fix: Move content into to frontend directory

Doing this BEFORE the merge prevents a lot of merge conflicts.

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

frontend/src/api/revisions/index.ts

@@ -0,0 +1,45 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import type { RevisionDetails, RevisionMetadata } from './types'
+import { GetApiRequestBuilder } from '../common/api-request-builder/get-api-request-builder'
+import { DeleteApiRequestBuilder } from '../common/api-request-builder/delete-api-request-builder'
+
+/**
+ * Retrieves a note revision while using a cache for often retrieved revisions.
+ *
+ * @param noteId The id of the note for which to fetch the revision.
+ * @param revisionId The id of the revision to fetch.
+ * @return The revision.
+ * @throws {Error} when the api request wasn't successful.
+ */
+export const getRevision = async (noteId: string, revisionId: number): Promise<RevisionDetails> => {
+  const response = await new GetApiRequestBuilder<RevisionDetails>(
+    `notes/${noteId}/revisions/${revisionId}`
+  ).sendRequest()
+  return response.asParsedJsonObject()
+}
+
+/**
+ * Retrieves a list of all revisions stored for a given note.
+ *
+ * @param noteId The id of the note for which to look up the stored revisions.
+ * @return A list of revision ids.
+ * @throws {Error} when the api request wasn't successful.
+ */
+export const getAllRevisions = async (noteId: string): Promise<RevisionMetadata[]> => {
+  const response = await new GetApiRequestBuilder<RevisionMetadata[]>(`notes/${noteId}/revisions`).sendRequest()
+  return response.asParsedJsonObject()
+}
+
+/**
+ * Deletes all revisions for a note.
+ *
+ * @param noteIdOrAlias The id or alias of the note to delete all revisions for.
+ * @throws {Error} when the api request wasn't successful.
+ */
+export const deleteRevisionsForNote = async (noteIdOrAlias: string): Promise<void> => {
+  await new DeleteApiRequestBuilder(`notes/${noteIdOrAlias}/revisions`).sendRequest()
+}

frontend/src/api/revisions/types.ts

@@ -0,0 +1,21 @@
+/*
+ * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import type { NoteEdit } from '../notes/types'
+
+export interface RevisionDetails extends RevisionMetadata {
+  content: string
+  patch: string
+  edits: NoteEdit[]
+}
+
+export interface RevisionMetadata {
+  id: number
+  createdAt: string
+  length: number
+  authorUsernames: string[]
+  anonymousAuthorCount: number
+}