#!/bin/bash

# By default, we operate in bracketed mode: initiate listening calls, play announcement and terminate them
# With -n, we do not do bracketing, you have to initiate and terminate listening calls yourself
# with ann_listen[_all].sh and ann_end[_all].sh. Useful if you want to combine playback and speech in
# one announcement (call 121 to speak without bracketing).

if [[ "$1" == -n ]]; then num=121; shift; else num=122; fi


playstring="silence/1"
i=0
for arg in "$@"; do
	if [[ "$arg" =~ ^silence ]]; then
		playitem="$arg"
	else
		ffmpeg -i "$arg" -ar 8000 -ac 1 -y /tmp/ann$i.wav
		playitem=/tmp/ann$i
	fi
	playstring="$playstring&$playitem"
	i=$((i+1))
done

fn=/var/spool/asterisk/tmp/ann_play.call
echo "
Channel: Local/$num@orgs
Application: Playback
Data: $playstring
" >$fn
mv $fn /var/spool/asterisk/outgoing/