init

src/browser.ts

@@ -0,0 +1,95 @@
+import { chromium, firefox, webkit, type Browser, type BrowserContext, type Page } from 'playwright';
+import type { BrowserState, LaunchCommand } from './types.js';
+
+/**
+ * Manages the Playwright browser lifecycle
+ */
+export class BrowserManager {
+  private state: BrowserState = {
+    browser: null,
+    context: null,
+    page: null,
+  };
+
+  /**
+   * Check if browser is launched
+   */
+  isLaunched(): boolean {
+    return this.state.browser !== null;
+  }
+
+  /**
+   * Get the current page, throws if not launched
+   */
+  getPage(): Page {
+    if (!this.state.page) {
+      throw new Error('Browser not launched. Call launch first.');
+    }
+    return this.state.page;
+  }
+
+  /**
+   * Get the current browser instance
+   */
+  getBrowser(): Browser | null {
+    return this.state.browser;
+  }
+
+  /**
+   * Get the current context
+   */
+  getContext(): BrowserContext | null {
+    return this.state.context;
+  }
+
+  /**
+   * Launch the browser with the specified options
+   */
+  async launch(options: LaunchCommand): Promise<void> {
+    // Close existing browser if any
+    if (this.state.browser) {
+      await this.close();
+    }
+
+    // Select browser type
+    const browserType = options.browser ?? 'chromium';
+    const launcher = browserType === 'firefox' 
+      ? firefox 
+      : browserType === 'webkit' 
+        ? webkit 
+        : chromium;
+
+    // Launch browser
+    this.state.browser = await launcher.launch({
+      headless: options.headless ?? true,
+    });
+
+    // Create context with viewport
+    this.state.context = await this.state.browser.newContext({
+      viewport: options.viewport ?? { width: 1280, height: 720 },
+    });
+
+    // Create initial page
+    this.state.page = await this.state.context.newPage();
+  }
+
+  /**
+   * Close the browser and clean up
+   */
+  async close(): Promise<void> {
+    if (this.state.page) {
+      await this.state.page.close().catch(() => {});
+      this.state.page = null;
+    }
+
+    if (this.state.context) {
+      await this.state.context.close().catch(() => {});
+      this.state.context = null;
+    }
+
+    if (this.state.browser) {
+      await this.state.browser.close().catch(() => {});
+      this.state.browser = null;
+    }
+  }
+}