#include <Keypad.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <LiquidCrystal_I2C.h>
#include <Firebase_ESP_Client.h>

#define I2C_ADDR 0x27
#define Lcd_columns 16
#define Lcd_lines 4
#define FIREBASE_HOST "https://denemedurus-default-rtdb.firebaseio.com/"
#define FIREBASE_AUTH  "" 
uint8_t state = 0;
unsigned long ClockTimer;
unsigned long weatherAPItimer;
unsigned long weatherDisplayTimer;
uint8_t valIndex;
uint8_t cursorPos;
bool setTimeFromAPI();
const byte akim = 14;
const String endpoint = "http://worldtimeapi.org/api/timezone/Europe/Berlin";

struct timeval currentTime;
struct timeval stopTime;
struct timeval startTime;
int akimdeger();


const char* password = "";
const char* wid = "Wokwi-GUEST";
char entered_value [6];
const uint8_t ROWS = 4;
const uint8_t COLS = 4;
char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};
uint8_t colPins[COLS] = { 21, 20, 19, 18 };
uint8_t rowPins[ROWS] = { 35, 34, 33, 26 };
LiquidCrystal_I2C lcd(I2C_ADDR, Lcd_columns, Lcd_lines);
FirebaseData firebasedata;
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);


bool setTimeFromAPI()
{
  if ((WiFi.status() == WL_CONNECTED))
  {
    HTTPClient http;
    http.begin(endpoint);
    int httpCode = http.GET();
    if (httpCode > 0)
    { 
      String result = http.getString();
      DynamicJsonDocument doc(2048);
      DeserializationError error = deserializeJson(doc, result);
      if (!error)
      {
        String timeStr = doc["datetime"].as<String>();
        uint8_t i = timeStr.indexOf('T');
        timeStr = timeStr.substring(i + 1, i + 9);
        timeStr.replace(":", "");
        char buf [6];
        timeStr.toCharArray(buf, 6);
        setTime(buf);
        return true;
      }
    }
    http.end();
  }
  return false;
}

void setTime(char time [6])
{
char hoursEntered [2] = { time[0],time[1] };
char minuteEntered [2] = { time[2], time[3] };
char secondsEntered [2] = { time[4],time[5] };
uint8_t hours = atoi(hoursEntered);
uint8_t minutes = atoi(minuteEntered);
uint32_t seconds = atoi(secondsEntered);
uint32_t hoursToMinutes = hours * 60;
uint32_t totalMinutes = hoursToMinutes + minutes;
seconds += totalMinutes * 60;
currentTime.tv_sec = seconds;
currentTime.tv_usec = 0 ;
settimeofday(&currentTime , NULL);
lcd.clear();

}


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Merhaba Hosgeldiniz");
  Wire.begin(16,15);
  lcd.init();
  lcd.backlight();
  WiFi.begin(wid,password);
  
  
  while (WiFi.status() != WL_CONNECTED)
  {
    lcd.print(".");
    delay(1000);
  }
  lcd.clear();

  if(!setTimeFromAPI())
  {
    char t [] = __TIME__;
    char compileTime [] = { t[0], t[1], t[3], t[4], t[6], t[7] };
    setTime(compileTime);
  }
    Firebase.begin(FIREBASE_HOST,FIREBASE_AUTH );
    Firebase.reconnectWiFi(true);
    gettimeofday(&currentTime, NULL);
    stopTime.tv_sec = currentTime.tv_sec;
  pinMode(akim, INPUT);
}

void veri_yaz(String DurusTuru,String DurusSebebi)
{
  gettimeofday(&currentTime,NULL);
  int Dakika = curretTime.tv_sec / 60
  Firebase.setFloat(firebasedata,"DurusTuru",0,"DurusSebebi",0,"Saniye",saniye)

}

int akimdeger()
{
  int oku = analogRead(akim);
  Serial.println(oku);
  return oku;
  
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation


  if (akimdeger() >= 1065)
      {
        gettimeofday(&currentTime, NULL);
        startTime.tv_sec = currentTime.tv_sec;

        if (startTime.tv_sec - stopTime.tv_sec >= 5)
          if (state == 0)
          { 
          screen1();
          veri_yaz("1","1");
          }
          
          getinput();
      }
    else
    {
      state = 0;
      veri_yaz("1","1");
    }
}

  void screen1()
  {
    lcd.setCursor(0,0);
    lcd.print("Durus Turu sec");
    lcd.setCursor(0,1);
    lcd.print("A plansiz");
    lcd.setCursor(0,2);
    lcd.print("B planli");
    state = 1;
  }
  void recordScreen()
  {
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Bilgilendirme !!");
    lcd.setCursor(0,1);
    lcd.print("# durus kaydi");
    lcd.setCursor(0,2);
    lcd.print("* silme işlemi");
    delay(3000);
    lcd.clear();
  }
  void recordScreen1(String mesaj)
  {
    lcd.setCursor(0,0);
    lcd.print(mesaj);
  }

  void getinput()
  {
    switch (state) 
    {
      case 1:
      Keyenter1();
      break;
      case 2:
     
      Keyenter2();
      break;
      case 3:
      
      Keyenter2();
      break;

    }

  }

  void Keyenter1() // bu veri giriş durumu planlı veya plansız girişlerin seçilmesi için kullanılıyor
{
  char key = keypad.getKey(); 
  switch(key)
  {
    case 'A':
      state = 2;
      recordScreen();
      recordScreen1("Planlı Durus");
      break;
    case 'B':
      state = 3;
      recordScreen();
      recordScreen1("Plansız Durus");
      break;
    case '#':
      //rtc.silence();
      break;
    case '*':
      //rtc.addToSnooze();
      break;
  }
}

  void Keyenter2() // bu veri giriş durumu planlı veya plansız girişlerin kayıt edilmesi için kullanılıyor
  {
     char key = keypad.getKey();
      switch(key)
      {
      case '#':
        //kayit prosedürü burada
        //state = 0;
      break;
      case '*':
        eraseChar();
      break;
      default:
      if (isDigit(key))
      {
        nextChar(key);
      }
      break;
  }

  }

  void nextChar(char key)
{
  if (valIndex < 6)
  {
    entered_value[valIndex] = key;
    lcd.setCursor(0, 1);
    lcd.print(entered_value);
    cursorPos++;
    valIndex++;
  }
}

void eraseChar()
{
  if (valIndex > 0 )
  {
    valIndex--;
    cursorPos--;
    entered_value[valIndex] = '\0';
    lcd.setCursor(cursorPos, 1);
    lcd.print(' ');
    lcd.setCursor(cursorPos, 1);
  }
}