feat: Rewrite aiMixin to a composable (#9955)

This PR will replace the usage of aiMixin with the useAI composable.

Fixes https://linear.app/chatwoot/issue/CW-3443/rewrite-aimixin-mixin-to-a-composable

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

app/javascript/dashboard/composables/spec/useAI.spec.js

@@ -0,0 +1,119 @@
+import { useAI } from '../useAI';
+import {
+  useStore,
+  useStoreGetters,
+  useMapGetter,
+} from 'dashboard/composables/store';
+import { useAlert, useTrack } from 'dashboard/composables';
+import { useI18n } from '../useI18n';
+import OpenAPI from 'dashboard/api/integrations/openapi';
+
+vi.mock('dashboard/composables/store');
+vi.mock('dashboard/composables');
+vi.mock('../useI18n');
+vi.mock('dashboard/api/integrations/openapi');
+vi.mock('dashboard/helper/AnalyticsHelper/events', () => ({
+  OPEN_AI_EVENTS: {
+    TEST_EVENT: 'open_ai_test_event',
+  },
+}));
+
+describe('useAI', () => {
+  const mockStore = {
+    dispatch: vi.fn(),
+  };
+
+  const mockGetters = {
+    'integrations/getUIFlags': { value: { isFetching: false } },
+    'draftMessages/get': { value: () => 'Draft message' },
+  };
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    useStore.mockReturnValue(mockStore);
+    useStoreGetters.mockReturnValue(mockGetters);
+    useMapGetter.mockImplementation(getter => {
+      const mockValues = {
+        'integrations/getAppIntegrations': [],
+        getSelectedChat: { id: '123' },
+        'draftMessages/getReplyEditorMode': 'reply',
+      };
+      return { value: mockValues[getter] };
+    });
+    useTrack.mockReturnValue(vi.fn());
+    useI18n.mockReturnValue({ t: vi.fn() });
+    useAlert.mockReturnValue(vi.fn());
+  });
+
+  it('initializes computed properties correctly', async () => {
+    const { uiFlags, appIntegrations, currentChat, replyMode, draftMessage } =
+      useAI();
+
+    expect(uiFlags.value).toEqual({ isFetching: false });
+    expect(appIntegrations.value).toEqual([]);
+    expect(currentChat.value).toEqual({ id: '123' });
+    expect(replyMode.value).toBe('reply');
+    expect(draftMessage.value).toBe('Draft message');
+  });
+
+  it('fetches integrations if required', async () => {
+    const { fetchIntegrationsIfRequired } = useAI();
+    await fetchIntegrationsIfRequired();
+    expect(mockStore.dispatch).toHaveBeenCalledWith('integrations/get');
+  });
+
+  it('does not fetch integrations if already loaded', async () => {
+    useMapGetter.mockImplementation(getter => {
+      const mockValues = {
+        'integrations/getAppIntegrations': [{ id: 'openai' }],
+        getSelectedChat: { id: '123' },
+        'draftMessages/getReplyEditorMode': 'reply',
+      };
+      return { value: mockValues[getter] };
+    });
+
+    const { fetchIntegrationsIfRequired } = useAI();
+    await fetchIntegrationsIfRequired();
+    expect(mockStore.dispatch).not.toHaveBeenCalled();
+  });
+
+  it('records analytics correctly', async () => {
+    const mockTrack = vi.fn();
+    useTrack.mockReturnValue(mockTrack);
+    const { recordAnalytics } = useAI();
+
+    await recordAnalytics('TEST_EVENT', { data: 'test' });
+
+    expect(mockTrack).toHaveBeenCalledWith('open_ai_test_event', {
+      type: 'TEST_EVENT',
+      data: 'test',
+    });
+  });
+
+  it('fetches label suggestions', async () => {
+    OpenAPI.processEvent.mockResolvedValue({
+      data: { message: 'label1, label2' },
+    });
+
+    useMapGetter.mockImplementation(getter => {
+      const mockValues = {
+        'integrations/getAppIntegrations': [
+          { id: 'openai', hooks: [{ id: 'hook1' }] },
+        ],
+        getSelectedChat: { id: '123' },
+      };
+      return { value: mockValues[getter] };
+    });
+
+    const { fetchLabelSuggestions } = useAI();
+    const result = await fetchLabelSuggestions();
+
+    expect(OpenAPI.processEvent).toHaveBeenCalledWith({
+      type: 'label_suggestion',
+      hookId: 'hook1',
+      conversationId: '123',
+    });
+
+    expect(result).toEqual(['label1', 'label2']);
+  });
+});