New structure

src/util/browser/BrowserFactory.ts

@@ -0,0 +1,60 @@
+/**
+ * Browser Factory Utility
+ * Eliminates code duplication between Desktop and Mobile flows
+ * 
+ * Centralized browser instance creation and cleanup logic
+ */
+
+import type { BrowserContext } from 'rebrowser-playwright'
+import type { MicrosoftRewardsBot } from '../../index'
+import type { AccountProxy } from '../../interface/Account'
+
+/**
+ * Create a browser instance for the given account
+ * IMPROVEMENT: Extracted from DesktopFlow and MobileFlow to eliminate duplication
+ * 
+ * @param bot Bot instance
+ * @param proxy Account proxy configuration
+ * @param email Account email for session naming
+ * @returns Browser context ready to use
+ * 
+ * @example
+ * const browser = await createBrowserInstance(bot, account.proxy, account.email)
+ */
+export async function createBrowserInstance(
+    bot: MicrosoftRewardsBot,
+    proxy: AccountProxy,
+    email: string
+): Promise<BrowserContext> {
+    const browserModule = await import('../../browser/Browser')
+    const Browser = browserModule.default
+    const browserInstance = new Browser(bot)
+    return await browserInstance.createBrowser(proxy, email)
+}
+
+/**
+ * Safely close browser context with error handling
+ * IMPROVEMENT: Extracted from DesktopFlow and MobileFlow to eliminate duplication
+ * 
+ * @param bot Bot instance
+ * @param browser Browser context to close
+ * @param email Account email for logging
+ * @param isMobile Whether this is a mobile browser context
+ * 
+ * @example
+ * await closeBrowserSafely(bot, browser, account.email, false)
+ */
+export async function closeBrowserSafely(
+    bot: MicrosoftRewardsBot,
+    browser: BrowserContext,
+    email: string,
+    isMobile: boolean
+): Promise<void> {
+    try {
+        await bot.browser.func.closeBrowser(browser, email)
+    } catch (closeError) {
+        const message = closeError instanceof Error ? closeError.message : String(closeError)
+        const platform = isMobile ? 'mobile' : 'desktop'
+        bot.log(isMobile, `${platform.toUpperCase()}-FLOW`, `Failed to close ${platform} context: ${message}`, 'warn')
+    }
+}