#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include <Arduino.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <Arduino.h>
#include <LiquidCrystal_I2C.h>
#include "sendtoSlack.h"
/* 3 button box, when button is pressed, it will send a message to slack, and light up the LED stack light
Use FreeRTOS to parallelize 3 tasks for 3 lights
Include a I2C LCD to display the status of the system
Include the 4 th button to reset the lights
Include OTA to update the code
*/

const String Machine = "C1";

const int buttonPin1=14;
const int buttonPin2=12;
const int buttonPin3=13;
const int resetPin=27;


const int ledPin1=26;
const int ledPin2=25;
const int ledPin3=33;

// for toggle button function, need to keep track of the state of the button
bool callHelp_1=false;
bool isFaulty_2=false;
bool isFaulty_3=false;

LiquidCrystal_I2C lcd(0x27,20,4);

void light1(void * parameter){
  while (1){
    // toggle task state
  Serial.println(digitalRead(buttonPin1));
// if pin1 has been hold for 2 seconds, send a message to slack and light up the LED
// 2 second confirmation for caling for help,(cancel help no wait)
    if (digitalRead(buttonPin1)==HIGH && digitalRead(ledPin1)==LOW && callHelp_1==false ){
    lcd.setCursor(0,0);
    lcd.print("Please hold");

      vTaskDelay(2000);
  Serial.println(digitalRead(buttonPin1));

      // Serial.print("button state: ");
      // Serial.println(digitalRead(buttonPin1));
      if (digitalRead(buttonPin1)==HIGH  ){
        
        digitalWrite(ledPin1,HIGH);

              lcd.clear();
              lcd.setCursor(0,0);

              lcd.print("Calling technician");
              postToSlackWEBHOOK_digital("Technician", Machine);
              
              
              lcd.clear();
              lcd.setCursor(0,0);
              lcd.print("Help called");
              callHelp_1=true;
        } else{
           lcd.clear();
        lcd.setCursor(0,0);
        lcd.print("Cancelled");
          continue;
        }
     
    }
// cancel help
    if (digitalRead(buttonPin1)==HIGH && digitalRead(ledPin1)==HIGH && callHelp_1==true){
        Serial.println("cannelling");
        Serial.println(digitalRead(buttonPin1));


        digitalWrite(ledPin1,LOW);
        callHelp_1=false;
        // spam killer

        vTaskDelay(2000);

        lcd.clear();
        lcd.setCursor(0,0);
        lcd.print("Ready to Use");
        }
    

// // program the help light
//             if(isFaulty_1 && digitalRead(ledPin1)==HIGH){


//               lcd.clear();
//               lcd.setCursor(0,0);

//               lcd.print("Calling technician");
//               vTaskDelay(1500);
//               isFaulty_1=false;
              
//               postToSlackWEBHOOK_digital("Technician", Machine);
//               // 10s delay to prevent spamming
//               vTaskDelay(5000/portTICK_PERIOD_MS);
//             } 
//               vTaskDelay(150);

          }
          

}

void setup() {
  Serial.begin(9600);
  lcd.init();                      // initialize the lcd 
  lcd.backlight();

  lcd.setCursor(0, 0);
  lcd.print("Connecting to ");
  lcd.setCursor(0, 1);
  lcd.print("WiFi ");
  WifiConnect();

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("WiFi connected");
  
  pinMode(buttonPin1,INPUT);
  pinMode(buttonPin2,INPUT);
  pinMode(buttonPin3,INPUT);
  pinMode(resetPin,INPUT);
  pinMode(ledPin1,OUTPUT);
  pinMode(ledPin2,OUTPUT);
  pinMode(ledPin3,OUTPUT);

  xTaskCreatePinnedToCore(
    light1,   /* Task function. */
    "light1",     /* name of task. */
    10000,       /* Stack size of task */
    NULL,        /* parameter of the task */
    1,           /* priority of the task */
    NULL,        /* Task handle to keep track of created task */
    0);          /* pin task to core 0 */
  // put your setup code here, to run once:
  vTaskDelay(1500);

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Ready to Use");
}

void loop() {
  
  // put your main code here, to run repeatedly:
}