#include <Arduino.h>
#include <WiFi.h>
#include <WebServer.h>
#include "Audio.h"

const char* ssid     = "SmartEstancia";
const char* password = "Smart12345";

IPAddress local_IP(192, 168, 1, 77);
IPAddress gateway(192, 168, 1, 254);
IPAddress subnet(255, 255, 255, 0);
IPAddress primaryDNS(8, 8, 8, 8);
IPAddress secondaryDNS(8, 8, 4, 4);

#define I2S_BCLK  26
#define I2S_LRC   25
#define I2S_DOUT  33

Audio audio;
WebServer server(80);

void handlePlay() {
  if (server.hasArg("url")) {
    String url = server.arg("url");
    Serial.print("🎵 Python ordenó reproducir: ");
    Serial.println(url);
    audio.stopSong();
    audio.connecttohost(url.c_str());
    server.send(200, "text/plain", "Reproduciendo OK");
  } else {
    server.send(400, "text/plain", "Error: Falta la URL");
  }
}

// --- NUEVO: Control de Volumen ---
void handleVolume() {
  if (server.hasArg("level")) {
    int nivel = server.arg("level").toInt();
    if (nivel >= 0 && nivel <= 21) {
      audio.setVolume(nivel);
      Serial.print("🔊 Volumen cambiado a: ");
      Serial.println(nivel);
      server.send(200, "text/plain", "Volumen OK: " + String(nivel));
    } else {
      server.send(400, "text/plain", "Error: Nivel debe ser 0-21");
    }
  } else {
    server.send(400, "text/plain", "Error: Falta parametro 'level'");
  }
}

void handleVolumeUp() {
  int actual = audio.getVolume();
  if (actual < 21) audio.setVolume(actual + 1);
  server.send(200, "text/plain", "Volumen: " + String(audio.getVolume()));
}

void handleVolumeDown() {
  int actual = audio.getVolume();
  if (actual > 0) audio.setVolume(actual - 1);
  server.send(200, "text/plain", "Volumen: " + String(audio.getVolume()));
}

void setup() {
  Serial.begin(115200);
  Serial.println("\n--- INICIANDO SISTEMA DE AUDIO ESP32 ---");

  if (!WiFi.config(local_IP, gateway, subnet, primaryDNS, secondaryDNS)) {
    Serial.println("Fallo al configurar la IP Estatica");
  }

  WiFi.begin(ssid, password);
  Serial.print("Conectando a WiFi");
  
  int intento = 0;
  while (WiFi.status() != WL_CONNECTED && intento < 20) {
    delay(500);
    Serial.print(".");
    intento++;
  }

  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("\nFallo de conexion.");
    while(true){ delay(1000); }
  }

  Serial.println("\nWiFi Conectado!");
  Serial.print("IP FIJA: ");
  Serial.println(WiFi.localIP());

  audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
  audio.setVolume(15);  // Volumen inicial medio

  server.on("/play",        HTTP_GET, handlePlay);
  server.on("/volume",      HTTP_GET, handleVolume);
  server.on("/volume_up",   HTTP_GET, handleVolumeUp);
  server.on("/volume_down", HTTP_GET, handleVolumeDown);
  
  server.begin();
  Serial.println("Listo para recibir audio...");
}

void loop() {
  audio.loop();
  server.handleClient();

  if (Serial.available()) {
    String url = Serial.readStringUntil('\n');
    url.trim();
    if (url.length() > 5 && url.startsWith("http")) {
      audio.stopSong();
      audio.connecttohost(url.c_str());
    }
  }
}

void audio_info(const char *info){ Serial.print("INFO AUDIO: "); Serial.println(info); }
void audio_id3data(const char *info){ Serial.print("METADATOS: "); Serial.println(info); }
void audio_eof_mp3(const char *info){ Serial.print("FIN DEL AUDIO: "); Serial.println(info); }



""" 
#include <Arduino.h>
#include <WiFi.h>
#include <WebServer.h>
#include "Audio.h"

// =======================================================
// 1. CONFIGURACIÓN DE RED
// =======================================================
const char* ssid     = "SmartEstancia";
const char* password = "Smart12345";

// --- CONFIGURACIÓN DE IP ESTÁTICA ---
IPAddress local_IP(192, 168, 1, 77);   // La IP que le asiganamos a la bocina
IPAddress gateway(192, 168, 1, 254);    // la IP del router
IPAddress subnet(255, 255, 255, 0);   // Máscara de subred
IPAddress primaryDNS(8, 8, 8, 8);     // DNS primario (Google)
IPAddress secondaryDNS(8, 8, 4, 4);   // DNS secundario (Google)

// =======================================================
// 2. CONFIGURACIÓN DE PINES CORRECTOS
// =======================================================
#define I2S_BCLK  26  
#define I2S_LRC   25  
#define I2S_DOUT  33  

Audio audio;
WebServer server(80);

void handlePlay() {
  if (server.hasArg("url")) {
    String url = server.arg("url");
    Serial.print("🎵 Python ordenó reproducir: ");
    Serial.println(url);
    audio.stopSong();
    audio.connecttohost(url.c_str());
    server.send(200, "text/plain", "Reproduciendo OK");
  } else {
    server.send(400, "text/plain", "Error: Falta la URL");
  }
}

void setup() {
  Serial.begin(115200);
  Serial.println("\n--- INICIANDO SISTEMA DE AUDIO ESP32 ---");

  if (psramFound()) {
    Serial.println("PSRAM encontrada.");
  } else {
    Serial.println(" Sin PSRAM. Usando RAM interna.");
  }

  // ⚡ APLICAR IP ESTÁTICA ANTES DE CONECTAR
  if (!WiFi.config(local_IP, gateway, subnet, primaryDNS, secondaryDNS)) {
    Serial.println(" Fallo al configurar la IP Estática");
  }

  WiFi.begin(ssid, password);
  Serial.print("Conectando a WiFi");
  
  int intento = 0;
  while (WiFi.status() != WL_CONNECTED && intento < 20) {
    delay(500);
    Serial.print(".");
    intento++;
  }

  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("\n Fallo de conexión.");
    while(true){ delay(1000); } 
  } 

  Serial.println("\n WiFi Conectado de verdad!");
  Serial.print("Tu IP es FIJA: ");
  Serial.println(WiFi.localIP());

  audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
  audio.setVolume(18);

  server.on("/play", HTTP_GET, handlePlay);
  server.begin();
  Serial.println("Listo para recibir audio...");
}

void loop() {
  audio.loop();
  server.handleClient();

  if (Serial.available()) {
    String url = Serial.readStringUntil('\n');
    url.trim();
    if (url.length() > 5 && url.startsWith("http")) {
      audio.stopSong();
      audio.connecttohost(url.c_str());
    }
  }
}

void audio_info(const char *info){ Serial.print("INFO AUDIO: "); Serial.println(info); }
void audio_id3data(const char *info){ Serial.print("METADATOS: "); Serial.println(info); }
void audio_eof_mp3(const char *info){ Serial.print("FIN DEL AUDIO: "); Serial.println(info); }

"""