkvpropeditPath()).isFile();
+        ConfigLoader.initConfig(args);
+        AttributeUpdaterKernel kernel = Config.getInstance().getCoherent() != null
+                ? new CoherentAttributeUpdaterKernel(new MkvFileCollector(), new MkvFileProcessor())
+                : new DefaultAttributeUpdaterKernel(new MkvFileCollector(), new MkvFileProcessor());
+        kernel.execute();
     }
 }

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/AttributeConfig.java

@@ -1,18 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger.config;
-
-import lombok.Getter;
-import lombok.extern.log4j.Log4j2;
-
-import java.util.List;
-
-@Log4j2
-@Getter
-public class AttributeConfig {
-    private List<String> audio;
-    private List<String> subtitle;
-
-    public AttributeConfig(List<String> audio, List<String> subtitle) {
-        this.audio = audio;
-        this.subtitle = subtitle;
-    }
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/Config.java

@@ -0,0 +1,99 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.MkvToolNix;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.HelpFormatter;
+
+import java.io.File;
+import java.util.*;
+import java.util.regex.Pattern;
+
+@Slf4j
+@Getter
+@Setter
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class Config {
+    @Getter(AccessLevel.NONE)
+    @Setter(AccessLevel.NONE)
+    private static Config config = null;
+    @Getter(AccessLevel.NONE)
+    CommandLineParser parser = new DefaultParser();
+    @Getter(AccessLevel.NONE)
+    HelpFormatter formatter = new HelpFormatter();
+    private File configPath;
+    private File libraryPath;
+    @Getter(AccessLevel.NONE)
+    private File mkvToolNix;
+
+    private int threads;
+    private Pattern includePattern;
+    private boolean safeMode;
+
+    private Integer coherent;
+    private boolean forceCoherent;
+    private boolean onlyNewFiles;
+    private Date filterDate;
+
+    private Set<String> forcedKeywords = new HashSet<>(Arrays.asList("forced", "signs", "songs"));
+    private Set<String> commentaryKeywords = new HashSet<>(Arrays.asList("commentary", "director"));
+    private Set<String> excludedDirectories = new HashSet<>();
+    private Set<String> preferredSubtitles = new HashSet<>(Arrays.asList("unstyled"));
+
+    private List<AttributeConfig> attributeConfig;
+
+    public static Config getInstance() {
+        return getInstance(false);
+    }
+
+    public static Config getInstance(boolean reset) {
+        if (config == null || reset) {
+            config = new Config();
+        }
+        return config;
+    }
+
+    /**
+     * Get path to specific mkvtoolnix application.
+     *
+     * @return absolute path to desired application.
+     */
+    public String getPathFor(MkvToolNix application) {
+        return mkvToolNix.getAbsolutePath().endsWith("/") ? mkvToolNix.getAbsolutePath() + application :
+                    mkvToolNix.getAbsolutePath() + "/" + application;
+    }
+
+    public String getNormalizedLibraryPath() {
+        return this.getLibraryPath().getAbsolutePath().replace("\\", "/");
+    }
+
+    @Override
+    public String toString() {
+        return new StringJoiner(", ", Config.class.getSimpleName() + "[", "]")
+                .add("parser=" + parser)
+                .add("formatter=" + formatter)
+                .add("configPath=" + configPath)
+                .add("libraryPath=" + libraryPath)
+                .add("mkvToolNix=" + mkvToolNix)
+                .add("threads=" + threads)
+                .add("includePattern=" + includePattern)
+                .add("safeMode=" + safeMode)
+                .add("coherent=" + coherent)
+                .add("forceCoherent=" + forceCoherent)
+                .add("onlyNewFiles=" + onlyNewFiles)
+                .add("filterDate=" + filterDate)
+                .add("forcedKeywords=" + forcedKeywords)
+                .add("commentaryKeywords=" + commentaryKeywords)
+                .add("excludedDirectories=" + excludedDirectories)
+                .add("preferredSubtitles=" + preferredSubtitles)
+                .add("attributeConfig=" + attributeConfig)
+                .toString();
+    }
+}
+

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/ConfigLoader.java

@@ -0,0 +1,110 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator.*;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.ProjectUtil;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.*;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+
+public class ConfigLoader {
+    private static final List<ConfigValidator<?>> VALIDATORS = Stream.of(
+            new ConfigPathValidator(CONFIG_PATH, false),
+            new PathValidator(LIBRARY, true, null),
+            new ThreadValidator(THREADS, false, 2),
+            new MkvToolNixPathValidator(MKV_TOOL_NIX, true, Path.of("C:\\Program Files\\MKVToolNix").toFile()),
+            new BooleanValidator(SAFE_MODE, false),
+            new BooleanValidator(ONLY_NEW_FILES, false),
+            new DateValidator(FILTER_DATE, false),
+            new PatternValidator(INCLUDE_PATTERN, false, Pattern.compile(".*")),
+            new SetValidator(FORCED_KEYWORDS, false, true),
+            new SetValidator(COMMENTARY_KEYWORDS, false, true),
+            new SetValidator(EXCLUDED_DIRECTORY, false, true),
+            new SetValidator(PREFERRED_SUBTITLES, false, true),
+            new AttributeConfigValidator(),
+            new CoherentConfigValidator(COHERENT, false),
+            new BooleanValidator(FORCE_COHERENT, false)
+    ).sorted(Comparator.comparing((ConfigValidator<?> validator) -> validator.getWeight()).reversed()).collect(Collectors.toList());
+
+    public static void initConfig(String[] args) {
+        HelpFormatter formatter = new HelpFormatter();
+        formatter.setOptionComparator(null);
+        YAML yamlConfig = null;
+
+        Options options = initOptions();
+        CommandLine cmd = parseCommandLineArgs(formatter, options, args);
+
+        exitIfHelp(cmd, options, formatter);
+        exitIfVersion(cmd);
+
+        List<ValidationResult> results = new ArrayList<>();
+
+        for (ConfigValidator<?> validator: VALIDATORS) {
+            results.add(validator.validate(yamlConfig, cmd));
+            if (yamlConfig == null) {
+                try {
+                    yamlConfig = Config.getInstance().getConfigPath() != null
+                            ? new YAML(Config.getInstance().getConfigPath())
+                            : new YAML("");
+                } catch (IOException | YamlInvalidContentException ignored) {}
+            }
+        }
+
+        if (results.contains(ValidationResult.INVALID) || results.contains(ValidationResult.MISSING)) System.exit(1);
+        System.out.println();
+    }
+
+    private static Options initOptions() {
+        Options options = new Options();
+        Arrays.stream(ConfigProperty.values())
+                .filter(prop -> prop.abrv() != null)
+                .map(prop -> optionOf(prop, prop.abrv(), prop.args()))
+                .forEach(options::addOption);
+        return options;
+    }
+
+    private static CommandLine parseCommandLineArgs(HelpFormatter formatter, Options options, String[] args) {
+        CommandLineParser parser = new DefaultParser();
+
+        try {
+            CommandLine cmd = parser.parse(options, args);
+            if (cmd == null) throw new NullPointerException();
+            return cmd;
+        } catch (ParseException | NullPointerException e) {
+            formatter.printHelp(106, "java -jar MKVAudioSubtitlesChanger.jar -l <path_to_library>",
+                    "\nParameters:", options,
+                    "\nFeature requests and bug reports: https://github.com/RatzzFatzz/MKVAudioSubtitleChanger/issues");
+            System.exit(1);
+        }
+        return null; // can't be reached
+    }
+
+    private static void exitIfHelp(CommandLine cmd, Options options, HelpFormatter formatter) {
+        if (cmd.hasOption("help")) {
+            formatter.printHelp(106, "java -jar MKVAudioSubtitlesChanger.jar -l <path_to_library>",
+                    "\nParameters:", options,
+                    "\nFeature requests and bug reports: https://github.com/RatzzFatzz/MKVAudioSubtitleChanger/issues");
+            System.exit(0);
+        }
+    }
+
+    private static void exitIfVersion(CommandLine cmd) {
+        if (cmd.hasOption(VERSION.prop())) {
+            System.out.printf("MKV Audio Subtitle Changer Version %s%n", ProjectUtil.getVersion());
+            System.exit(0);
+        }
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/ConfigProcessor.java

@@ -1,194 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger.config;
-
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.MKVToolProperties;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.extern.log4j.Log4j2;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.List;
-
-@Log4j2
-public class ConfigProcessor {
-    private int audioDefault = - 1;
-    private int subtitleDefault = - 1;
-    private final AttributeConfig config;
-
-    public ConfigProcessor(AttributeConfig config) {
-        this.config = config;
-    }
-
-    /**
-     * Processes the config lists and apply the changes if the combination matches
-     *
-     * @param file       is the file, which will be updated
-     * @param attributes has the metadata for the transferred file
-     * @return If the current configuration matched and changes applied or not
-     */
-    public boolean processConfig(File file, List<FileAttribute> attributes) {
-        // check if size is bigger or equal 2 to make sure that there is at least one audio and subtitle line
-        // TODO: implement empty audio or subtitle line
-        if(attributes.size() >= 2){
-            TransferObject transfer = filterAttributes(attributes);
-            if(! attributes.isEmpty()){
-                return updateFile(file, attributes, transfer);
-            }
-        }
-        return false;
-    }
-
-    /*
-     * Filters the attributes that only those are remaining which are needed in the current configuration.
-     * Also analyzes which tracks were default before.
-     */
-    private TransferObject filterAttributes(List<FileAttribute> attributes) {
-        TransferObject transfer = new TransferObject();
-        Iterator<FileAttribute> iterator = attributes.iterator();
-        while(iterator.hasNext()){
-            FileAttribute elem = iterator.next();
-            if("audio".equals(elem.getType())){
-                if(elem.isDefaultTrack()){
-                    audioDefault = elem.getId();
-                }
-                if(config.getAudio().contains("OFF")){
-                    transfer.setAudioOn(false);
-                    transfer.setAudioIndex(- 2);
-                }
-                if(! config.getAudio().contains(elem.getLanguage())){
-                    iterator.remove();
-                }
-            }else if("subtitles".equals(elem.getType())){
-                if(elem.isDefaultTrack()){
-                    subtitleDefault = elem.getId();
-                }
-                if(config.getSubtitle().contains("OFF")){
-                    transfer.setSubtitleOn(false);
-                    transfer.setSubtitleIndex(- 2);
-                }
-                if(! config.getSubtitle().contains(elem.getLanguage())){
-                    iterator.remove();
-                }
-            }
-        }
-        return transfer;
-    }
-
-    /**
-     * Creates the command which will be executed if the attributes of the current file fit the current {@link AttributeConfig}
-     *
-     * @param file       is the file, which will be updated
-     * @param attributes has the metadata for the transferred file
-     * @return if the the current file was updated or not. Returns true if the file already has the correct metadata set
-     */
-    private boolean updateFile(File file, List<FileAttribute> attributes, TransferObject transfer) {
-        StringBuilder stringBuffer = new StringBuilder();
-        if(System.getProperty("os.name").toLowerCase().contains("windows")){
-            stringBuffer.append("\"");
-            stringBuffer.append(MKVToolProperties.getInstance().getMkvpropeditPath());
-            stringBuffer.append("\" \"").append(file.getAbsolutePath()).append("\" ");
-        }else{
-            stringBuffer.append(MKVToolProperties.getInstance().getMkvpropeditPath());
-            stringBuffer.append(" ").append(file.getAbsolutePath()).append(" ");
-        }
-        if(audioDefault != - 1){
-            stringBuffer.append("--edit track:=").append(audioDefault).append(" --set flag-default=0 ");
-        }
-        if(subtitleDefault != - 1){
-            stringBuffer.append("--edit track:=").append(subtitleDefault).append(" --set flag-default=0 ");
-        }
-        collectLines(attributes, transfer);
-        if(transfer.isValid){
-            if(transfer.isAudioOn){
-                stringBuffer.append("--edit track:=").append(transfer.getAudioIndex()).append(" --set flag-default=1 ");
-            }
-            if(transfer.isSubtitleOn){
-                stringBuffer.append("--edit track:=").append(transfer.getSubtitleIndex()).append(" --set flag-default=1 ");
-            }
-            if(subtitleDefault == transfer.getSubtitleIndex() && audioDefault == transfer.getAudioIndex()){
-                /*
-                 * In this case the file would be change to the exact same audio and subtitle lines and we want to
-                 * avoid unnecessary changes to the file
-                 */
-                log.info(file.getName() + " already fits config!");
-                return true;
-            }
-            try{
-                Runtime.getRuntime().exec(stringBuffer.toString());
-            }catch(IOException e){
-                log.error("Couldn't make changes to file");
-            }
-            /*
-             * We return true even if there was an error. If there was an error, the chances that this file is still
-             * busy later.
-             */
-            log.info(file.getName() + " was updated");
-            return true;
-        }else{
-            return false;
-        }
-    }
-
-    /**
-     * Analyzes the left over attributes and decides which is the most wanted for audio and subtitle
-     *
-     * @param attributes contains all the leftover attributes
-     * @return is an object, which contains information about which audio and subtitle line is the best suitable for
-     * the entered config. Also transfers a boolean which contains information about if the other two values
-     * were set
-     */
-    private TransferObject collectLines(List<FileAttribute> attributes, TransferObject transfer) {
-        int subtitleListIndex = - 1;
-        int audioListIndex = - 1;
-        for(FileAttribute elem : attributes){
-            if("audio".equals(elem.getType())){
-                for(int i = 0; i < config.getAudio().size(); i++){
-                    audioListIndex = findIndex("audio", elem, audioListIndex, config.getAudio(), transfer);
-                }
-            }else if("subtitles".equals(elem.getType())){
-                for(int i = 0; i < config.getSubtitle().size(); i++){
-                    subtitleListIndex = findIndex("subtitles", elem, subtitleListIndex, config.getSubtitle(), transfer);
-                }
-            }
-        }
-
-        transfer.analyzeIfValid();
-        return transfer;
-    }
-
-    private int findIndex(String type, FileAttribute elem, int index, List<String> config, TransferObject transfer) {
-        for(int i = 0; i < config.size(); i++){
-            if(config.get(i).equals(elem.getLanguage()) && (index == - 1 || i < index)){
-                switch(type){
-                    case "audio":
-                        transfer.setAudioIndex(elem.getId());
-                        break;
-                    case "subtitles":
-                        transfer.setSubtitleIndex(elem.getId());
-                        break;
-                }
-                return i;
-            }
-        }
-        return index;
-    }
-
-    @Getter
-    @Setter
-    private static class TransferObject {
-        private boolean isValid;
-        private int audioIndex = - 1;
-        private int subtitleIndex = - 1;
-        private boolean isSubtitleOn = true;
-        private boolean isAudioOn = true;
-
-        TransferObject() {
-        }
-
-        private void analyzeIfValid() {
-            isValid = audioIndex != - 1 && subtitleIndex != - 1;
-        }
-    }
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/ValidationResult.java

