#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <uri/UriBraces.h>
#include "DHTesp.h"
#include <HTTPClient.h>

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD "" 
#define WIFI_CHANNEL 6

WebServer server(80);

const int PINO_DHT = 15;

String temperatura = "0";
String umidade = "0";
String token = "";

DHTesp sensorDHT;

void setup(void) {
  Serial.begin(115200);
  // Configuração do sensor DHT
  sensorDHT.setup(PINO_DHT, DHTesp::DHT22);

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD, WIFI_CHANNEL);
  Serial.print("Conectando ao WiFi ");
  Serial.print(WIFI_SSID);
  
  // Aguardar a conexão WiFi
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Conectado!");

  Serial.print("Endereço IP: ");
  Serial.println(WiFi.localIP());

  server.begin();
  Serial.println("Servidor HTTP iniciado");

  // Autenticar e obter o token
  autenticar();
}

void autenticar() {
  HTTPClient http;

  // URL de login
  String serverName = "https://web2-n2.onrender.com/logar";
  
  // Preparar o corpo da requisição
  String payload = "{\"email\": \"[email protected]\", \"senha\": \"davi123\"}";

  // Iniciar requisição POST
  http.begin(serverName);
  http.addHeader("Content-Type", "application/json");
  int httpCode = http.POST(payload);

  Serial.println(httpCode);
  String response = "{}";
  if (httpCode > 0) {
    response = http.getString();
    // Extrair o token do JSON da resposta
    int tokenIndex = response.indexOf("token");
    if (tokenIndex > 0) {
      token = response.substring(response.indexOf(":") + 2, response.lastIndexOf("\""));
      Serial.println("Token recebido: " + token);
    }
  }
  
  http.end();
}

void loop(void) {  
  TempAndHumidity dados = sensorDHT.getTempAndHumidity();
  temperatura = String(dados.temperature, 2);
  Serial.println(temperatura);
  umidade = String(dados.humidity, 1);

  if (WiFi.status() == WL_CONNECTED && token != "") {
    WiFiClient client;
    HTTPClient http;

    // URL para enviar a temperatura
    String serverName = "https://web2-n2.onrender.com/laboratorio/temperaturaAtual";

    // Preparar o corpo da requisição
    String payload = "{\"temperatura\": \"" + temperatura + "\"}";

    // Iniciar requisição POST com token no cabeçalho
    http.begin(serverName);
    http.addHeader("Content-Type", "application/json");
    http.addHeader("Authorization", "Bearer " + token);

    int httpCode = http.POST(payload);

    Serial.println(httpCode);
    Serial.printf(http.errorToString(httpCode).c_str());

    String response = "{}"; 
    if (httpCode > 0) {
      response = http.getString();
    }
    Serial.println(response);

    http.end();
  }

  delay(5000);
}