1 files changed, 658 insertions, 658 deletions
diff --git a/Timeline/ClientApp/src/app/http/mock/timeline.ts b/Timeline/ClientApp/src/app/http/mock/timeline.ts
index 9434f666..0330b303 100644
--- a/Timeline/ClientApp/src/app/http/mock/timeline.ts
+++ b/Timeline/ClientApp/src/app/http/mock/timeline.ts
@@ -1,658 +1,658 @@
-import { random, without, range } from 'lodash';
-
-import { BlobWithEtag, NotModified } from '../common';
-import {
-  IHttpTimelineClient,
-  HttpTimelineInfo,
-  TimelineVisibility,
-  HttpTimelineListQuery,
-  HttpTimelineNotExistError,
-  HttpTimelinePostRequest,
-  HttpTimelineNameConflictError,
-  HttpTimelinePatchRequest,
-  HttpTimelinePostInfo,
-  HttpTimelinePostContent,
-  HttpTimelinePostPostRequest,
-  HttpTimelinePostNotExistError,
-  HttpTimelineGenericPostInfo,
-} from '../timeline';
-import { HttpUser } from '../user';
-
-import { mockStorage, sha1, mockPrepare } from './common';
-import { getUser, MockUserNotExistError, checkToken } from './user';
-
-async function getTimelineNameList(): Promise<string[]> {
-  return (await mockStorage.getItem<string[]>('timelines')) ?? [];
-}
-
-async function setTimelineNameList(newOne: string[]): Promise<void> {
-  await mockStorage.setItem<string[]>('timelines', newOne);
-}
-
-type TimelinePropertyKey =
-  | 'uniqueId'
-  | 'lastModified'
-  | 'owner'
-  | 'description'
-  | 'visibility'
-  | 'members'
-  | 'currentPostId';
-
-function getTimelinePropertyKey(
-  name: string,
-  property: TimelinePropertyKey
-): string {
-  return `timeline.${name}.${property}`;
-}
-
-function getTimelinePropertyValue<T>(
-  name: string,
-  property: TimelinePropertyKey
-): Promise<T> {
-  return mockStorage.getItem<T>(getTimelinePropertyKey(name, property));
-}
-
-function setTimelinePropertyValue<T>(
-  name: string,
-  property: TimelinePropertyKey,
-  value: T
-): Promise<void> {
-  return mockStorage
-    .setItem<T>(getTimelinePropertyKey(name, property), value)
-    .then();
-}
-
-function updateTimelineLastModified(name: string): Promise<void> {
-  return setTimelinePropertyValue(
-    name,
-    'lastModified',
-    new Date().toISOString()
-  );
-}
-
-interface HttpTimelineInfoEx extends HttpTimelineInfo {
-  memberUsernames: string[];
-}
-
-function createUniqueId(): string {
-  const s = 'abcdefghijklmnopqrstuvwxz0123456789';
-  let result = '';
-  for (let i = 0; i < 16; i++) {
-    result += s[random(0, s.length - 1)];
-  }
-  return result;
-}
-
-class MockTimelineNotExistError extends Error {
-  constructor() {
-    super('Timeline not exist.');
-  }
-}
-
-class MockTimelineAlreadyExistError extends Error {
-  constructor() {
-    super('Timeline already exist.');
-  }
-}
-
-async function getTimelineInfo(name: string): Promise<HttpTimelineInfoEx> {
-  let owner: HttpUser;
-  if (name.startsWith('@')) {
-    const ownerUsername = name.substr(1);
-    owner = await getUser(ownerUsername);
-    const optionalUniqueId = await getTimelinePropertyValue<string | null>(
-      name,
-      'uniqueId'
-    );
-    if (optionalUniqueId == null) {
-      await setTimelineNameList([...(await getTimelineNameList()), name]);
-      await setTimelinePropertyValue(name, 'uniqueId', createUniqueId());
-      await updateTimelineLastModified(name);
-    }
-  } else {
-    const optionalOwnerUsername = await getTimelinePropertyValue<string | null>(
-      name,
-      'owner'
-    );
-    if (optionalOwnerUsername == null) {
-      throw new MockTimelineNotExistError();
-    } else {
-      owner = await getUser(optionalOwnerUsername);
-    }
-  }
-
-  const memberUsernames =
-    (await getTimelinePropertyValue<string[] | null>(name, 'members')) ?? [];
-  const members = await Promise.all(
-    memberUsernames.map(async (username) => {
-      return await getUser(username);
-    })
-  );
-
-  return {
-    name,
-    uniqueId: await getTimelinePropertyValue<string>(name, 'uniqueId'),
-    owner,
-    description:
-      (await getTimelinePropertyValue<string | null>(name, 'description')) ??
