#! /bin/bash
source_dir="/home/eldamar/video"

find $source_dir -type f -regex ".*/.*\.\(mov\|mpg\|mkv\|avi\|m2v\|wmv\|flv\|m2ts\|vob\)" | {
while read file
  do

  ext=${file##*.}
  filename=${file##*/}
  basename=${filename%.*}
  dirname=${file%/*}

  touch converted.txt; touch failed.txt

  if grep -Fxq "$filename" converted.txt
  then
    echo "$(tput setaf 2)$(tput bold)"$filename" is allready converted, ignore it :D$(tput sgr0)"
  else
    # Extract subtitles for mkv files
    if [ "$ext"=="mkv" ]; then
      # input.srt <- default subtitle
      # input.lang.srt <- other languages
      readarray mkvi < <(mkvinfo $file | grep "subtitles" -B3 -A20)
      i=0; for item in "${mkvi[@]}"; do
        let i++
        echo $t"_"$item

        tracknr=$(echo $item | awk '/Track number/ {print($5)}')
        if [[ $tracknr ]]; then
          # Do we have information for prev track?
          if [[ $tnr ]]; then
            # Do something to track information gathered
            echo "$(tput setaf 2)Hurray we have a subtitle for "$filename"!$(tput sgr0)"
            mkvextract tracks $file -c UTF8 $tnr:$dirname/$basename$sublang.srt
          fi
          # Store track nr
          tnr=$tracknr
        fi

        # Language
        sl=$(echo $item | awk '/Language/ {print($4)}')
        if [[ $sl ]]; then sublang="."$sl; fi

        # Done with the last track
        if [ $i -eq ${#mkvi[@]} ]; then
          echo "$(tput setaf 2)Hurray we have a subtitle for "$filename"!$(tput sgr0)"
          mkvextract tracks $file -c UTF8 $tnr:$dirname/$basename$sublang.srt
        fi
      done
    fi

    # Start converting!
    newfile="$dirname/$basename.mp4"
    avcmd="avconv -y -i $file -map 0:v -map 0:a -map -0:s -vcodec libx264 -acodec libfaac $newfile"
    echo "$(tput setaf 3)$avcmd$(tput setaf color)"
    success=1; $avcmd && success=0
    if [ $success -eq 0 ]; then
      echo "$(tput setaf 2)Hurray! done converting "$filename"$(tput sgr0)"
      echo $filename >> converted.txt

      newfile=$dirname/$basename.mp4
      oldsize=$(du -b ${$file} | sed 's/\([0-9]*\)\(.*\)/\1/')
      size=$(du -b ${newfile} | sed 's/\([0-9]*\)\(.*\)/\1/')
      savedspace=$oldsize-$size
      echo "Filesize "$oldsize" -> "$size
      echo "Saved space after converting is "$savedSpace

      #rm $file ## PROBABLY DO RM FROM converted.txt LIST LATER ON ;)
    else
      echo "$(tput setaf 1)Oh, crap!$(tput sgr0)"
      echo $filename >> failed.txt
      # Exit on failed attempt, helps debuging
      # exit;
    fi
  fi
  done;
}