@@ -0,0 +1,9 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config;
+
+public enum ValidationResult {
+    VALID,
+    DEFAULT,
+    NOT_PRESENT,
+    MISSING,
+    INVALID;
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/AttributeConfigValidator.java

@@ -0,0 +1,88 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import org.apache.commons.cli.CommandLine;
+
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.LanguageValidatorUtil.isAudioLanguageValid;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.LanguageValidatorUtil.isLanguageValid;
+
+public class AttributeConfigValidator extends ConfigValidator<List<AttributeConfig>> {
+    private static final String SEPARATOR = ":";
+
+    public AttributeConfigValidator() {
+        super(ConfigProperty.ATTRIBUTE_CONFIG, true, null);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public ValidationResult validate(YAML yaml, CommandLine cmd) {
+        System.out.printf("%s: ", property.prop());
+        List<AttributeConfig> result;
+
+
+        if (cmd.hasOption(property.prop())) {
+            List<String> values = List.of(cmd.getOptionValues(property.prop()));
+            result = values.stream().anyMatch(pair -> !pair.contains(SEPARATOR))
+                    ? List.of()
+                    : values.stream().map(pair -> pair.split(SEPARATOR))
+                    .map(split -> new AttributeConfig(split[0], split[1]))
+                    .collect(Collectors.toList());
+        } else if(yaml.getKeysFiltered(property.prop() + ".*").size() > 0) {
+            Function<String, String> audio = key -> yaml.getString(key + ".audio", null);
+            Function<String, String> subtitle = key -> yaml.getString(key + ".subtitle", null);
+
+            result = yaml.getKeysFiltered(".*audio.*").stream()
+                    .sorted()
+                    .map(key -> key.replace(".audio", ""))
+                    .map(key -> new AttributeConfig(audio.apply(key), subtitle.apply(key)))
+                    .collect(Collectors.toList());
+        } else if (required) {
+            System.out.println("missing");
+            return ValidationResult.MISSING;
+        } else {
+            System.out.println("ok");
+            return ValidationResult.NOT_PRESENT;
+        }
+
+        if (!isValid(result) || !setValue(result)) {
+            System.out.println("invalid");
+            return ValidationResult.INVALID;
+        }
+
+        System.out.println("ok");
+        return ValidationResult.VALID;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    List<AttributeConfig> parse(String value) {
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    boolean isValid(List<AttributeConfig> result) {
+        if (result.isEmpty()) {
+            return false;
+        }
+        boolean isValid;
+        for (AttributeConfig attributeConfig : result) {
+            isValid = isAudioLanguageValid(attributeConfig.getAudioLanguage())
+                            && isLanguageValid(attributeConfig.getSubtitleLanguage());
+            if (!isValid) return false;
+        }
+        return true;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/BooleanValidator.java

@@ -0,0 +1,63 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlKeyNotFoundException;
+import org.apache.commons.cli.CommandLine;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.function.BiFunction;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.ARGUMENTS;
+
+public class BooleanValidator extends ConfigValidator<Boolean> {
+
+    public BooleanValidator(ConfigProperty property, boolean required) {
+        super(property, required, null);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected BiFunction<YAML, ConfigProperty, Optional<Boolean>> provideDataYaml() {
+        return (yaml, property) -> {
+            if (yaml.isSet(ARGUMENTS.prop())
+                    && yaml.getStringList(ARGUMENTS.prop(), List.of()).contains(property.prop())) {
+                return Optional.of(true);
+            }
+            return Optional.empty();
+        };
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected BiFunction<CommandLine, ConfigProperty, Optional<Boolean>> provideDataCmd() {
+        return (cmd, property) -> {
+            if (cmd.hasOption(property.prop())) {
+                return  Optional.of(true);
+            }
+            return Optional.empty();
+        };
+    }
+
+    /**
+     * {@inheritDoc}
+     * This should not be used.
+     */
+    @Override
+    Boolean parse(String value) {
+        throw new RuntimeException("This should not be called");
+    }
+
+    /**
+     * {@inheritDoc}
+     * Validation is skipped.
+     */
+    @Override
+    boolean isValid(Boolean result) {
+        return true; // skip
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/CoherentConfigValidator.java

@@ -0,0 +1,22 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import org.apache.commons.lang3.math.NumberUtils;
+
+public class CoherentConfigValidator extends ConfigValidator<Integer> {
+    private static final Integer DISABLED = -1;
+
+    public CoherentConfigValidator(ConfigProperty property, boolean required) {
+        super(property, required, null);
+    }
+
+    @Override
+    Integer parse(String value) {
+        return NumberUtils.isParsable(value) ? Integer.parseInt(value) : DISABLED;
+    }
+
+    @Override
+    boolean isValid(Integer result) {
+        return result >= 0;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/ConfigPathValidator.java

@@ -0,0 +1,35 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+
+import java.io.File;
+import java.util.Optional;
+import java.util.function.BiFunction;
+
+public class ConfigPathValidator extends PathValidator {
+    public ConfigPathValidator(ConfigProperty property, boolean required) {
+        super(property, required, null);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected BiFunction<YAML, ConfigProperty, Optional<File>> provideDataYaml() {
+        return (yaml, property) -> Optional.empty();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected boolean isValid(File result) {
+        return super.isValid(result) && (result.getAbsolutePath().endsWith(".yml") || result.getAbsolutePath().endsWith(".yaml"));
+    }
+
+    @Override
+    public int getWeight() {
+        return 100;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/ConfigValidator.java

@@ -0,0 +1,176 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlKeyNotFoundException;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.lang3.StringUtils;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Optional;
+import java.util.StringJoiner;
+import java.util.function.BiFunction;
+import java.util.function.Predicate;
+
+@Slf4j
+@RequiredArgsConstructor
+public abstract class ConfigValidator<FieldType> {
+    protected final ConfigProperty property;
+    protected final boolean required;
+    protected final FieldType defaultValue;
+
+    /**
+     * Validate the user input. Parameters of cmd are prioritised.
+     *
+     * @param yaml config file
+     * @param cmd  command line parameters
+     * @return {@link ValidationResult} containing validity of input.
+     */
+    public ValidationResult validate(YAML yaml, CommandLine cmd) {
+        System.out.printf("%s: ", property.prop());
+        FieldType result;
+
+        Optional<FieldType> cmdResult = provideDataCmd().apply(cmd, property);
+        Optional<FieldType> yamlResult = provideDataYaml().apply(yaml, property);
+
+        if (isOverwritingNecessary()) {
+            result = overwriteValue();
+        } else if (cmdResult.isPresent()) {
+            result = cmdResult.get();
+        } else if (yamlResult.isPresent()) {
+            result = yamlResult.get();
+        } else {
+            if (defaultValue != null) {
+                if (setValue(defaultValue)) {
+                    System.out.println("default");
+                    return ValidationResult.DEFAULT;
+                } else {
+                    System.out.println("invalid");
+                    return ValidationResult.INVALID;
+                }
+            }
+            if (required) {
+                System.out.println("missing");
+                return ValidationResult.MISSING;
+            } else {
+                System.out.println("ok");
+                return ValidationResult.NOT_PRESENT;
+            }
+        }
+
+        if (!isValid(result) || !setValue(result)) {
+            System.out.println("invalid");
+            return ValidationResult.INVALID;
+        }
+
+        System.out.println("ok");
+        return ValidationResult.VALID;
+    }
+
+    /**
+     * @return parsed input of yaml config for property
+     */
+    protected BiFunction<YAML, ConfigProperty, Optional<FieldType>> provideDataYaml() {
+        return (yaml, property) -> {
+            if (yaml.isSet(property.prop())) {
+                try {
+                    return Optional.of(parse(yaml.getString(property.prop())));
+                } catch (YamlKeyNotFoundException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+            return Optional.empty();
+        };
+    }
+
+    /**
+     * @return parsed input of command line parameters config for property
+     */
+    protected BiFunction<CommandLine, ConfigProperty, Optional<FieldType>> provideDataCmd() {
+        return (cmd, property) -> {
+            if (cmd.hasOption(property.prop())) {
+                return Optional.of(parse(cmd.getOptionValue(property.prop())));
+            }
+            return Optional.empty();
+        };
+    }
+
+    /**
+     * @return true if overwriting this property is necessary.
+     */
+    protected boolean isOverwritingNecessary() {
+        return false;
+    }
+
+    /**
+     * @return {@link FieldType} to overwrite result with.
+     */
+    protected FieldType overwriteValue() {
+        return null;
+    }
+
+    /**
+     * Parse input parameter to desired format.
+     *
+     * @param value input parameter
+     * @return parsed property
+     */
+    abstract FieldType parse(String value);
+
+    /**
+     * Validate if the data has the desired and allowed format.
+     *
+     * @param result parsed property
+     * @return true if data is in desired format.
+     */
+    abstract boolean isValid(FieldType result);
+
+    /**
+     * Sets valid properties to {@link Config} via reflections.
+     *
+     * @param result parsed property
+     * @return false if method invocation failed
+     */
+    protected boolean setValue(FieldType result) {
+        for (Method method : Config.getInstance().getClass().getDeclaredMethods()) {
+            if (containsSetterOf(property).test(method)) {
+                try {
+                    method.invoke(Config.getInstance(), result);
+                    return true;
+                } catch (IllegalAccessException | InvocationTargetException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
+
+        return false;
+    }
+
+    protected Predicate<Method> containsSetterOf(ConfigProperty property) {
+        return method -> StringUtils.startsWith(method.getName(), "set")
+                && StringUtils.equalsIgnoreCase(method.getName().replace("set", ""), property.prop().replace("-", ""));
+    }
+
+    protected Predicate<Method> containsGetterOf(ConfigProperty property) {
+        return method -> StringUtils.startsWith(method.getName(), "get")
+                && StringUtils.equalsIgnoreCase(method.getName().replace("get", ""), property.prop().replace("-", ""));
+    }
+
+    public int getWeight() {
+        return 50;
+    }
+
+    @Override
+    public String toString() {
+        return new StringJoiner(", ", ConfigValidator.class.getSimpleName() + "[", "]")
+                .add("property=" + property)
+                .add("required=" + required)
+                .add("defaultValue=" + defaultValue)
+                .toString();
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/DateValidator.java