-      '',
-    visibility:
-      (await getTimelinePropertyValue<TimelineVisibility | null>(
-        name,
-        'visibility'
-      )) ?? 'Register',
-    lastModified: new Date(
-      await getTimelinePropertyValue<string>(name, 'lastModified')
-    ),
-    members,
-    memberUsernames,
-  };
-}
-
-async function createTimeline(name: string, owner: string): Promise<void> {
-  const optionalOwnerUsername = await getTimelinePropertyValue<string | null>(
-    name,
-    'owner'
-  );
-  if (optionalOwnerUsername != null) {
-    throw new MockTimelineAlreadyExistError();
-  }
-
-  await setTimelineNameList([...(await getTimelineNameList()), name]);
-  await setTimelinePropertyValue(name, 'uniqueId', createUniqueId());
-  await setTimelinePropertyValue(name, 'owner', owner);
-  await updateTimelineLastModified(name);
-}
-
-type TimelinePostPropertyKey =
-  | 'type'
-  | 'data'
-  | 'etag'
-  | 'author'
-  | 'time'
-  | 'lastUpdated';
-
-function getTimelinePostPropertyKey(
-  timelineName: string,
-  id: number,
-  propertyKey: TimelinePostPropertyKey
-): string {
-  return `timeline.${timelineName}.posts.${id}.${propertyKey}`;
-}
-
-function getTimelinePostPropertyValue<T>(
-  timelineName: string,
-  id: number,
-  propertyKey: TimelinePostPropertyKey
-): Promise<T> {
-  return mockStorage.getItem<T>(
-    getTimelinePostPropertyKey(timelineName, id, propertyKey)
-  );
-}
-
-function setTimelinePostPropertyValue<T>(
-  timelineName: string,
-  id: number,
-  propertyKey: TimelinePostPropertyKey,
-  value: T
-): Promise<T> {
-  return mockStorage.setItem(
-    getTimelinePostPropertyKey(timelineName, id, propertyKey),
-    value
-  );
-}
-
-function removeTimelinePostProperty(
-  timelineName: string,
-  id: number,
-  propertyKey: TimelinePostPropertyKey
-): Promise<void> {
-  return mockStorage.removeItem(
-    getTimelinePostPropertyKey(timelineName, id, propertyKey)
-  );
-}
-
-async function getTimelinePostInfo(
-  timelineName: string,
-  id: number
-): Promise<HttpTimelineGenericPostInfo> {
-  const currentPostId = await getTimelinePropertyValue<number | null>(
-    timelineName,
-    'currentPostId'
-  );
-  if (currentPostId == null || id > currentPostId) {
-    throw new HttpTimelinePostNotExistError();
-  }
-
-  const type = await getTimelinePostPropertyValue<string | null>(
-    timelineName,
-    id,
-    'type'
-  );
-
-  if (type == null) {
-    return {
-      id,
-      author: await getUser(
-        await getTimelinePostPropertyValue<string>(timelineName, id, 'author')
-      ),
-      time: new Date(
-        await getTimelinePostPropertyValue<string>(timelineName, id, 'time')
-      ),
-      lastUpdated: new Date(
-        await getTimelinePostPropertyValue<string>(
-          timelineName,
-          id,
-          'lastUpdated'
-        )
-      ),
-      deleted: true,
-    };
-  } else {
-    let content: HttpTimelinePostContent;
-    if (type === 'text') {
-      content = {
-        type: 'text',
-        text: await getTimelinePostPropertyValue(timelineName, id, 'data'),
-      };
-    } else {
-      content = {
-        type: 'image',
-      };
-    }
-
-    return {
-      id,
-      author: await getUser(
-        await getTimelinePostPropertyValue<string>(timelineName, id, 'author')
-      ),
-      time: new Date(
-        await getTimelinePostPropertyValue<string>(timelineName, id, 'time')
-      ),
-      lastUpdated: new Date(
-        await getTimelinePostPropertyValue<string>(
