#!/bin/sh

## Includes.
. functmpGet
. functmpSet

## Set the track info as displayed in entTrackInfo.
## On entry: $1 = null to use the existing type,
##                0 for type Track (default),
##                1 for type Artist/aLbum or
##                2 for type inverse of the existing.

funcTrackInfoSet() {
	if [ -z "$BASH" ]; then local FUNCNAME=funcTrackInfoSet; fi
	if [ $DEBUG_TRANSITS -ne 0 ]; then echo "$FUNCNAME: IN"; fi

	## Local variables.
	local playlisttrack="`functmpGet playlisttrack`"
	local trackinfotype=`functmpGet trackinfotype`
	local arg1=$1
	local A L T f ifs

	if [ -z "$playlisttrack" ]; then
		functmpSet trackinfo "[empty]"
	else
		## Split the path using only builtins.
		ifs=$IFS
		IFS='/'
		for f in $playlisttrack; do
			A="$L"; L="$T"; T="$f"
		done
		IFS=$ifs

		## Are we using the existing type?
		if [ -z "$arg1" ]; then
			arg1=$trackinfotype
		## Are we toggling the type?
		elif [ $arg1 -eq 2 ]; then
			arg1=$((1 - $trackinfotype))
		fi

		## Prepare and set the string.
		if [ $arg1 -eq 0 ]; then
			functmpSet trackinfo "$T"
		else
			functmpSet trackinfo "$A/$L"
		fi

		## If not using the existing type then store the new one.
		if [ -n "$1" ]; then functmpSet trackinfotype $arg1; fi
	fi

	if [ $DEBUG_TRANSITS -ne 0 ]; then echo "$FUNCNAME: OUT"; fi
}