//----- Oled display --------------------------------------------------------------//
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH        128 // OLED display width, in pixels
#define SCREEN_HEIGHT        64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET            4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

//------ DHT sensor ---------------------------------//
#include "DHT.h"
#define DHTPIN 2     
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
DHT dht(DHTPIN, DHTTYPE);

//----- Include for time interrupts -----------------//
#include <TimerOne.h>
//---- Variables updated in interrupt --------//
volatile unsigned int halfsecond=0;
volatile unsigned int second=0;
volatile unsigned int minute=0;
volatile unsigned int hour=12;

//----- Include for debugging ----------------//
#include "ArduinoTrace.h"

//-------- myObjects instantiations -----------//
#include "oledDisplay.h"
#include "doProcess.h"
OledDisplay myOledDisplay;
DoProcess myDoProcess;
//---------------------------------------------//

//---- Task Scheduler ------------------------//
#include <TaskScheduler.h>
Scheduler ts;

//---- Tasks definitions----------------------//
void task1CB();
Task tTask1(100,TASK_FOREVER,&task1CB,&ts);

void task2CB();
Task tTask2(100,TASK_FOREVER,&task2CB,&ts);

//===== Tasks CallBacks ======================//
void task1CB()
{
  Task1();
}

void task2CB()
{
  Task2();
}

//======================== SETUP =====================//
void setup() {
  // put your setup code here, to run once:

  //---- Begin oled display ------------------------//
  Serial.begin(115200);
  // initialize and clear display
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;);
  }
  //---- DHT begin ---------------------------------//
  dht.begin();

  //--- Pin configurations ------------------//
  pinMode(3, INPUT_PULLUP);   //slider switch
  pinMode(4, INPUT_PULLUP);   //button

  //--- Display initial setting and clear ---//
  display.setTextSize (2);
  display.setTextColor (WHITE);
  display.clearDisplay();
  display.display();
  
  //--- start message ---------//
  Serial.println("INICIO: ");

  //--- Enabling Interrupts ---//
  Timer1.initialize(500000);
  Timer1.attachInterrupt(timingISR); // timingISR to run every 0.5 seconds

  //--- Enabling Tasks ------//
  tTask1.enable();
  tTask2.enable();
  tTask2.delay(50);
}

//======================== LOOP =====================
void loop() {
  ts.execute();
}

//======================= TASKS =====================

//---------------- TASK1 ----------------------------
void Task1()
{
  myOledDisplay.run(); 
}

//---------------- TASK2 ----------------------------
void Task2()
{
  myDoProcess.run();
}


//==================  ISR  ===============================
void timingISR()
{
  halfsecond ++;
  if(halfsecond == 2){
    second ++;
    if(second == 60)
    {
      minute ++;
      if(minute == 60)
      {
        hour ++;
        if(hour == 24)hour = 0;
        minute = 0;
      }
      second = 0;
    }
    halfsecond = 0;
  }
}
//=======================================================