#include "http.h"

#include <ArduinoJson.h>

#include "audio.h"
#include "ESPAsyncWebServer.h"
#include "player.h"

AsyncWebServer server(80);

AsyncWebSocket ws("/ws");

void onWebSocketEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, const AwsEventType type, void *arg, const uint8_t *data, const size_t len) {
  if (type == WS_EVT_CONNECT) {
    Serial.printf("[WEBSOCKET] Connected: %s\n", client->remoteIP().toString().c_str());
    client->text(stateBuffer);
  } else if (type == WS_EVT_DISCONNECT) {
    Serial.printf("[WEBSOCKET] Disconnected: %s\n", client->remoteIP().toString().c_str());
  }
}

void httpSetup() {
  Serial.println("Starting HTTP server");
  DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", "*");
  server.onNotFound([](AsyncWebServerRequest *request) {
    const auto path = request->url();
    if (path.endsWith("/") && path.length() > 1) {
      request->redirect(path.substring(0, path.length() - 1));
    } else {
      request->send(404, "text/plain", "Not Found");
    }
  });
  server.on("/state", [](AsyncWebServerRequest *request) {
    request->send(200, "application/json", stateBuffer);
  });
  server.on("/stop", [](AsyncWebServerRequest *request) {
    playerState = PLAYER_STOP;
    request->send(200);
  });
  server.on("/play", [](AsyncWebServerRequest *request) {
    playerState = PLAYER_PLAY;
    request->send(200);
  });
  server.on("/pause", [](AsyncWebServerRequest *request) {
    playerState = PLAYER_PAUSE;
    request->send(200);
  });
  server.on("/mute", [](AsyncWebServerRequest *request) {
    audioMute = true;
    request->send(200);
  });
  server.on("/unmute", [](AsyncWebServerRequest *request) {
    audioMute = false;
    request->send(200);
  });
  server.on("/up", [](AsyncWebServerRequest *request) {
    audioVolume = max(0.0f, min(audioVolume + 0.05f, 1.0f));
    request->send(200);
  });
  server.on("/down", [](AsyncWebServerRequest *request) {
    audioVolume = max(0.0f, min(audioVolume - 0.05f, 1.0f));
    request->send(200);
  });
  server.on("/next", [](AsyncWebServerRequest *request) {
    playerSkip += 1;
    request->send(200);
  });
  server.on("/back", [](AsyncWebServerRequest *request) {
    playerSkip -= 1;
    request->send(200);
  });
  ws.onEvent(onWebSocketEvent);
  server.addHandler(&ws);
  server.begin();
}

void httpLoop() {
  ws.cleanupClients();
}

void websocketSendAll() {
  ws.textAll(stateBuffer);
}