Run a script to notify me on phone how long lights have been on

Configuration
1

I am not an expert at YAML and lots of examples I query don’t tell me whether their code is a sensor or an automation or a script so my querys have not shown me a solution.

I just want to run a script that tells me how long all the switches and lights (that are currently on) have been on for.

I did set up the History_Stats but that ends up giving me a bar chart and how long a light has been on every day for the past week.

What I want to know is if a light has been running for hours, then I can track down problems. I will just run the script and get a notification on my iphone what lights are currently on and how long they have been on.

Can anyone assist me?

2

This will tell you which lights and switches have been on for x hours:

script:
  switches_and_lights_on_for_x_hrs:
    alias: Switches and lights that have been on for x hours or more
    sequence:
      - action: notify.your_notification_service_here  # change this
        data:
          title: "💡 <b>Switches and lights on</b>"
          message: >
            The following lights have been on for 4 hours or more:
  
            {{ states.light
                | selectattr('last_changed', 'gt', now() - timedelta(hours=time_on))
                | map(attribute='name')
                | list
                | join(', ')
            }}

            The following switches have been on for 4 hours or more:
  
            {{ states.switch
                | selectattr('last_changed', 'gt', now() - timedelta(hours=time_on))
                | map(attribute='name')
                | list
                | join(', ')
            }}

You would use it like this:

actions: 
  - action: script.switches_and_lights_on_for_x_hrs
    data:
      time_on: 4 # change to the number of hours the light or switch must have been on for, at least, to be in the reply list.