Setting Alarmtime external

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Hi,
im new to Pimatic and im trying to set an Alarmtime externaly.

I just found out how to use api to set Variable via curl.
example:
curl -X PATCH --header “Content-Type:application/json” --data ‘{“type”: “value”, “valueOrExpression”: “Mo 7:45”}’ --user “admin:pass” http://10.15.23.81:800/api/variables/testvar

I also got success on setting a rule based on this variable:
if its $testvar then switch RFSwitch1 on

This works well, if there is an alarmtime… but it generates an error, if the alarmtime is set to anything else then an alarmtime…
error [pimatic]: Error on evaluation of rule condition of rule rule1: " " is not a valid date or time.

in my szenario i am using a cron-script every 5 seconds (by using the app “cron4phone”) on my android phone to get the next set alarmtime… and send it via curl to my pimatic…
looks like this:
r=$(eval sqlite3 -column /data/data/com.android.providers.settings/databases/settings.db ‘select value from system where name = “next_alarm_formatted”’) ; curl -X PATCH --header “Content-Type:application/json” --data ‘{“type”: “value”, “valueOrExpression”: "’"$r"’"}’ --user “admin:pass” http://10.15.23.81:800/api/variables/testvar

Problem: if there is no alarmtime on the android device set… this little codeline sets the value of the pimatic variable to " ". which is not a valid date or time.

now im stuck on ideas how to solve this

I think you should use 2 variables. One for the state of the alarm and one for the time.

hmm… how to check the state? currently im just able to send the value…
if there is no Day + Time, then there is no alarmtime set…

well… i could use my own php script externaly on the pimatic computer, to generate usable vriables… but i would prefer a solution based only on pimatic and the pimatic rules system…

EDIT:
nevermind… it seems i got it…

the android device sets the variable “$getalarm” to " " or an alarmtime…

three rules… with three variables…
if $getalarm is " " then $alarmstate = 0
if $getalarm is not " " then $alarmstate = 1 and $alarmtime = $getalarm
if $alarmstate = 1 and it is $alarmtime then switch RFSwitch1 on

EDIT 2
im wrong… there has to be also a check if the variable got updated… but i get a problem on cascading conditions…
this works: if $getalarm is not " " then $alarmstate = 1 and $alarmtime = $getalarm
this not: if $getalarm gets updated and $getalarm is not " " then $alarmstate = 1 and $alarmtime = $getalarm

Alarm time should never set to an empty string. How you send the time to pimatic? And why do you want to change the time?

im sending the alarmtime to pimatic only by setting a variable on pimatic… and this happens every 5 seconds
pimatic gets the state of the alarm by writing the variable $getalarm every 5 seconds with the actual state of alarm…

when no alarmtime is set… the value of $getalarm will be set "10 spaces"
when an alarmtime is set… the value of $getalarm will be set with new alarmtime

so there could be an update from “Fr. 10:00” to “Sa. 11:00” (or any other day+time)
or from " " to "Sa. 11:00"
or from “Sa. 11:00” to " "

this is based on a cronscript at my android device. this script is reading the database where the alarmtime is set… and sends the set alarmtime… or " " (10 spaces), if there is no alarm set… via curl to pimatic… as discribed in my first post…
i use my android device to work as my alarmclock… i want to use the native clock… i just want pimatic to get also the time set… without opening an extra app… or website… or any other change in my daily behaviour… that was the reason for reading the alarmtime from database and send it to pimatic, absolutly automatic.

If have an idea

If time is " " then set time to 0:0 and state to 0
If time not 0:0 then set state to 1

If time and state is 1 then alarm

first: i can´t set a “0:0”… its allways cut at the ":"
setting value 0:0 results in 0
setting value 45:23 results in 45
and so on…
and without quotes i get an error…

second:
it´s not working this way

im able to handle the setting of the variables… but it seems there is a problem, when i check if the variable gets changed, at the same time…

EDIT:
ooooooooook… after playing around for some HOURS! i found the problem…

when a rule gets active… the value before its change is used… that makes it horrible to use “if $variable changes”…

this is not a kind of “external setting”… its rule problem…

so i will open a new thread to discuss this…

what ever… thx a lot

EDIT2:
after sweetpi fixed pimatic and its strange behaviour of $var changes and i managed to send “noAlarm” instead of " " (10 spaces) from my mobiledivice to update the value of the variable, now this seems to work:

if $getalarm changes and $getalarm is not “noAlarm” then set $alarmtime = $getalarm and $alarmstate = 1

if $getalarm = “noAlarm” then set $alarmstate = 0

if $alarmstate = 1 and it is $alarmtime then switch RFSwitch1 on

This produces onetime an error… when installing the last rule and the value of $alarmtime is not a valid time… but this should only happen ONES…

btw… this will be the basis for an RGB sunrise-alarm-clock… more info will follow in another thread… at another day…
(already realised via a few php scripts… now i want to realise with pimatic)