refactor: clean upload pipeline and restore draco delivery

lib/parse-upload.ts

@@ -3,11 +3,17 @@ import { NextRequest } from 'next/server'
 import { sanitizeFilename } from './sanitize'
 import { ALL_ALLOWED_EXTENSIONS, MODEL_EXTENSIONS, MAX_FILE_SIZE, TEXTURE_EXTENSIONS } from './constants'
 import { getTextureNamingError } from './asset-naming'
-import type { ParsedFile } from './types'
+import type { GitModelMode, ParsedFile } from './types'
 
 interface ParsedUpload {
   folderName: string
   files: ParsedFile[]
+  gitModelMode: GitModelMode
+}
+
+function parseGitModelMode(value: FormDataEntryValue | null): GitModelMode {
+  if (value === 'draco-glb' || value === 'keep-gltf') return value
+  throw new Error('Mode Git invalide')
 }
 
 export async function parseMultiUpload(req: NextRequest): Promise<ParsedUpload> {
@@ -15,6 +21,7 @@ export async function parseMultiUpload(req: NextRequest): Promise<ParsedUpload>
   const folderValue = formData.get('folderName')
   const folderName = typeof folderValue === 'string' ? folderValue.trim() || 'assets' : 'assets'
   const safeFolderName = sanitizeFilename(folderName).replace(/[^a-zA-Z0-9-_]/g, '-')
+  const gitModelMode = parseGitModelMode(formData.get('gitModelMode'))
 
   const rawFiles = formData.getAll('files')
   const fileTypes = formData.getAll('fileTypes').filter((value): value is string => typeof value === 'string')
@@ -95,5 +102,5 @@ export async function parseMultiUpload(req: NextRequest): Promise<ParsedUpload>
     throw new Error('Un seul fichier model.gltf est autorise')
   }
 
-  return { folderName: safeFolderName, files: parsed }
+  return { folderName: safeFolderName, files: parsed, gitModelMode }
 }