IF and ELSE syntax for 2 way lighting script

@Crumpy10 wrote:

Hello everyone, I am a little bit stuck on some basics. Go easy on me, I am not a code guru and learning this stuff comes very hard to me!
So I have a system that I am trying to convert over from OpenHab to HA. I am stuck on a rule which I believe should be a script in HA?
At the moment I am trying to figure out a switching script that when I ask Alexa to turn the office lights on the system decides to switch a relay in a sonoff on or off to complete the task.
My lights are wired like a 2 way lighting circuit with conventional switch at one end and a Sonoff 4 channel SPDT relay at the other.

I have looked through the docs and the Jinja docs to try and figure out the conversion of my original working code in Openhab to a script in HA.
Here is my original working code in OH-:

rule "Sonoff4ch_1Channel1 Toggle"
when
   Item Sonoff4ch_1Channel1 received command
then
   if (receivedCommand != Sonoff4ch_1Channel1.state) { 
          // only if new request does not match actual current state
          // then we need to toggle the relay state
      if (Sonoff_relay1.state == OFF) {
         Sonoff_relay1.sendCommand(ON)
      } else {
         Sonoff_relay1.sendCommand(OFF)
      }
   }  // else already in requested state
end

and here is my effort to convert it…

#Sonoff 4 channel Alexa 2way lighting toggle script file
script:
  control_lights_toggling:
    sequence:
      # This is Home Assistant Script Syntax
      - {% if input_boolean.2way_toggle != binary_sensor.office_lights %} # Only continue if new request does not match physical state of light
	  
		{% if office_lights == off %} # Now we need to toggle the relay state
		service: light.turn_on
		entity_id: light.office_lights
		
		{% else %}
    service: light.turn_off
		entity_id: light.office_lights

When I try to place the script in HA the configurator throws me this error-:

missed comma between flow collection entries at line 16, column 6:
      - {% if input_boolean.2way_toggle ! ... 
         ^

Would someone mind pointing out a way forward? I have looked and dont understand what comma is missing, I have looked at loads of examples and cant figure it out…

Cheers

Simon

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