% Config params, overwrite any previous settings from the commandline
config ap_ssid 		MQTTbroker
config ap_password	stupidPassword
config ntp_server	1.de.pool.ntp.org
config broker_user	Martin
config broker_password	secret
config mqtt_host	martinshome.fritz.box
config speed		160

% Now the initialization, this is done once after booting
on init
do
	% Device number ("* 1" to make even "" a number)
	setvar $device_number = @1 * 1

	% @<num> vars are stored in flash and are persistent even after reboot 
	setvar $run = @2 + 1
	setvar @2 = $run
	println "This is reboot no "|$run

	% Status of the relay
	setvar $relay_status=0
	gpio_out 12 $relay_status
	gpio_out 13 not ($relay_status)

	% Blink flag
	setvar $blink=0

	% Command topic
	setvar $command_topic="/martinshome/switch/" | $device_number | "/command"

	% Status topic
	setvar $status_topic="/martinshome/switch/" | $device_number | "/status"

	publish local $status_topic $relay_status retained

	% local subscriptions once in 'init'
	subscribe local $command_topic

% Now the MQTT client init, this is done each time the client connects
on mqttconnect
do
	% remote subscriptions for each connection in 'mqttconnect'
	subscribe remote $command_topic

	publish remote $status_topic $relay_status retained

% Now the events, checked whenever something happens

% Is there a remote command?
on topic remote $command_topic
do
	println "Received remote command: " | $this_data

	% republish this locally - this does the action
	publish local $command_topic $this_data


% Is there a local command?
on topic local $command_topic
do
	println "Received local command: " | $this_data

	if $this_data = "on" then
		setvar $relay_status = 1
		setvar $blink = 0
		gpio_out 12 $relay_status
		gpio_out 13 not ($relay_status)
	else
	    if $this_data = "off" then
		setvar $relay_status = 0
		setvar $blink = 0
		gpio_out 12 $relay_status
		gpio_out 13 not ($relay_status)
	    endif
	endif
	if $this_data = "toggle" then
		setvar $relay_status = not ($relay_status)
		gpio_out 12 $relay_status
		gpio_out 13 not ($relay_status)
	endif
	if $this_data = "blink" then
		setvar $blink = 1
		settimer 1 500
	endif

	publish local $status_topic $relay_status retained
	publish remote $status_topic $relay_status retained


% The local pushbutton
on gpio_interrupt 0 pullup
do
	println "New state GPIO 0: " | $this_gpio
	if $this_gpio = 0 then
		setvar $blink = 0
		publish local $command_topic "toggle"
	endif


% Blinking
on timer 1
do
	if $blink = 1 then
		publish local $command_topic "toggle"
		settimer 1 500
	endif