#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>

HTTPClient http;
WiFiClient wifiClient;

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);

Serial.print("connecting to WIFI");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while(WiFi.status() != WL_CONNECTED){
    delay(100);
    Serial.print(".");
  }
  Serial.println("  Connected!");
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(2000);
  display.clearDisplay();

  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);

  display.println("¡Bienvenido!");
  display.display(); 

  
}

void loop() {
  if ((WiFi.status() == WL_CONNECTED)) {
    HTTPClient http;
    displayReset();
    display.println("Obteniendo datos...");
    display.display();
    Serial.print("Obteniendo datos...");

    http.begin("https://api.openweathermap.org/data/2.5/weather?id=4005539&appid=fa0440d454271f49d241eff19f0f2515");
    int httpCode = http.GET();

    if (httpCode > 0) {
      display.println("");
      display.println("Datos obtenidos...");
      Serial.println("Datos obtenidos...\n");

      String payload = http.getString();

      // Parse JSON
      DynamicJsonDocument doc(1024);
      deserializeJson(doc, payload);

      // Extracting data
      const char* city = doc["name"];
      double temperature = doc["main"]["temp"];
      double lon = doc["coord"]["lon"];
      double lat = doc["coord"]["lat"];
      long timestamp = doc["dt"];

      char dateString[20];
      char timeString[20];
      time_t rawtime = timestamp;
      struct tm* timeinfo = localtime(&rawtime);
      strftime(dateString, sizeof(dateString), "%Y-%m-%d", timeinfo);
      strftime(timeString, sizeof(timeString), "%H:%M:%S", timeinfo);

      double temperatureC = temperature - 273.15;

      displayReset();
      display.println("Ciudad: " + String(city));
      display.println("Fecha: " + String(dateString));
      display.println("Hora: " + String(timeString));
      display.println("Temp: " + String(temperatureC, 2) + " C");
      display.println("Lat: " + String(lat, 4));
      display.println("Long: " + String(lon, 4));
      display.display();

      Serial.println("Ciudad: " + String(city));
      Serial.println("Fecha: " + String(dateString));
      Serial.println("Hora: " + String(timeString));
      Serial.println("Temp: " + String(temperatureC, 2) + " C");
      Serial.println("Lat: " + String(lat, 4));
      Serial.println("Long: " + String(lon, 4));


    } else {
      Serial.println("Error al obtener los datos.");
    }

    http.end();
  }
  delay(200000);
}


void displayReset()
{
  display.clearDisplay();
  display.setCursor(0, 0);
}