#!/bin/bash
# This script (hereby licensed under LGPL-3.0) by  SL: Celeste Python  /  RL: Angela Kahealani
# 2012-01-20 23:16:54+00:00 angela@kahealani.com http://www.kahealani.com/kahealani/angela_kahealani.html
# collects from Second Life's public chatlog the ShoutCast streams selected for the SHOUTCAST2SL JUKEBOX in Second Life (TM)
# into a playlist for Real Life listening, and manages removal from the playlist of streams you later find undesirable.
# It first plays local files in ~/Music and allows their deletion if unwanted.

# Uncomment your favorite player:
	player="mplayer"
#	player="xine"

#
#	HELP
#
if [ "$1" = "-h" ]
then
	echo "$0 Usage:"
	echo "Changing   stations is as easy as typing:      'q<enter>'"
	echo "To purge a station from your playlist, type: 'qrm<enter>'"
	echo "To stop listening, type:                     'q^C>'"
	echo "To pause or resume listening, type:          ' '"
	exit 0
fi
if [ "$1" = "--help" ]
then
	echo "$0 Usage:"
	echo "Changing   stations is as easy as typing:      'q<enter>'"
	echo "To purge a station from your playlist, type: 'qrm<enter>'"
	echo "To stop listening, type:                     'q^C>'"
	echo "To pause or resume listening, type:          ' '"
	exit 0
fi

#
#	ESTABLISH EXECUTION ENVIRONMENT AND REQUIRED RESOURCES
#
if [ -d ~/chatlogs ]
then
	if [ -f ~/chatlogs/chat.txt ]
	then
		echo "Good:	I found your chatlog."
	else
		echo "I can not find your chatlog, so please:"
		echo "ln -s ~/.secondlife/avatar_name/ ~/chatlogs"
		echo "I do not presume which 'avatar name' you use."
		exit 1
	fi
else
	echo "I can not find your chatlogs, so please:"
	echo " ln -s ~/.secondlife/avatar_name/ ~/chatlogs"
	echo "I do not presume which 'avatar name' you use."
	exit 1
fi
if [ -d ~/Music ]
then
	if [ -d ~/Music/playlists ]
	then
		echo "Good:	playlists directory found."
	else
		mkdir -p ~/Music/playlists
		echo "Good:	playlists directory created."
	fi
else
	mkdir -p ~/Music/playlists
	echo "Good:	playlists directory created."
fi
cd ~/Music

#
#	1 Infinite Loop
#
while sleep 1;do	#loop forever, presuming concurrency with Second Life (TM)

#
#	PLAY LOCAL FILES FIRST
#
	for f in `find . -iname "*.ogg" -o -iname "*.mp3" | sort`;do
		echo "======= Begin: $f ======="
		"$player" "$f"
		echo "========= End: $f ======="
		echo -n "Disposition: ('rm' to remove/purge)?: "
		read a
		if [ "$a" = "rm" ]
		then
			rm "$f" && echo "$f PURGED." || echo "$f KEPT."
		else
			echo "$f KEPT."
		fi
	done

#
#	UPDATE STREAMS PLAYLIST FROM SECOND LIFE (TM) SHOUTCAST2SL JUKEBOX
#
	echo "Good:	Refreshing Playlist from Second Life (TM) Public Chatlog..."
	if [ -f		~/Music/playlists/Shoutcast2SL.pls ]
	then
		cp	~/Music/playlists/Shoutcast2SL.pls					/tmp/Shoutcast2SL.pls.$$
	else
		touch										/tmp/Shoutcast2SL.pls.$$
	fi
	grep "SHOUTCAST2SL JUKEBOX" ~/chatlogs/chat.txt | cut -c 64- | sort -u | grep http >> 	/tmp/Shoutcast2SL.pls.$$
	sort -u			      /tmp/Shoutcast2SL.pls.$$	>		   ~/Music/playlists/Shoutcast2SL.pls
	rm			      /tmp/Shoutcast2SL.pls.$$
	echo "Good:	Pruning the streams previously removed from the playlist:"
	if [ -f		~/Music/playlists/.Shoutcast2SL.pls ]
	then
		if [ -z ~/Music/playlists/.Shoutcast2SL.pls ]
		then
			echo "OK:	Empty Purge List."
		else
			echo -n "Good:	Processing Purge List"
			for u in `cat ~/Music/playlists/.Shoutcast2SL.pls`;do
				grep -v "$u" ~/Music/playlists/Shoutcast2SL.pls	>		/tmp/Shoutcast2SL.pls.$$
				mv			  /tmp/Shoutcast2SL.pls.$$ ~/Music/playlists/Shoutcast2SL.pls
				echo -n "."
			done
			echo ""
			echo "Good:	Processed  Purge List."
		fi
	else
		echo "OK:	NonExistant Purge List."
	fi

#
#	PLAY STREAMS FROM INTERNET LISTED IN PLAYIST
#
	for f in `cat ~/Music/playlists/Shoutcast2SL.pls`;do
		echo "======= Begin: $f ======="
		if [ -e `which "$player"` ]
		then
			"$player" "$f"
		else
			echo "Bad:	We need to install $player..."
			sudo apt-get install "$player"
			"$player" "$f"
		fi
		echo "========= End: $f ======="
		echo -n "Disposition: ('rm' to remove/purge)?: "
		read a
		if [ "$a" = "rm" ]
		then
			echo "$f" >> ~/Music/playlists/.Shoutcast2SL.pls
			echo "$f PURGED."
		else
			echo "$f KEPT."
		fi
	done
	echo ======= END OF PLAYLIST, READY TO START OVER =======
	echo -n "Re-En-Able Purged Channels ('yes' to reenable)?: "
	read a
	if [ "$a" = "yes" ]
	then
		cat	~/Music/playlists/.Shoutcast2SL.pls	>>	~/Music/playlists/Shoutcast2SL.pls
		rm	~/Music/playlists/.Shoutcast2SL.pls
		echo "Disposition: ALL CHANNELS ENABLED."
	else
		echo "Disposition: PURGE LIST KEPT."
	fi
	echo ======= 1 Infinite Loop =======
done