-          timelineName,
-          id,
-          'lastUpdated'
-        )
-      ),
-      content,
-      deleted: false,
-    };
-  }
-}
-
-export class MockHttpTimelineClient implements IHttpTimelineClient {
-  async listTimeline(
-    query: HttpTimelineListQuery
-  ): Promise<HttpTimelineInfo[]> {
-    await mockPrepare('timeline.list');
-    return (
-      await Promise.all(
-        (await getTimelineNameList()).map((name) => getTimelineInfo(name))
-      )
-    ).filter((timeline) => {
-      if (
-        query.visibility != null &&
-        query.visibility !== timeline.visibility
-      ) {
-        return false;
-      }
-      if (query.relate != null) {
-        if (query.relateType === 'own') {
-          if (timeline.owner.username !== query.relate) {
-            return false;
-          }
-        } else if (query.relateType === 'join') {
-          if (!timeline.memberUsernames.includes(query.relate)) {
-            return false;
-          }
-        } else if (
-          timeline.owner.username !== query.relate &&
-          !timeline.memberUsernames.includes(query.relate)
-        ) {
-          return false;
-        }
-      }
-      return true;
-    });
-  }
-
-  getTimeline(timelineName: string): Promise<HttpTimelineInfo>;
-  getTimeline(
-    timelineName: string,
-    query: {
-      checkUniqueId?: string;
-    }
-  ): Promise<HttpTimelineInfo>;
-  getTimeline(
-    timelineName: string,
-    query: {
-      checkUniqueId?: string;
-      ifModifiedSince: Date;
-    }
-  ): Promise<HttpTimelineInfo | NotModified>;
-  async getTimeline(
-    timelineName: string,
-    query?: {
-      checkUniqueId?: string;
-      ifModifiedSince?: Date;
-    }
-  ): Promise<HttpTimelineInfo | NotModified> {
-    await mockPrepare('timeline.get');
-    try {
-      const timeline = await getTimelineInfo(timelineName);
-      if (query != null && query.ifModifiedSince != null) {
-        if (timeline.lastModified >= query.ifModifiedSince) {
-          return timeline;
-        } else {
-          if (
-            query.checkUniqueId != null &&
-            timeline.uniqueId != query.checkUniqueId
-          ) {
-            return timeline;
-          } else {
-            return new NotModified();
-          }
-        }
-      }
-
-      return timeline;
-    } catch (e) {
-      if (
-        e instanceof MockTimelineNotExistError ||
-        e instanceof MockUserNotExistError
-      ) {
-        throw new HttpTimelineNotExistError();
-      }
-      throw e;
-    }
-  }
-
-  async postTimeline(
-    req: HttpTimelinePostRequest,
-    token: string
-  ): Promise<HttpTimelineInfo> {
-    await mockPrepare('timeline.post');
-    const user = checkToken(token);
-    try {
-      await createTimeline(req.name, user);
-    } catch (e) {
-      if (e instanceof MockTimelineAlreadyExistError) {
-        throw new HttpTimelineNameConflictError();
-      }
-      throw e;
-    }
-    return await getTimelineInfo(req.name);
-  }
-
-  async patchTimeline(
-    timelineName: string,
-    req: HttpTimelinePatchRequest,
-    _token: string
-  ): Promise<HttpTimelineInfo> {
-    await mockPrepare('timeline.patch');
-    let modified = false;
-    if (req.description != null) {
-      modified = true;
-      await setTimelinePropertyValue(
-        timelineName,
-        'description',
-        req.description
-      );
-    }
-    if (req.visibility != null) {
-      modified = true;
-      await setTimelinePropertyValue(
