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

#include <DHT.h>
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

// const char *ssid = "gta";
// const char *password = "gta123@";

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

const char *serverUrl = "https://2b7c2c09-9609-409c-99e5-457a71ebfbd5-00-155xe4qkgewzo.sisko.replit.dev/";
// const char *userName = "atharva";
// const char *apiKey = "qx3w49r3-kifh-ix9z-04lr-mz1y4bpl8rer";


//Edge computing
#define MoisensorPin 33
int MoisensorValue = 0;  
int limit = 55; 


#define N_Pin 34
#define P_Pin 35
#define K_Pin 32

#define pump_pin 13
#define ph_pin 25


// http://127.0.0.1:5000/sensorvalue?
// a_id=acc1243&sm=81&ps=0&N=45&P=78&K=90&temp=28&hum=89&ph=5.5

// Variables for route
String a_id = "acc1234";

int pump = 0;

int N_val = 0;
int P_val = 0;
int K_val = 0;

float temp = 0.0;
float hum= 0.0;

float pH_val= 0.0;



void setup() {
  Serial.begin(115200);

  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  // pin declaration
  dht.begin();

  pinMode(pump_pin, OUTPUT);  digitalWrite(pump_pin, LOW);

  delay(2000);

  // Make GET request
  // makeGetRequest();
}

void makeGetRequest() {
  HTTPClient http;
  
  String url = String(serverUrl) + 
              "sensorvalue?a_id=" + a_id + 
              "&sm="+ String(MoisensorValue) + 
              "&ps=" + String(pump) + 
              "&N=" + String(N_val) + 
              "&P=" + String(P_val) + 
              "&K=" + String(K_val) + 
              "&temp=" + String(temp) + 
              "&hum=" + String(hum) + 
              "&ph=" + String(pH_val);


  Serial.println("Sending GET request to: " + url);

  http.begin(url);

  int httpCode = http.GET();
  if (httpCode > 0) {
    Serial.printf("HTTP response code: %d\n", httpCode);
    String payload = http.getString();
    Serial.println("Server response: " + payload);
  } else {
    Serial.printf("HTTP request failed, error: %s\n", http.errorToString(httpCode).c_str());
  }

  http.end();
}

void loop() {
 //Read Soil moisture Sensor value
  MoisensorValue = analogRead(MoisensorPin);                      //sprintf(buffer, "Soil Moisture Raw: %d", MoisensorValue);Serial.println(buffer);
  MoisensorValue = map(MoisensorValue, 0, 4095, 0, 100);          // 0 to 100%
  MoisensorValue = 100 - MoisensorValue;                      // inverse the value
  
  // Nitrogen (N): 20 to 200 parts per million (ppm)
  // Phosphorus (P): 10 to 50 ppm
  // Potassium (K): 100 to 400 ppm

  //N Sensor value
  N_val = analogRead(N_Pin);   N_val = map(N_val, 0, 4095, 20, 200);          // 0 to 100%
  
  //P Sensor value
  P_val = analogRead(P_Pin);   P_val = map(P_val, 0, 4095, 10, 50);          // 0 to 100%
  
  //K Sensor value
  K_val = analogRead(K_Pin);   K_val = map(K_val, 0, 4095, 100, 400);          // 0 to 100%
  
  //pH Sensor value
  pH_val = analogRead(ph_pin);   pH_val = map(pH_val, 0, 4095, 0, 14);          // 0 to 100%
  
  //controll Pump 
  if (MoisensorValue<limit){digitalWrite(pump_pin, LOW);   pump = 1;   }
  else {                    digitalWrite(pump_pin, HIGH);  pump = 0;   }


  temp = dht.readTemperature();
  hum = dht.readHumidity();
  
  Serial.print("weather   ");
  if (isnan(temp) || isnan(hum)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  String message = "temp:  " + String(temp) + "    humidity:  " + String(hum);
  Serial.println(message);

  makeGetRequest();


  // delay(40000); //40sec
  delay(10000); //60sec
  
}