#!/bin/bash

# default = 4. 0 = highest quality.
VBR_QUALITY="-V4"
LAME_OPTS="--noreplaygain ${VBR_QUALITY} --add-id3v2 --pad-id3v2 \
  --ignore-tag-errors"

print_usage()
{
    echo "$(basename $0) -- Translates FLAC file to MP3."
    echo "Usage: $(basename $0) flac-file"
}

if [ $# = 0 ]; then
    print_usage
    exit 1
fi

a=${1}

# Checking if input file exist.
if [ ! -f $1 ]; then
    echo "$0: File $a not found."
    print_usage
    exit 1
fi

OUTF=`echo "$a" | sed s/\.flac$/.mp3/g`

ARTIST=`metaflac "$a" --show-tag=ARTIST | sed s/.*=//g`
TITLE=`metaflac "$a" --show-tag=TITLE | sed s/.*=//g`
ALBUM=`metaflac "$a" --show-tag=ALBUM | sed s/.*=//g`
GENRE=`metaflac "$a" --show-tag=GENRE | sed s/.*=//g`
TRACKNUMBER=`metaflac "$a" --show-tag=TRACKNUMBER | sed s/.*=//g`
DATE=`metaflac "$a" --show-tag=DATE | sed s/.*=//g`

flac -c -d "$a" | lame ${LAME_OPTS} \
    --tt "$TITLE" --tn "${TRACKNUMBER:-0}" --ta "$ARTIST" \
    --tl "$ALBUM" --ty "$DATE" --tg "${GENRE:-12}" \
    - "$OUTF"