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

// Wi-Fi credentials for Wokwi
const char* ssid = "Wokwi-GUEST";
const char* password = "";

// Webhook URL (use HTTP for Wokwi simulation)
const char* serverURL = "http://webhook.site/e5ff4158-492b-487a-ad12-023cf99fcb15";

// Potentiometer pins
#define TEMP_PIN 32
#define SOIL_PIN 34
#define PH_PIN 35

// Function to map ADC to percentage
float adcToPercent(int adcValue) {
  return map(adcValue, 0, 4095, 0, 100);
}

// Function to map ADC to pH scale
float adcToPH(int adcValue) {
  return (adcValue / 4095.0) * 14.0;
}

// Function to map ADC to temperature range (10°C - 40°C)
float adcToTemp(int adcValue) {
  return map(adcValue, 0, 4095, 10, 40);
}

// Thresholds
const float MOISTURE_LOW = 30;
const float MOISTURE_HIGH = 70;
const float PH_LOW = 5.5;
const float PH_HIGH = 7.5;
const float TEMP_LOW = 15;
const float TEMP_HIGH = 35;

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

  WiFi.begin(ssid, password);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nConnected to Wi-Fi!");
}

void loop() {
  // Read sensors (potentiometers)
  int tempADC = analogRead(TEMP_PIN);
  int soilADC = analogRead(SOIL_PIN);
  int phADC = analogRead(PH_PIN);

  float temperature = adcToTemp(tempADC);
  float soilMoisturePercent = adcToPercent(soilADC);
  float soilPH = adcToPH(phADC);

  // Farmer-friendly short messages
  String moistureStatus = "";
  if (soilMoisturePercent < MOISTURE_LOW) moistureStatus = "Dry";
  else if (soilMoisturePercent <= MOISTURE_HIGH) moistureStatus = "Perfect";
  else moistureStatus = "Too Wet";

  String phStatus = "";
  if (soilPH < PH_LOW) phStatus = "Acidic";
  else if (soilPH <= PH_HIGH) phStatus = "Perfect";
  else phStatus = "Basic";

  String tempStatus = "";
  if (temperature < TEMP_LOW) tempStatus = "Cold";
  else if (temperature <= TEMP_HIGH) tempStatus = "Perfect";
  else tempStatus = "Hot";

  // Print values and status
  Serial.print("Temperature: "); Serial.print(temperature); Serial.print(" °C | "); 
  Serial.print(tempStatus); Serial.print(" | ");

  Serial.print("Soil Moisture: "); Serial.print(soilMoisturePercent); Serial.print(" % | "); 
  Serial.print(moistureStatus); Serial.print(" | ");

  Serial.print("Soil pH: "); Serial.print(soilPH, 2); 
  Serial.print(" | "); Serial.println(phStatus);

  // Send data and status to webhook
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String url = String(serverURL) + "?temp=" + String(temperature) +
                 "&tempStatus=" + tempStatus +
                 "&soil=" + String(soilMoisturePercent) +
                 "&soilStatus=" + moistureStatus +
                 "&ph=" + String(soilPH, 2) +
                 "&phStatus=" + phStatus;

    Serial.println("Sending to webhook:");
    Serial.println(url);

    http.begin(url.c_str());
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      Serial.print("Server Response: "); Serial.println(httpResponseCode);
    } else {
      Serial.print("Error sending: "); Serial.println(httpResponseCode);
    }
    http.end();
  }

  delay(10000); // Send every 10 seconds
}