refactor(swipe): split swipe screen modules

Move swipe screen logic into hooks/services and extract state-specific UI components to keep files small while preserving existing behavior. Reference: US-002
2026-11-02 02:19:43 +00:00 · 2026-01-25 21:05:54 +00:00
1 parent 209dc652d2
commit 8d4d9d8750
@@ -0,0 +1,287 @@
+import express, { type Express, type Request, type Response } from "express";
+import { chromium, type BrowserContext, type Page } from "playwright";
+import { mkdirSync } from "fs";
+import { join } from "path";
+import type { Socket } from "net";
+import type {
+  ServeOptions,
+  GetPageRequest,
+  GetPageResponse,
+  ListPagesResponse,
+  ServerInfoResponse,
+} from "./types";
+
+export type { ServeOptions, GetPageResponse, ListPagesResponse, ServerInfoResponse };
+
+export interface DevBrowserServer {
+  wsEndpoint: string;
+  port: number;
+  stop: () => Promise<void>;
+}
+
+// Helper to retry fetch with exponential backoff
+async function fetchWithRetry(
+  url: string,
+  maxRetries = 5,
+  delayMs = 500
+): Promise<globalThis.Response> {
+  let lastError: Error | null = null;
+  for (let i = 0; i < maxRetries; i++) {
+    try {
+      const res = await fetch(url);
+      if (res.ok) return res;
+      throw new Error(`HTTP ${res.status}: ${res.statusText}`);
+    } catch (err) {
+      lastError = err instanceof Error ? err : new Error(String(err));
+      if (i < maxRetries - 1) {
+        await new Promise((resolve) => setTimeout(resolve, delayMs * (i + 1)));
+      }
+    }
+  }
+  throw new Error(`Failed after ${maxRetries} retries: ${lastError?.message}`);
+}
+
+// Helper to add timeout to promises
+function withTimeout<T>(promise: Promise<T>, ms: number, message: string): Promise<T> {
+  return Promise.race([
+    promise,
+    new Promise<never>((_, reject) =>
+      setTimeout(() => reject(new Error(`Timeout: ${message}`)), ms)
+    ),
+  ]);
+}
+
+export async function serve(options: ServeOptions = {}): Promise<DevBrowserServer> {
+  const port = options.port ?? 9222;
+  const headless = options.headless ?? false;
+  const cdpPort = options.cdpPort ?? 9223;
+  const profileDir = options.profileDir;
+
+  // Validate port numbers
+  if (port < 1 || port > 65535) {
+    throw new Error(`Invalid port: ${port}. Must be between 1 and 65535`);
+  }
+  if (cdpPort < 1 || cdpPort > 65535) {
+    throw new Error(`Invalid cdpPort: ${cdpPort}. Must be between 1 and 65535`);
+  }
+  if (port === cdpPort) {
+    throw new Error("port and cdpPort must be different");
+  }
+
+  // Determine user data directory for persistent context
+  const userDataDir = profileDir
+    ? join(profileDir, "browser-data")
+    : join(process.cwd(), ".browser-data");
+
+  // Create directory if it doesn't exist
+  mkdirSync(userDataDir, { recursive: true });
+  console.log(`Using persistent browser profile: ${userDataDir}`);
+
+  console.log("Launching browser with persistent context...");
+
+  // Launch persistent context - this persists cookies, localStorage, cache, etc.
