Complete carousel refactor.

Reduces one layer of DOM nesting for simplication, uses the latest Embla
version, unittests for everything.

tests/utils/download.test.ts

@@ -12,13 +12,66 @@ vi.mock('../../src/utils/ha');
 const media = new ViewMedia('clip', 'camera-1');
 
 // @vitest-environment jsdom
+describe('downloadURL', () => {
+  afterEach(() => {
+    vi.restoreAllMocks();
+    global.window.location = mock<Location>();
+  });
+
+  it('should download same origin via link', () => {
+    const location: Location & { origin: string } = mock<Location>();
+    location.origin = 'http://foo';
+    global.window.location = location;
+
+    const link = document.createElement('a');
+    link.click = vi.fn();
+    link.setAttribute = vi.fn();
+    vi.spyOn(document, 'createElement').mockReturnValue(link);
+
+    downloadURL('http://foo/url.mp4');
+
+    expect(link.href).toBe('http://foo/url.mp4');
+    expect(link.setAttribute).toBeCalledWith('download', 'download');
+    expect(link.click).toBeCalled();
+  });
+
+  it('should download data URL via link', () => {
+    const link = document.createElement('a');
+    link.click = vi.fn();
+    link.setAttribute = vi.fn();
+    vi.spyOn(document, 'createElement').mockReturnValue(link);
+
+    downloadURL('data:text/plain;charset=utf-8;base64,VEhJUyBJUyBEQVRB');
+
+    expect(link.href).toBe('data:text/plain;charset=utf-8;base64,VEhJUyBJUyBEQVRB');
+    expect(link.setAttribute).toBeCalledWith('download', 'download');
+    expect(link.click).toBeCalled();
+  });
+
+  it('should download in apps via window.open', () => {
+    // Set the origin to the same.
+    const location: Location & { origin: string } = mock<Location>();
+    location.origin = 'http://foo';
+    global.window.location = location;
+
+    vi.stubGlobal('navigator', {
+      userAgent: 'Home Assistant/2023.3.0-3260 (Android 13; Pixel 7 Pro)',
+    });
+
+    const windowSpy = vi.spyOn(window, 'open').mockReturnValue(null);
+
+    downloadURL('http://foo/url.mp4');
+    expect(windowSpy).toBeCalledWith('http://foo/url.mp4', '_blank');
+  });
+});
+
 describe('downloadMedia', () => {
   afterEach(() => {
     vi.resetAllMocks();
     global.window.location = mock<Location>();
   });
 
-  it('should throw error when no media', async () => {
+  it('should throw error when no media', () => {
     const cameraManager = createCameraManager();
     mock<CameraManager>(cameraManager).getMediaDownloadPath.mockResolvedValue(null);
 
@@ -55,44 +108,16 @@ describe('downloadMedia', () => {
     await downloadMedia(createHASS(), cameraManager, media);
     expect(windowSpy).toBeCalledWith('http://foo/signed-url', '_blank');
   });
-});
 
-describe('downloadURL', () => {
-  afterEach(() => {
-    vi.resetAllMocks();
-    global.window.location = mock<Location>();
-  });
-
-  it('should download same origin via link', async () => {
-    const location: Location & { origin: string } = mock<Location>();
-    location.origin = 'http://foo';
-    global.window.location = location;
-
-    const link = document.createElement('a');
-    link.click = vi.fn();
-    link.setAttribute = vi.fn();
-    vi.spyOn(document, 'createElement').mockReturnValue(link);
-
-    downloadURL('http://foo/url.mp4');
-
-    expect(link.href).toBe('http://foo/url.mp4');
-    expect(link.setAttribute).toBeCalledWith('download', 'download');
-    expect(link.click).toBeCalled();
-  });
-
-  it('should download in apps via window.open', async () => {
-    // Set the origin to the same.
-    const location: Location & { origin: string } = mock<Location>();
-    location.origin = 'http://foo';
-    global.window.location = location;
-
-    vi.stubGlobal('navigator', {
-      userAgent: 'Home Assistant/2023.3.0-3260 (Android 13; Pixel 7 Pro)',
+  it('should download media without signing', async () => {
+    const cameraManager = createCameraManager();
+    mock<CameraManager>(cameraManager).getMediaDownloadPath.mockResolvedValue({
+      sign: false,
+      endpoint: 'https://foo/',
     });
-
     const windowSpy = vi.spyOn(window, 'open').mockReturnValue(null);
 
-    downloadURL('http://foo/url.mp4');
-    expect(windowSpy).toBeCalledWith('http://foo/url.mp4', '_blank');
+    await downloadMedia(createHASS(), cameraManager, media);
+    expect(windowSpy).toBeCalledWith('https://foo/', '_blank');
   });
 });