/*
We need your help to stop forest fires and bake tasty cookies!

See `requirements.md` for how to help.

Then check `notes.md`.

//TODO implement the 5 second timer for IGNITER

*/
#include "api.h"


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

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


void door_sensor_interrupt_handler(bool voltage_high)
{
  while(digitalRead(3) == HIGH){
  set_output(IGNITER, false);
  set_output(GAS_VALVE, false);
  }
}


void loop() {
  if(digitalRead(3) == HIGH){
    door_sensor_interrupt_handler(true);
  }
  int16_t sensor_voltage = read_voltage(TEMPERATURE_SENSOR);
  int16_t sensor_vref = read_voltage(TEMPERATURE_SENSOR_REFERENCE);          //added vref millivolt variable
  int temp_real;
  int voltPer = sensor_voltage/50;
  if(voltPer < 10 || voltPer > 90 ){                                         //checking if voltPer is within temp spec of sensor
    temp_real = 0;                                                           //set to 0 instead of ?????
  }else{
    temp_real = -10 + (3.875 * (voltPer-10));                                //calculating temp from voltPer
    }
  int16_t temp_vref = (sensor_vref-500)/10;                                  //calculating vref temp from millvolts
  serial_printf("sensor_voltage %i\n", sensor_voltage);
  serial_printf("sensor_vref %i\n", sensor_vref);                            //printing vref millivolt
  serial_printf("temp_real %i\n", temp_real);                                //printing real temp in centigrade
  serial_printf("temp_vref %i\n", temp_vref);                                //printing vref temp in centigrade

  if(temp_real < 180){
    set_output (IGNITER, true);
    set_output (GAS_VALVE, true);
  } else if (temp_real > 185){
    set_output (GAS_VALVE, false);
    set_output (IGNITER, false); 
  }

  delay(500);                                                                //lowered iteration period to allow for 5 second delay in IGNITER turning off
}