-        timelineName,
-        'visibility',
-        req.visibility
-      );
-    }
-    if (modified) {
-      await updateTimelineLastModified(timelineName);
-    }
-    return await getTimelineInfo(timelineName);
-  }
-
-  async deleteTimeline(timelineName: string, _token: string): Promise<void> {
-    await mockPrepare('timeline.delete');
-    await setTimelineNameList(
-      without(await getTimelineNameList(), timelineName)
-    );
-    await mockStorage.removeItem(
-      getTimelinePropertyKey(timelineName, 'uniqueId')
-    );
-
-    // TODO: remove other things
-  }
-
-  async memberPut(
-    timelineName: string,
-    username: string,
-    _token: string
-  ): Promise<void> {
-    await mockPrepare('timeline.member.put');
-    const oldMembers =
-      (await getTimelinePropertyValue<string[] | null>(
-        timelineName,
-        'members'
-      )) ?? [];
-    if (!oldMembers.includes(username)) {
-      await setTimelinePropertyValue(timelineName, 'members', [
-        ...oldMembers,
-        username,
-      ]);
-      await updateTimelineLastModified(timelineName);
-    }
-  }
-
-  async memberDelete(
-    timelineName: string,
-    username: string,
-    _token: string
-  ): Promise<void> {
-    await mockPrepare('timeline.member.delete');
-    const oldMembers =
-      (await getTimelinePropertyValue<string[] | null>(
-        timelineName,
-        'members'
-      )) ?? [];
-    if (oldMembers.includes(username)) {
-      await setTimelinePropertyValue(
-        timelineName,
-        'members',
-        without(oldMembers, username)
-      );
-      await updateTimelineLastModified(timelineName);
-    }
-  }
-
-  listPost(
-    timelineName: string,
-    token?: string
-  ): Promise<HttpTimelinePostInfo[]>;
-  listPost(
-    timelineName: string,
-    token: string | undefined,
-    query: {
-      modifiedSince?: Date;
-      includeDeleted?: false;
-    }
-  ): Promise<HttpTimelinePostInfo[]>;
-  listPost(
-    timelineName: string,
-    token: string | undefined,
-    query: {
-      modifiedSince?: Date;
-      includeDeleted: true;
-    }
-  ): Promise<HttpTimelineGenericPostInfo[]>;
-  async listPost(
-    timelineName: string,
-    _token?: string,
-    query?: {
-      modifiedSince?: Date;
-      includeDeleted?: boolean;
-    }
-  ): Promise<HttpTimelineGenericPostInfo[]> {
-    await mockPrepare('timeline.post.list');
-    // TODO: Permission check.
-
-    const currentPostId = await getTimelinePropertyValue<number | null>(
-      timelineName,
-      'currentPostId'
-    );
-
-    return (
-      await Promise.all(
-        range(1, currentPostId == null ? 1 : currentPostId + 1).map(
-          async (id) => {
-            return await getTimelinePostInfo(timelineName, id);
-          }
-        )
-      )
-    )
-      .filter((post) => {
-        if (query?.includeDeleted !== true && post.deleted) {
-          return false;
-        }
-        return true;
-      })
-      .filter((post) => {
-        if (query?.modifiedSince != null) {
-          return post.lastUpdated >= query.modifiedSince;
-        }
-        return true;
-      });
-  }
-
-  getPostData(
-    timelineName: string,
-    postId: number,
-    token: string
-  ): Promise<BlobWithEtag>;
-  async getPostData(
-    timelineName: string,
-    postId: number,
-    _token?: string,
-    etag?: string
-  ): Promise<BlobWithEtag | NotModified> {
-    await mockPrepare('timeline.post.data.get');
-    // TODO: Permission check.
