#include <WiFi.h>
#include <HTTPClient.h>
#include <MD_MAX72xx.h> // Include the MD_MAX72XX library

// Replace with your network credentials
const char* ssid = "GURITA5G";
const char* password = "88888888";

// Replace with your Laravel API URL
const char* serverName = "https://tambal.in/esp32.php";

// MAX7219 configuration
#define MAX_DEVICES 4    // Number of MAX7219 devices
#define CS_PIN 5         // CS pin connected to MAX7219

// Create an instance of the MD_MAX72XX library
MD_MAX72XX matrix = MD_MAX72XX(CS_PIN, MAX_DEVICES);

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

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

  // Initialize MAX7219 matrix
  matrix.begin();
  matrix.setIntensity(0); // Set brightness (0-15)
  matrix.setRotation(0, 1); // Adjust rotation as needed
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;

    http.begin(serverName);
    int httpResponseCode = http.GET();

    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println(httpResponseCode);
      Serial.println(response);

      // Parse JSON response
      int priceIndex = response.indexOf("price");
      String priceString = response.substring(priceIndex + 7, response.indexOf("}", priceIndex));
      float price = priceString.toFloat();

      // Display price on MAX7219 matrix
      displayPrice(price);

    } else {
      Serial.print("Error on HTTP request: ");
      Serial.println(httpResponseCode);
    }

    http.end();
  } else {
    Serial.println("WiFi Disconnected");
  }

  delay(60000); // Fetch data every 60 seconds
}

void displayPrice(float price) {
  String priceString = String(price, 2);

  matrix.clear(); // Clear the display
  matrix.setCursor(0, 0);
  matrix.print(priceString);
  matrix.write(); // Write the buffer to the displays
}