📝Updated documentation for the backend services

Documentation/docs/internal-documentation/backend-services/files/database-models.md

@@ -1,40 +1,28 @@
 ---
 description: File database models
 ---
-<!-- TODO[NOT UP TO DATE] -->
 # Database models
 
 *   **files** The main file object in database
 
-    ```javascript
-      
-    javascript
-      {
-        
-        //Primary key: [["company_id"], "id"]
-        "company_id": "uuid-v4",
-        "id": "uuid-v4",
-        "user_id": "string",
-        "application_id": "string",
-        "updated_at": "number", 
-        "created_at":"number
-          
-        "upload_data": (json){
-          "size": number, //Total file size
-          "chunks": number, //Number of chunks
-         }
-        "metadata": (json){
-          "name": "string", //File name
-          "mime": "type/subtype",
-        }
-        "thumbnails": (json) {  //Url to thumbnail (or set it to undefined if no relevant)
-          "index": "string",
-          "id": "uuid-v4",
-          "type": "string",
-          "size": "number,
-          "width": number, //Thumbnail width (for images only)
-          "height": number, //Thumbnail height (for images only)
-        }
+```Typescript
+    export class File {
+        company_id: string;
+        id: string;
+        user_id: string;
+        application_id: null | string;
+        encryption_key: string;
+        updated_at: number;
+        created_at: number;
+        metadata: null | {
+            name?: string;
+            mime?: string;
+            thumbnails_status?: "done" | "error" | "waiting";
+        };
+        thumbnails: Thumbnail[];
+        upload_data: null | {
+            size: number;
+            chunks: number;
+        };
     }
-
-    ```
+```