feat(files): ask for confirm if deleting 5 items or more

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

3 files changed, 156 insertions, 44 deletions

diff --git a/apps/files/src/actions/deleteAction.spec.ts b/apps/files/src/actions/deleteAction.spec.ts
index 0adb302dc32..0eec99b3b67 100644
--- a/apps/files/src/actions/deleteAction.spec.ts
+++ b/apps/files/src/actions/deleteAction.spec.ts
@@ -207,6 +207,9 @@ describe('Delete action execute tests', () => {
 		jest.spyOn(axios, 'delete')
 		jest.spyOn(eventBus, 'emit')
 
+		const confirmMock = jest.fn()
+		window.OC = { dialogs: { confirmDestructive: confirmMock } }
+
 		const file1 = new File({
 			id: 1,
 			source: 'https://cloud.domain.com/remote.php/dav/files/test/foo.txt',
@@ -225,6 +228,9 @@ describe('Delete action execute tests', () => {
 
 		const exec = await action.execBatch!([file1, file2], view, '/')
 
+		// Not enough nodes to trigger a confirmation dialog
+		expect(confirmMock).toBeCalledTimes(0)
+
 		expect(exec).toStrictEqual([true, true])
 		expect(axios.delete).toBeCalledTimes(2)
 		expect(axios.delete).toHaveBeenNthCalledWith(1, 'https://cloud.domain.com/remote.php/dav/files/test/foo.txt')
diff --git a/apps/files/src/actions/deleteAction.ts b/apps/files/src/actions/deleteAction.ts
index a086eb2e666..2c368a7e001 100644
--- a/apps/files/src/actions/deleteAction.ts
+++ b/apps/files/src/actions/deleteAction.ts
@@ -21,6 +21,7 @@
  */
 import { emit } from '@nextcloud/event-bus'
 import { Permission, Node, View, FileAction, FileType } from '@nextcloud/files'
+import { showInfo } from '@nextcloud/dialogs'
 import { translate as t, translatePlural as n } from '@nextcloud/l10n'
 import axios from '@nextcloud/axios'
 
@@ -58,55 +59,57 @@ const isAllFolders = (nodes: Node[]) => {
 	return !nodes.some(node => node.type !== FileType.Folder)
 }
 
-export const action = new FileAction({
-	id: 'delete',
-	displayName(nodes: Node[], view: View) {
-		/**
-		 * If we're in the trashbin, we can only delete permanently
-		 */
-		if (view.id === 'trashbin') {
-			return t('files', 'Delete permanently')
-		}
+const displayName = (nodes: Node[], view: View) => {
+	/**
+	 * If we're in the trashbin, we can only delete permanently
+	 */
+	if (view.id === 'trashbin') {
+		return t('files', 'Delete permanently')
+	}
 
-		/**
-		 * If we're in the sharing view, we can only unshare
-		 */
-		if (isMixedUnshareAndDelete(nodes)) {
-			return t('files', 'Delete and unshare')
-		}
+	/**
+	 * If we're in the sharing view, we can only unshare
+	 */
+	if (isMixedUnshareAndDelete(nodes)) {
+		return t('files', 'Delete and unshare')
+	}
 
-		/**
-		 * If those nodes are all the root node of a
-		 * share, we can only unshare them.
-		 */
-		if (canUnshareOnly(nodes)) {
-			return n('files', 'Leave this share', 'Leave these shares', nodes.length)
-		}
+	/**
+	 * If those nodes are all the root node of a
+	 * share, we can only unshare them.
+	 */
+	if (canUnshareOnly(nodes)) {
+		return n('files', 'Leave this share', 'Leave these shares', nodes.length)
+	}
 
-		/**
-		 * If those nodes are all the root node of an
-		 * external storage, we can only disconnect it.
-		 */
-		if (canDisconnectOnly(nodes)) {
-			return n('files', 'Disconnect storage', 'Disconnect storages', nodes.length)
-		}
+	/**
+	 * If those nodes are all the root node of an
+	 * external storage, we can only disconnect it.
+	 */
+	if (canDisconnectOnly(nodes)) {
+		return n('files', 'Disconnect storage', 'Disconnect storages', nodes.length)
+	}
 
-		/**
-		 * If we're only selecting files, use proper wording
-		 */
-		if (isAllFiles(nodes)) {
-		 return n('files', 'Delete file', 'Delete files', nodes.length)
-		}
+	/**
+	 * If we're only selecting files, use proper wording
+	 */
+	if (isAllFiles(nodes)) {
+		return n('files', 'Delete file', 'Delete files', nodes.length)
+	}
 
