/*
อัพเดทล่าสุด 8 nov 23
-ฟังก์ชั่นที่อยากทำ-status
-แยกโปรแกรมไฟกระพริบ->Done
-แจ้งเตือนเมื่อยกงานออกก่อนเวลา->wait
-แสดงเวลาของแต่ล่ะช่องในจอเดียว->done 80%
-มีเสียงแจ้งเตือนเมื่อหมดเวลา->Done
*/
//#include <Wire.h>   //ของจริง
//#include <LiquidCrystal_I2C.h> //ของจริง
//LiquidCrystal_I2C lcd(0x27, 16, 2); //ของจริง

#include <LiquidCrystal_I2C.h> //ของ wokwi

#define I2C_ADDR    0x27  //ของ wokwi
#define LCD_COLUMNS 16 //ของ wokwi
#define LCD_LINES   2 //ของ wokwi

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES); //ของ wokwi



unsigned long currentMillis1 ;
unsigned long seconds1;
unsigned long minutes1;
unsigned long hours1;

unsigned long currentMillis2 ;
unsigned long seconds2;
unsigned long minutes2;

unsigned long hours2;

unsigned long currentMillis3 ;
unsigned long seconds3;
unsigned long minutes3;
unsigned long hours3;

int led1=5; // Led หลอดที่ 1
int led2=4; // Led หลอดที่ 2
int led3=3; // Led หลอดที่ 3
int led4=2; // Led หลอดที่ 4

int buzzer=6;  // buzzer

int btn1=12; // ปุ่มกดที่ 1
int btn2=11; // ปุ่มกดที่ 2
int btn3=10; // ปุ่มกดที่ 3
int btn4=9; // ปุ่มกดที่ 4

int buzzerState = LOW;
int alarmState1 = LOW;
int alarmState2 = LOW;
int alarmState3 = LOW;

int ledState1 = LOW;  
int ledState2 = LOW; 
int ledState3 = LOW; 

long previousMillis1 = 0;        // will store last time LED was updated
long previousMillis2 = 0;
long previousMillis3 = 0;

long previousMillisAlm = 0;


long interval = 300;



double ledblink=160; //ตั้งเวลา led กระพริบ

bool btnsta1=0;
bool btnprevsta1=0;
bool ledsta1=0;

bool btnsta2=0;
bool btnprevsta2=0;
bool ledsta2=0;

bool btnsta3=0;
bool btnprevsta3=0;
bool ledsta3=0;

unsigned long settime=60000; //ตั้งเวลา coolling 

unsigned long starttime1=0;
unsigned long elapetime1=0;
unsigned long starttime2=0;
unsigned long elapetime2=0;
unsigned long starttime3=0;
unsigned long elapetime3=0;
void setup() {
  Serial.begin(9600);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(buzzer, OUTPUT);


  pinMode(btn1, INPUT);
  pinMode(btn2, INPUT);
  pinMode(btn3, INPUT);

  //lcd.begin(); //ของจริง
  lcd.init();//ของ wokwi
  // Print a message to the LCD.
  lcd.setCursor(3,0);
  lcd.print("MIE BARLAP");
  lcd.setCursor(5,1);
  lcd.print("TEAM B");
  delay(3000);
  lcd.setCursor(0,0);
  lcd.print("1>00:00 2>00:00");
  lcd.setCursor(0,1);
  lcd.print("3>00:00 4>00:00");
  delay(200);
}

void loop() {
  btnsta1=digitalRead(btn1);
  btnsta2=digitalRead(btn2);
  btnsta3=digitalRead(btn3);

  if(btnsta1==1){
    Serial.println("button1 on");
  checkled1();
  }
  else{
    digitalWrite(led1, LOW);
    alarmState1=0;
    btnprevsta1=0;
    starttime1=millis();
   // lcd.setCursor(2, 0);
    //lcd.print("WAIT ");
    
  }

  if(btnsta2==1){
  checkled2();
  }
  else{
    digitalWrite(led2, LOW);
    alarmState2=0;
    btnprevsta2=0;
    starttime2=millis();
  }

  if(btnsta3==1){
  checkled3();
  }
  else{
    digitalWrite(led3, LOW);
    alarmState3=0;
    btnprevsta3=0;
    starttime3=millis();
  }
  if(elapetime1<=settime){
  tray1time();
  }
  else{
    lcd.setCursor(2, 0);
    lcd.print("OVER ");
  }
  if(elapetime2<=settime){
  tray2time();
  }
  else{
    lcd.setCursor(10, 0);
    lcd.print("OVER ");
  }
  if(elapetime3<=settime){
  tray3time();
  }
  else{
    lcd.setCursor(2, 1);
    lcd.print("OVER ");
  }
  if(alarmState1==1 || alarmState2==1 ||alarmState3==1){
    digitalWrite(buzzer, HIGH);
  }
  else{
    digitalWrite(buzzer, LOW);
  }
}