-
-    const optionalSavedEtag = await getTimelinePostPropertyValue<string>(
-      timelineName,
-      postId,
-      'etag'
-    );
-
-    if (optionalSavedEtag == null) {
-      const optionalType = await getTimelinePostPropertyValue<string>(
-        timelineName,
-        postId,
-        'type'
-      );
-
-      if (optionalType != null) {
-        throw new Error('Post of this type has no data.');
-      } else {
-        throw new HttpTimelinePostNotExistError();
-      }
-    }
-
-    if (etag === optionalSavedEtag) {
-      return new NotModified();
-    }
-
-    return {
-      data: await getTimelinePostPropertyValue<Blob>(
-        timelineName,
-        postId,
-        'data'
-      ),
-      etag: optionalSavedEtag,
-    };
-  }
-
-  async postPost(
-    timelineName: string,
-    req: HttpTimelinePostPostRequest,
-    token: string
-  ): Promise<HttpTimelinePostInfo> {
-    await mockPrepare('timeline.post.post');
-    const user = checkToken(token);
-
-    const savedId = await getTimelinePropertyValue<number | null>(
-      timelineName,
-      'currentPostId'
-    );
-    const id = savedId ? savedId + 1 : 1;
-    await setTimelinePropertyValue(timelineName, 'currentPostId', id);
-
-    await setTimelinePostPropertyValue(timelineName, id, 'author', user);
-
-    const currentTimeString = new Date().toISOString();
-    await setTimelinePostPropertyValue(
-      timelineName,
-      id,
-      'lastUpdated',
-      currentTimeString
-    );
-
-    await setTimelinePostPropertyValue(
-      timelineName,
-      id,
-      'time',
-      req.time != null ? req.time.toISOString() : currentTimeString
-    );
-
-    const { content } = req;
-    if (content.type === 'text') {
-      await setTimelinePostPropertyValue(timelineName, id, 'type', 'text');
-      await setTimelinePostPropertyValue(
-        timelineName,
-        id,
-        'data',
-        content.text
-      );
-    } else {
-      await setTimelinePostPropertyValue(timelineName, id, 'type', 'image');
-      await setTimelinePostPropertyValue(
-        timelineName,
-        id,
-        'data',
-        content.data
-      );
-      await setTimelinePostPropertyValue(
-        timelineName,
-        id,
-        'etag',
-        await sha1(content.data)
-      );
-    }
-
-    return (await getTimelinePostInfo(
-      timelineName,
-      id
-    )) as HttpTimelinePostInfo;
-  }
-
-  async deletePost(
-    timelineName: string,
-    postId: number,
-    _token: string
-  ): Promise<void> {
-    await mockPrepare('timeline.post.delete');
-    // TODO: permission check
-    await removeTimelinePostProperty(timelineName, postId, 'type');
-    await removeTimelinePostProperty(timelineName, postId, 'data');
-    await removeTimelinePostProperty(timelineName, postId, 'etag');
-    await setTimelinePostPropertyValue(
-      timelineName,
-      postId,
-      'lastUpdated',
-      new Date().toISOString()
-    );
-  }
-}
+import { random, without, range } from "lodash";
+
+import { BlobWithEtag, NotModified } from "../common";
+import {
+  IHttpTimelineClient,
+  HttpTimelineInfo,
+  TimelineVisibility,
+  HttpTimelineListQuery,
+  HttpTimelineNotExistError,
+  HttpTimelinePostRequest,
+  HttpTimelineNameConflictError,
+  HttpTimelinePatchRequest,
+  HttpTimelinePostInfo,
+  HttpTimelinePostContent,
