/********************************
  Student Name: 
    Man Lai Sun       230226334
    Leung Kai Chung   230268664
    Leung Wing Kit    230279168
    Liu Kwok Kin      230329557

  Class: EG524403-1A
  Student number: 230268664

  Filename: sketch.ino
  Demo URL: https://wokwi.com/projects/383445472129549313
*/

#include "pin_map.h"
#include "traffic_light.h"

TrafficLight* lights[2];   // Two set of traffic light
TaskHandle_t handler = NULL; // The new task to 'Dic' the buzzer

void setup() {
  /******** Init Buzzer Pin **********/
  pinMode(A_BUZZER_PIN, OUTPUT);
  pinMode(B_BUZZER_PIN, OUTPUT);

  ledcSetup(0, 100, 8);
  ledcAttachPin ( A_BUZZER_PIN, 0 );
  ledcSetup(1, 100, 8);
  ledcAttachPin ( B_BUZZER_PIN, 1 );
  /***********************************/

  lights[0] = new TrafficLight (
    A_RED_PIN,
    A_GREEN_PIN,
    A_TRIGG_PIN,
    0 );

  lights[1] = new TrafficLight (
    B_RED_PIN,
    B_GREEN_PIN,
    B_TRIGG_PIN,
    1 );
}

void loop() {
  int side = TrafficLight::GetSide();

  xTaskCreate(
    TrafficLight::BuzzerOnRed,          // Function that should be called
    "buzzerInRed",   // Task name
    1000,                 // Stack
    NULL,                 // Param
    1,                    // priority
    &handler           // Task handle
  );

  lights[side] -> toRed ( );
  lights[!side] -> toGreen ( );
  delay ( 5000 ) ;
  lights[!side] -> blinkGreen ( );
  lights[side] -> trigg ( );
  lights[!side] -> blinkGreen ( );
  lights[side] -> trigg ( );
  if (handler != NULL) {
    vTaskDelete(handler);
    handler = NULL;
  }
  ledcWriteTone(side, 0);

  TrafficLight::changeSize() ;   // change the light side
}