@@ -0,0 +1,61 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.DateUtils;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.ProjectUtil;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import lombok.extern.slf4j.Slf4j;
+import net.harawata.appdirs.AppDirsFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.Date;
+
+@Slf4j
+public class DateValidator extends ConfigValidator<Date> {
+    private static final Date INVALID_DATE = new Date(0);
+    private static final Date DEFAULT_DATE = new Date(1000);
+
+    public DateValidator(ConfigProperty property, boolean required) {
+        super(property, required, null);
+    }
+
+    @Override
+    protected boolean isOverwritingNecessary() {
+        return Config.getInstance().isOnlyNewFiles();
+    }
+
+    @Override
+    protected Date overwriteValue() {
+        try {
+            String filePath = AppDirsFactory.getInstance().getUserConfigDir(ProjectUtil.getProjectName(), null, null);
+            File lastExecutionFile = Path.of(filePath + "/last-execution.yml").toFile();
+            if (!lastExecutionFile.exists()) {
+                return DEFAULT_DATE;
+            }
+            YAML yaml = new YAML(lastExecutionFile);
+            return parse(yaml.getString(Config.getInstance().getNormalizedLibraryPath(), DateUtils.convert(DEFAULT_DATE)));
+        } catch (YamlInvalidContentException | IOException e) {
+            log.error("Couldn't open last-execution.properties");
+            return INVALID_DATE;
+        }
+    }
+
+    @Override
+    Date parse(String value) {
+        return DateUtils.convert(value, INVALID_DATE);
+    }
+
+    @Override
+    boolean isValid(Date result) {
+        return !result.equals(INVALID_DATE);
+    }
+
+    @Override
+    public int getWeight() {
+        return 40;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/MkvToolNixPathValidator.java

@@ -0,0 +1,26 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+
+import java.io.File;
+import java.nio.file.Path;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.MkvToolNix.MKV_MERGER;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.MkvToolNix.MKV_PROP_EDIT;
+
+public class MkvToolNixPathValidator extends PathValidator {
+    private static final String EXE = ".exe";
+
+    public MkvToolNixPathValidator(ConfigProperty property, boolean required, File defaultValue) {
+        super(property, required, defaultValue);
+    }
+
+    @Override
+    protected boolean isValid(File result) {
+        return result.isDirectory()
+                && (Path.of(result.getAbsolutePath() + "/" + MKV_MERGER + EXE).toFile().isFile()
+                && Path.of(result.getAbsolutePath() + "/" + MKV_PROP_EDIT + EXE).toFile().isFile())
+                || (Path.of(result.getAbsolutePath() + "/" + MKV_MERGER).toFile().isFile()
+                && Path.of(result.getAbsolutePath() + "/" + MKV_PROP_EDIT).toFile().isFile());
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/PathValidator.java

@@ -0,0 +1,30 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+
+import java.io.File;
+import java.nio.file.Path;
+
+public class PathValidator extends ConfigValidator<File> {
+
+    public PathValidator(ConfigProperty property, boolean required, File defaultValue) {
+        super(property, required, defaultValue);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected File parse(String value) {
+        return Path.of(value).toFile();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected boolean isValid(File result) {
+        return result.isDirectory() || result.isFile();
+    }
+
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/PatternValidator.java

@@ -0,0 +1,34 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
+
+public class PatternValidator extends ConfigValidator<Pattern> {
+    private static final Pattern EMPTY_PATTERN = Pattern.compile("");
+
+    public PatternValidator(ConfigProperty property, boolean required, Pattern defaultValue) {
+        super(property, required, defaultValue);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    Pattern parse(String value) {
+        try {
+            return Pattern.compile(value);
+        } catch (PatternSyntaxException e) {
+            return EMPTY_PATTERN;
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    boolean isValid(Pattern result) {
+        return !result.equals(EMPTY_PATTERN);
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/SetValidator.java

@@ -0,0 +1,111 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlKeyNotFoundException;
+import org.apache.commons.cli.CommandLine;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.*;
+import java.util.function.BiFunction;
+import java.util.stream.Collectors;
+
+public class SetValidator extends ConfigValidator<Set<String>> {
+    private final boolean append;
+
+    public SetValidator(ConfigProperty property, boolean required, boolean append) {
+        super(property, required, null);
+        this.append = append;
+    }
+
+    public ValidationResult validate(YAML yaml, CommandLine cmd) {
+        System.out.printf("%s: ", property.prop());
+        List<String> resultList = null;
+
+        if (cmd.hasOption(property.prop())) {
+            resultList = List.of(cmd.getOptionValues(property.prop()));
+        } else if (yaml.isSet(property.prop())) {
+            try {
+                resultList = yaml.getStringList(property.prop());
+            } catch (YamlKeyNotFoundException ignored) {}
+        } else if (required) {
+            System.out.println("missing");
+            return ValidationResult.MISSING;
+        } else {
+            System.out.println("ok");
+            return ValidationResult.NOT_PRESENT;
+        }
+
+        Set<String> result = parse(resultList);
+
+        if (!isValid(result) || !setValue(result)) {
+            System.out.println("invalid");
+            return ValidationResult.INVALID;
+        }
+
+        System.out.println("ok");
+        return ValidationResult.VALID;
+    }
+
+    protected BiFunction<YAML, ConfigProperty, Optional<Set<String>>> provideDataYaml() {
+        return (yaml, property) -> {
+            if (yaml.isSet(property.prop())) {
+                try {
+                    return Optional.of(parse(yaml.getStringList(property.prop())));
+                } catch (YamlKeyNotFoundException ignored) {
+                }
+            }
+            return Optional.empty();
+        };
+    }
+
+    protected BiFunction<CommandLine, ConfigProperty, Optional<Set<String>>> provideDataCmd() {
+        return (cmd, property) -> {
+            if (cmd.hasOption(property.prop())) {
+                return Optional.of(parse(List.of(cmd.getOptionValues(property.prop()))));
+            }
+            return Optional.empty();
+        };
+    }
+
+    @Override
+    Set<String> parse(String value) {
+        throw new RuntimeException("This should not be called");
+    }
+
+    protected Set<String> parse(List<String> value) {
+        return new HashSet<>(value);
+    }
+
+    @Override
+    boolean isValid(Set<String> result) {
+        return true;
+    }
+
+    @SuppressWarnings("unchecked")
+    protected boolean setValue(Set<String> result) {
+        List<Method> methods = append
+                ? Arrays.stream(Config.getInstance().getClass().getDeclaredMethods())
+                    .filter(containsGetterOf(property))
+                    .collect(Collectors.toList())
+                : Arrays.stream(Config.getInstance().getClass().getDeclaredMethods())
+                    .filter(containsSetterOf(property))
+                    .collect(Collectors.toList());
+        if (methods.size() != 1) {
+            return false;
+        }
+        try {
+            if (append) {
+                ((Set<String>) methods.get(0).invoke(Config.getInstance())).addAll(result);
+            } else {
+                methods.get(0).invoke(Config.getInstance(), result);
+            }
+        } catch (IllegalAccessException | InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+        return true;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/ThreadValidator.java

@@ -0,0 +1,26 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import org.apache.commons.lang3.math.NumberUtils;
+
+public class ThreadValidator extends ConfigValidator<Integer>{
+    public ThreadValidator(ConfigProperty property, boolean required, Integer defaultValue) {
+        super(property, required, defaultValue);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    Integer parse(String value) {
+        return NumberUtils.isParsable(value) ? Integer.parseInt(value) : defaultValue;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    boolean isValid(Integer result) {
+        return result > 0;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/exceptions/MkvToolNixException.java

@@ -0,0 +1,13 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.exceptions;
+
+public class MkvToolNixException extends RuntimeException{
+
+    public MkvToolNixException(String message) {
+        super(message);
+    }
+
+    @Override
+    public String getMessage() {
+        return super.getMessage().replaceAll("\\r|\\n", " ");
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/FileCollector.java

@@ -0,0 +1,22 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import java.io.File;
+import java.util.List;
+
+public interface FileCollector {
+
+    /**
+     * @param path leads to one file directly or a directory which will be loaded recursively
+     * @return list of all files within the directory
+     */
+    List<File> loadFiles(String path);
+
+    /**
+     * Load all directories from path, but only until depth is reached.
+     *
+     * @param path leads to a directory which will be loaded recursively until depth
+     * @param depth limit directory crawling
+     * @return list of directory until depth
+     */
+    List<File> loadDirectories(String path, int depth);
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/FileFilter.java

@@ -0,0 +1,51 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ResultStatistic;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.DateUtils;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.Date;
+
+@Slf4j
+public class FileFilter {
+    static boolean accept(File pathName, String[] fileExtensions) {
+        if (hasProperFileExtension(pathName, fileExtensions)
+                && hasMatchingPattern(pathName)
+                && isNewer(pathName)) {
+            return true;
+        }
+
+        ResultStatistic.getInstance().excluded();
+        return false;
+    }
+
+    private static boolean hasProperFileExtension(File pathName, String[] fileExtensions) {
+        return StringUtils.endsWithAny(pathName.getAbsolutePath().toLowerCase(), fileExtensions);
+    }
+
+    private static boolean hasMatchingPattern(File pathName) {
+        return Config.getInstance().getIncludePattern().matcher(pathName.getName()).matches();
+    }
+
+    private static boolean isNewer(File pathName) {
+        Config config = Config.getInstance();
+        if (config.getFilterDate() == null) return true;
+        try {
+            BasicFileAttributes attributes = Files.readAttributes(pathName.toPath(), BasicFileAttributes.class);
+            return isNewer(DateUtils.convert(attributes.creationTime().toMillis()));
+        } catch (IOException e) {
+            log.warn("File attributes could not be read.", e);
+        }
+        return true;
+    }
+
+    private static boolean isNewer(Date creationDate) {
+        return creationDate.toInstant().isAfter(Config.getInstance().getFilterDate().toInstant());
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/FileProcessor.java

@@ -0,0 +1,52 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.exceptions.MkvToolNixException;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileInfoDto;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+public interface FileProcessor {
+
+    /**
+     * Load track information from file.
+     *
+     * @param file Takes the file from which the attributes will be returned
+     * @return list of all important attributes
+     */
+    List<FileAttribute> loadAttributes(File file);
+
+    /**
+     * Populate FileInfoDto with the currently set default tracks.
+     * @param info to be populated
+     * @param attributes Track information of FileInfoDto
+     * @param nonForcedTracks List of all not forced tracks
+     */
+    void detectDefaultTracks(FileInfoDto info, List<FileAttribute> attributes, List<FileAttribute> nonForcedTracks);
+
+    /**
+     * Populate FileInfoDto with the desired tracks, based on AttributeConfig.
+     * @param info to be populated
+     * @param nonForcedTracks List of all not forced tracks
+     * @param nonCommentaryTracks  List of all not commentary tracks
+     * @param configs
+     */
+    void detectDesiredTracks(FileInfoDto info, List<FileAttribute> nonForcedTracks, List<FileAttribute> nonCommentaryTracks,
+                             AttributeConfig... configs);
+
+    List<FileAttribute> retrieveNonForcedTracks(List<FileAttribute> attributes);
+
+    List<FileAttribute> retrieveNonCommentaryTracks(List<FileAttribute> attributes);
+
+    /**
+     * Update the file.
+     * @param file to be updated
+     * @param fileInfo information to update file
+     * @throws IOException
+     * @throws MkvToolNixException when error occurs while sending query to mkvpropedit
+     */
+    void update(File file, FileInfoDto fileInfo) throws IOException, MkvToolNixException;
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/MkvFileCollector.java

