#!/bin/bash
#
#    Sound control script for xsane2speech - speech directly from xsane
#    Copyright (C) 2010, 2011, 2013, 2019 Heinrich Schwietering
# 
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

exec 2>>"${4}""${5}"

SOUND="${1}"
TXT_FILE="${2}"
FILE_OUT="${3}"
TEMP_DIR="${4}"
ERRORLOG="${5}"
SYNTH="${6}"
SYNSEL="${7}"
SEL="${8}"
MAINPROG="${9}"

endall(){
   $(killall -q -s SIGKILL "$SYNTH")
      { if [[ "$SYNTH" == "festival" ]] ; then
         $(killall -q -s SIGKILL "$SOUND")
         { if [[ "$SYNSEL" != "german" ]] ; then
            $(killall -q -s SIGKILL audsp)
            sleep 0.1
            $(killall -q -s SIGKILL "$SOUND")
         fi }
      fi }
   rm -f /tmp/paused.txt
   rm -f /tmp/audiofile_*
   rm -f /tmp/FestplayPID.txt
}

#delay until "$SOUND" is started
{ for i in {1..16}; do
   { if pidof "$SOUND" true; then
      break
   else
      echo "waiting for $SOUND" 1>&2
      sleep 0.5
   fi }
done }

while pidof "$SOUND" true
   do
   action=$(DISPLAY=:0.0 yad --title Wiedergabe --geometry -0-0 --button="Pause/Play":2 --button=Beenden:4 --button=Abbruch:8 )
   ret=$?

   { if [[ $ret -eq 2 ]]; then
      { if [[ "$SOUND" == "gnome-mplayer" ]]; then
         echo $(pgrep -n mplayer) > /tmp/FestplayPID.txt
      else
	 echo $(pgrep -n "$SOUND") > /tmp/FestplayPID.txt
      fi }
      PAPID=$(cat /tmp/FestplayPID.txt)
      echo "SEL: pid $PAPID" 1>&2
      { if [ -f /tmp/paused.txt ] ; then
        sleep 0.1
	$(kill -SIGCONT "$PAPID")  
	rm -f /tmp/paused.txt
	echo "SEL: utterance resumed" 1>&2
      else   
	$(kill -SIGSTOP "$PAPID") 
	echo "SEL: paused" > /tmp/paused.txt
	echo "SEL: utterance paused" 1>&2
      fi }
   elif [[ $ret -eq 4 ]] ; then
      endall
      echo "SEL: utterance canceled" 1>&2
      sleep 0.6
      $(killall -q -s SIGKILL "$SEL")
      break
   elif [[ $ret -eq 8 ]] ; then
      endall

      rm "$TXT_FILE" 1>&2
      rm "$FILE_OUT" 1>&2
      echo "SEL: abborted ~~~+++~~~~+++~~~" $(date +%c) 1>&2
      $(killall -q -s SIGKILL "$MAINPROG")
#      sleep 0.1
      $(killall -q -s SIGKILL yad)
      $(killall -q -s SIGKILL "$SEL")
      break
   fi }
done