// Learn about the ESP32 WiFi simulation in
// https://docs.wokwi.com/guides/esp32-wifi

#include <WiFi.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <ESP32_MailClient.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* apiKey = "bfa0847748cb48868c172843232809";


// for thingspeak
const char* thingspeakApiKey = "ZCGU0KDY11YCGHKQ";

float temperatureCondition=0;


LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 20, 4);

#define LED_PIN 23 
const int relayPin = 19;
#define emailSenderAccount   "[email protected]"
#define emailSenderPassword  "tnma juwe nxxo tlym"
#define emailRecipient  "[email protected]"
#define smtpServer      "74.125.143.108" 
#define emailSubject  "Current weather"
#define smtpServerPort  465
SMTPData smtpData;
void sendMail(){
  Serial.println("Co vo gui mail r ma ko gui duoc");
  smtpData.setLogin(smtpServer, smtpServerPort, emailSenderAccount, emailSenderPassword);
  smtpData.setSender("NodeWifi32", emailSenderAccount);
  smtpData.setPriority("Rain");
  smtpData.setSubject(emailSubject);
  smtpData.setMessage("Thong bao thoi tiet hien tai dang mua", true);
  smtpData.addRecipient(emailRecipient);
  if (!MailClient.sendMail(smtpData)) {
    Serial.println("Error sending Email: " + MailClient.smtpErrorReason());
  }
  smtpData.empty();
}

void sendDataToThingspeak(float field1Value, float field2Value, float field3Value) {

  String url = "https://api.thingspeak.com/update?api_key=" + String(thingspeakApiKey) +
               "&field1=" + String(field1Value) +
               "&field2=" + String(field2Value) +
               "&field3=" + String(field3Value);
  HTTPClient http;
  http.begin(url);

  int httpCode = http.GET();
  if (httpCode == HTTP_CODE_OK) {
    Serial.println("Data sent  successfully");
  } else {
    Serial.println("Error sending data");
  }

  http.end();
}


void printWeatherAnGiang() {
  String url = "http://api.weatherapi.com/v1/forecast.json?key=" + String(apiKey) + "&q=Long%20Xuyen";
  HTTPClient http;

  http.begin(url);
  Serial.println(url);
  int httpCode = http.GET();
  if (httpCode == HTTP_CODE_OK) {

      String payload = http.getString();
      DynamicJsonDocument doc(1024);
      deserializeJson(doc, payload);
      const char* weatherCondition = doc["current"]["condition"]["text"];
      temperatureCondition = doc["current"]["temp_c"];
      int weatherCode = doc["current"]["condition"]["code"];
      float humidity = doc["current"]["humidity"];
      float precipitation = doc["current"]["precip_mm"];
      Serial.print("Tình trạng thời tiết: ");
      Serial.println(weatherCondition);
      Serial.print("Tình trạng thời tiết: ");
      Serial.println(weatherCode);
      Serial.print("Nhiệt độ hiện tại: ");
      Serial.print(temperatureCondition);
      Serial.print(" độ C");
      Serial.print("humidity hiện tại: ");
      Serial.print(humidity);
      Serial.print("precipitation hiện tại: ");
      Serial.print(precipitation);
      LCD.setCursor(0, 0);
      LCD.println(weatherCondition);
    
      LCD.setCursor(0, 1);
      LCD.println(temperatureCondition);

        if (temperatureCondition >= 30 ){
           Serial.print(">= 30");
           digitalWrite( relayPin, LOW); // đỏ ( bơm vào)
        }else if(weatherCode >= 1063) {//1063
          Serial.print("có mưa");
           digitalWrite( relayPin, HIGH); // xanh lá (bơm ra)
           sendMail();
        } else {
           
            Serial.print("Không có mưa và bé hơn 30%"); // đỏ ( bơm vào)
        }
        sendDataToThingspeak(temperatureCondition,humidity,precipitation);
  } else {
      Serial.println("HTTP Error Code: " + String(httpCode));
  }

}
void setup() {
  Serial.begin(115200);
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");
  pinMode(relayPin,OUTPUT);

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
   
  }
  LCD.clear();
 
}

void loop() {
  printWeatherAnGiang();
  delay(300000); 
}