#!/bin/sh
#
#	time_announce v1.0 - A time announce
#	script for IRLP nodes.  Requires Festival
#	(a text-to-speech engine)
#
#	Written by Robert Pectol - kk7av
#	http://rob.pectol.com/irlp
#
#################################################

#################################
#   USER CONFIGURABLE SETTINGS  #
#################################

# AUX line PTT support
aux_line_ptt="no"
aux_line="1"

# report time in 12/24 hour time format
time_format="12"

###############################
#      END USER SETTINGS      #
###############################



####################################################
#  --->  NO NEED TO MODIFY BELOW THIS LINE!  <---  #
####################################################

# ensure script is run as repeater user
if [ `/usr/bin/whoami` != "repeater" ] ; then
	exit 1
fi

# ensure the environment file has been sourced
if [ "$RUN_ENV" != "TRUE" ] ; then
	. /home/irlp/custom/environment
fi

# exit silently if there is a QSO in progress
if ! $BIN/pttstate; then
	exit 0
fi
if ! $BIN/cosstate; then
	exit 0
fi

# en/disables time announcements
if [ -f ~/.time_announce ]; then
	echo "Time announcements disabled! (remove ~/.time_announce to enable them)"
	exit 0
fi

# for AUX line PTT support
if [ "$aux_line_ptt" == "yes" ]; then
	tx_key=`echo "$BIN/aux$aux_line""on"`
	tx_unkey=`echo "$BIN/aux$aux_line""off"`
else
	tx_key=`echo "$BIN/key"`
	tx_unkey=`echo "$BIN/unkey"`
fi

# set some script variables
timestamp=`date`
curhour_24=`date +%k`
curhour_12=`date +%l`
curminute=`date +%M`
curday=`date +%u`

if [ "$time_format" = "12" ]; then
	curhour=$curhour_12
else
	curhour=$curhour_24
fi

if [ "$curminute" == "00" ]; then
	curminute="o clock"
fi

case $curminute in
	01) curminute="oh, one" ;;
	02) curminute="oh, two" ;;
	03) curminute="oh, three" ;;
	04) curminute="oh, four" ;;
	05) curminute="oh, five" ;;
	06) curminute="oh, six" ;;
	07) curminute="oh, seven" ;;
	08) curminute="oh, eight" ;;
	09) curminute="oh, nine" ;;
esac

case $curday in
	1) curday="monday" ;;
	2) curday="tuesday" ;;
	3) curday="wednesday" ;;
	4) curday="thursday" ;;
	5) curday="friday" ;;
	6) curday="saturday" ;;
	7) curday="sunday" ;;
	*) curday="I do not know what day it is." ;;
esac

# decide AM or PM based on the hour
if [ "$curhour_24" -gt "11" ]; then
	speak_ampm="P,M"
else
	speak_ampm="A,M"
fi

# decide if it's morning, afternoon, or evening
if [ "$curhour_24" -lt "12" ]; then
	speak_greeting="morning"
elif [ "$curhour_24" -gt "17" ]; then
	speak_greeting="evening"
else
	speak_greeting="afternoon"
fi

# build the announcement
if [ "$time_format" = "12" ]; then
	announce="Good $speak_greeting, the time is, $curhour, $curminute, $speak_ampm"
else
	announce="Good $speak_greeting, the time is, $curhour, $curminute"
fi

# key up the node
$tx_key
usleep 500000

# announce the time
echo $announce | festival --tts

# un-key the node
$tx_unkey

# show time on stdout
echo $timestamp
exit 0