//https://www.arduino.cc/reference/en/libraries/wifi/
#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiAP.h>
/***************************************************************
              Definiciones
***************************************************************/
#define LED_BUILTIN 2 //Led interno de la placa ESP32 
const char *ssid = "ESP32_Julio_AP";
const char *password = "12345678";
/***************************************************************
              Variables
***************************************************************/
WiFiServer server(80);//Objeto servidor
/***************************************************************
              Funcion de configuración Setup
***************************************************************/
void setup() {
  Serial.begin(115200);
  pinMode(LED_BUILTIN, OUTPUT);
  Serial.begin(115200);
  /***************************************************************
              Configuración WiFi Modo Acces Point
  ***************************************************************/
  Serial.println();
  Serial.println("Configurando Acces Point...");
  if (!WiFi.softAP(ssid,password)) {
    log_e("Error de software fallo Acces Point.");
    while (true);
  }
  IPAddress Mi_IP = WiFi.softAPIP();
  Serial.print("Direccion IP del Acces Point: ");
  Serial.println(Mi_IP);
  server.begin();
  Serial.println("Servidor Inicializado");
}
/***************************************************************
              Ciclo Principal Loop
***************************************************************/
void loop() {
  WiFiClient client = server.available();
  if (client) {
    Serial.println("Nuevo Cliente ");
    String currentLine = "";
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.write(c);
        if (c == '\n') {
          if (currentLine.length() == 0) {
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");//Modo texto
            client.println();
            client.print("Click <a href=\"/H\">aqui</a> para ENCENDER el LED.<br>");
            client.print("Click <a href=\"/L\">aqui</a> para APAGAR el LED.<br>");
            client.println();
            break;
          } else {
            currentLine = "";
          }
        } else if (c != '\r') {
          currentLine += c;
        }
        if (currentLine.endsWith("GET /H")) {
          digitalWrite(LED_BUILTIN, HIGH);
        }
        if (currentLine.endsWith("GET /L")) {
          digitalWrite(LED_BUILTIN, LOW);
        }
      }
    }
    client.stop();
    Serial.println("Cliente Desconectado.");
  }
}