+  const context: BrowserContext = await chromium.launchPersistentContext(userDataDir, {
+    headless,
+    args: [`--remote-debugging-port=${cdpPort}`],
+  });
+  console.log("Browser launched with persistent profile...");
+
+  // Get the CDP WebSocket endpoint from Chrome's JSON API (with retry for slow startup)
+  const cdpResponse = await fetchWithRetry(`http://127.0.0.1:${cdpPort}/json/version`);
+  const cdpInfo = (await cdpResponse.json()) as { webSocketDebuggerUrl: string };
+  const wsEndpoint = cdpInfo.webSocketDebuggerUrl;
+  console.log(`CDP WebSocket endpoint: ${wsEndpoint}`);
+
+  // Registry entry type for page tracking
+  interface PageEntry {
+    page: Page;
+    targetId: string;
+  }
+
+  // Registry: name -> PageEntry
+  const registry = new Map<string, PageEntry>();
+
+  // Helper to get CDP targetId for a page
+  async function getTargetId(page: Page): Promise<string> {
+    const cdpSession = await context.newCDPSession(page);
+    try {
+      const { targetInfo } = await cdpSession.send("Target.getTargetInfo");
+      return targetInfo.targetId;
+    } finally {
+      await cdpSession.detach();
+    }
+  }
+
+  // Express server for page management
+  const app: Express = express();
+  app.use(express.json());
+
+  // GET / - server info
+  app.get("/", (_req: Request, res: Response) => {
+    const response: ServerInfoResponse = { wsEndpoint };
+    res.json(response);
+  });
+
+  // GET /pages - list all pages
+  app.get("/pages", (_req: Request, res: Response) => {
+    const response: ListPagesResponse = {
+      pages: Array.from(registry.keys()),
+    };
+    res.json(response);
+  });
+
+  // POST /pages - get or create page
+  app.post("/pages", async (req: Request, res: Response) => {
+    const body = req.body as GetPageRequest;
+    const { name, viewport } = body;
+
+    if (!name || typeof name !== "string") {
+      res.status(400).json({ error: "name is required and must be a string" });
+      return;
+    }
+
+    if (name.length === 0) {
+      res.status(400).json({ error: "name cannot be empty" });
+      return;
+    }
+
+    if (name.length > 256) {
+      res.status(400).json({ error: "name must be 256 characters or less" });
+      return;
+    }
+
+    // Check if page already exists
+    let entry = registry.get(name);
+    if (!entry) {
+      // Create new page in the persistent context (with timeout to prevent hangs)
+      const page = await withTimeout(context.newPage(), 30000, "Page creation timed out after 30s");
+
+      // Apply viewport if provided
+      if (viewport) {
+        await page.setViewportSize(viewport);
+      }
+
+      const targetId = await getTargetId(page);
+      entry = { page, targetId };
+      registry.set(name, entry);
+
+      // Clean up registry when page is closed (e.g., user clicks X)
+      page.on("close", () => {
+        registry.delete(name);
+      });
+    }
+
+    const response: GetPageResponse = { wsEndpoint, name, targetId: entry.targetId };
+    res.json(response);
+  });
+
+  // DELETE /pages/:name - close a page
+  app.delete("/pages/:name", async (req: Request<{ name: string }>, res: Response) => {
+    const name = decodeURIComponent(req.params.name);
+    const entry = registry.get(name);
+
+    if (entry) {
+      await entry.page.close();
+      registry.delete(name);
+      res.json({ success: true });
+      return;
+    }
+
+    res.status(404).json({ error: "page not found" });
+  });
+
+  // Start the server
+  const server = app.listen(port, () => {
+    console.log(`HTTP API server running on port ${port}`);
+  });
+
+  // Track active connections for clean shutdown
+  const connections = new Set<Socket>();
+  server.on("connection", (socket: Socket) => {
+    connections.add(socket);
+    socket.on("close", () => connections.delete(socket));
+  });
+
+  // Track if cleanup has been called to avoid double cleanup
+  let cleaningUp = false;
+
+  // Cleanup function
+  const cleanup = async () => {
+    if (cleaningUp) return;
+    cleaningUp = true;
+
+    console.log("\nShutting down...");
+
+    // Close all active HTTP connections
+    for (const socket of connections) {
+      socket.destroy();
+    }
+    connections.clear();
+
+    // Close all pages
+    for (const entry of registry.values()) {
+      try {
+        await entry.page.close();
+      } catch {
+        // Page might already be closed
+      }
+    }
+    registry.clear();
+
+    // Close context (this also closes the browser)
+    try {
+      await context.close();
+    } catch {
+      // Context might already be closed
+    }
+
+    server.close();
+    console.log("Server stopped.");
+  };
+
+  // Synchronous cleanup for forced exits
+  const syncCleanup = () => {
+    try {
+      context.close();
+    } catch {
+      // Best effort
+    }
+  };
+
+  // Signal handlers (consolidated to reduce duplication)
+  const signals = ["SIGINT", "SIGTERM", "SIGHUP"] as const;
+
+  const signalHandler = async () => {
+    await cleanup();
+    process.exit(0);
+  };
+
+  const errorHandler = async (err: unknown) => {
+    console.error("Unhandled error:", err);
+    await cleanup();
+    process.exit(1);
+  };
+
+  // Register handlers
+  signals.forEach((sig) => process.on(sig, signalHandler));
+  process.on("uncaughtException", errorHandler);
+  process.on("unhandledRejection", errorHandler);
+  process.on("exit", syncCleanup);
+
+  // Helper to remove all handlers
+  const removeHandlers = () => {
+    signals.forEach((sig) => process.off(sig, signalHandler));
+    process.off("uncaughtException", errorHandler);
+    process.off("unhandledRejection", errorHandler);
+    process.off("exit", syncCleanup);
+  };
+
+  return {
+    wsEndpoint,
+    port,
+    async stop() {
+      removeHandlers();
+      await cleanup();
+    },
+  };
+}