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/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
import type { Folder, Node } from '@nextcloud/files'
import { Permission } from '@nextcloud/files'
import PQueue from 'p-queue'
// This is the processing queue. We only want to allow 3 concurrent requests
let queue: PQueue
// Maximum number of concurrent operations
const MAX_CONCURRENCY = 5
/**
* Get the processing queue
*/
export const getQueue = () => {
if (!queue) {
queue = new PQueue({ concurrency: MAX_CONCURRENCY })
}
return queue
}
type ShareAttribute = {
value: boolean|string|number|null|object|Array<unknown>
key: string
scope: string
}
export enum MoveCopyAction {
MOVE = 'Move',
COPY = 'Copy',
MOVE_OR_COPY = 'move-or-copy',
}
export type MoveCopyResult = {
destination: Folder
action: MoveCopyAction.COPY | MoveCopyAction.MOVE
}
export const canMove = (nodes: Node[]) => {
const minPermission = nodes.reduce((min, node) => Math.min(min, node.permissions), Permission.ALL)
return (minPermission & Permission.UPDATE) !== 0
}
export const canDownload = (nodes: Node[]) => {
return nodes.every(node => {
const shareAttributes = JSON.parse(node.attributes?.['share-attributes'] ?? '[]') as Array<ShareAttribute>
return !shareAttributes.some(attribute => attribute.scope === 'permissions' && attribute.value === false && attribute.key === 'download')
})
}
export const canCopy = (nodes: Node[]) => {
// a shared file cannot be copied if the download is disabled
// it can be copied if the user has at least read permissions
return canDownload(nodes)
&& !nodes.some(node => node.permissions === Permission.NONE)
}
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