-		/**
-		 * If we're only selecting folders, use proper wording
-		 */
-		if (isAllFolders(nodes)) {
-			return n('files', 'Delete folder', 'Delete folders', nodes.length)
-		}
+	/**
+	 * If we're only selecting folders, use proper wording
+	 */
+	if (isAllFolders(nodes)) {
+		return n('files', 'Delete folder', 'Delete folders', nodes.length)
+	}
 
-		return t('files', 'Delete')
-	},
+	return t('files', 'Delete')
+}
+
+export const action = new FileAction({
+	id: 'delete',
+	displayName,
 	iconSvgInline: (nodes: Node[]) => {
 		if (canUnshareOnly(nodes)) {
 			return CloseSvg
@@ -139,7 +142,35 @@ export const action = new FileAction({
 			return false
 		}
 	},
-	async execBatch(nodes: Node[], view: View, dir: string) {
+
+	async execBatch(nodes: Node[], view: View, dir: string): Promise<(boolean | null)[]> {
+		const confirm = await new Promise<boolean>(resolve => {
+			if (nodes.length >= 5 && !canUnshareOnly(nodes) && !canDisconnectOnly(nodes)) {
+				// TODO use a proper dialog from @nextcloud/dialogs when available
+				window.OC.dialogs.confirmDestructive(
+					t('files', 'You are about to delete {count} items.', { count: nodes.length }),
+					t('files', 'Confirm deletion'),
+					{
+						type: window.OC.dialogs.YES_NO_BUTTONS,
+						confirm: displayName(nodes, view),
+						confirmClasses: 'error',
+						cancel: t('files', 'Cancel'),
+					},
+					(decision: boolean) => {
+						resolve(decision)
+					},
+				)
+				return
+			}
+			resolve(true)
+		})
+
+		// If the user cancels the deletion, we don't want to do anything
+		if (confirm === false) {
+			showInfo(t('files', 'Deletion cancelled'))
+			return Promise.all(nodes.map(() => false))
+		}
+
 		return Promise.all(nodes.map(node => this.exec(node, view, dir)))
 	},
 
diff --git a/apps/files_sharing/src/utils/NodeShareUtils.ts b/apps/files_sharing/src/utils/NodeShareUtils.ts
new file mode 100644
index 00000000000..f81e18796ed
--- /dev/null
+++ b/apps/files_sharing/src/utils/NodeShareUtils.ts
@@ -0,0 +1,75 @@
+/**
+ * @copyright Copyright (c) 2024 John Molakvoæ <skjnldsv@protonmail.com>
+ *
+ * @author John Molakvoæ <skjnldsv@protonmail.com>
+ *
+ * @license AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+import { getCurrentUser } from '@nextcloud/auth'
+import type { Node } from '@nextcloud/files'
+import { Type } from '@nextcloud/sharing'
+
+type Share = {
+	/** The recipient display name */
+	'display-name': string
+	/** The recipient user id */
+	id: string
+	/** The share type */
+	type: Type
+}
+
+const getSharesAttribute = function(node: Node) {
+	return Object.values(node.attributes.sharees).flat() as Share[]
+}
+
+export const isNodeSharedWithMe = function(node: Node) {
+	const uid = getCurrentUser()?.uid
+	const shares = getSharesAttribute(node)
+
+	// If you're the owner, you can't share with yourself
+	if (node.owner === uid) {
+		return false
+	}
+
+	return shares.length > 0 && (
+		// If some shares are shared with you as a direct user share
+		shares.some(share => share.id === uid && share.type === Type.SHARE_TYPE_USER)
+		// Or of the file is shared with a group you're in
+		// (if it's returned by the backend, we assume you're in it)
+		|| shares.some(share => share.type === Type.SHARE_TYPE_GROUP)
+	)
+}
+
+export const isNodeSharedWithOthers = function(node: Node) {
+	const uid = getCurrentUser()?.uid
+	const shares = getSharesAttribute(node)
+
+	// If you're NOT the owner, you can't share with yourself
+	if (node.owner === uid) {
+		return false
+	}
+
+	return shares.length > 0
+		// If some shares are shared with you as a direct user share
+		&& shares.some(share => share.id !== uid && share.type !== Type.SHARE_TYPE_GROUP)
+}
+
+export const isNodeShared = function(node: Node) {
+	const shares = getSharesAttribute(node)
+	return shares.length > 0
+}