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

const char* ssid = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";
const char* serverName = "http://10.35.15.230:5000/candidates";  // Replace with your PC IP

LiquidCrystal_I2C lcd(0x27, 16, 2);  // Use (0x27, 20, 4) if 20x4 LCD

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  lcd.begin();
  lcd.backlight();

  lcd.setCursor(0, 0);
  lcd.print("Connecting...");

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

  lcd.clear();
  lcd.print("WiFi Connected");
  delay(1000);
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(serverName);
    int httpCode = http.GET();

    if (httpCode == 200) {
      String payload = http.getString();
      Serial.println(payload);

      DynamicJsonDocument doc(1024);
      deserializeJson(doc, payload);

      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("1:");
      lcd.print(doc[0].as<String>());

      lcd.setCursor(0, 1);
      lcd.print("2:");
      lcd.print(doc[1].as<String>());

      // Add logic to scroll through all candidates if more than 2
    } else {
      lcd.clear();
      lcd.print("Error: ");
      lcd.print(httpCode);
    }

    http.end();
  }

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