@@ -0,0 +1,49 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import lombok.extern.slf4j.Slf4j;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@Slf4j
+public class MkvFileCollector implements FileCollector {
+    private static final String[] fileExtensions = new String[]{".mkv", ".mka", ".mks", ".mk3d"};
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public List<File> loadFiles(String path) {
+        try (Stream<Path> paths = Files.walk(Paths.get(path))) {
+            return paths.filter(Files::isRegularFile)
+                    .map(Path::toFile)
+                    .filter(file -> FileFilter.accept(file, fileExtensions))
+                    .collect(Collectors.toList());
+        } catch (IOException e) {
+            log.error("Couldn't find file or directory!", e);
+            return new ArrayList<>();
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public List<File> loadDirectories(String path, int depth) {
+        try (Stream<Path> paths = Files.walk(Paths.get(path), depth)) {
+            return paths.map(Path::toFile)
+                    .filter(File::isDirectory)
+                    .collect(Collectors.toList());
+        } catch (IOException e) {
+            log.error("Couldn't find file or directory!", e);
+            return new ArrayList<>();
+        }
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/MkvFileProcessor.java

@@ -0,0 +1,186 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.exceptions.MkvToolNixException;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.*;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.SetUtils;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.core.util.IOUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.*;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.LaneType.AUDIO;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.LaneType.SUBTITLES;
+import static java.lang.String.format;
+
+@Slf4j
+public class MkvFileProcessor implements FileProcessor {
+    private final ObjectMapper mapper = new ObjectMapper();
+
+    private static final SubtitleTrackComparator subtitleTrackComparator =
+            new SubtitleTrackComparator(Config.getInstance().getPreferredSubtitles().toArray(new String[0]));
+
+    private static final String DISABLE_DEFAULT_TRACK = "--edit track:%s --set flag-default=0 ";
+    private static final String ENABLE_DEFAULT_TRACK = "--edit track:%s --set flag-default=1 ";
+    private static final String ENABLE_FORCED_TRACK = "--edit track:%s --set flag-forced=1 ";
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public List<FileAttribute> loadAttributes(File file) {
+        Map<String, Object> jsonMap;
+        List<FileAttribute> fileAttributes = new ArrayList<>();
+        try {
+            String command = format("\"%s\"", Config.getInstance().getPathFor(MkvToolNix.MKV_MERGER));
+            String[] arguments = new String[]{
+                    command,
+                    "--identify",
+                    "--identification-format",
+                    "json",
+                    file.getAbsoluteFile().toString()
+            };
+
+            InputStream inputStream = Runtime.getRuntime().exec(arguments).getInputStream();
+            jsonMap = mapper.readValue(inputStream, Map.class);
+            List<Map<String, Object>> tracks = (List<Map<String, Object>>) jsonMap.get("tracks");
+            if (tracks == null) {
+                log.warn("Couldn't retrieve information of {}", file.getAbsolutePath());
+                return new ArrayList<>();
+            }
+            for (Map<String, Object> attribute : tracks) {
+                if (!"video".equals(attribute.get("type"))) {
+                    Map<String, Object> properties = (Map<String, Object>) attribute.get("properties");
+                    fileAttributes.add(new FileAttribute(
+                            (int) properties.get("number"),
+                            (String) properties.get("language"),
+                            (String) properties.get("track_name"),
+                            (Boolean) properties.getOrDefault("default_track", false),
+                            (Boolean) properties.getOrDefault("forced_track", false),
+                            LaneType.valueOf(((String) attribute.get("type")).toUpperCase(Locale.ENGLISH))));
+                }
+            }
+
+            log.debug(fileAttributes.toString());
+        } catch (IOException e) {
+            e.printStackTrace();
+            log.error("File could not be found or loaded!");
+        }
+        return fileAttributes;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void detectDefaultTracks(FileInfoDto info, List<FileAttribute> attributes, List<FileAttribute> nonForcedTracks) {
+        Set<FileAttribute> detectedForcedSubtitleLanes = new HashSet<>();
+        for (FileAttribute attribute : attributes) {
+            if (attribute.isDefaultTrack() && AUDIO.equals(attribute.getType()))
+                info.getDefaultAudioLanes().add(attribute);
+            if (attribute.isDefaultTrack() && SUBTITLES.equals(attribute.getType()))
+                info.getDefaultSubtitleLanes().add(attribute);
+            if (attribute.isForcedTrack() && SUBTITLES.equals(attribute.getType()))
+                detectedForcedSubtitleLanes.add(attribute);
+        }
+
+        info.setDesiredForcedSubtitleLanes(attributes.stream()
+                .filter(e -> !nonForcedTracks.contains(e))
+                .filter(e -> !detectedForcedSubtitleLanes.contains(e))
+                .collect(Collectors.toSet())
+        );
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void detectDesiredTracks(FileInfoDto info, List<FileAttribute> nonForcedTracks, List<FileAttribute> nonCommentaryTracks,
+                                    AttributeConfig... configs) {
+        Set<FileAttribute> tracks = SetUtils.retainOf(nonForcedTracks, nonCommentaryTracks);
+        Set<FileAttribute> audioTracks = tracks.stream().filter(a -> AUDIO.equals(a.getType())).collect(Collectors.toSet());
+        Set<FileAttribute> subtitleTracks = tracks.stream().filter(a -> SUBTITLES.equals(a.getType())).collect(Collectors.toSet());
+
+        for (AttributeConfig config : configs) {
+            Optional<FileAttribute> desiredAudio = detectDesiredTrack(config.getAudioLanguage(), audioTracks).findFirst();
+            Optional<FileAttribute> desiredSubtitle = detectDesiredSubtitleTrack(config.getSubtitleLanguage(), subtitleTracks).findFirst();
+
+            if (desiredAudio.isPresent() && desiredSubtitle.isPresent()) {
+                info.setDesiredAudioLane(desiredAudio.get());
+                info.setDesiredSubtitleLane(desiredSubtitle.get());
+                break;
+            }
+        }
+    }
+
+    private Stream<FileAttribute> detectDesiredTrack(String language, Set<FileAttribute> tracks) {
+        return tracks.stream().filter(track -> language.equals(track.getLanguage()));
+    }
+
+    private Stream<FileAttribute> detectDesiredSubtitleTrack(String language, Set<FileAttribute> tracks) {
+        return detectDesiredTrack(language, tracks)
+                .sorted(subtitleTrackComparator.reversed());
+    }
+
+    @Override
+    public List<FileAttribute> retrieveNonForcedTracks(List<FileAttribute> attributes) {
+        return attributes.stream()
+                .filter(elem -> !StringUtils.containsAnyIgnoreCase(elem.getTrackName(),
+                        Config.getInstance().getForcedKeywords().toArray(new CharSequence[0])))
+                .filter(elem -> !elem.isForcedTrack())
+                .collect(Collectors.toList());
+    }
+
+    @Override
+    public List<FileAttribute> retrieveNonCommentaryTracks(List<FileAttribute> attributes) {
+        return attributes.stream()
+                .filter(elem -> !StringUtils.containsAnyIgnoreCase(elem.getTrackName(),
+                        Config.getInstance().getCommentaryKeywords().toArray(new CharSequence[0])))
+                .collect(Collectors.toList());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void update(File file, FileInfoDto fileInfo) throws IOException, MkvToolNixException {
+        StringBuilder sb = new StringBuilder();
+        sb.append(format("\"%s\" ", Config.getInstance().getPathFor(MkvToolNix.MKV_PROP_EDIT)));
+        sb.append(format("\"%s\" ", file.getAbsolutePath()));
+
+        if (fileInfo.isAudioDifferent()) {
+            if (fileInfo.getDefaultAudioLanes() != null && !fileInfo.getDefaultSubtitleLanes().isEmpty()) {
+                for (FileAttribute track: fileInfo.getDefaultAudioLanes()) {
+                    sb.append(format(DISABLE_DEFAULT_TRACK, track.getId()));
+                }
+            }
+            sb.append(format(ENABLE_DEFAULT_TRACK, fileInfo.getDesiredAudioLane().getId()));
+        }
+
+        if (fileInfo.isSubtitleDifferent()) {
+            if (fileInfo.getDefaultSubtitleLanes() != null && !fileInfo.getDefaultSubtitleLanes().isEmpty()) {
+                for (FileAttribute track: fileInfo.getDefaultSubtitleLanes()) {
+                    sb.append(format(DISABLE_DEFAULT_TRACK, track.getId()));
+                }
+            }
+            sb.append(format(ENABLE_DEFAULT_TRACK, fileInfo.getDesiredSubtitleLane().getId()));
+        }
+
+        if (fileInfo.areForcedTracksDifferent()) {
+            for (FileAttribute attribute : fileInfo.getDesiredForcedSubtitleLanes()) {
+                sb.append(format(ENABLE_FORCED_TRACK, attribute.getId()));
+            }
+        }
+
+        InputStream inputstream = Runtime.getRuntime().exec(sb.toString()).getInputStream();
+        String output = IOUtils.toString(new InputStreamReader(inputstream));
+        log.debug(output);
+        if (output.contains("Error")) throw new MkvToolNixException(output);
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/SubtitleTrackComparator.java

@@ -0,0 +1,34 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
+import lombok.RequiredArgsConstructor;
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.Comparator;
+
+@RequiredArgsConstructor
+public class SubtitleTrackComparator implements Comparator<FileAttribute> {
+    private final String[] preferredSubtitles;
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int compare(FileAttribute track1, FileAttribute track2) {
+        int result = 0;
+
+        if (StringUtils.containsAnyIgnoreCase(track1.getTrackName(), preferredSubtitles)) {
+            result++;
+        }
+        if (StringUtils.containsAnyIgnoreCase(track2.getTrackName(), preferredSubtitles)) {
+            result--;
+        }
+
+        if (result == 0) {
+            if (track1.isDefaultTrack()) result++;
+            if (track2.isDefaultTrack()) result--;
+        }
+
+        return result;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/kernel/AttributeUpdaterKernel.java

