feat: add logto auth and backend metrics integration

tests/background-auth-client.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, test, vi } from "vitest";
+
+import { createLogtoAuthClient } from "../src/background/auth/client";
+
+vi.mock("@logto/chrome-extension", () => {
+  const signIn = vi.fn(async () => undefined);
+  const signOut = vi.fn(async () => undefined);
+  const MockLogtoClient = vi.fn(function MockLogtoClient() {
+    return {
+      getAccessToken: vi.fn(async () => "token"),
+      getIdTokenClaims: vi.fn(async () => null),
+      isAuthenticated: vi.fn(async () => false),
+      signIn,
+      signOut
+    };
+  });
+
+  return {
+    default: MockLogtoClient
+  };
+});
+
+describe("background-auth-client", () => {
+  test("uses chrome identity redirect URLs for sign in and sign out", async () => {
+    const getRedirectURL = vi.fn((path?: string) =>
+      path ? `https://extension.chromiumapp.org${path}` : "https://extension.chromiumapp.org/"
+    );
+
+    (
+      globalThis as typeof globalThis & {
+        chrome?: {
+          identity?: {
+            getRedirectURL?: (path?: string) => string;
+          };
+        };
+      }
+    ).chrome = {
+      identity: {
+        getRedirectURL
+      }
+    };
+
+    const authClient = createLogtoAuthClient();
+    await authClient.signIn();
+    await authClient.signOut();
+
+    expect(getRedirectURL).toHaveBeenNthCalledWith(1, "/callback");
+    expect(getRedirectURL).toHaveBeenNthCalledWith(2);
+  });
+});