fin du refactp

lib/validate-folder.ts

@@ -0,0 +1,63 @@
+// ---------------------------------------------------------------------------
+// Client-side folder validation
+// ---------------------------------------------------------------------------
+
+import { REQUIRED_TEXTURES, TEXTURE_EXTENSIONS } from '@/lib/constants'
+import type { TextureFile } from '@/lib/client-types'
+
+const TEXTURE_EXT_ARRAY = [...TEXTURE_EXTENSIONS]
+
+function getTextureType(filename: string): string | null {
+  const name = filename.toLowerCase().replace(/\.[^.]+$/, '')
+  if ((REQUIRED_TEXTURES as readonly string[]).includes(name)) return name
+  return null
+}
+
+export function validateFolder(files: File[]): {
+  model?: File
+  textures: TextureFile[]
+  errors: string[]
+  warnings: string[]
+} {
+  const result: {
+    model?: File
+    textures: TextureFile[]
+    errors: string[]
+    warnings: string[]
+  } = {
+    textures: [],
+    errors: [],
+    warnings: [],
+  }
+
+  const modelFiles = files.filter((f) => {
+    const name = f.name.toLowerCase()
+    return name === 'model.glb' || name === 'model.gltf'
+  })
+
+  if (modelFiles.length === 0) {
+    result.errors.push('model.glb ou model.gltf manquant (obligatoire)')
+  } else {
+    result.model = modelFiles[0]
+  }
+
+  const textureFiles = files.filter((f) => {
+    const ext = f.name.slice(f.name.lastIndexOf('.')).toLowerCase()
+    return TEXTURE_EXT_ARRAY.includes(ext) && getTextureType(f.name) !== null
+  })
+
+  for (const tf of textureFiles) {
+    result.textures.push({ name: tf.name, file: tf })
+  }
+
+  const foundTextures = new Set(
+    result.textures.map((t) => t.name.toLowerCase().replace(/\.[^.]+$/, '')),
+  )
+  for (const req of REQUIRED_TEXTURES) {
+    if (!foundTextures.has(req)) {
+      result.warnings.push(`${req}.webp/png/jpg manquant`)
+    }
+  }
+
+  return result
+}