inverter_tasmota_arbeitszimmer_off.sh
#!/bin/bash

#set Inverter/Tasmota IPs
IPINVERTER="192.168.178.55"
IPTASMOTA="192.168.178.61"

#get timestamp YYYY-MM-DD HH24:MI
TIMESTAMP=`date +'%Y-%m-%d %H:%M'`

START_VALUE="0"
STOP_VALUE="0"

#set & create log file with header if not exists
LOG_FILE=/home/pi/inverter_tasmota_arbeitszimmer.log
if [[ ! -f ${LOG_FILE} ]]
then
        echo "Timestamp;IP Inverter;PowerReal_P_Sum;IP Tasmota;Tasmota Power State;Start Value;Stop Value;Message;Loop T;Loop I" > ${LOG_FILE};
fi

#get PowerValue from Inverter API & format output, loop if tasmota is unreachable
LOOP_I=0
PowerReal_P_Sum=`curl -s http://${IPINVERTER}/solar_api/v1/GetMeterRealtimeData.cgi |grep -i "PowerReal_P_Sum" |tr -s " " |cut -d ":" -f2 |sed 's/,//g' |sed 's/^ //g'| cut -d $(locale decimal_point) -f1`
while [[ -z ${PowerReal_P_Sum} ]]
do
        if [[ ${LOOP_I} -eq 3 ]]
        then
		break;
        fi

        let LOOP_I++;
        sleep 10;
        PowerReal_P_Sum=`curl -s http://${IPINVERTER}/solar_api/v1/GetMeterRealtimeData.cgi |grep -i "PowerReal_P_Sum" |tr -s " " |cut -d ":" -f2 |sed 's/,//g' |sed 's/^ //g'| cut -d $(locale decimal_point) -f1`;
done

#get tasmota state & format output, loop if tasmota is unreachable
LOOP_T=0
TASMOTA_POWER_STATE=`curl -s http://${IPTASMOTA}/cm?cmnd=Power | sed 's/{//g' | sed 's/}//g' |sed 's/"//g' |cut -d ":" -f2`
while [[ -z ${TASMOTA_POWER_STATE} ]]
do
	if [[ ${LOOP_T} -eq 3 ]]
	then
		break;
	fi
	
	let LOOP_T++;
	sleep 10;
	TASMOTA_POWER_STATE=`curl -s http://${IPTASMOTA}/cm?cmnd=Power | sed 's/{//g' | sed 's/}//g' |sed 's/"//g' |cut -d ":" -f2`;
done

STATE="OFF"
MESSAGE="Tasmota, turn it final ${STATE}";
LOOP_T=0;
TASMOTA_SWITCH=`curl -s "http://${IPTASMOTA}/cm?cmnd=Power%20${STATE}"`;
while [[ -z ${TASMOTA_SWITCH} ]]
do
	if [[ ${LOOP_T} -eq 3 ]]
	then
		MESSAGE="No Connection to Tasmota when setting final Power State ${STATE}"
		echo "${TIMESTAMP};${IPINVERTER};${PowerReal_P_Sum};${IPTASMOTA};${TASMOTA_POWER_STATE};${START_VALUE};${STOP_VALUE};${MESSAGE};${LOOP_T};${LOOP_I}" >> ${LOG_FILE};
		exit 1;
	fi

	let LOOP_T++;
	sleep 10;
	TASMOTA_SWITCH=`curl -s "http://${IPTASMOTA}/cm?cmnd=Power%20${STATE}"`;
done

#write log
echo "${TIMESTAMP};${IPINVERTER};${PowerReal_P_Sum};${IPTASMOTA};${TASMOTA_POWER_STATE};${START_VALUE};${STOP_VALUE};${MESSAGE};${LOOP_T};${LOOP_I}" >> ${LOG_FILE}

exit 0