import { describe, it, expect, mock, beforeEach } from "bun:test";

// Mock the OAuth client and session
const mockOAuthSession = {
  getTokenInfo: mock(),
};

const mockOAuthClient = {
  restore: mock(),
};

const mockSession = {
  did: "did:plc:test123",
  updateConfig: mock(),
  save: mock(),
  destroy: mock(),
};

// Mock environment
void mock.module("../env", () => ({
  env: {
    COOKIE_SECRET: "test-secret-key-for-testing-purposes-only",
  },
}));

describe("Token Refresh Logic", () => {
  beforeEach(() => {
    mockOAuthClient.restore.mockClear();
    mockOAuthSession.getTokenInfo.mockClear();
    mockSession.updateConfig.mockClear();
    mockOAuthClient.restore.mockResolvedValue(mockOAuthSession);
  });

  it('should use "auto" mode for automatic token refresh', async () => {
    const mockTokenInfo = {
      expiresAt: new Date(Date.now() + 30 * 60 * 1000),
    };
    mockOAuthSession.getTokenInfo.mockResolvedValueOnce(mockTokenInfo);

    const oauthSession = await mockOAuthClient.restore(mockSession.did, false);
    await oauthSession.getTokenInfo("auto");

    expect(mockOAuthSession.getTokenInfo).toHaveBeenCalledWith("auto");
  });

  it("should handle token refresh in mobile endpoint", async () => {
    const mockTokenInfo = {
      expiresAt: new Date(Date.now() + 30 * 60 * 1000),
    };
    mockOAuthSession.getTokenInfo.mockResolvedValueOnce(mockTokenInfo);

    const oauthSession = await mockOAuthClient.restore(mockSession.did);
    await oauthSession.getTokenInfo("auto");

    mockSession.updateConfig({
      cookieName: "sid",
      password: "test-secret-key-for-testing-purposes-only",
      ttl: 60 * 60 * 24,
    });

    expect(mockSession.updateConfig).toHaveBeenCalledWith(
      expect.objectContaining({
        ttl: 86400,
      }),
    );
  });

  it("should handle token refresh failure gracefully", async () => {
    mockOAuthSession.getTokenInfo.mockRejectedValueOnce(new Error("Token refresh failed"));

    try {
      const oauthSession = await mockOAuthClient.restore(mockSession.did);
      await oauthSession.getTokenInfo("auto");
    } catch (error) {
      expect(error).toBeInstanceOf(Error);
      expect((error as Error).message).toBe("Token refresh failed");
    }
  });

  it("should prioritize automatic refresh over manual refresh", () => {
    const autoMode = "auto";
    const manualMode = false;

    expect(autoMode).toBe("auto");
    expect(autoMode).not.toBe(manualMode);
  });

  it("should maintain consistent session TTL across refresh operations", () => {
    const sessionTTL = 60 * 60 * 24;

    expect(sessionTTL).toBe(86400);

    const firstRefreshTTL = sessionTTL;
    const secondRefreshTTL = sessionTTL;

    expect(firstRefreshTTL).toBe(secondRefreshTTL);
  });
});