+  HttpTimelinePostPostRequest,
+  HttpTimelinePostNotExistError,
+  HttpTimelineGenericPostInfo,
+} from "../timeline";
+import { HttpUser } from "../user";
+
+import { mockStorage, sha1, mockPrepare } from "./common";
+import { getUser, MockUserNotExistError, checkToken } from "./user";
+
+async function getTimelineNameList(): Promise<string[]> {
+  return (await mockStorage.getItem<string[]>("timelines")) ?? [];
+}
+
+async function setTimelineNameList(newOne: string[]): Promise<void> {
+  await mockStorage.setItem<string[]>("timelines", newOne);
+}
+
+type TimelinePropertyKey =
+  | "uniqueId"
+  | "lastModified"
+  | "owner"
+  | "description"
+  | "visibility"
+  | "members"
+  | "currentPostId";
+
+function getTimelinePropertyKey(
+  name: string,
+  property: TimelinePropertyKey
+): string {
+  return `timeline.${name}.${property}`;
+}
+
+function getTimelinePropertyValue<T>(
+  name: string,
+  property: TimelinePropertyKey
+): Promise<T> {
+  return mockStorage.getItem<T>(getTimelinePropertyKey(name, property));
+}
+
+function setTimelinePropertyValue<T>(
+  name: string,
+  property: TimelinePropertyKey,
+  value: T
+): Promise<void> {
+  return mockStorage
+    .setItem<T>(getTimelinePropertyKey(name, property), value)
+    .then();
+}
+
+function updateTimelineLastModified(name: string): Promise<void> {
+  return setTimelinePropertyValue(
+    name,
+    "lastModified",
+    new Date().toISOString()
+  );
+}
+
+interface HttpTimelineInfoEx extends HttpTimelineInfo {
+  memberUsernames: string[];
+}
+
+function createUniqueId(): string {
+  const s = "abcdefghijklmnopqrstuvwxz0123456789";
+  let result = "";
+  for (let i = 0; i < 16; i++) {
+    result += s[random(0, s.length - 1)];
+  }
+  return result;
+}
+
+class MockTimelineNotExistError extends Error {
+  constructor() {
+    super("Timeline not exist.");
+  }
+}
+
+class MockTimelineAlreadyExistError extends Error {
+  constructor() {
+    super("Timeline already exist.");
+  }
+}
+
+async function getTimelineInfo(name: string): Promise<HttpTimelineInfoEx> {
+  let owner: HttpUser;
+  if (name.startsWith("@")) {
+    const ownerUsername = name.substr(1);
+    owner = await getUser(ownerUsername);
+    const optionalUniqueId = await getTimelinePropertyValue<string | null>(
+      name,
+      "uniqueId"
+    );
+    if (optionalUniqueId == null) {
+      await setTimelineNameList([...(await getTimelineNameList()), name]);
+      await setTimelinePropertyValue(name, "uniqueId", createUniqueId());
+      await updateTimelineLastModified(name);
+    }
+  } else {
+    const optionalOwnerUsername = await getTimelinePropertyValue<string | null>(
+      name,
+      "owner"
+    );
+    if (optionalOwnerUsername == null) {
+      throw new MockTimelineNotExistError();
+    } else {
+      owner = await getUser(optionalOwnerUsername);
+    }
+  }
+
+  const memberUsernames =
+    (await getTimelinePropertyValue<string[] | null>(name, "members")) ?? [];
+  const members = await Promise.all(
+    memberUsernames.map(async (username) => {
+      return await getUser(username);
+    })
+  );
+
+  return {
+    name,
+    uniqueId: await getTimelinePropertyValue<string>(name, "uniqueId"),
+    owner,
+    description:
+      (await getTimelinePropertyValue<string | null>(name, "description")) ??