//----------------------------------------Check LED------------------------------------//
void checkled1(){
  if(btnprevsta1=0){
    starttime1=millis();
    //digitalWrite(led1, HIGH);
  }
  else{
    elapetime1=millis()-starttime1;
    if(elapetime1>=settime){
      ledblink1();
      //digitalWrite(buzzer, HIGH);
      alarmState1=1;
    }
    else{
      digitalWrite(led1, HIGH);
      alarmState1=0;
    }
  }

}

void checkled2(){
  if(btnprevsta2=0){
    starttime2=millis();
    
  }
  else{
    elapetime2=millis()-starttime2;
    if(elapetime2>=settime){
      ledblink2();
      alarmState2=1;
      //digitalWrite(buzzer, HIGH);
      //Serial.println("Tray_2 Overtime");
    }
    else{
      digitalWrite(led2, HIGH);
      alarmState2=0;
    }
  }

}

void checkled3(){
  if(btnprevsta3=0){
    starttime3=millis();
   
  }
  else{
    elapetime3=millis()-starttime3;
    if(elapetime3>=settime){
      ledblink3();
      alarmState3=1;
    }
    else{
      //Serial.println("Tray_3 Cooling start");
      digitalWrite(led3, HIGH);
      alarmState3=0;
    }
  }

}


void ledblink1(){
  unsigned long currentMillis = millis();
	
	if(currentMillis - previousMillis1 > interval) {
    	// save the last time you blinked the LED 
    	previousMillis1 = currentMillis;   

    	// if the LED is off turn it on and vice-versa:
    	if (ledState1 == LOW)
    	  ledState1 = HIGH;
    	else
    	  ledState1 = LOW;

    	// set the LED with the ledState of the variable:
    digitalWrite(led1, ledState1);
  }
	
}

void ledblink2(){
  unsigned long currentMillis = millis();
	
	if(currentMillis - previousMillis2 > interval) {
    	// save the last time you blinked the LED 
    	previousMillis2 = currentMillis;   

    	// if the LED is off turn it on and vice-versa:
    	if (ledState2 == LOW)
    	  ledState2 = HIGH;
    	else
    	  ledState2 = LOW;

    	// set the LED with the ledState of the variable:
    digitalWrite(led2, ledState2);
  }
	
}

void ledblink3(){
  unsigned long currentMillis = millis();
	
	if(currentMillis - previousMillis3 > interval) {
    	// save the last time you blinked the LED 
    	previousMillis3 = currentMillis;   

    	// if the LED is off turn it on and vice-versa:
    	if (ledState3 == LOW)
    	  ledState3 = HIGH;
    	else
    	  ledState3 = LOW;

    	// set the LED with the ledState of the variable:
    digitalWrite(led3, ledState3);
  }
	
}
void tray1time(){
  currentMillis1 = elapetime1;
  seconds1 = currentMillis1 / 1000;
  minutes1 = seconds1 / 60;
  hours1 = minutes1 / 60;
  //unsigned long days = hours / 24;
  currentMillis1 %= 1000;
  seconds1 %= 60;
  minutes1 %= 60;
  hours1 %= 24;

   lcd.setCursor(2, 0);
    if (minutes1 < 10) {
      lcd.print("0");
    }
    lcd.print(minutes1);
    lcd.print(":");
    if (seconds1 < 10) {
      lcd.print("0");
    }
    lcd.print(seconds1);
}
void tray2time(){
  currentMillis2 = elapetime2;
  seconds2 = currentMillis2 / 1000;
  minutes2 = seconds2 / 60;
  hours2 = minutes2 / 60;
  //unsigned long days = hours / 24;
  currentMillis2 %= 1000;
  seconds2 %= 60;
  minutes2 %= 60;
  hours2 %= 24;

   lcd.setCursor(10, 0);
    if (minutes2 < 10) {
      lcd.print("0");
    }
    lcd.print(minutes2);
    lcd.print(":");
    if (seconds2 < 10) {
      lcd.print("0");
    }
    lcd.print(seconds2);
}
void tray3time(){
  currentMillis3 = elapetime3;
  seconds3 = currentMillis3 / 1000;
  minutes3 = seconds3 / 60;
  hours3 = minutes3 / 60;
  //unsigned long days = hours / 24;
  currentMillis3 %= 1000;
  seconds3 %= 60;
  minutes3 %= 60;
  hours3 %= 24;

   lcd.setCursor(2, 1);
    if (minutes3 < 10) {
      lcd.print("0");
    }
    lcd.print(minutes3);
    lcd.print(":");
    if (seconds3 < 10) {
      lcd.print("0");
    }
    lcd.print(seconds3);
}
void overblink(){
  unsigned long currentMillis = millis();
	
	if(currentMillis - previousMillis3 > interval) {
    	// save the last time you blinked the LED 
    	previousMillis3 = currentMillis;   

    	// if the LED is off turn it on and vice-versa:
    	if (ledState3 == LOW)
    	  ledState3 = HIGH;
    	else
    	  ledState3 = LOW;

    	// set the LED with the ledState of the variable:
    digitalWrite(led3, ledState3);
  }
	
}