@@ -0,0 +1,173 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.kernel;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.exceptions.MkvToolNixException;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.FileCollector;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.FileProcessor;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileInfoDto;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ResultStatistic;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.DateUtils;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.ProjectUtil;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import lombok.RequiredArgsConstructor;
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+import me.tongfei.progressbar.ProgressBar;
+import me.tongfei.progressbar.ProgressBarBuilder;
+import me.tongfei.progressbar.ProgressBarStyle;
+import net.harawata.appdirs.AppDirsFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.Collection;
+import java.util.Date;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+@Slf4j
+@RequiredArgsConstructor
+public abstract class AttributeUpdaterKernel {
+
+    protected final FileCollector collector;
+    protected final FileProcessor processor;
+    protected final ResultStatistic statistic = ResultStatistic.getInstance();
+    private final ExecutorService executor = Executors.newFixedThreadPool(Config.getInstance().getThreads());
+
+    protected ProgressBarBuilder pbBuilder() {
+        return new ProgressBarBuilder()
+                .setStyle(ProgressBarStyle.ASCII)
+                .setUpdateIntervalMillis(250)
+                .setMaxRenderedLength(75);
+    }
+
+    @SneakyThrows
+    public void execute() {
+        statistic.startTimer();
+
+        try (ProgressBar progressBar = pbBuilder().build()) {
+            List<File> files = loadFiles(Config.getInstance().getLibraryPath().getAbsolutePath());
+            progressBar.maxHint(files.size());
+
+            files.forEach(file -> executor.submit(() -> {
+                process(file);
+                progressBar.step();
+            }));
+
+            executor.shutdown();
+            executor.awaitTermination(1, TimeUnit.DAYS);
+        }
+
+        endProcess();
+
+        statistic.stopTimer();
+        statistic.printResult();
+    }
+
+    protected List<File> loadExcludedFiles() {
+        List<File> excludedFiles = Config.getInstance().getExcludedDirectories().stream()
+                .map(collector::loadFiles)
+                .flatMap(Collection::stream)
+                .collect(Collectors.toList());
+        statistic.increaseTotalBy(excludedFiles.size());
+        statistic.increaseExcludedBy(excludedFiles.size());
+        return excludedFiles;
+    }
+
+    /**
+     * Load files or directories to update.
+     * Remove excluded directories.
+     *
+     * @param path Path to library
+     * @return List of files to update.
+     */
+    abstract List<File> loadFiles(String path);
+
+    /**
+     * Start of the file updating process.
+     * This method is called by the executor and its contents are executed in parallel.
+     *
+     * @param file file or directory to update
+     */
+    void process(File file) {
+        FileInfoDto fileInfo = new FileInfoDto(file);
+        List<FileAttribute> attributes = processor.loadAttributes(file);
+
+        List<FileAttribute> nonForcedTracks = processor.retrieveNonForcedTracks(attributes);
+        List<FileAttribute> nonCommentaryTracks = processor.retrieveNonCommentaryTracks(attributes);
+
+        processor.detectDefaultTracks(fileInfo, attributes, nonForcedTracks);
+        processor.detectDesiredTracks(fileInfo, nonForcedTracks, nonCommentaryTracks,
+                Config.getInstance().getAttributeConfig().toArray(new AttributeConfig[]{}));
+
+        updateFile(fileInfo);
+    }
+
+    /**
+     * Persist file changes.
+     *
+     * @param fileInfoDto contains information about file and desired configuration.
+     */
+    protected void updateFile(FileInfoDto fileInfoDto) {
+        switch (fileInfoDto.getStatus()) {
+            case CHANGE_NECESSARY:
+                statistic.shouldChange();
+                commitChange(fileInfoDto);
+                break;
+            case UNABLE_TO_APPLY:
+                statistic.noSuitableConfigFound();
+                break;
+            case ALREADY_SUITED:
+                statistic.alreadyFits();
+                break;
+            case UNKNOWN:
+            default:
+                statistic.failure();
+                break;
+        }
+    }
+
+    private void commitChange(FileInfoDto fileInfo) {
+        if (Config.getInstance().isSafeMode()) {
+            return;
+        }
+
+        try {
+            statistic.total();
+            processor.update(fileInfo.getFile(), fileInfo);
+            statistic.success();
+            log.info("Updated {}", fileInfo.getFile().getAbsolutePath());
+        } catch (IOException | MkvToolNixException e) {
+            statistic.failedChanging();
+            log.warn("File couldn't be updated: '{}', Error: {}", fileInfo.getFile().getAbsoluteFile(), e.getMessage());
+        }
+    }
+
+    protected void endProcess() {
+        if (Config.getInstance().isSafeMode()) {
+            return;
+        }
+
+        try {
+            String filePath = AppDirsFactory.getInstance().getUserConfigDir(ProjectUtil.getProjectName(), null, null);
+
+            File configDir = Path.of(filePath).toFile();
+            if (!configDir.exists()) configDir.mkdirs();
+
+            File lastExecutionFile = Path.of(filePath + "/last-execution.yml").toFile();
+            if (!lastExecutionFile.exists()) lastExecutionFile.createNewFile();
+
+            YAML yaml = new YAML(lastExecutionFile);
+            yaml.set(Config.getInstance().getNormalizedLibraryPath(), DateUtils.convert(new Date()));
+            yaml.save(lastExecutionFile);
+        } catch (IOException | YamlInvalidContentException e) {
+            log.error("last-execution.yml could not be created or read.", e);
+        }
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/kernel/CoherentAttributeUpdaterKernel.java

@@ -0,0 +1,111 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.kernel;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.FileCollector;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.FileProcessor;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileInfoDto;
+import lombok.extern.slf4j.Slf4j;
+import me.tongfei.progressbar.ProgressBarBuilder;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@Slf4j
+public class CoherentAttributeUpdaterKernel extends AttributeUpdaterKernel {
+
+    public CoherentAttributeUpdaterKernel(FileCollector collector, FileProcessor processor) {
+        super(collector, processor);
+    }
+
+    @Override
+    protected ProgressBarBuilder pbBuilder() {
+        return super.pbBuilder()
+                .setUnit(" directories", 1);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    List<File> loadFiles(String path) {
+        List<File> excludedFiles = loadExcludedFiles();
+        List<File> directories = collector.loadDirectories(path, Config.getInstance().getCoherent())
+                .stream().filter(file -> !excludedFiles.contains(file))
+                .collect(Collectors.toList());
+        return directories.stream()
+                .filter(dir -> isParentDirectory(dir, directories))
+                .collect(Collectors.toList());
+    }
+
+    private boolean isParentDirectory(File directory, List<File> directories) {
+        String path = directory.getAbsolutePath();
+        return directories.stream()
+                .noneMatch(dir -> dir.getAbsolutePath().contains(path) && !StringUtils.equals(path, dir.getAbsolutePath()));
+    }
+
+    /**
+     * Update files in directory, if possible, with the same {@link AttributeConfig}.
+     * If {@link Config#isForceCoherent()} then there will be no changes to the file if they don't match the same config.
+     * Otherwise, the default behaviour is executed.
+     * This method is called by the executor and is run in parallel.
+     *
+     * @param file directory containing files
+     */
+    @Override
+    void process(File file) {
+        // TODO: Implement level crawl if coherence is not possible on user entered depth
+        // IMPL idea: recursive method call, cache needs to be implemented
+        List<FileInfoDto> fileInfos = collector.loadFiles(file.getAbsolutePath())
+                .stream().map(FileInfoDto::new)
+                .collect(Collectors.toList());
+
+        Map<FileInfoDto, List<FileAttribute>> fileAttributeCache = new HashMap<>();
+        for (FileInfoDto fileInfo : fileInfos) {
+            if (!Config.getInstance().getIncludePattern().matcher(fileInfo.getFile().getAbsolutePath()).matches()) {
+                statistic.excluded();
+                continue;
+            }
+            fileAttributeCache.put(fileInfo, processor.loadAttributes(fileInfo.getFile()));
+        }
+
+        for (AttributeConfig config : Config.getInstance().getAttributeConfig()) {
+
+            for (FileInfoDto fileInfo : fileInfos) {
+                List<FileAttribute> attributes = fileAttributeCache.get(fileInfo);
+
+                List<FileAttribute> nonForcedTracks = processor.retrieveNonForcedTracks(attributes);
+                List<FileAttribute> nonCommentaryTracks = processor.retrieveNonCommentaryTracks(attributes);
+
+                processor.detectDefaultTracks(fileInfo, attributes, nonForcedTracks);
+                processor.detectDesiredTracks(fileInfo, nonForcedTracks, nonCommentaryTracks, config);
+            }
+
+            if (fileInfos.stream().allMatch(elem -> elem.getDesiredSubtitleLane() != null && elem.getDesiredAudioLane() != null)) {
+                log.info("Found {}/{} match for {}", config.getAudioLanguage(), config.getSubtitleLanguage(), file.getAbsolutePath());
+                statistic.increaseTotalBy(fileInfos.size());
+                fileInfos.forEach(this::updateFile);
+                return; // match found, end process here
+            }
+
+            fileInfos.forEach(f -> {
+                f.setDesiredAudioLane(null);
+                f.setDesiredSubtitleLane(null);
+            });
+        }
+
+        for (FileInfoDto fileInfo : fileInfos) {
+            statistic.total();
+            if (Config.getInstance().isForceCoherent()) {
+                super.process(fileInfo.getFile());
+            } else {
+                statistic.excluded();
+            }
+        }
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/kernel/DefaultAttributeUpdaterKernel.java

@@ -0,0 +1,36 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.kernel;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.FileCollector;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.impl.FileProcessor;
+import lombok.extern.slf4j.Slf4j;
+import me.tongfei.progressbar.ProgressBarBuilder;
+
+import java.io.File;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Slf4j
+public class DefaultAttributeUpdaterKernel extends AttributeUpdaterKernel {
+
+    public DefaultAttributeUpdaterKernel(FileCollector collector, FileProcessor processor) {
+        super(collector, processor);
+    }
+
+    @Override
+    protected ProgressBarBuilder pbBuilder() {
+        return super.pbBuilder()
+                .setUnit(" files", 1);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    List<File> loadFiles(String path) {
+        List<File> excludedFiles = loadExcludedFiles();
+        return collector.loadFiles(Config.getInstance().getLibraryPath().getAbsolutePath()).stream()
+                .filter(file -> !excludedFiles.contains(file))
+                .collect(Collectors.toList());
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/intimpl/FileCollector.java

@@ -1,12 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger.intimpl;
-
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
-
-import java.io.File;
-import java.util.List;
-
-public interface FileCollector {
-    List<File> loadFiles(String path);
-
-    List<FileAttribute> loadAttributes(File file);
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/intimpl/MkvFileCollector.java

@@ -1,99 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger.intimpl;
-
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.MKVToolProperties;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import lombok.extern.log4j.Log4j2;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-@Log4j2
-public class MkvFileCollector implements FileCollector {
-    private final ObjectMapper mapper = new ObjectMapper();
-
-    /**
-     * @param path Is entered path, which leads to one file directly or a directory which will be loaded recursive
-     * @return list of all files within the directory, if it's only a file, the file will be returned in a list
-     */
-    @Override
-    public List<File> loadFiles(String path) {
-        File file = new File(path);
-        if (file.isFile() && file.getAbsolutePath().endsWith(".mkv")) {
-            return new ArrayList<File>() {{
-                add(file);
-            }};
-        } else if (file.isDirectory()) {
-            try (Stream<Path> paths = Files.walk(Paths.get(path))) {
-                return paths
-                        .filter(Files::isRegularFile)
-                        .map(Path::toFile)
-                        .filter(f -> f.getAbsolutePath().endsWith(".mkv"))
-                        .collect(Collectors.toList());
-            } catch (IOException e) {
-                log.error("Couldn't find file or directory!", e);
-                return null;
-            }
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * @param file Takes the file from which the attributes will be returned
-     * @return list of all important attributes
-     */
-    @Override
-    public List<FileAttribute> loadAttributes(File file) {
-        Map<String, Object> jsonMap;
-        List<FileAttribute> fileAttributes = new ArrayList<>();
-        try {
-            String command = "";
-            if (System.getProperty("os.name").toLowerCase().contains("windows")) {
-                command = "\"" + MKVToolProperties.getInstance().getMkvmergePath() + "\"";
-            } else {
-                command = MKVToolProperties.getInstance().getMkvmergePath();
-            }
-            String[] array = new String[]{
-                    command,
-                    "--identify",
-                    "--identification-format",
-                    "json",
-                    file.getAbsoluteFile().toString()
-            };
-
-            InputStream inputStream = Runtime.getRuntime().exec(array).getInputStream();
-            jsonMap = mapper.readValue(inputStream, Map.class);
-            List<Map<String, Object>> tracks = (List<Map<String, Object>>) jsonMap.get("tracks");
-            if (tracks == null) {
-                log.warn("Couldn't retrieve information of {}", file.getAbsoluteFile().toString());
-                return new ArrayList<>();
-            }
-            for (Map<String, Object> attribute : tracks) {
-                if (!"video".equals(attribute.get("type"))) {
-                    Map<String, Object> properties = (Map<String, Object>) attribute.get("properties");
-                    fileAttributes.add(new FileAttribute(
-                            (int) properties.get("number"),
-                            (String) properties.get("language"),
-                            (String) properties.get("track_name"),
-                            (Boolean) properties.getOrDefault("default_track", false),
-                            (Boolean) properties.getOrDefault("forced_track", false),
-                            (String) attribute.get("type")));
-                }
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-            log.error("File could not be found or loaded!");
-        }
-        return fileAttributes;
-    }
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/AttributeConfig.java

