//Lauren Gabrielle Fogaça 202210184
//Henrique Scudeller de Oliveira 202210324
//Gabriel Martinelli Galvão Andreello Simoni 202210183
//Ricardo Altever Alves Lessa 202210295

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

// Configurações WiFi
const char* ssid = "Wokwi-GUEST";
const char* password = "";

// Configurações ThingSpeak
const char* server = "api.thingspeak.com";
String readApiKey = "A2N0T6LI9YJIWZNR"; // Substitua pelo seu Read API Key
String channelID = "2995170"; // Substitua pelo seu Channel ID

LiquidCrystal_I2C lcd(0x27, 16, 2);

// Variáveis para controle de tempo
unsigned long lastTime = 0;
unsigned long timerDelay = 30000; // 30 segundos

// Struct para armazenar dados dos sensores
struct SensorData {
  float tempC;
  float tempF;
  float distCm;
  float distInch;
  bool dataValid;
};

SensorData sensorData;

void setup() {
  lcd.init();
  lcd.backlight();

  // Conexão WiFi
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
  }

  // Inicializar estrutura de dados
  sensorData.dataValid = false;

  delay(1000);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print(" Escola de Eng. ");
  lcd.setCursor(0, 1);
  lcd.print(" de Piracicaba ");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("    Sistemas    ");
  lcd.setCursor(0, 1);
  lcd.print("   Embarcados   ");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("   Projeto 03   ");
  lcd.setCursor(0, 1);
  lcd.print("----------------");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("#  Consumidor  #");
  lcd.setCursor(0, 1);
  lcd.print("#  Subscriber  #");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Lauren Gabrielle");
  lcd.setCursor(0, 1);
  lcd.print("     Fogaca     ");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("  Henrique  S.  ");
  lcd.setCursor(0, 1);
  lcd.print("  de Oliveira  ");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Ricardo Altever");
  lcd.setCursor(0, 1);
  lcd.print("  Alves Lessa  ");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(" Gabriel M. G. ");
  lcd.setCursor(0, 1);
  lcd.print("   Andreello   ");
  delay(1000);
}

void loop() {
  if ((millis() - lastTime) > timerDelay) {
    // Buscar dados do ThingSpeak
    if (WiFi.status() == WL_CONNECTED) {
      fetchThingSpeakData();
    }

    lastTime = millis();
  }

  // Exibir dados no LCD
  if (sensorData.dataValid) {
    displayData();
  } else {
    delay(1000);
  }


}

void fetchThingSpeakData() {
  HTTPClient http;
  String url = "http://api.thingspeak.com/channels/" + channelID + "/feeds/last.json?api_key=" + readApiKey;

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

  if (httpResponseCode > 0) {
    String payload = http.getString();

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

    // Extrair dados
    if (doc.containsKey("field1")) {
      sensorData.tempC = doc["field1"].as<float>();
      sensorData.tempF = doc["field2"].as<float>();
      sensorData.distCm = doc["field3"].as<float>();
      sensorData.distInch = doc["field4"].as<float>();
      sensorData.dataValid = true;
    }
  } else {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Erro conexao!");
    lcd.setCursor(0, 1);
    lcd.print("Codigo: ");
    lcd.print(httpResponseCode);
    delay(1000);
  }

  http.end();
}

void displayData() {
  static int displayMode = 0;
  static unsigned long displayTimer = 0;

  if (millis() - displayTimer > 3000) { 
    displayMode++;
    if (displayMode > 3) displayMode = 0;
    displayTimer = millis();
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Recuperar  dados");
  lcd.setCursor(0, 1);
  lcd.print("   do  Bronken   ");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temperatura: ");
  lcd.setCursor(0, 1);
  lcd.print(sensorData.tempC, 1);
  lcd.print(" C");
  delay(1000);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temperatura: ");
  lcd.setCursor(0, 1);
  lcd.print(sensorData.tempF, 1);
  lcd.print("F");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Distancia: ");
  lcd.setCursor(0, 1);
  lcd.print(sensorData.distCm, 1);
  lcd.print("cm");
  delay(1000);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Distancia: ");
  lcd.setCursor(0, 1);
  lcd.print(sensorData.distInch, 1);
  lcd.print("pol");
  delay(30000);
}