Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/javascript/dashboard/composables/spec/useImageZoom.spec.js

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+import { ref } from 'vue';
+import { useImageZoom } from 'dashboard/composables/useImageZoom';
+
+describe('useImageZoom', () => {
+  let imageRef;
+
+  beforeEach(() => {
+    // Mock imageRef element with getBoundingClientRect method
+    imageRef = ref({
+      getBoundingClientRect: () => ({
+        left: 100,
+        top: 100,
+        width: 200,
+        height: 200,
+      }),
+    });
+  });
+
+  it('should initialize with default values', () => {
+    const { zoomScale, imgTransformOriginPoint, activeImageRotation } =
+      useImageZoom(imageRef);
+
+    expect(zoomScale.value).toBe(1);
+    expect(imgTransformOriginPoint.value).toBe('center center');
+    expect(activeImageRotation.value).toBe(0);
+  });
+
+  it('should update zoom scale when onZoom is called', () => {
+    const { zoomScale, onZoom } = useImageZoom(imageRef);
+
+    onZoom(0.5);
+    expect(zoomScale.value).toBe(1.5);
+
+    // Should respect max zoom level
+    onZoom(10);
+    expect(zoomScale.value).toBe(3);
+
+    // Should respect min zoom level
+    onZoom(-10);
+    expect(zoomScale.value).toBe(1);
+  });
+
+  it('should update rotation when onRotate is called', () => {
+    const { activeImageRotation, onRotate } = useImageZoom(imageRef);
+
+    onRotate('clockwise');
+    expect(activeImageRotation.value).toBe(90);
+
+    onRotate('counter-clockwise');
+    expect(activeImageRotation.value).toBe(0);
+
+    // Test full rotation reset
+    onRotate('clockwise');
+    onRotate('clockwise');
+    onRotate('clockwise');
+    onRotate('clockwise');
+    onRotate('clockwise');
+    // After 360 degrees, it should reset and add the new rotation
+    expect(activeImageRotation.value).toBe(90);
+  });
+
+  it('should reset zoom and rotation', () => {
+    const {
+      zoomScale,
+      activeImageRotation,
+      onZoom,
+      onRotate,
+      resetZoomAndRotation,
+    } = useImageZoom(imageRef);
+
+    onZoom(0.5);
+    onRotate('clockwise');
+    expect(zoomScale.value).toBe(1); // Rotation resets zoom
+    expect(activeImageRotation.value).toBe(90);
+
+    onZoom(0.5);
+    expect(zoomScale.value).toBe(1.5);
+
+    resetZoomAndRotation();
+    expect(zoomScale.value).toBe(1);
+    expect(activeImageRotation.value).toBe(0);
+  });
+
+  it('should handle double click zoom', () => {
+    const { zoomScale, onDoubleClickZoomImage } = useImageZoom(imageRef);
+
+    // Mock event
+    const event = {
+      clientX: 150,
+      clientY: 150,
+      preventDefault: vi.fn(),
+    };
+
+    onDoubleClickZoomImage(event);
+    expect(zoomScale.value).toBe(3); // Max zoom
+    expect(event.preventDefault).toHaveBeenCalled();
+
+    onDoubleClickZoomImage(event);
+    expect(zoomScale.value).toBe(1); // Min zoom
+  });
+
+  it('should handle wheel zoom', () => {
+    const { zoomScale, onWheelImageZoom } = useImageZoom(imageRef);
+
+    // Mock event
+    const event = {
+      clientX: 150,
+      clientY: 150,
+      deltaY: -10, // Zoom in
+      preventDefault: vi.fn(),
+    };
+
+    onWheelImageZoom(event);
+    expect(zoomScale.value).toBe(1.2);
+    expect(event.preventDefault).toHaveBeenCalled();
+
+    // Zoom out
+    event.deltaY = 10;
+    onWheelImageZoom(event);
+    expect(zoomScale.value).toBe(1);
+  });
+
+  it('should correctly compute zoom origin', () => {
+    const { getZoomOrigin } = useImageZoom(imageRef);
+
+    // Test center point
+    const centerOrigin = getZoomOrigin(200, 200);
+    expect(centerOrigin.x).toBeCloseTo(50);
+    expect(centerOrigin.y).toBeCloseTo(50);
+
+    // Test top-left corner
+    const topLeftOrigin = getZoomOrigin(100, 100);
+    expect(topLeftOrigin.x).toBeCloseTo(0);
+    expect(topLeftOrigin.y).toBeCloseTo(0);
+
+    // Test bottom-right corner
+    const bottomRightOrigin = getZoomOrigin(300, 300);
+    expect(bottomRightOrigin.x).toBeCloseTo(100);
+    expect(bottomRightOrigin.y).toBeCloseTo(100);
+  });
+});