@@ -0,0 +1,36 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.Objects;
+
+@Slf4j
+@Getter
+@AllArgsConstructor
+public class AttributeConfig {
+    private final String audioLanguage;
+    private final String subtitleLanguage;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        AttributeConfig that = (AttributeConfig) o;
+        return Objects.equals(audioLanguage, that.audioLanguage) && Objects.equals(subtitleLanguage, that.subtitleLanguage);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(audioLanguage, subtitleLanguage);
+    }
+
+    @Override
+    public String toString() {
+        return "AttributeConfig{"
+                + "audioLanguage='" + audioLanguage + '\''
+                + ", subtitleLanguage='" + subtitleLanguage + '\'' +
+                '}';
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/ConfigProperty.java

@@ -0,0 +1,68 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+import lombok.AllArgsConstructor;
+import org.apache.commons.cli.Option;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@AllArgsConstructor
+public enum ConfigProperty {
+    LIBRARY("library-path", "Path to library", "l", 1),
+    ATTRIBUTE_CONFIG("attribute-config", "Attribute config to decide which tracks to choose when", "a", Option.UNLIMITED_VALUES),
+    CONFIG_PATH("config-path", "Path to config file", "p", 1),
+    MKV_TOOL_NIX("mkvtoolnix", "Path to mkv tool nix installation", "m", 1),
+    SAFE_MODE("safe-mode", "Test run (no files will be changes)", "s", 0),
+    COHERENT("coherent", "Try to match all files in dir of depth with the same config", "c", 1),
+    FORCE_COHERENT("force-coherent", "Force coherent and don't update anything if config fits not whole config (default: false)", "cf", 0),
+    WINDOWS("windows", "Is operating system windows", null, 0),
+    ONLY_NEW_FILES("only-new-files", "Sets filter-date to last successful execution (Overwrites input of filter-date)", "n", 0),
+    FILTER_DATE("filter-date", "Only consider files created newer than entered date (format: \"dd.MM.yyyy-HH:mm:ss\")", "d", 1),
+    THREADS("threads", "Thread count (default: 2)", "t", 1),
+    INCLUDE_PATTERN("include-pattern", "Include files matching pattern (default: \".*\")", "i", 1),
+    EXCLUDED_DIRECTORY("excluded-directories", "Directories to be excluded, combines with config file", "e", Option.UNLIMITED_VALUES),
+    FORCED_KEYWORDS("forced-keywords", "Additional keywords to identify forced tracks", "fk", Option.UNLIMITED_VALUES),
+    COMMENTARY_KEYWORDS("commentary-keywords", "Additional keywords to identify commentary tracks", "ck", Option.UNLIMITED_VALUES),
+    PREFERRED_SUBTITLES("preferred-subtitles", "Additional keywords to prefer specific subtitle tracks", "ps", Option.UNLIMITED_VALUES),
+    ARGUMENTS("arguments", "List of arguments", null, 0),
+    VERSION("version", "Display version", "v", 0),
+    HELP("help", "\"For help this is\" - Yoda", "h", 0);
+
+    /*
+     * Verify at startup that there are no duplicated shortParameters.
+     */
+    static {
+        Set<String> shortParameters = new HashSet<>();
+        for (String param : Arrays.stream(ConfigProperty.values()).map(ConfigProperty::abrv).collect(Collectors.toList())) {
+            if (shortParameters.contains(param)) {
+                throw new IllegalStateException("It is not allowed to have multiple properties with the same abbreviation!");
+            }
+            if (param != null) {
+                shortParameters.add(param);
+            }
+        }
+    }
+
+    private final String property;
+    private final String description;
+    private final String shortParameter;
+    private final int args;
+
+    public String prop() {
+        return property;
+    }
+
+    public String desc() {
+        return description;
+    }
+
+    public String abrv() {
+        return shortParameter;
+    }
+
+    public int args() {
+        return args;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/FileAttribute.java

@@ -1,57 +1,48 @@
 package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
 
+import lombok.AllArgsConstructor;
 import lombok.Getter;
-import lombok.extern.log4j.Log4j2;
+import lombok.extern.slf4j.Slf4j;
 
-import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.List;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
+import java.util.Objects;
 
-@Log4j2
+@Slf4j
 @Getter
+@AllArgsConstructor
 public class FileAttribute {
-    private int id;
-    private String language;
-    private String trackName;
-    private boolean defaultTrack;
-    private boolean forcedTrack;
-    private String type;
+    private final int id;
+    private final String language;
+    private final String trackName;
+    private final boolean defaultTrack;
+    private final boolean forcedTrack;
+    private final LaneType type;
 
-    public FileAttribute(int id, String language, String trackName, boolean defaultTrack, boolean forcedTrack, String type) {
-        this.id = id;
-        this.language = language;
-        this.trackName = trackName;
-        this.defaultTrack = defaultTrack;
-        this.forcedTrack = forcedTrack;
-        this.type = type;
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        FileAttribute attribute = (FileAttribute) o;
+        return id == attribute.id
+                && defaultTrack == attribute.defaultTrack
+                && forcedTrack == attribute.forcedTrack
+                && Objects.equals(language, attribute.language)
+                && Objects.equals(trackName, attribute.trackName)
+                && type == attribute.type;
     }
 
-    public static boolean pathIsValid(String path) {
-        File file = new File(path);
-        if(file.isFile()){
-            return file.getAbsolutePath().endsWith(".mkv");
-        }
-        if(file.isDirectory()){
-            try(Stream<Path> paths = Files.walk(Paths.get(path))){
-                List<String> allPaths = paths
-                        .filter(Files::isRegularFile)
-                        .map(f -> f.toAbsolutePath().toString())
-                        .collect(Collectors.toList());
-                for(String filePath : allPaths){
-                    if(! filePath.endsWith(".mkv")){
-                        return false;
-                    }
-                }
-            }catch(IOException e){
-                log.error("Couldn't find file or directory!", e);
-            }
-            return true;
-        }
-        return false;
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, language, trackName, defaultTrack, forcedTrack, type);
+    }
+
+    @Override
+    public String toString() {
+        return "[" + "id=" + id +
+                ", language='" + language + '\'' +
+                ", trackName='" + trackName + '\'' +
+                ", defaultTrack=" + defaultTrack +
+                ", forcedTrack=" + forcedTrack +
+                ", type=" + type +
+                ']';
     }
 }

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/FileInfoDto.java

@@ -0,0 +1,64 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+
+import java.io.File;
+import java.util.HashSet;
+import java.util.Set;
+
+@Getter
+@Setter
+@RequiredArgsConstructor
+public class FileInfoDto {
+    private final File file;
+    private Set<FileAttribute> defaultAudioLanes = new HashSet<>();
+    private Set<FileAttribute> defaultSubtitleLanes = new HashSet<>();
+    private Set<FileAttribute> desiredForcedSubtitleLanes;
+    private FileAttribute desiredAudioLane;
+    private FileAttribute desiredSubtitleLane;
+
+    public boolean isAudioDifferent() {
+        return desiredAudioLane != null &&
+                (defaultAudioLanes == null || !defaultAudioLanes.contains(desiredAudioLane));
+    }
+
+    public boolean isSubtitleDifferent() {
+        return desiredSubtitleLane != null &&
+                (defaultSubtitleLanes == null || !defaultSubtitleLanes.contains(desiredSubtitleLane));
+    }
+
+    public boolean areForcedTracksDifferent() {
+        return desiredForcedSubtitleLanes.size() > 0;
+    }
+
+    public FileStatus getStatus() {
+        if (isChangeNecessary()) return FileStatus.CHANGE_NECESSARY;
+        if (isUnableToApplyConfig()) return FileStatus.UNABLE_TO_APPLY;
+        if (isAlreadySuitable()) return FileStatus.ALREADY_SUITED;
+        return FileStatus.UNKNOWN;
+    }
+
+    private boolean isUnableToApplyConfig() {
+        return desiredAudioLane == null && desiredSubtitleLane == null;
+    }
+
+    private boolean isAlreadySuitable() {
+        return defaultAudioLanes.contains(desiredAudioLane) && defaultSubtitleLanes.contains(desiredSubtitleLane);
+    }
+
+    private boolean isChangeNecessary() {
+        return isAudioDifferent() || isSubtitleDifferent() || areForcedTracksDifferent();
+    }
+
+    @Override
+    public String toString() {
+        return "[" + "defaultAudioLanes=" + defaultAudioLanes +
+                ", defaultSubtitleLanes=" + defaultSubtitleLanes +
+                ", desiredForcedSubtitleLanes=" + desiredForcedSubtitleLanes +
+                ", desiredAudioLane=" + desiredAudioLane +
+                ", desiredSubtitleLane=" + desiredSubtitleLane +
+                ']';
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/FileStatus.java

@@ -0,0 +1,8 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+public enum FileStatus {
+    CHANGE_NECESSARY,
+    UNABLE_TO_APPLY,
+    ALREADY_SUITED,
+    UNKNOWN;
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/LaneType.java

@@ -0,0 +1,6 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+public enum LaneType {
+    AUDIO,
+    SUBTITLES;
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/MkvToolNix.java

@@ -0,0 +1,16 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+import lombok.AllArgsConstructor;
+
+@AllArgsConstructor
+public enum MkvToolNix {
+    MKV_MERGER("mkvmerge"),
+    MKV_PROP_EDIT("mkvpropedit");
+
+    private final String file;
+
+    @Override
+    public String toString() {
+        return file;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/ResultStatistic.java

@@ -0,0 +1,131 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.model;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+
+@Getter
+@Slf4j
+public class ResultStatistic {
+    private static final String result = "Total files: %s%n" +
+            "├─ Excluded: %s%n" +
+            "├─ Should change: %s%n" +
+            "│  ├─ Failed changing: %s%n" +
+            "│  └─ Successfully changed: %s%n" +
+            "├─ No suitable config found: %s%n" +
+            "├─ Already fit config: %s%n" +
+            "└─ Failed: %s%n" +
+            "Runtime: %s";
+    private static ResultStatistic instance;
+    private int filesTotal = 0;
+    private int excluded = 0;
+
+    private int shouldChange = 0;
+    private int failedChanging = 0;
+    private int successfullyChanged = 0;
+
+    private int noSuitableConfigFound = 0;
+    private int alreadyFits = 0;
+    private int failed = 0;
+
+    @Getter(AccessLevel.NONE)
+    private long startTime = 0;
+    private long runtime = 0;
+
+    public static ResultStatistic getInstance() {
+        if (instance == null) {
+            instance = new ResultStatistic();
+        }
+        return instance;
+    }
+
+    public void increaseTotalBy(int amount) {
+        filesTotal += amount;
+    }
+
+    public synchronized void total() {
+        filesTotal++;
+    }
+
+    public void increaseExcludedBy(int amount) {
+        excluded += amount;
+    }
+
+    public synchronized void excluded() {
+        excluded++;
+    }
+
+    public synchronized void shouldChange() {
+        shouldChange++;
+    }
+
+    public synchronized void success() {
+        successfullyChanged++;
+    }
+
+    public synchronized void failedChanging() {
+        failedChanging++;
+    }
+
+    public synchronized void noSuitableConfigFound() {
+        noSuitableConfigFound++;
+    }
+
+    public synchronized void alreadyFits() {
+        alreadyFits++;
+    }
+
+    public synchronized void failure() {
+        failed++;
+    }
+
+    public void startTimer() {
+        startTime = System.currentTimeMillis();
+    }
+
+    public void stopTimer() {
+        runtime = System.currentTimeMillis() - startTime;
+    }
+
+    public void printResult() {
+        System.out.println(prettyPrint());
+        log.info(this.toString());
+    }
+
+    private String formatTimer() {
+        int seconds = (int) (runtime / 1000);
+        int minutes = seconds / 60;
+        int hours = minutes / 60;
+        int days = hours / 24;
+
+        if (days >= 1) {
+            return String.format("%sd %sh %sm %ss", days, hours % 24, minutes % 60, seconds % 60);
+        } else if (hours >= 1) {
+            return String.format("%sh %sm %ss", hours, minutes % 60, seconds % 60);
+        } else if (minutes >= 1) {
+            return String.format("%sm %ss", minutes, seconds % 60);
+        } else {
+            return String.format("%ss", seconds % 60);
+        }
+    }
+
+    public String prettyPrint() {
+        return String.format(result, filesTotal, excluded, shouldChange, failedChanging, successfullyChanged,
+                noSuitableConfigFound, alreadyFits, failed, formatTimer());
+    }
+
+    @Override
+    public String toString() {
+        String sb = "ResultStatistic[" + "filesTotal=" + filesTotal +
+                ", excluded=" + excluded +
+                ", shouldChange=" + shouldChange +
+                " (failedChanging=" + failedChanging +
+                ", successfullyChanged=" + successfullyChanged +
+                "), noSuitableConfigFound=" + noSuitableConfigFound +
+                ", alreadyFits=" + alreadyFits +
+                ", failed=" + failed +
+                ", runtime=" + formatTimer() +
+                ']';
+        return sb;
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/CommandLineOptionsUtil.java

