#!/usr/bin/env bash

declare -r				\
	DOCDIR=%DOCDIR%			\
	LIBDIR=%LIBDIR%			\
	SHAREDIR=%SHAREDIR%
declare -r				\
	exampleconf=$DOCDIR/example.cfg	\
	schema=$SHAREDIR/schema.sql	\
					\
	oldIFS="$IFS"

## Define exit codes
source "$SHAREDIR"/errorcodes

# config structures
declare -A			\
	destinationchannels	\
	destinationfat32compat	\
	destinationcopymime	\
	destinationformat	\
	destinationfrequency	\
	destinationid		\
	destinationloss		\
	destinationmaxbps	\
	destinationnormalize	\
	destinationpath		\
	destinationquality	\
	destinationrename	\
	destinationnoresample	\
	destinationrenamepath	\
	destinationskipmime	\
|| {
	echo "Check your Bash version. You need >= 4.0" >&2
	exit $EBASHVERS
}

LC_ALL=C

shopt -s extglob

for function in "$LIBDIR"/*/*
do
	source "$function"
done

if ! [[ -f "${XDG_CONFIG_HOME:-$HOME/.config}/AtOM/atom.cfg" ]]	\
&& [[ -f "$HOME/.atom/atom.cfg" ]]
then
	echo	"Configuration found in legacy location $HOME/.atom/atom.cfg."\
		"Migrating configuration and data to XDG standard"
	xdgMigrate
fi
cffile="${XDG_CONFIG_HOME:-$HOME/.config}/AtOM/atom.cfg"

while getopts 'fm:o:p:*:uD' opt
do
	case $opt in
		f)	mimetypes+=("audio/x-flac")
			bitrates+=("")
		;;
		m)	mimetypes+=("audio/mpeg")
			bitrates+=("$OPTARG")
		;;
		o)	mimetypes+=("application/ogg vorbis")
			bitrates+=("$OPTARG")
		;;
		p)	mimetypes+=("application/ogg opus")
			bitrates+=("$OPTARG")
		;;
		\*)	mimetypes+=("*")
			bitrates+=("$OPTARG")
		;;

		u)	update=1	;;
		D)	(( debug++ ))	;;
	esac
done

getConfig
sanityCheck
openDatabase

if (( update ))
then
	getFiles
	updateMimes
	updateTags
fi

echo '
	SELECT DISTINCT
			mime_type_actions.mime_text,
			tags.bitrate,
			source_files.filename
	FROM		source_files
	INNER JOIN	tags
		ON	source_files.id=tags.source_file
	INNER JOIN	mime_type_actions
		ON	mime_type_actions.id=source_files.mime_type
	WHERE		mime_type_actions.action=1
	AND (
' >&3

for indice in ${!mimetypes[@]}
do
	(( notfirst )) && echo OR >&3
	case ${mimetypes[indice]} in
		'audio/x-flac')
			echo 'mime_type_actions.mime_text="audio/x-flac"'>&3
		;;
		'*')
			echo '( (
			NOT mime_type_actions.mime_text="audio/x-flac"
			AND NOT mime_type_actions.mime_text="audio/mpeg"
			AND NOT
			mime_type_actions.mime_text="application/ogg vorbis"
			AND NOT
			mime_type_actions.mime_text="application/ogg opus"
			) AND tags.bitrate < '${bitrates[indice]}' )' >&3
		;;
		*)
			echo '(
			mime_type_actions.mime_text="'"${mimetypes[indice]}"'"
			AND tags.bitrate < '${bitrates[indice]}' )' >&3
		;;
	esac
	notfirst=1
done
echo ') ORDER BY bitrate;' >&3

echo 'SELECT "AtOM:NoMoreFiles";' >&3

read -u4 -d $'\0' line
until [[ $line == AtOM:NoMoreFiles ]]
do
	echo "${line//::AtOM:SQL:Sep::/$'\t'}"
	read -u4 -d $'\0' line
done

closeDatabase