#include "api.h"
#define HighTemp 3750 //250 °C
#define Thresh 0.1
#define TempTreshH 2750 // ~ 183 °C
#define TempTreshL 2650 // ~ 177 °C
#define TempNormal 2700 //180 °C
#define IgniterInterval 1700 // ~ 5 sec

//Red LED shows the status of the "oven" -> ON: Oven is on // OFF: Oven is off
//Green LED shows the status of the "door" -> ON: door is open // OFF: door is closed
//Blue LED shows the status of the "valve" -> ON: Valve is Open // OFF: Valve is close
//Yellow LED shows the status of the "igniter" -> ON: Igniter is on // OFF: Igniter is off

unsigned int DangerousTemp = 0;
unsigned long Cnt = 0;

void setup() {
  Serial.begin(115200);
  setup_api();

  Serial.println("Elf oven 2000 starting up.");
  serial_printf("Days without fire incident: %i\n", 0);
}


void loop() {
  while(read_voltage(DOOR_SENSOR)<=90 && !DangerousTemp){
        if(read_voltage(TEMPERATURE_SENSOR)>=HighTemp)
            DangerousTemp = 1;
        if(read_voltage(TEMPERATURE_SENSOR)<TempTreshL){  
            set_output(GAS_VALVE, HIGH);
            set_output(IGNITER, HIGH);
        if(Cnt<IgniterInterval)
            Cnt++;
        else 
          set_output(IGNITER, LOW);
      }
      if(read_voltage(TEMPERATURE_SENSOR)>TempTreshH){ 
          set_output(GAS_VALVE, LOW); 
          set_output(IGNITER, LOW);
          Cnt=0;
      }
      set_output(Oven, HIGH);
      set_output(Door, LOW);      
      serial_printf("sensor_voltage %i\n", read_voltage(TEMPERATURE_SENSOR));
  }

  if(DangerousTemp){ // Keep the Oven off while the Temp is higher than max mean
     set_output(Oven, LOW);
     set_output(GAS_VALVE, LOW);  
     set_output(IGNITER, LOW);    
     Cnt=0;  
  }
  if(read_voltage(TEMPERATURE_SENSOR)<=(HighTemp - (HighTemp*Thresh))) // Check if Temp has dropped under max figure
       DangerousTemp = 0 ;                                             // and turn the oven on if Temp is in the right range
  if(read_voltage(DOOR_SENSOR)>90){    // Check if the door was opened -- Deactive all parts in this situation
      set_output(Oven, LOW);
      set_output(Door, HIGH);
      set_output(GAS_VALVE, LOW);
      set_output(IGNITER, LOW);    
      Cnt=0;
       }
  else
      set_output(Door, LOW);    // If the door was closed, let the oven comes back to its normal operation
  serial_printf("sensor_voltage %i\n", read_voltage(TEMPERATURE_SENSOR));
  delay(1000);
}