@@ -0,0 +1,23 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import org.apache.commons.cli.Option;
+
+public class CommandLineOptionsUtil {
+    public static Option optionOf(ConfigProperty property, String opt, int args) {
+        return optionOf(property, opt, args, false);
+    }
+
+    public static Option optionOf(ConfigProperty property, String opt, boolean hasArg, boolean required) {
+        return optionOf(property, opt, hasArg ? 1 : 0, required);
+    }
+
+    public static Option optionOf(ConfigProperty property, String opt, int args, boolean required) {
+        Option option = new Option(opt, property.desc());
+        option.setArgs(args);
+        option.setLongOpt(property.prop());
+        option.setRequired(required);
+        return option;
+    }
+
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/ConfigUtil.java

@@ -1,40 +0,0 @@
-package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
-
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.AttributeConfig;
-import at.pcgamingfreaks.yaml.YAML;
-import at.pcgamingfreaks.yaml.YamlInvalidContentException;
-import at.pcgamingfreaks.yaml.YamlKeyNotFoundException;
-import lombok.extern.log4j.Log4j2;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.List;
-import java.util.stream.Collectors;
-
-@Log4j2
-public class ConfigUtil {
-    public static List<AttributeConfig> loadConfig() {
-        try(YAML yaml = new YAML(new File("config.yaml"))){
-            return yaml.getKeysFiltered(".*audio.*").stream()
-                    .sorted()
-                    .map(elem -> elem.replace(".audio", ""))
-                    .map(elem -> createAttributeConfig(elem, yaml))
-                    .collect(Collectors.toList());
-        }catch(YamlInvalidContentException | IOException e){
-            log.fatal("Config could not be loaded");
-            e.printStackTrace();
-        }
-        return null;
-    }
-
-    private static AttributeConfig createAttributeConfig(String key, YAML yaml) {
-        try{
-            return new AttributeConfig(
-                    yaml.getStringList(key + ".audio"),
-                    yaml.getStringList(key + ".subtitle"));
-        }catch(YamlKeyNotFoundException e){
-            e.printStackTrace();
-            return null;
-        }
-    }
-}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/DateUtils.java

@@ -0,0 +1,29 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class DateUtils {
+    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("dd.MM.yyyy-HH:mm:ss");
+
+    public static Date convert(long millis) {
+        return new Date(millis);
+    }
+
+    /**
+     * Convert String to date.
+     * @return parsed date, defaultDate if exception occurs
+     */
+    public static Date convert(String date, Date defaultDate) {
+        try {
+            return dateFormat.parse(date);
+        } catch (ParseException e) {
+            return defaultDate;
+        }
+    }
+
+    public static String convert(Date date) {
+        return dateFormat.format(date);
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/LanguageValidatorUtil.java

@@ -0,0 +1,33 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class LanguageValidatorUtil {
+    private static Set<String> ISO3_LANGUAGES;
+
+    static {
+        try {
+            ISO3_LANGUAGES = loadLanguageCodes();
+        } catch (IOException ignored) {}
+    }
+
+    private static Set<String> loadLanguageCodes() throws IOException {
+        try (BufferedReader bf = new BufferedReader(new InputStreamReader(
+                Objects.requireNonNull(LanguageValidatorUtil.class.getClassLoader().getResourceAsStream("language-codes"))))) {
+            return bf.lines().collect(Collectors.toSet());
+        }
+    }
+
+    public static boolean isAudioLanguageValid(String language) {
+        return !language.equals("OFF") && ISO3_LANGUAGES.contains(language);
+    }
+
+    public static boolean isLanguageValid(String language) {
+        return ISO3_LANGUAGES.contains(language);
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/ProjectUtil.java

@@ -0,0 +1,25 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class ProjectUtil {
+    private static final Properties PROJECT_PROPERTIES = new Properties();
+
+    static {
+        try (InputStream propertiesStream = ProjectUtil.class.getClassLoader().getResourceAsStream("project.properties")) {
+            PROJECT_PROPERTIES.load(propertiesStream);
+        } catch (IOException e) {
+            throw new RuntimeException(e.getMessage());
+        }
+    }
+
+    public static String getVersion() {
+        return PROJECT_PROPERTIES.getProperty("version");
+    }
+
+    public static String getProjectName() {
+        return  PROJECT_PROPERTIES.getProperty("project_name");
+    }
+}

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/SetUtils.java

@@ -0,0 +1,13 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class SetUtils {
+    public static <T> Set<T> retainOf(List<T> list1, List<T> list2) {
+        Set<T> set = new HashSet<>(list1);
+        set.retainAll(list2);
+        return set;
+    }
+}

src/main/resources/log4j2-dev.yaml

@@ -0,0 +1,28 @@
+Configuration:
+  name: DefaultLogger
+  Appenders:
+    Console:
+      name: Console_Out
+      PatternLayout:
+        Pattern: "%d{DEFAULT} | %-5level | %thread | %msg %n %throwable"
+      ThresholdFilter:
+        level: debug
+    File:
+      name: FileAppender
+      fileName: default.log
+      PatternLayout:
+        Pattern: "%d{DEFAULT} | %-5level | %thread | %msg %n %throwable"
+      ThresholdFilter:
+        level: debug
+  Loggers:
+    Root:
+      level: debug
+      AppenderRef:
+        - ref: Console_Out
+        - ref: FileAppender
+    Logger:
+      name: "com.zaxxer.hikari.HikariConfig"
+      level: info
+      AppenderRef:
+        - ref: Console_Out
+        - ref: FileAppender

src/main/resources/log4j2.yaml

@@ -1,12 +1,6 @@
 Configuration:
   name: DefaultLogger
   Appenders:
-    Console:
-      name: Console_Out
-      PatternLayout:
-        Pattern: "%d{DEFAULT} | %-5level | %thread | %msg %n %throwable"
-      ThresholdFilter:
-        level: debug
     File:
       name: FileAppender
       fileName: default.log
@@ -16,13 +10,11 @@ Configuration:
         level: info
   Loggers:
     Root:
-      level: debug
+      level: info
       AppenderRef:
-        - ref: Console_Out
         - ref: FileAppender
     Logger:
       name: "com.zaxxer.hikari.HikariConfig"
       level: info
       AppenderRef:
-        - ref: Console_Out
         - ref: FileAppender

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/AttributeConfigValidatorTest.java

@@ -0,0 +1,85 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static org.junit.jupiter.api.Assertions.*;
+
+class AttributeConfigValidatorTest {
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(ATTRIBUTE_CONFIG, ATTRIBUTE_CONFIG.abrv(), ATTRIBUTE_CONFIG.args()));
+    }
+
+    @BeforeEach
+    void beforeEach() {
+        Config.getInstance(true);
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                Arguments.of(attrConfYaml("jpn", "ger"), new String[]{}, VALID, attrConf("jpn", "ger")),
+                Arguments.of("", new String[]{"-a", "jpn:ger"}, VALID, attrConf("jpn", "ger")),
+                Arguments.of(attrConfYaml("jpn", "ger", "jpn", "eng"), new String[]{}, VALID, attrConf("jpn", "ger", "jpn", "eng")),
+                Arguments.of("", new String[]{"-a", "jpn:ger", "jpn:eng"}, VALID, attrConf("jpn", "ger", "jpn", "eng")),
+                Arguments.of(attrConfYaml("jpn", "ger", "jpn", "OFF"), new String[]{}, VALID, attrConf("jpn", "ger", "jpn", "OFF")),
+                Arguments.of("", new String[]{"-a", "jpn:ger", "jpn:OFF"}, VALID, attrConf("jpn", "ger", "jpn", "OFF")),
+                Arguments.of(attrConfYaml("jpn", "invalid"), new String[]{}, INVALID, null),
+                Arguments.of("", new String[]{}, MISSING, null)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(String yamlArgs, String[] cmdArgs, ValidationResult expectedResult, List<AttributeConfig> expectedConfig)
+            throws ParseException, YamlInvalidContentException {
+        AttributeConfigValidator underTest = new AttributeConfigValidator();
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+        assertIterableEquals(expectedConfig, Config.getInstance().getAttributeConfig());
+    }
+
+    private static String attrConfYaml(String... languages) {
+        StringBuilder yaml = new StringBuilder("attribute-config: ");
+        int counter = 0;
+        for (int i = 0; i < languages.length; i += 2) {
+            counter++;
+            yaml.append(String.format("\n %s:\n  audio: %s\n  subtitle: %s", counter, languages[i], languages[i+1]));
+        }
+        return yaml.toString();
+    }
+
+    private static List<AttributeConfig> attrConf(String... languages) {
+        List<AttributeConfig> conf = new ArrayList<>();
+        for (int i = 0; i < languages.length; i += 2) {
+            conf.add(new AttributeConfig(languages[i], languages[i+1]));
+        }
+        return conf;
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/BooleanValidatorTest.java

@@ -0,0 +1,58 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.TestUtil.yamlList;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class BooleanValidatorTest {
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(SAFE_MODE, SAFE_MODE.abrv(), SAFE_MODE.args()));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                Arguments.of(SAFE_MODE, false, "", new String[]{"-safe-mode"}, VALID),
+                Arguments.of(SAFE_MODE, true, "", new String[]{"-safe-mode"}, VALID),
+                Arguments.of(SAFE_MODE, false, "", new String[]{""}, NOT_PRESENT),
+                Arguments.of(SAFE_MODE, true, "", new String[]{""}, MISSING),
+                Arguments.of(SAFE_MODE, false, yamlList(ARGUMENTS, SAFE_MODE), new String[]{""}, VALID),
+                Arguments.of(SAFE_MODE, true, yamlList(ARGUMENTS, SAFE_MODE), new String[]{""}, VALID),
+                Arguments.of(SAFE_MODE, false, yamlList(ARGUMENTS, WINDOWS), new String[]{""}, NOT_PRESENT),
+                Arguments.of(SAFE_MODE, true, yamlList(ARGUMENTS, WINDOWS), new String[]{""}, MISSING)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult) throws ParseException, YamlInvalidContentException {
+        BooleanValidator underTest = new BooleanValidator(property, required);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/ConfigPathValidatorTest.java

@@ -0,0 +1,57 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.INVALID;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.CONFIG_PATH;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static org.junit.jupiter.api.Assertions.*;
+
+class ConfigPathValidatorTest {
+    private static final String TEST_FILE = "src/test/resources/test-dir/test-file.mkv";
+    private static final String TEST_CONFIG = "src/test/resources/test-dir/test-config.yaml";
+
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(CONFIG_PATH, CONFIG_PATH.abrv(), CONFIG_PATH.args()));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                Arguments.of(CONFIG_PATH, true, "", new String[]{"-p", TEST_CONFIG}, VALID),
+                Arguments.of(CONFIG_PATH, true, "config-path: " + TEST_CONFIG, new String[]{}, MISSING),
+                Arguments.of(CONFIG_PATH, false, "config-path: " + TEST_CONFIG, new String[]{}, NOT_PRESENT),
+                Arguments.of(CONFIG_PATH, true, "", new String[]{"-p", TEST_FILE}, INVALID)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult) throws ParseException, YamlInvalidContentException {
+        ConfigPathValidator underTest = new ConfigPathValidator(property, required);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/MkvToolNixPathValidatorTest.java

