import puppeteer from "puppeteer-extra";
import StealthPlugin from "puppeteer-extra-plugin-stealth";
import { Client as DiscordClient } from "discord.js-selfbot-v13";
import express from "express";
import session from "express-session";
import path from "path";
import { fileURLToPath, pathToFileURL } from "url";
import { WebSocketServer } from "ws";
import authRouter from "./src/routes/authRoutes.js";
import fs from "fs";

// --- CONFIGURATION ---
const {
  USER_TOKEN,
  BOT_CLIENT_ID,
  BOT_CLIENT_SECRET,
  BOT_REDIRECT_URI,
  COOKIE_SECRET,
} = process.env;
const WEB_PORT = 3000;
const ADMIN_USER_IDS = ["339753362297847810"];
const MAX_LOG_SIZE = 20;

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

// --- IN-MEMORY STATE ---
const activityLog = [];
const actionsLog = [];

// --- WEB SERVER SETUP ---
const app = express();

// Make config and data available to routers/controllers via app.locals
app.locals.config = {
  BOT_CLIENT_ID,
  BOT_CLIENT_SECRET,
  BOT_REDIRECT_URI,
  ADMIN_USER_IDS,
};
app.locals.data = {
  activityLog,
  actionsLog,
};

app.set("view engine", "ejs");
app.set("views", path.join(__dirname, "views"));
app.set("trust proxy", 1); // Required for secure cookies if behind a proxy

app.use(
  session({
    secret: COOKIE_SECRET || "a-very-secret-string-for-teto-is-required",
    resave: false,
    saveUninitialized: false,
    cookie: {
      secure: process.env.NODE_ENV === "production",
      httpOnly: true,
      sameSite: "lax",
    },
  }),
);

// --- STATIC ASSETS & ROUTES ---
app.use(express.static(path.join(__dirname, "public")));
app.use("/", authRouter);

// --- DISCORD BOT & SERVER INITIALIZATION ---
(async () => {
  // Puppeteer setup (currently optional)
  puppeteer.use(StealthPlugin());
  /*
    const browser = await puppeteer.launch({ headless: false });
    // ... more puppeteer logic if needed
    */

  // Start the web server AND capture the HTTP server instance it creates
  const server = app.listen(WEB_PORT, () => {
    console.log(`Dashboard server running on http://localhost:${WEB_PORT}`);
  });

  // Create the WebSocket server and attach it to our existing HTTP server
  const wss = new WebSocketServer({ server });

  // Function to broadcast data to all connected WebSocket clients
  const broadcast = (data) => {
    // The 'wss.clients' property is a Set of all connected clients
    wss.clients.forEach((client) => {
      // Check if the connection is still open before sending
      if (client.readyState === client.OPEN) {
        // WebSocket only sends strings, so we stringify our object
        client.send(JSON.stringify(data));
      }
    });
  };

  const logItem = (logArray, item) => {
    logArray.unshift(item);
    if (logArray.length > MAX_LOG_SIZE) logArray.pop();

    if (logArray === activityLog) {
      broadcast({ type: "activityLogUpdate", payload: item });
    }
  };

  wss.on("connection", (ws) => {
    console.log("Dashboard client connected via WebSocket.");
    ws.on("close", () => {
      console.log("Dashboard client disconnected.");
    });
  });

  const client = new DiscordClient({ checkUpdate: false });

  // --- DYNAMIC EVENT HANDLER LOADING ---
  const eventsPath = path.join(__dirname, "src", "events");
  const eventFiles = fs
    .readdirSync(eventsPath)
    .filter((file) => file.endsWith(".js"));

  const context = {
    client,
    logItem,
    activityLog,
    actionsLog,
    MAX_LOG_SIZE,
  };

  for (const file of eventFiles) {
    const filePath = path.join(eventsPath, file);
    const event = (await import(pathToFileURL(filePath))).default;

    if (event.name && event.execute) {
      if (event.once) {
        client.once(event.name, (...args) => event.execute(context, ...args));
      } else {
        client.on(event.name, (...args) => event.execute(context, ...args));
      }
    }
  }
  // End dynamic event handler loading

  try {
    await client.login(USER_TOKEN);
  } catch (error) {
    console.error("Failed to login to Discord. Check your USER_TOKEN.", error);
    process.exit(1);
  }
})();