@echo off

:: Fullpath current folder : %cd%
:: Fullpath folder where the right click was made : %~f1
:: Name of the folder where the right click was made : for %%f in ("%~f1") do set Name=%%~nxf

for %%f in ("%~f1") do set Name=%%~nxf

:: Step 1: Creating a temporary folder
mkdir "%~f1-Temp"

:: Step 2: Creation of all nfo txt files in the temporary folder
FOR /F "tokens=*" %%G IN ('dir "%~f1" /b *.mkv') DO (
   call "C:\Users\me\Desktop\MediaInfo\MediaInfo.exe" "%~f1\%%G" > "%~f1-Temp\%%~nG.txt"
)

:: Step 3: Filling in the final nfo
setlocal enabledelayedexpansion
set i=0

FOR /F "tokens=*" %%G IN ('dir "%~f1" /b *.mkv') DO (
   IF !i! == 1 (
     echo ------------------------------------------------------------------------------------------------------------------------------------ >> "%~f1-Temp\%Name%.txt"
     echo. >> "%~f1-Temp\%Name%.txt"
     echo. >> "%~f1-Temp\%Name%.txt"
  )
   cat "%~f1-Temp\%%~nG.txt" >> "%~f1-Temp\%Name%.txt"
   set i=1
)
endlocal

:: Step 4: Removing the path
setlocal
set $source="%~f1-Temp\%Name%.txt"
set $dest="%~f1-Temp\%Name%1.txt"
set "search=%~f1\\"

for /f "delims=" %%a in ('powershell -c "(get-content '%$source%') | foreach-object {$_ -replace '(?<=Complete name\s+:\s+).+\\'} | set-content '%$dest%'"') do echo %%a
endlocal

:: Step 5: Renaming the nfo and moving to the right place
Ren "%~f1-Temp\%Name%1.txt" "%Name%.nfo"
move "%~f1-Temp\%Name%.nfo" "%~f1"

:: Step 6: Deleting temporary files
rmdir /s /q "%~f1-Temp"

pause