How to store variables in an HA automation? - automation

Question

Since I’m new to HA and also Jinja2 my thoughts on the following issue are based on how I would realise it with PHP.
I’d like to built an automation that controls an rgb bulb that reminds me on an open window after several timers have passed. Due to the fact that I don’t wanna set specific values for rgb and brightness these attributes are variables.
So the logic behind my intended automation should be:
retrieve current state and attributes of the lamp and store these information in an array to reset the lamp later on:
{{states('light.bulb‘)}}
{{state_attr('light.bulb‘,’brightness')}}
{{state_attr('light.lbulb‘,’rgb_color')}}
$initial_state = array()
$initial_state['state_on_off'] = {{states('light.bulb‘)}}
$initial_state['rgb'] = {{state_attr('light.lbulb‘,’rgb_color')}}
$initial_state['brightness'] = {{states('light.bulb‘)}}
some automation stuff like:
## trigger ###############################
trigger:
- platform: state
entity_id:
- binary_sensor.lumi_lumi_sensor_magnet_aq2_opening_2
to: "on"
for:
hours: 0
minutes: 10
seconds: 0
id: BA
#######################################
## actions ###############################
action:
- if:
- condition: trigger
id: BA
then:
- service: light.turn_on
data:
rgb_color:
## set fixed values
- 67
- 180
- 252
brightness_pct: 20
target:
entity_id: light.bulb
alias: 1st stage
…
some more actions and now set back to initial attributes
…
action:
- if:
- condition: trigger
id: BA
then:
- service:
## depending from the initial state #############
if ($initial_state['state_on_off'] == ’on’){
light.turn_on
} else {
light.turn_off
}
#######################################
data:
rgb_color:
## depending from the initial color #############
$initial_state['rgb']
#######################################
brightness_pct:
## depending from the initial color #############
$initial_state['brightness']
#######################################
target:
entity_id: light.bulb
alias: 3rd stage
Thanks in advance.