#!/bin/bash

if [ $# -ne "1" ]
then
    echo "usage: decompressAudio.sh <outputDirectory>"
    exit 1
fi

if [ ! -d $1 ]
then
    echo "$1 is not a directory."
    exit 1
fi

for mp3file in *.[Mm][Pp]3
do
    if [ "$mp3file" != '*.[Mm][Pp]3' ]
    then
        outfile=$1/${mp3file%.??3}.wav
        if !([ -e "$outfile" ])
        then
            echo "*** Creating $outfile..."
            mpg123 -q -w "$outfile" "$mp3file"
        else
            echo "*** $outfile already exists."
        fi
    fi
done

# Decompress shn files
# --------------------

for shnfile in *.[Ss][Hh][Nn]
do
    if [ "$shnfile" != '*.[Ss][Hh][Nn]' ]
    then
        outfile=$1/${shnfile%.???}.wav
        if !([ -e "$outfile" ])
        then
            echo "*** Creating $outfile..."
            shorten -x "$shnfile" "$outfile"
        else
            echo "*** $outfile already exists."
        fi
    fi
done


# Decompress flac files
# --------------------

for flacfile in *.[Ff][Ll][Aa][Cc]
do
    if [ "$flacfile" != '*.[Ff][Ll][Aa][Cc]' ]
    then
        outfile=$1/${flacfile%.????}.wav
        if !([ -e "$outfile" ])
        then
            echo "*** Creating $outfile..."
            flac -d "$outfile" "$flacfile"
        else
            echo "*** $outfile already exists."
        fi
    fi
done

# Decompress ape files
# --------------------

for apefile in *.[Aa][Pp][Ee]
do
    if [ "$apefile" != '*.[Aa][Pp][Ee]' ]
    then
        outfile=$1/${apefile%.ape}.wav
        if !([ -e "$outfile" ])
        then
            echo "*** Creating $outfile..."
            wine /backup/winexe/MAC.exe "$apefile" "$outfile" -d
        else
            echo "*** $outfile already exists."
        fi
    fi
done