/**
 * DHT11 Sensor, Analog Standard Servo and LED strip APA102
 * This sketch reads temperature and humidity data from the DHT11 sensor and prints the values to the serial port.
 * It moves servo based on humidity and sends data to serial plotter
 * It turns on LED strip based on temperature 
 */

// Include the DHT11 library for interfacing with the sensor. Include the ESP32 library to interface with the servo. Include the FastLed to interface with the LED strip.
#include <DHT11.h>
#include <ESP32Servo.h>
#include <Adafruit_NeoPixel.h>

#include <WiFi.h>
#include <HTTPClient.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

//Define pins
#define DHTPIN 4
#define SERVO_PIN 9
#define DATA_PIN 20
#define NUM_LEDS 40

// Create Servo instance
Servo myservo;



// Create LED strip
Adafruit_NeoPixel pixels(NUM_LEDS, DATA_PIN, NEO_GRB + NEO_KHZ800);



// Create an instance of the DHT11 class.
// - For Arduino: Connect the sensor to Digital I/O Pin 2.
// - For ESP32-C3: Connect the sensor to pin 4.
// - For ATtiny: pin = 0
DHT11 dht11(4);

const char * ssid = "NIELS Arbejdsmobil";
const char * password = "Leakris1";
//const char* ssid = "Niels OnePlus";
//const char* password = "Leakris1";

String server = "http://maker.ifttt.com";
String eventName = "The_Fish";
String IFTTT_Key = "gYJ3Qq0AjbhTHxH0ETlQ2";
String IFTTTUrl = "https://maker.ifttt.com/trigger/The_Fish/with/key/gYJ3Qq0AjbhTHxH0ETlQ2";

int value1;
int value2;
int value3;

unsigned long previousMillis = 0;
unsigned long previousMillisPrint = 0;

void setup() {
  // Uncomment/edit one of the following lines for your leds arrangement.
  // ## Clockless types ##
  pixels.begin();
  //FastLED.addLeds<APA102, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // BGR ordering is typical

  // Initialize serial communication to allow debugging and data readout.
  // Using a baud rate of 9600 bps.
  Serial.begin(9600);



  int pos = 0;  // variable to store the servo position

  //For ATtiny1614, pin:10
  //ForESP32-C3, pin:9
  //For ESP-C3 small board, pin:3
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Viola, Connected !!!");
  //LCD
  lcd.init(); // initialize the lcd
  lcd.backlight();

}


void loop() {

  unsigned long currentMillis = millis();

  int temperature = 0;
  int humidity = 0;

  // Attempt to read the temperature and humidity values from the DHT11 sensor.
  int result = dht11.readTemperatureHumidity(temperature, humidity);

  // Check the results of the readings.
  // If the reading is successful, print the temperature and humidity values.
  // If there are errors, print the appropriate error messages.
  if (result == 0) {
    Serial.print("Temperature: ");
    Serial.print(temperature);
    Serial.print(" °C\tHumidity: ");
    Serial.print(humidity);
    Serial.println(" %");
    value1 = temperature;
    value2 = humidity;
  } else {
    // Print error message based on the error code.
    Serial.println(DHT11::getErrorString(result));
  }

  //LCD displays humidity and temperature
  lcd.clear();
  // check whether the reading is successful or not
  if (isnan(temperature) || isnan(humidity)) {
    lcd.setCursor(0, 0);
    lcd.print("Failed");
  } else {
    lcd.setCursor(0, 0);  // display position
    lcd.print("Temp: ");
    lcd.print(temperature);     // display the temperature
    //lcd.print("°C");
    lcd.print((char)223);


    lcd.setCursor(0, 1);  // display position
    lcd.print("Humi: ");
    lcd.print(humidity);      // display the humidity
    lcd.print("%");
  }

  // Move the servo motor based on humidity
  if (humidity >= 60) {
    for (int pos = 0; pos <= 90; pos += 1) {  // goes from 0 degrees to 90 degrees
      // in steps of 1 degree
      myservo.write(pos);  // tell servo to go to position in variable 'pos'
      delay(50);           // waits 15ms for the servo to reach the position
    }
    if (humidity <= 58) {
      for (int pos = 90; pos >= 0; pos -= 1) {  // goes from 90 degrees to 0 degrees
        myservo.write(pos);                     // tell servo to go to position in variable 'pos'
        delay(15);                              // waits 15ms for the servo to reach the position
      }
    }
  }
  //Turn LED on based on temperature. 18 - 23 = blue. 24 - 27 = Green. 28 - 31 = Red
  if (temperature >= 18 && temperature <= 23) {
    setLedsColor(0, 0, 255);
  } else if (temperature >= 24 && temperature <= 27) {
    setLedsColor(0, 255, 0);
  } else if (temperature >= 28 && temperature <= 31) {
    setLedsColor(255, 0, 0);
  } else {
    pixels.clear();
  }

  pixels.show();



  if (currentMillis - previousMillis >= 10000) {
    Serial.println("sending");
    // save the last time you blinked the LED
    previousMillis = currentMillis;
    sendDataToSheet();
  }
  delay(1000);
}

void setLedsColor(int R, int G, int B) {
  for (int i = 0; i < NUM_LEDS; i++) {
    pixels.setPixelColor(i, pixels.Color(R, G, B));
  }
}
void printData(int t, int h) {
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" °C\tHumidity: ");
  Serial.print(h);
  Serial.println(" %");
}
void sendDataToSheet(void) {
  String url = server + "/trigger/" + eventName + "/with/key/" + IFTTT_Key + "?value1=" + String((int)value1) + "&value2=" + String((int)value2) + "&value3=" + String((int)value3);
  Serial.println(url);
  //Start to send data to IFTTT
  HTTPClient http;
  Serial.print("[HTTP] begin...\n");
  http.begin(url);  //HTTP

  Serial.print("[HTTP] GET...\n");
  // start connection and send HTTP header
  int httpCode = http.GET();
  // httpCode will be negative on error
  if (httpCode > 0) {
    // HTTP header has been send and Server response header has been handled
    Serial.printf("[HTTP] GET... code: %d\n", httpCode);
    // file found at server
    if (httpCode == HTTP_CODE_OK) {
      String payload = http.getString();
      Serial.println(payload);
    }
  } else {
    Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
  }
  http.end();
}