#!/bin/bash
# set -x
# $1 action $2=channel, $3=start time, $4=end time $5 additional options to 'at'
# ln -s dvbradiorecord dvbtvrecord


# simple script to record dvb radio live

# hacked yet again for dvb

#TODO: ?Use replex. use new tzap
#TODO: implement function for checking .tzap/channels.conf ?return correct channel?
#TODO: autocheck .tzap/channels.conf for radio/tv


#HACK!!
cd $HOME

TZAP="/home/nyk/dvbutils/tzap"    #use local build
RDIRECTORY="/srv/temp/"
TS2ES="/home/nyk/dvbutils/ts2es"
FILENAME="$RDIRECTORY$(echo $2|tr [:blank:] _)_$(date +%Y%m%d_%H:%M)"
MPLAYER="mplayer -vo x11"	#eg "sudo mplayer" for vesa
MPLAYERARGS="-autosync 30"
MPLAYERXARGS="" #" -xy 0.5" #ickle window...

case "$1" in

	timer)
		#ultra-simple timer function
		
		# check channel
		if ! grep "^$2:" $HOME/.tzap/channels.conf >/dev/null ; then
			echo "Could not find channel $2"
			exit 1
		fi
		      
		
		echo "$0 start \"${2}\""|at $3 $5
		echo "$0 stop"|at $4 $5
		atq
		exit 0
	;;
	listen|watch)
		if ! grep "^$2:" $HOME/.tzap/channels.conf >/dev/null ; then
			echo "Could not find channel $2"
			exit 1
		fi
		
		# Kill any current users of the frontend
		$0 stop	#just call ourself recursively
		
		#check console or X and set sound accordingly
		if [ "$TERM" = "LINUX" ] || [ "$TERM" = "linux" ] ; then
			MPLAYERARGS="$MPLAYERARGS $MPLAYERCONSOLEARGS"
		else
			MPLAYERARGS="$MPLAYERARGS $MPLAYERXARGS"
		fi

		#FIXME--- hack - mplayer doesn't tune quite right...
		$TZAP -t 1 "${2}"
	
	case $0 in
		*dvbtvrecord)
		$MPLAYER $MPLAYERARGS -cache 4096 dvb://"${2}" 
		;;
		*dvbradiorecord)
		$MPLAYER $MPLAYERARGS -cache 256 -novideo dvb://"${2}"
		;;
	esac
	
	;;

	start)
		# check channel
		if ! grep "^$2:" $HOME/.tzap/channels.conf > /dev/null 2>&1; then
			echo "Could not find channel $2"
			exit 1
		fi
		
		# Kill any current users of the frontend
		$0 stop	#just call ourself recursively
		
		case "$0" in
			*dvbtvrecord) ############### TV ##################
			
			#tzap -r "${2}" >/dev/null &
			#cat /dev/dvb/adapter0/dvr0 >"${FILENAME}.mpg"& #records the whole ts

			# new tzap - it's still easier to use `at` than -t (timeout):
			$TZAP -S -o "${FILENAME}.mpg" "${2}" &			

			
			#####################################################################
			;;
			
			*dvbradiorecord) ########### RADIO ################
			# ATM still easier to do this than arse about with tzap -o
			
			APID=$(grep "^$2" .tzap/channels.conf|awk ' BEGIN { FS=":" }
			{
				print $12
			}')
			
			$TZAP -S -r "${2}" &
			$TS2ES /dev/dvb/adapter0/dvr0 $APID  >"${FILENAME}.mp2"&
			
			#####################################################################
			;;
		esac


	
	;;

	stop)
	# this is a bit of a hack, but I've only got one dvb, so it should work

	fuser -k /dev/dvb/adapter0/*

	;;

	*)
		echo "$0 start channel|stop|listen channel|timer channel start stop [day]"
	;;
esac