#!/usr/bin/env sh
set -oux pipefail

# removes more modern codecs to just files that can fit on my mp3 player

count=`ls -1 *.M4A 2>/dev/null | wc -l`
if [ $count != 0 ]; then
  rename M4A m4a *.M4A
fi
  
count=`ls -1 *.m4a 2>/dev/null | wc -l`
if [ $count != 0 ]; then
    for i in *.m4a; do
        ffmpeg -i "$i" "${i%.*}.ogg" && rm "$i"
    done
fi

count=`ls -1 *.WEBM 2>/dev/null | wc -l`
if [ $count != 0 ]; then
  rename WEBM webm *.WEBM
fi
  
count=`ls -1 *.webm 2>/dev/null | wc -l`
if [ $count != 0 ]; then
    for i in *.webm; do
        ffmpeg -i "$i" "${i%.*}.ogg" && rm "$i"
    done
fi

count=`ls -1 *.OPUS 2>/dev/null | wc -l`
if [ $count != 0 ]; then
  rename OPUS opus *.OPUS
fi
  
count=`ls -1 *.opus 2>/dev/null | wc -l`
if [ $count != 0 ]; then
    for i in *.opus; do
        ffmpeg -i "$i" "${i%.*}.ogg" && rm "$i"
    done
fi