/*


*/
#include <Ds1302.h>
#include "DHT.h"
#include <LiquidCrystal.h>
#include <SD.h>

#define CS_PIN 53


#define DHTPIN 2
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

#define DS1302_RAMSIZE 31

const int rs = 3;   // Pin 3  on Arduino to pin 4  (RS) on LCD
const int en = 4;   // Pin 3  on Arduino to pin 6  (E)  on LCD
const int d4 = 12;  // Pin 12 on Arduino to pin 11 (D4) on LCD
const int d5 = 10;  // Pin 10 on Arduino to pin 12 (D5) on LCD
const int d6 = 9;   // Pin 9  on Arduino to pin 13 (D6) on LCD
const int d7 = 8;   // Pin 8  on Arduino to pin 14 (D7) on LCD

File root;
DHT dht(DHTPIN, DHTTYPE);
// DS1302 rtc(ce_pin, sck_pin, io_pin);
Ds1302 rtc(5, 7, 6);
uint8_t prev_second, prev_min;
const char data[] = "Hello World";
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);


const static char* WeekDays[] =
{
  "Monday",
  "Tuesday",
  "Wednesday",
  "Thursday",
  "Friday",
  "Saturday",
  "Sunday"
};


void setup()
{
  Serial.begin(115200);
  rtc.init();
  dht.begin();
  lcd.begin(20, 4);
  // Print Hello World! to the LCD.
  lcd.setCursor(3, 0);
  lcd.print("besm allah");

  Ds1302::DateTime dt = {
    .year = 22,
    .month = Ds1302::MONTH_NOV,
    .day = 27,
    .hour = 2,
    .minute = 15,
    .second = 45,
    .dow = Ds1302::DOW_SUN
  };

  rtc.setDateTime(&dt);
  Serial.print("Initializing SD card... ");

  if (!SD.begin(CS_PIN)) {
    Serial.println("Card initialization failed!");
    while (true);
  }
  Serial.println("initialization done.");
}

uint8_t readByte()
{
  pinMode(6, INPUT);
  uint8_t value = 0;
  for (uint8_t i = 0; i < 8; ++i)
  {
    uint8_t bit = digitalRead(6);
    value |= (bit << i);
    digitalWrite(7, HIGH);
    digitalWrite(7, LOW);
  }
  return value;
}

void printTime(Ds1302::DateTime &now)
{
  Serial.print("20");
  Serial.print(now.year);
  Serial.print('-');

  if (now.month < 10)
  {
    Serial.print('0');
  }

  Serial.print(now.month);
  Serial.print('-');

  if (now.day < 10)
  {
    Serial.print('0');
  }

  Serial.print(now.day);
  Serial.print(' ');
  Serial.print(WeekDays[now.dow - 1]);
  Serial.print(' ');

  if (now.hour < 10)
  {
    Serial.print('0');
  }

  Serial.print(now.hour);
  Serial.print(':');

  if (now.minute < 10)
  {
    Serial.print('0');
  }

  Serial.print(now.minute);
  Serial.print(':');

  if (now.second < 10)
  {
    Serial.print('0');
  }

  Serial.print(now.second);
  Serial.println();
}

void loop()
{ float temperature, humidity;
  Ds1302::DateTime now;
  rtc.getDateTime(&now);
  char dateString[20] = {0,};
  char timeString[20] = {0,};
  if (now.second != prev_second)
  {
    temperature = dht.readTemperature();
    humidity = dht.readHumidity();
    datetimeString(now, dateString, timeString);
    // Check if any reads failed and exit early (to try again).
    if (isnan(temperature) || isnan(humidity)) {
      Serial.println(F("Failed to read from DHT sensor!"));
      return;
    }

    Serial.print(F("Humidity: "));
    Serial.print(humidity);
    Serial.print(F("%  Temperature: "));
    Serial.print(temperature);
    Serial.println(F("°C "));
    lcd.setCursor(0, 1);
    lcd.print(F("Humidity: "));
    lcd.println(humidity);
    lcd.setCursor(20, 0);
    lcd.print(("Temp: "));
    lcd.print(temperature);
    lcd.println(F("°C "));
    lcd.setCursor(20, 1);
    lcd.print(dateString);
    lcd.print("  ");
    lcd.print(timeString);

    prev_second = now.second;
    uint8_t ram[DS1302_RAMSIZE];

    for (int i = 0; i < 11; ++i)
    {
      pinMode(6, OUTPUT);
      shiftOut(6, 7, LSBFIRST, 0xC1 + 2 * i);
      ram[i] = readByte();
    }

    Serial.print((const char*)ram);
    lcd.print((const char*)ram);
    Serial.print(' ');
    printTime(now);

    if (now.minute != prev_min)
    { prev_min = now.minute;
      File writeFile = SD.open("data.txt", FILE_WRITE);
      writeFile.write("//");
      writeFile.write(dateString);
      writeFile.write("--");
      writeFile.write(timeString);
      writeFile.write("--hum:");
      char hum[6];
      snprintf (hum, sizeof(hum), "%f", humidity);
      writeFile.write(hum);
      writeFile.write("--temp:");
      writeFile.write(temperature);
      writeFile.close();
      File textFile = SD.open("data.txt");
      if (textFile) {
        Serial.print("data.txt: ");
        while (textFile.available()) {
          Serial.write(textFile.read());
        }
        Serial.println("");
        Serial.println("/file end");
        textFile.close();
      } else {
        Serial.println("error opening wokwi.txt!");
      }

    }
  }

  delay(100);
}

void datetimeString(Ds1302::DateTime dt, char* dateString, char* timeString)
{
  snprintf_P(dateString,
             10,
             PSTR("%04u-%02u-%02u"),
             dt.year + 2000,
             dt.month,
             dt.day);

  snprintf_P(timeString,
             10,
             PSTR("%02u:%02u:%02u"),
             dt.hour,
             dt.minute,
             dt.second);
}





/*
  void formstring()
  { char dateString[20] = {0,};
  char timeString[20] = {0,};
   snprintf_P(dateString,
  countof(dateString),
  PSTR("%04u-%02u-%02u"),
  dt.Year(),
  dt.Month(),
  dt.Day());

  snprintf_P(timeString,
  countof(dateString),
  PSTR("%02u:%02u-%02u"),
  dt.Hour(),
  dt.Minute(),
  dt.Second());

  /*lcd.setCursor(0,0);
  lcd.print(dateString);
  lcd.setCursor(0,1);
  lcd.print(timeString);

  }*/