feat(trashbin): Allow emptying trash

Signed-off-by: Christopher Ng <chrng8@gmail.com>

3 files changed, 125 insertions, 1 deletions

diff --git a/apps/files_trashbin/src/fileListActions/emptyTrashAction.ts b/apps/files_trashbin/src/fileListActions/emptyTrashAction.ts
new file mode 100644
index 00000000000..7c033080c0e
--- /dev/null
+++ b/apps/files_trashbin/src/fileListActions/emptyTrashAction.ts
@@ -0,0 +1,109 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import type { Node } from '@nextcloud/files'
+
+import PQueue from 'p-queue'
+import { FileListAction } from '@nextcloud/files'
+import {
+	DialogSeverity,
+	getDialogBuilder,
+	showError,
+	showInfo,
+	showSuccess,
+	TOAST_PERMANENT_TIMEOUT,
+} from '@nextcloud/dialogs'
+
+import { deleteNode } from '../../../files/src/actions/deleteUtils.ts'
+import { logger } from '../logger.ts'
+
+type Toast = ReturnType<typeof showInfo>
+
+const queue = new PQueue({ concurrency: 5 })
+
+const showLoadingToast = (): null | Toast => {
+	const message = t('files_trashbin', 'Deleting files…')
+	let toast: null | Toast = null
+	toast = showInfo(
+		`<span class="icon icon-loading-small toast-loading-icon"></span> ${message}`,
+		{
+			isHTML: true,
+			timeout: TOAST_PERMANENT_TIMEOUT,
+			onRemove: () => {
+				toast?.hideToast()
+				toast = null
+			},
+		},
+	)
+	return toast
+}
+
+const emptyTrash = async (nodes: Node[]) => {
+	const promises = nodes.map((node) => {
+		const { promise, resolve, reject } = Promise.withResolvers<void>()
+		queue.add(async () => {
+			try {
+				await deleteNode(node)
+				resolve()
+			} catch (error) {
+				logger.error('Failed to delete node', { error, node })
+				reject(error)
+			}
+		})
+		return promise
+	})
+
+	const toast = showLoadingToast()
+	const results = await Promise.allSettled(promises)
+	if (results.some((result) => result.status === 'rejected')) {
+		toast?.hideToast()
+		showError(t('files_trashbin', 'Failed to delete all previously deleted files'))
+		return
+	}
+	toast?.hideToast()
+	showSuccess(t('files_trashbin', 'Permanently deleted all previously deleted files'))
+}
+
+export const emptyTrashAction = new FileListAction({
+	id: 'empty-trash',
+
+	displayName: () => t('files_trashbin', 'Empty deleted files'),
+	order: 0,
+
+	enabled: (view, nodes, { folder }) => {
+		if (view.id !== 'trashbin') {
+			return false
+		}
+		return nodes.length > 0 && folder.path === '/'
+	},
+
+	exec: async (view, nodes) => {
+		const dialog = getDialogBuilder(t('files_trashbin', 'Confirm permanent deletion'))
+			.setSeverity(DialogSeverity.Warning)
+			// TODO Add note for groupfolders
+			.setText(t('files_trashbin', 'Are you sure you want to permanently delete all previously deleted files? This cannot be undone.'))
+			.setButtons([
+				{
+					label: t('files_trashbin', 'Cancel'),
+					type: 'secondary',
+					callback: () => {},
+				},
+				{
+					label: t('files_trashbin', 'Empty deleted files'),
+					type: 'error',
+					callback: () => {
+						emptyTrash(nodes)
+					},
+				},
+			])
+			.build()
+
+		try {
+			await dialog.show()
+		} catch (error) {
+			// Allow throw on dialog close
+		}
+	},
+})
diff --git a/apps/files_trashbin/src/files-init.ts b/apps/files_trashbin/src/files-init.ts
index ab5d293d136..f516d6f5be5 100644
--- a/apps/files_trashbin/src/files-init.ts
+++ b/apps/files_trashbin/src/files-init.ts
@@ -6,6 +6,7 @@
 import './trashbin.scss'
 
 import { translate as t } from '@nextcloud/l10n'
+import { View, getNavigation, registerFileListAction } from '@nextcloud/files'
 import DeleteSvg from '@mdi/svg/svg/delete.svg?raw'
 
 import { getContents } from './services/trashbin'
@@ -13,7 +14,8 @@ import { columns } from './columns.ts'
 
 // Register restore action
 import './actions/restoreAction'
-import { View, getNavigation } from '@nextcloud/files'
+
+import { emptyTrashAction } from './fileListActions/emptyTrashAction.ts'
 
 const Navigation = getNavigation()
 Navigation.register(new View({
@@ -34,3 +36,5 @@ Navigation.register(new View({
 
 	getContents,
 }))
+
+registerFileListAction(emptyTrashAction)
diff --git a/apps/files_trashbin/src/logger.ts b/apps/files_trashbin/src/logger.ts
new file mode 100644
index 00000000000..064351c2fb5
--- /dev/null
+++ b/apps/files_trashbin/src/logger.ts
@@ -0,0 +1,11 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import { getLoggerBuilder } from '@nextcloud/logger'
+
+export const logger = getLoggerBuilder()
+	.setApp('files_trashbin')
+	.detectUser()
+	.build()