#include <WiFi.h>


//Pins
int pin_rele_sirene = 5;
int pin_rele_valvula = 18;
int pin_micro_1 = 34;
int pin_buzzer = 2;

//Vars
bool reset_after_water = false;
int sensibility = 70;
int water_time = 2;//in seconds
int decay_time = 5;//in seconds
int number_of_warnings = 2;

//Counters
int last_micro_val = 0;
long last_trigger_time = 0;
int trigger_count = 0;

int read_sensors(){
  return map(analogRead(pin_micro_1),0,4096,0,100);
}


void activate_water(){
  if(reset_after_water){
    trigger_count = 0;
  }
  long sleep_time = 1000 * water_time;
  Serial.print("water activated! for ");
  Serial.println(sleep_time);
  digitalWrite(pin_rele_sirene, HIGH);
  digitalWrite(pin_rele_valvula, HIGH);
  delay(sleep_time);
  digitalWrite(pin_rele_valvula, LOW);
  digitalWrite(pin_rele_sirene, LOW);

}

void activate_alarm(int count){
  digitalWrite(pin_rele_sirene, HIGH);
  long sleep_time = 1000 * count;
  Serial.println(sleep_time);
  //delay(sleep_time);
  delay(25);
  digitalWrite(pin_rele_sirene, LOW);
  delay(sleep_time-25);

}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");

  pinMode(pin_micro_1, INPUT);
  pinMode(pin_rele_sirene, OUTPUT);
  pinMode(pin_rele_valvula, OUTPUT);

  
  pinMode(pin_buzzer, OUTPUT);
  analogWrite(pin_buzzer, 2);
}


void loop() {

  int current_val = read_sensors();
  if (last_micro_val != current_val){
    last_micro_val = current_val;
    Serial.println(current_val);
  }
  long currentMillis = millis();
  //check decay
  if(currentMillis - last_trigger_time >= decay_time*1000 && trigger_count > 0){
    trigger_count > 1 ? trigger_count -=1 : trigger_count = 0;
    Serial.print("trigger count decay  ");
    Serial.println(trigger_count);
    last_trigger_time = millis();
 
  }

  if (current_val > sensibility) {
    trigger_count +=1;
    Serial.print("triggered ");
    Serial.println(trigger_count);
    last_trigger_time = millis();

    if(trigger_count >=1  && trigger_count <= number_of_warnings ){
      activate_alarm(trigger_count);
    }
    if(trigger_count > number_of_warnings ){
      activate_water();
    }
  }

  delay(10);
}