#include <WiFi.h>
#include <WiFi.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

int valve = 18;

const char* ssid     = "YehiaEssa";
const char* password = "MONAmona1960";

WiFiServer server(80);

int led = 2;
int rain = 34;
int rainSensorValue;

int moistureSensor = 35;
int moistureSensorValue;
int moistureSensorPrecentageValue;

int wifi_status;


void setup()
{
  pinMode(led,OUTPUT);
  pinMode(rain, INPUT);
  pinMode(moistureSensor, INPUT);
  pinMode(valve, OUTPUT);

  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.println("Irrigation");
  LCD.setCursor(0, 1);
  LCD.println("ok4...");
  
  Serial.begin(115200);
  delay(10);
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  // WiFi.begin(ssid, password);
  WiFi.begin("Wokwi-GUEST", "", 6);

  while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  Serial.println(WiFi.macAddress());
  server.begin();
  
}



void loop(){
  irrigation_system();
  WiFiClient client = server.available();   // listen for incoming clients
  if (client) {                             // if you get a client,
    Serial.println("New Client.");           // print a message out the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
    while (client.connected()) {            // loop while the client's connected
      if (client.available()) {             // if there's bytes to read from the client,
        char c = client.read();             // read a byte, then
        Serial.write(c);                    // print it out the serial monitor
        if (c == '\n') {                    // if the byte is a newline character
          if (currentLine.length() == 0) {
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println();
            client.print("Click <a href=\"/H\">here</a>Turn ON the system<br>");
            client.print("Click <a href=\"/L\">here</a>Turn OFF the system<br>");
            client.println();
            break;
          } else {
            currentLine = "";
          }
        } else if (c != '\r') {
          currentLine += c; 
        }

        // Check to see if the client request was "GET /H" or "GET /L":
        if (currentLine.endsWith("GET /H")) {
          Serial.println(currentLine);
          digitalWrite(led, HIGH);               // GET /H turns the LED on
          wifi_status = 1;
        }
        if (currentLine.endsWith("GET /L")) {
          digitalWrite(led, LOW);                // GET /L turns the LED off
          wifi_status = 0; 
        }
      }

    }
    // close the connection:
    client.stop();
    Serial.println("Client Disconnected.");
  }
}

void irrigation_system(){
  rainSensorValue = digitalRead(rain);
  moistureSensorValue = analogRead(moistureSensor);
  moistureSensorPrecentageValue = map(moistureSensorValue, 0, 4095, 0, 100);

  LCD.clear();
  LCD.setCursor(0,0);
  LCD.print("Moisture level:");
  LCD.setCursor(0,1);
  LCD.print(String(moistureSensorPrecentageValue)+" %");


  if((rainSensorValue == 1) | (moistureSensorPrecentageValue > 66) | (wifi_status == 1)){
    LCD.clear();
    LCD.setCursor(0,0);
    LCD.print("Low:" + String(moistureSensorPrecentageValue) + "%");
    LCD.setCursor(0,1);
    LCD.print("Valve Closing");
    digitalWrite(valve, LOW); 
    LCD.setCursor(0,1);
    LCD.print("Valve Closed");
    delay(300);
  }
  

  else if((rainSensorValue == 0) | (moistureSensorPrecentageValue < 65)| (wifi_status == 0)){
    LCD.clear();
    LCD.setCursor(0,0);
    LCD.print("Low:" + String(moistureSensorPrecentageValue) + "%");
    LCD.setCursor(0,1);
    LCD.print("Valve Opening");
    digitalWrite(valve, HIGH); 
    LCD.setCursor(0,1);
    LCD.print("Valve opened");
    delay(300);
  }

  //  if((moistureSensorPrecentageValue > 66) ){
  //   LCD.clear();
  //   LCD.setCursor(0,0);
  //   LCD.print("Low:" + String(moistureSensorPrecentageValue) + "%");
  //   LCD.setCursor(0,1);
  //   LCD.print("Valve Closing");
  //   digitalWrite(valve, LOW); 
  //   LCD.setCursor(0,1);
  //   LCD.print("Valve Closed");
  //   delay(300);
  // }

   

  // else if((moistureSensorPrecentageValue >= 66) | (rainSensorValue == 1 )){
  //   LCD.clear();
  //   LCD.setCursor(0,0);
  //   LCD.print("High:" + String(moistureSensorPrecentageValue) + "%");
  //   LCD.setCursor(0,1);
  //   LCD.print("Valve Closing");
  //   digitalWrite(valve, HIGH); 
  //   LCD.setCursor(0,1);
  //   LCD.print("Valve Closed");
  //   delay(300);
  //   }
  // delay(300);
}