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import { serve } from "bun";
import { handleWebSocketConnection } from "./websocket";
import { router } from "./router";

const PORT = process.env.PORT || 7860;

export const server = serve({
  port: PORT,
  async fetch(req, server) {
    const url = new URL(req.url);

    if (url.pathname === "/ws") {
      const upgraded = server.upgrade(req);
      if (!upgraded) {
        return new Response("WebSocket upgrade failed", { status: 400 });
      }
      return undefined;
    }

    return await router(req);
  },
  websocket: {
    open(ws) {
      console.log("[WebSocket] Client connected");
      handleWebSocketConnection(ws);
    },
    message(ws: any, message) {
      try {
        const data = JSON.parse(message.toString());
        ws.data?.handleMessage?.(data);
      } catch (error) {
        console.error("[WebSocket] Error parsing message:", error);
      }
    },
    close(ws: any) {
      console.log("[WebSocket] Client disconnected");
      ws.data?.cleanup?.();
    },
  },
});

console.log(`Server running on http://localhost:${PORT}`);
console.log(`WebSocket available at ws://localhost:${PORT}/ws`);