Idea How execute mapping in the loop

Hello,
I want to execute a mapping loop with a condition of stop , I put a countdown script , if the value is greater than 0 I rerun mapping .

the process executes only once time !! , I do not know why when everything seems logical
I attached

a photo.

Thank you,

Zineddine

The content of the scripting action 'MAJ_NIVEAU_A_TRAITER' is as follow:
**
var_niveau=${~/pintniveau}$;
var_niveau=var_niveau-1;
__ctx__.publishVariable("~/pintniveau",var_niveau);
**
The variable (pintniveau) is initialized with an int of value 5, the goal is to start with 5 and arrive to 0.

The two different conditions are : ** ${~/pintniveau}$>0 ** to the End else ** ${~/pintniveau}$>0 ** to rerun last mapping.

Sorry, yes the condition to "End" action is "${~/pintniveau}$==0"