#!/bin/sh

ROOTER=/usr/lib/rooter

log() {
	logger -t "sms process" "$@"
}

CURRMODEM=$1

log "SMS Supported Modem$CURRMODEM"

COMMPORT="/dev/ttyUSB"$(uci get modem.modem$CURRMODEM.commport)

LOCKDIR="/tmp/smslock$CURRMODEM"
PIDFILE="${LOCKDIR}/PID"
rm -rf "${LOCKDIR}"

idV=$(uci -q get modem.modem$CURRMODEM.idV)
idP=$(uci -q get modem.modem$CURRMODEM.idP)
MODEMID="$idV${idP:0:3}"

ATCMDD="AT+CMGF=0"
OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
sleep 1
ATCMDD="AT+CPMS=\"SM\",\"SM\",\"SM\""
OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
MAXED=$(echo "$OX" | cut -d, -f2 | grep -o "[0-9]\{1,3\}")
if [ "$MAXED" == "0" -a "$MODEMID" != "119968a" ]; then
	ATCMDD="AT+CPMS=\"ME\",\"ME\",\"ME\""
	OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
	uci set modem.modem$CURRMODEM.smsloc="ME"
	SMSLOC="ME"
	MEM3="ME"
else
	uci set modem.modem$CURRMODEM.smsloc="SM"
	SMSLOC="SM"
	MEM3="SM"
fi
sleep 1
uci set modem.modem$CURRMODEM.smsnum=999
uci commit modem
ATCMDD="AT+CPMS=\"ME\""
OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
MESC=$(echo "$OX" | grep -o "+CPMS:.*" | awk -F, '{print $1}' | grep -o "[0-9]\{1,3\}")
METC=$(echo "$OX" | grep -o "+CPMS:.*" | awk -F, '{print $2}' | grep -o "[0-9]\{1,3\}")
MESLOT="0"
MESCc=""
if [ "x$MESC" = "x" ]; then
	MESC="0"
fi
if [ "x$METC" = "x" ]; then
	METC="0"
	MESC="0"
	SMSLOC="SM"
fi
uci set modem.sms.slots=$MESC
uci commit modem
sleep 1

rm -f /tmp/smsresult$CURRMODEM".at"
> /tmp/smsslots$CURRMODEM
HH=$(date +%H)

while true; do
	SLEEP="20"
	while true; do
		if mkdir "${LOCKDIR}" &>/dev/null; then
			echo "$$" > "${PIDFILE}"
			if [ "$METC" != "0" ]; then
				ATCMDD="AT+CPMS=\"ME\",\"$SMSLOC\",\"$MEM3\""
				SX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
				USED=$(echo "$SX" | cut -d, -f1 | grep -o "[0-9]\{1,3\}")
				MESCc="$USED"
				MAXED=$(echo "$SX" | cut -d, -f2 | grep -o "[0-9]\{1,3\}")
			fi
			if [ $SMSLOC == "SM" ]; then
				ATCMDD="AT+CPMS=\"SM\",\"$SMSLOC\",\"$MEM3\""
				SX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
				USED=$(echo "$SX" | cut -d, -f1 | grep -o "[0-9]\{1,3\}")
				MAXED=$(echo "$SX" | cut -d, -f2 | grep -o "[0-9]\{1,3\}")
				if [ -n "$MESCc" -a "$MESCc" != "$MESC" ]; then
					MESC=$MESCc
					uci set modem.sms.slots=$MESC
					uci commit modem
				fi
				if [ $USED == $MAXED -a $MEM3 == "SM" ]; then
					ATCMDD="AT+CPMS=\"SM\",\"SM\",\"ME\""
					OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
					MEM3="ME"
				else
					if [ $USED != $MAXED -a $MEM3 == "ME" ]; then
						ATCMDD="AT+CPMS=\"SM\",\"SM\",\"SM\""
						OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
						MEM3="SM"
					fi
				fi
			fi
			if [ $MAXED -eq 0 ]; then
				SLEEP="900"
			fi
			if [ $USED -eq $(uci get modem.modem$CURRMODEM.smsnum) ] && [ $HH -eq $(date +%H) ]; then
				if [ $MEM3 == "SM" -a $USED -lt $MAXED -a $MESC -gt 0 -a $(uci -q get modem.sms.menable) == 1 ]; then
					ATCMDD="AT+CPMS=\"ME\";+CMGR=$MESLOT;+CPMS=\"SM\""
					OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
					Rstat=$(echo "$OX" | grep -o "+CMGR:[^,]\+" | grep -o "[0-3]")
					PDU=$(echo "$OX" | grep -o "[0-9A-F]\{30,\}")
					PDUL=$(echo "$OX" | grep -o "+CMGR:.*" | grep -o ",[0-9]\{1,\}" | grep -o "[0-9]\{1,3\}")
					if [ -n "$PDU" -a -n "$PDUL" -a -n "$Rstat" ]; then
						if [ ${#PDUL} -eq 2 ]; then
							PDUL="0$PDUL"
						fi
						ATCMDD="$PDUL,SM,$Rstat,$PDU"
						OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "smswrite.gcom" "$CURRMODEM" "$ATCMDD")
						MREF=$(echo "$OX" | grep -o "[0-9]\{1,3\}")
						if [ ${#MREF} -gt 0 ]; then
							echo "$MREF" >> /tmp/smsslots$CURRMODEM
							ATCMDD="AT+CPMS=\"ME\";+CMGD=$MESLOT;+CPMS=\"SM\""
							OX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
						fi
						MESC=$(($MESC - 1))
						uci set modem.sms.slots=$MESC
						uci commit modem
						SLEEP="5"
					fi
					MESLOT=$(($MESLOT + 1))
					if [ $MESLOT -gt $METC -o $MESC == "0" ]; then
						MESLOT="0"
					fi
				fi
			else
				log "Reread SMS Messages on Modem $CURRMODEM"
				echo "$SX" > /tmp/smstemp$CURRMODEM
				ATCMDD="AT+CMGL=4"
				SX=$($ROOTER/gcom/gcom-locked "$COMMPORT" "run-at.gcom" "$CURRMODEM" "$ATCMDD")
				SX=$(echo "$SX" | sed -e "s/+CMGL:/+CMGL: /g")
				echo "$SX" >> /tmp/smstemp$CURRMODEM
				uci set modem.modem$CURRMODEM.smsnum=$USED
				uci commit modem
				mv /tmp/smstemp$CURRMODEM /tmp/smsresult$CURRMODEM.at
				lua /usr/lib/sms/smsread.lua $CURRMODEM
				HH=$(date +%H)
				SLEEP="5"
			fi
			break
		else
			OTHERPID="$(cat "${PIDFILE}")"
			if [ $? = 0 ]; then
				if ! kill -0 $OTHERPID &>/dev/null; then
 					rm -rf "${LOCKDIR}"
				fi
			fi
			sleep 1
		fi
	done
	rm -rf "${LOCKDIR}"
	n=1
	until [ $n -ge $SLEEP ]
	do
		sleep 1
		if [ -e /tmp/smswakeup$CURRMODEM ]; then
			rm /tmp/smswakeup$CURRMODEM
			n=$(( $n + $SLEEP ))
		else
			n=$(( $n + 1 ))
		fi
	done
done