completed game importing; partial work on version importing

server/internal/objects/transactional.ts

@@ -2,7 +2,9 @@
 The purpose of this class is to hold references to remote objects (like images) until they're actually needed
 This is used as a utility in metadata handling, so we only fetch the objects if we're actually creating a database record.
 */
-import { v4 as uuidv4 } from 'uuid';
+import { Readable } from "stream";
+import { v4 as uuidv4 } from "uuid";
+import { GlobalObjectHandler } from "~/server/plugins/objects";
 
 type TransactionTable = { [key: string]: string }; // ID to URL
 type GlobalTransactionRecord = { [key: string]: TransactionTable }; // Transaction ID to table
@@ -12,27 +14,38 @@ type Pull = () => Promise<void>;
 type Dump = () => void;
 
 export class ObjectTransactionalHandler {
-    private record: GlobalTransactionRecord = {};
+  private record: GlobalTransactionRecord = {};
 
-    new(): [Register, Pull, Dump] {
-        const transactionId = uuidv4();
+  new(
+    metadata: { [key: string]: string },
+    permissions: Array<string>
+  ): [Register, Pull, Dump] {
+    const transactionId = uuidv4();
 
-        const register = (url: string) => {
-            const objectId = uuidv4();
-            this.record[transactionId][objectId] = url;
+    this.record[transactionId] ??= {};
 
-            return objectId;
-        }
+    const register = (url: string) => {
+      const objectId = uuidv4();
+      this.record[transactionId][objectId] = url;
 
-        const pull = async () => {
-            // Dummy function
-            dump();
-        }
+      return objectId;
+    };
 
-        const dump = () => {
-            delete this.record[transactionId];
-        }
+    const pull = async () => {
+      for (const [id, url] of Object.entries(this.record[transactionId])) {
+        await GlobalObjectHandler.createFromSource(
+          id,
+          () => $fetch<Readable>(url, { responseType: "stream" }),
+          metadata,
+          permissions
+        );
+      }
+    };
 
-        return [register, pull, dump];
-    }
-}
+    const dump = () => {
+      delete this.record[transactionId];
+    };
+
+    return [register, pull, dump];
+  }
+}