@@ -0,0 +1,65 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.io.File;
+import java.nio.file.Path;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.MISSING;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static org.junit.jupiter.api.Assertions.*;
+
+class MkvToolNixPathValidatorTest {
+    private static final String TEST_INVALID_DIR = "src/test/resources/test-dir";
+    private static final String TEST_MKVTOOLNIX_DIR = "src/test/resources/mkvtoolnix";
+    private static final String TEST_MKVTOOLNIX_EXE_DIR = "src/test/resources/mkvtoolnix_exe";
+
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(MKV_TOOL_NIX, MKV_TOOL_NIX.abrv(), MKV_TOOL_NIX.args()));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                Arguments.of(MKV_TOOL_NIX, false, null, "", new String[]{"-m", TEST_MKVTOOLNIX_DIR}, VALID),
+                Arguments.of(MKV_TOOL_NIX, true, null, "", new String[]{"-m", TEST_MKVTOOLNIX_EXE_DIR}, VALID),
+                Arguments.of(MKV_TOOL_NIX, false, null, "mkvtoolnix: " + TEST_MKVTOOLNIX_EXE_DIR, new String[]{}, VALID),
+                Arguments.of(MKV_TOOL_NIX, true, null, "mkvtoolnix: " + TEST_MKVTOOLNIX_DIR, new String[]{}, VALID),
+                Arguments.of(MKV_TOOL_NIX, false, Path.of(TEST_MKVTOOLNIX_EXE_DIR).toFile(), "", new String[]{}, DEFAULT),
+                Arguments.of(MKV_TOOL_NIX, false, null, "", new String[]{}, NOT_PRESENT),
+                Arguments.of(MKV_TOOL_NIX, true, null, "", new String[]{}, MISSING),
+                Arguments.of(MKV_TOOL_NIX, true, null, "", new String[]{"-m", TEST_INVALID_DIR}, INVALID)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, File defaultValue, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult) throws ParseException, YamlInvalidContentException {
+        MkvToolNixPathValidator underTest = new MkvToolNixPathValidator(property, required, defaultValue);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+    }
+
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/PathValidatorTest.java

@@ -0,0 +1,66 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.io.File;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.INVALID;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.LIBRARY;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.TestUtil.argumentsOf;
+import static org.junit.jupiter.api.Assertions.*;
+
+class PathValidatorTest {
+    private static final String TEST_DIR = "src/test/resources/test-dir";
+    private static final String TEST_FILE = "src/test/resources/test-dir/test-file.mkv";
+
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(LIBRARY, LIBRARY.abrv(), LIBRARY.args()));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                argumentsOf(LIBRARY, false, null, "library-path: " + TEST_DIR, new String[]{}, VALID),
+                argumentsOf(LIBRARY, true, null, "", new String[]{"-l", TEST_FILE}, VALID),
+
+                argumentsOf(LIBRARY, false, TEST_DIR, "", new String[]{}, DEFAULT),
+                argumentsOf(LIBRARY, true, TEST_FILE, "", new String[]{}, DEFAULT),
+                argumentsOf(LIBRARY, true, null, "", new String[]{}, MISSING),
+                argumentsOf(LIBRARY, false, null, "", new String[]{}, NOT_PRESENT),
+
+                argumentsOf(LIBRARY, true, null, "", new String[]{"-l", TEST_DIR + "/invalid"}, INVALID),
+                argumentsOf(LIBRARY, false, null, "library-path: " + TEST_DIR + "/invalid", new String[]{}, INVALID),
+                argumentsOf(LIBRARY, true, TEST_DIR, "", new String[]{"-l", TEST_DIR + "/invalid"}, INVALID)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, File defaultValue, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult) throws ParseException, YamlInvalidContentException {
+        PathValidator underTest = new PathValidator(property, required, defaultValue);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/PatternValidatorTest.java

@@ -0,0 +1,64 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.INVALID;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.INCLUDE_PATTERN;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.TestUtil.argumentsOf;
+import static org.junit.jupiter.api.Assertions.*;
+
+class PatternValidatorTest {
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(INCLUDE_PATTERN, INCLUDE_PATTERN.abrv(), INCLUDE_PATTERN.args()));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                argumentsOf(INCLUDE_PATTERN, false, null, "include-pattern: \"[abd]?.*\"", new String[]{}, VALID),
+                argumentsOf(INCLUDE_PATTERN, true, null, "", new String[]{"-i", "[abd]?.*"}, VALID),
+
+                argumentsOf(INCLUDE_PATTERN, false, Pattern.compile(".*"), "", new String[]{}, DEFAULT),
+                argumentsOf(INCLUDE_PATTERN, true, Pattern.compile(".*"), "", new String[]{}, DEFAULT),
+
+                argumentsOf(INCLUDE_PATTERN, true, null, "", new String[]{}, MISSING),
+                argumentsOf(INCLUDE_PATTERN, false, null, "", new String[]{}, NOT_PRESENT),
+
+                argumentsOf(INCLUDE_PATTERN, true, null, "", new String[]{"-i", "?."}, INVALID),
+                argumentsOf(INCLUDE_PATTERN, false, null, "include-pattern: \"[arst*\"", new String[]{}, INVALID),
+                argumentsOf(INCLUDE_PATTERN, true, Pattern.compile(".?"), "", new String[]{"-i", "?."}, INVALID)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, Pattern defaultValue, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult) throws ParseException, YamlInvalidContentException {
+        PatternValidator underTest = new PatternValidator(property, required, defaultValue);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/SetValidatorTest.java

@@ -0,0 +1,68 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.COMMENTARY_KEYWORDS;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.TestUtil.argumentsOf;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class SetValidatorTest {
+
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(COMMENTARY_KEYWORDS, COMMENTARY_KEYWORDS.abrv(), COMMENTARY_KEYWORDS.args()));
+    }
+
+    @BeforeEach
+    void beforeEach() {
+        Config.getInstance(true);
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                argumentsOf(COMMENTARY_KEYWORDS, true, true, "", new String[]{"-ck", "test"}, VALID, 3),
+                argumentsOf(COMMENTARY_KEYWORDS, true, false, COMMENTARY_KEYWORDS.prop() + ": [test]", new String[]{}, VALID, 1),
+                argumentsOf(COMMENTARY_KEYWORDS, true, false, COMMENTARY_KEYWORDS.prop() + ":\n - test\n - test2", new String[]{}, VALID, 2),
+                argumentsOf(COMMENTARY_KEYWORDS, false, true, COMMENTARY_KEYWORDS.prop() + ": [test]", new String[]{}, VALID, 3),
+                argumentsOf(COMMENTARY_KEYWORDS, false, false, "", new String[]{"-ck", "test"}, VALID, 1),
+                argumentsOf(COMMENTARY_KEYWORDS, true, true, COMMENTARY_KEYWORDS.prop() + ": [commentary]", new String[]{}, VALID, 2),
+
+                argumentsOf(COMMENTARY_KEYWORDS, true, true, "", new String[]{}, MISSING, 2),
+                argumentsOf(COMMENTARY_KEYWORDS, false, true, "", new String[]{}, NOT_PRESENT, 2)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, boolean append, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult, int expectedSize) throws ParseException, YamlInvalidContentException {
+        SetValidator underTest = new SetValidator(property, required, append);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+        assertEquals(expectedSize, Config.getInstance().getCommentaryKeywords().size());
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/validator/ThreadValidatorTest.java

@@ -0,0 +1,61 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.config.validator;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import at.pcgamingfreaks.yaml.YAML;
+import at.pcgamingfreaks.yaml.YamlInvalidContentException;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult.*;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty.THREADS;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.CommandLineOptionsUtil.optionOf;
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.TestUtil.argumentsOf;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class ThreadValidatorTest {
+
+    private static CommandLineParser parser;
+    private static Options options;
+
+    @BeforeAll
+    static void before() {
+        parser = new DefaultParser();
+        options = new Options();
+        options.addOption(optionOf(THREADS, "t", THREADS.args()));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+                argumentsOf(THREADS, false, null, "", new String[]{"-t", "10"}, VALID),
+                argumentsOf(THREADS, true, null, "", new String[]{"-t", "10"}, VALID),
+                argumentsOf(THREADS, false, null, "threads: 10", new String[]{}, VALID),
+                argumentsOf(THREADS, true, null, "threads: 10", new String[]{}, VALID),
+                argumentsOf(THREADS, false, 2, "", new String[]{}, DEFAULT),
+                argumentsOf(THREADS, true, null, "", new String[]{}, MISSING),
+                argumentsOf(THREADS, false, null, "", new String[]{}, NOT_PRESENT),
+                argumentsOf(THREADS, true, null, "", new String[]{"-t", "-1"}, INVALID),
+                argumentsOf(THREADS, true, null, "threads: 0", new String[]{}, INVALID),
+                argumentsOf(THREADS, true, 2, "", new String[]{"-t", "0"}, INVALID)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void validate(ConfigProperty property, boolean required, Integer defaultValue, String yamlArgs, String[] cmdArgs,
+                  ValidationResult expectedResult) throws ParseException, YamlInvalidContentException {
+        ThreadValidator underTest = new ThreadValidator(property, required, defaultValue);
+
+        ValidationResult result = underTest.validate(new YAML(yamlArgs), parser.parse(options, cmdArgs));
+
+        assertEquals(expectedResult, result);
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/SubtitleTrackComparatorTest.java

@@ -0,0 +1,46 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.LaneType;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class SubtitleTrackComparatorTest {
+    private static final SubtitleTrackComparator comparator = new SubtitleTrackComparator(new String[]{"unstyled"});
+
+    private static Stream<Arguments> compareArguments() {
+        return Stream.of(
+                Arguments.of(List.of(attr("unstyled sub", false), attr("styled sub", false)),
+                        List.of(attr("unstyled sub", false), attr("styled sub", false))),
+                Arguments.of(List.of(attr("styled sub", false), attr("unstyled sub", false)),
+                        List.of(attr("unstyled sub", false), attr("styled sub", false))),
+
+                Arguments.of(List.of(attr("unstyled sub", true), attr("styled sub", false)),
+                        List.of(attr("unstyled sub", true), attr("styled sub", false))),
+                Arguments.of(List.of(attr("styled sub", true), attr("unstyled sub", false)),
+                        List.of(attr("unstyled sub", false), attr("styled sub", true))),
+
+                Arguments.of(List.of(attr("unstyled sub", true), attr("unstyled sub", false)),
+                        List.of(attr("unstyled sub", true), attr("unstyled sub", false)))
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("compareArguments")
+    void compare(List<FileAttribute> input, List<FileAttribute> expected) {
+        List<FileAttribute> result = input.stream().sorted(comparator.reversed()).collect(Collectors.toList());
+
+        assertArrayEquals(expected.toArray(new FileAttribute[0]), result.toArray(new FileAttribute[0]));
+    }
+
+    private static FileAttribute attr(String trackName, boolean defaultTrack) {
+        return new FileAttribute(0, "", trackName, defaultTrack, false, LaneType.SUBTITLES);
+    }
+}

src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/TestUtil.java

@@ -0,0 +1,28 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
+import org.junit.jupiter.params.provider.Arguments;
+
+import java.util.Arrays;
+
+import static java.util.stream.Collectors.joining;
+
+public class TestUtil {
+    public static String yamlList(ConfigProperty main, ConfigProperty... child) {
+        return main.prop() + ":\n" + Arrays.stream(child)
+                .map(ConfigProperty::prop)
+                .collect(joining("\n", "  - ", ""));
+    }
+
+    public static <T> Arguments argumentsOf(ConfigProperty property, boolean required, T defaultValue, String yaml, String[] cmd,
+                                           ValidationResult result) {
+        return Arguments.of(property, required, defaultValue, yaml, cmd, result);
+    }
+
+    public static Arguments argumentsOf(ConfigProperty property, boolean required, boolean append, String yaml, String[] cmd,
+                                            ValidationResult result, int expectedSize) {
+        return Arguments.of(property, required, append, yaml, cmd, result, expectedSize);
+    }
+
+}