fix: unifier la logique de choix de taille d'image via formatKuveti

lib/__tests__/kuveti.test.js

@@ -0,0 +1,38 @@
+import {describe, it, expect} from 'vitest'
+import {formatKuveti} from '../kuveti'
+
+const kuveti = {
+  url: '/uploads/original.jpg',
+  formats: {
+    thumbnail: {url: '/uploads/thumbnail.jpg', width: 156, height: 156},
+    small: {url: '/uploads/small.jpg', width: 500, height: 500},
+    medium: {url: '/uploads/medium.jpg', width: 750, height: 750},
+    large: {url: '/uploads/large.jpg', width: 1000, height: 1000},
+  }
+}
+
+describe('formatKuveti', () => {
+  it('returns null when there is no image', () => {
+    expect(formatKuveti(null)).toBeNull()
+    expect(formatKuveti(undefined)).toBeNull()
+  })
+
+  it('defaults to the large format', () => {
+    expect(formatKuveti(kuveti)).toBe(kuveti.formats.large)
+  })
+
+  it('prefers the thumbnail format when asked', () => {
+    expect(formatKuveti(kuveti, 'thumbnail')).toBe(kuveti.formats.thumbnail)
+  })
+
+  it('falls back to small then medium then large when thumbnail is missing', () => {
+    const {thumbnail, ...rest} = kuveti.formats
+    const withoutThumbnail = {...kuveti, formats: rest}
+    expect(formatKuveti(withoutThumbnail, 'thumbnail')).toBe(rest.small)
+  })
+
+  it('falls back to the original file when no format matches', () => {
+    const noFormats = {url: '/uploads/original.jpg', formats: {}}
+    expect(formatKuveti(noFormats, 'thumbnail')).toBe(noFormats)
+  })
+})

lib/kuveti.js

@@ -1,7 +1,8 @@
 const SIZE_ORDER = {
-  large:  ['large', 'medium', 'small'],
-  medium: ['medium', 'small', 'large'],
-  small:  ['small', 'medium', 'large'],
+  large:     ['large', 'medium', 'small'],
+  medium:    ['medium', 'small', 'large'],
+  small:     ['small', 'medium', 'large'],
+  thumbnail: ['thumbnail', 'small', 'medium', 'large'],
 }
 
 export const formatKuveti = (kuveti, preferred = 'large') => {