perf(deleteAction): Queue delete requests

When multiple files are deleted at once, all the requests bombard the server
simultaneously, causing performance issues.

This commit adds queuing that limits the concurrency of these requests to 5
at a time.

Signed-off-by: fenn-cs <fenn25.fn@gmail.com>

Author: nfebe

apps/files/src/actions/deleteAction.ts

@@ -59,6 +59,8 @@ const isAllFolders = (nodes: Node[]) => {
 	return !nodes.some(node => node.type !== FileType.Folder)
 }
 
+const queue = new PQueue({ concurrency: 1 })
+
 export const action = new FileAction({
 	id: 'delete',
 	displayName(nodes: Node[], view: View) {
@@ -153,7 +155,19 @@ export const action = new FileAction({
 		}
 	},
 	async execBatch(nodes: Node[], view: View, dir: string) {
-		return Promise.all(nodes.map(node => this.exec(node, view, dir)))
+		// Map each node to a promise that resolves with the result of exec(node)
+		const promises = nodes.map(node => {
+		    // Create a promise that resolves with the result of exec(node)
+		    const promise = new Promise<boolean>(resolve => {
+				queue.add(async () => {
+					const result = await this.exec(node, view, dir)
+					resolve(result !== null ? result : false)
+				})
+			})
+			return promise
+		})
+
+		return Promise.all(promises)
 	},
 
 	order: 100,