Function detectAvailableBrowser

src/utils/claudeInChrome/common.ts:345–409

()

 * Returns the first available browser, or null if none found
 */
export async function detectAvailableBrowser(): Promise<ChromiumBrowser | null> {
  const platform = getPlatform()

  for (const browserId of BROWSER_DETECTION_ORDER) {
    const config = CHROMIUM_BROWSERS[browserId]

    switch (platform) {
      case 'macos': {
        // Check if the .app bundle (a directory) exists
        const appPath = `/Applications/${config.macos.appName}.app`
        try {
          const stats = await stat(appPath)
          if (stats.isDirectory()) {
            logForDebugging(
              `[Claude in Chrome] Detected browser: ${config.name}`,
            )
            return browserId
          }
        } catch (e) {
          if (!isFsInaccessible(e)) throw e
          // App not found, continue checking
        }
        break
      }
      case 'wsl':
      case 'linux': {
        // Check if any binary exists
        for (const binary of config.linux.binaries) {
          if (await which(binary).catch(() => null)) {
            logForDebugging(
              `[Claude in Chrome] Detected browser: ${config.name}`,
            )
            return browserId
          }
        }
        break
      }
      case 'windows': {
        // Check if data path exists (indicates browser is installed)
        const home = homedir()
        if (config.windows.dataPath.length > 0) {
          const appDataBase = config.windows.useRoaming
            ? join(home, 'AppData', 'Roaming')
            : join(home, 'AppData', 'Local')
          const dataPath = join(appDataBase, ...config.windows.dataPath)
          try {
            const stats = await stat(dataPath)
            if (stats.isDirectory()) {
              logForDebugging(
                `[Claude in Chrome] Detected browser: ${config.name}`,
              )
              return browserId
            }
          } catch (e) {
            if (!isFsInaccessible(e)) throw e
            // Browser not found, continue checking
          }
        }