Switch Feedback.usp

#DEFAULT_VOLATILE
#ENABLE_STACK_CHECKING
#ENABLE_TRACE


STRING_INPUT  returned_string[1000], device_id[30]; 
DIGITAL_OUTPUT switch_on_fb, switch_off_fb;
nonvolatile string lost_feedback[50], lost_id[50];
CHANGE returned_string
{
	STRING extractedData[100];
	STRING response_switch_state_fb$[100];
	STRING added_temp[50];
	INTEGER startPos;
	INTEGER endPos;
	device_id = Mid(device_id, 13, 11);
    returned_string = lost_id + returned_string;
	lost_id = "";
	startPos = Find(device_id, returned_string);
	//print("startPos is: %d", startPos);
	if(len(lost_feedback) > 0){
		//This runs when we know that the feedback is split in 2
		lost_feedback = lost_feedback + Mid(returned_string, 1, 5-Len(lost_feedback));
		MakeString(response_switch_state_fb$, "%s", lost_feedback);  // Store for feedback
		print("response string is : %s", response_switch_state_fb$); 
		if(response_switch_state_fb$ = "true,"){
			switch_on_fb = 1;
			switch_off_fb = 0;
		}
		else{
			switch_on_fb = 0;
			switch_off_fb = 1;
		}
		lost_feedback = "";		
	}
    else if (startPos)
    {
        endPos = startPos + 31;
		if(endPos < 251){
			extractedData = Mid(returned_string, endPos, 5);  // Extract characters 21 to 25
        	MakeString(response_switch_state_fb$, "%s", extractedData);  // Store for feedback
			print("response string is : %s", response_switch_state_fb$); 
			if(response_switch_state_fb$ = "true,"){
				switch_on_fb = 1;
				switch_off_fb = 0;
			}
			else{
				switch_on_fb = 0;
				switch_off_fb = 1;
			}
			added_temp = "";
			lost_feedback = added_temp;
			lost_id = "";
		}
		else{
			print("feedback in next line");
			added_temp = Mid(returned_string, endPos, 5);
			lost_feedback = added_temp;
			print("lost_feedback is : %s", lost_feedback);
		}
        		
    }
    else
    {
        Trace("Device ID not found.");
		extractedData = Mid(returned_string, 230, 25);
		lost_id = extractedData;
    }
    
}


Function Main()
{	
    // Initialize declared global and local variables/arrays as needed.
    
    WaitForInitializationComplete();
}