refactor: remove import cycles in browsers (#10974)

packages/browsers/src/Cache.ts

@@ -15,10 +15,15 @@
  */
 
 import fs from 'fs';
+import os from 'os';
 import path from 'path';
 
-import {Browser, type BrowserPlatform} from './browser-data/browser-data.js';
-import {computeExecutablePath} from './launch.js';
+import {
+  Browser,
+  type BrowserPlatform,
+  executablePathByBrowser,
+} from './browser-data/browser-data.js';
+import {detectBrowserPlatform} from './detectPlatform.js';
 
 /**
  * @public
@@ -27,6 +32,7 @@ export class InstalledBrowser {
   browser: Browser;
   buildId: string;
   platform: BrowserPlatform;
+  readonly executablePath: string;
 
   #cache: Cache;
 
@@ -43,6 +49,11 @@ export class InstalledBrowser {
     this.browser = browser;
     this.buildId = buildId;
     this.platform = platform;
+    this.executablePath = cache.computeExecutablePath({
+      browser,
+      buildId,
+      platform,
+    });
   }
 
   /**
@@ -56,15 +67,27 @@ export class InstalledBrowser {
       this.buildId
     );
   }
-
-  get executablePath(): string {
-    return computeExecutablePath({
-      cacheDir: this.#cache.rootDir,
-      platform: this.platform,
-      browser: this.browser,
-      buildId: this.buildId,
-    });
 }
+
+/**
+ * @internal
+ */
+export interface ComputeExecutablePathOptions {
+  /**
+   * Determines which platform the browser will be suited for.
+   *
+   * @defaultValue **Auto-detected.**
+   */
+  platform?: BrowserPlatform;
+  /**
+   * Determines which browser to launch.
+   */
+  browser: Browser;
+  /**
+   * Determines which buildId to download. BuildId should uniquely identify
+   * binaries and they are used for caching.
+   */
+  buildId: string;
 }
 
 /**
@@ -159,6 +182,27 @@ export class Cache {
         });
     });
   }
+
+  computeExecutablePath(options: ComputeExecutablePathOptions): string {
+    options.platform ??= detectBrowserPlatform();
+    if (!options.platform) {
+      throw new Error(
+        `Cannot download a binary for the provided platform: ${os.platform()} (${os.arch()})`
+      );
+    }
+    const installationDir = this.installationDir(
+      options.browser,
+      options.platform,
+      options.buildId
+    );
+    return path.join(
+      installationDir,
+      executablePathByBrowser[options.browser](
+        options.platform,
+        options.buildId
+      )
+    );
+  }
 }
 
 function parseFolderPath(

packages/browsers/src/browser-data/types.ts

@@ -14,9 +14,6 @@
  * limitations under the License.
  */
 
-import * as chrome from './chrome.js';
-import * as firefox from './firefox.js';
-
 /**
  * Supported browsers.
  *
@@ -44,12 +41,6 @@ export enum BrowserPlatform {
   WIN64 = 'win64',
 }
 
-export const downloadUrls = {
-  [Browser.CHROME]: chrome.resolveDownloadUrl,
-  [Browser.CHROMIUM]: chrome.resolveDownloadUrl,
-  [Browser.FIREFOX]: firefox.resolveDownloadUrl,
-};
-
 /**
  * @public
  */

packages/browsers/src/launch.ts

@@ -17,13 +17,11 @@
 import childProcess from 'child_process';
 import {accessSync} from 'fs';
 import os from 'os';
-import path from 'path';
 import readline from 'readline';
 
 import {
   type Browser,
   type BrowserPlatform,
-  executablePathByBrowser,
   resolveSystemExecutablePath,
   type ChromeReleaseChannel,
 } from './browser-data/browser-data.js';
@@ -64,21 +62,7 @@ export interface ComputeExecutablePathOptions {
 export function computeExecutablePath(
   options: ComputeExecutablePathOptions
 ): string {
-  options.platform ??= detectBrowserPlatform();
-  if (!options.platform) {
-    throw new Error(
-      `Cannot download a binary for the provided platform: ${os.platform()} (${os.arch()})`
-    );
-  }
-  const installationDir = new Cache(options.cacheDir).installationDir(
-    options.browser,
-    options.platform,
-    options.buildId
-  );
-  return path.join(
-    installationDir,
-    executablePathByBrowser[options.browser](options.platform, options.buildId)
-  );
+  return new Cache(options.cacheDir).computeExecutablePath(options);
 }
 
 /**