#!/bin/bash

cd "$(dirname "$0")"
line="$1"
snd="$2"
. config.txt

./ann_end.sh "$line" # and any existing calls to prevent our call ending up in "call waiting" state (and thus not autoanswered)
sleep 0.5
./autoanswer_line.sh "$line" 1 || { echo >&2 "failed to enable autoanswer, exiting.";  exit 1; }

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${line}_$i.wav
		playitem=/tmp/ann${line}_$i
	fi
	playstring="$playstring&$playitem"
	i=$((i+1))
done

fn=/var/spool/asterisk/tmp/ann_$line.call
echo "
Channel: PJSIP/emerg$line
Application: Playback
Data: $playstring
Priority: 1
" >$fn

mv "$fn" /var/spool/asterisk/outgoing/

./ann_volup.sh "$line" &