+      "",
+    visibility:
+      (await getTimelinePropertyValue<TimelineVisibility | null>(
+        name,
+        "visibility"
+      )) ?? "Register",
+    lastModified: new Date(
+      await getTimelinePropertyValue<string>(name, "lastModified")
+    ),
+    members,
+    memberUsernames,
+  };
+}
+
+async function createTimeline(name: string, owner: string): Promise<void> {
+  const optionalOwnerUsername = await getTimelinePropertyValue<string | null>(
+    name,
+    "owner"
+  );
+  if (optionalOwnerUsername != null) {
+    throw new MockTimelineAlreadyExistError();
+  }
+
+  await setTimelineNameList([...(await getTimelineNameList()), name]);
+  await setTimelinePropertyValue(name, "uniqueId", createUniqueId());
+  await setTimelinePropertyValue(name, "owner", owner);
+  await updateTimelineLastModified(name);
+}
+
+type TimelinePostPropertyKey =
+  | "type"
+  | "data"
+  | "etag"
+  | "author"
+  | "time"
+  | "lastUpdated";
+
+function getTimelinePostPropertyKey(
+  timelineName: string,
+  id: number,
+  propertyKey: TimelinePostPropertyKey
+): string {
+  return `timeline.${timelineName}.posts.${id}.${propertyKey}`;
+}
+
+function getTimelinePostPropertyValue<T>(
+  timelineName: string,
+  id: number,
+  propertyKey: TimelinePostPropertyKey
+): Promise<T> {
+  return mockStorage.getItem<T>(
+    getTimelinePostPropertyKey(timelineName, id, propertyKey)
+  );
+}
+
+function setTimelinePostPropertyValue<T>(
+  timelineName: string,
+  id: number,
+  propertyKey: TimelinePostPropertyKey,
+  value: T
+): Promise<T> {
+  return mockStorage.setItem(
+    getTimelinePostPropertyKey(timelineName, id, propertyKey),
+    value
+  );
+}
+
+function removeTimelinePostProperty(
+  timelineName: string,
+  id: number,
+  propertyKey: TimelinePostPropertyKey
+): Promise<void> {
+  return mockStorage.removeItem(
+    getTimelinePostPropertyKey(timelineName, id, propertyKey)
+  );
+}
+
+async function getTimelinePostInfo(
+  timelineName: string,
+  id: number
+): Promise<HttpTimelineGenericPostInfo> {
+  const currentPostId = await getTimelinePropertyValue<number | null>(
+    timelineName,
+    "currentPostId"
+  );
+  if (currentPostId == null || id > currentPostId) {
+    throw new HttpTimelinePostNotExistError();
+  }
+
+  const type = await getTimelinePostPropertyValue<string | null>(
+    timelineName,
+    id,
+    "type"
+  );
+
+  if (type == null) {
+    return {
+      id,
+      author: await getUser(
+        await getTimelinePostPropertyValue<string>(timelineName, id, "author")
+      ),
+      time: new Date(
+        await getTimelinePostPropertyValue<string>(timelineName, id, "time")
+      ),
+      lastUpdated: new Date(
+        await getTimelinePostPropertyValue<string>(
+          timelineName,
+          id,
+          "lastUpdated"
+        )
+      ),
+      deleted: true,
+    };
+  } else {
+    let content: HttpTimelinePostContent;
+    if (type === "text") {
+      content = {
+        type: "text",
+        text: await getTimelinePostPropertyValue(timelineName, id, "data"),
+      };
+    } else {
+      content = {
+        type: "image",
+      };
+    }
+
+    return {
+      id,
+      author: await getUser(
+        await getTimelinePostPropertyValue<string>(timelineName, id, "author")
+      ),
+      time: new Date(
+        await getTimelinePostPropertyValue<string>(timelineName, id, "time")
+      ),
+      lastUpdated: new Date(
+        await getTimelinePostPropertyValue<string>(
+          timelineName,
+          id,
+          "lastUpdated"
+        )
+      ),
+      content,
+      deleted: false,
+    };
+  }
+}
+
+export class MockHttpTimelineClient implements IHttpTimelineClient {
+  async listTimeline(
+    query: HttpTimelineListQuery
+  ): Promise<HttpTimelineInfo[]> {
+    await mockPrepare("timeline.list");
+    return (
+      await Promise.all(
+        (await getTimelineNameList()).map((name) => getTimelineInfo(name))
+      )
+    ).filter((timeline) => {
+      if (
+        query.visibility != null &&
+        query.visibility !== timeline.visibility
+      ) {
+        return false;
+      }
+      if (query.relate != null) {
+        if (query.relateType === "own") {
+          if (timeline.owner.username !== query.relate) {
+            return false;
+          }
+        } else if (query.relateType === "join") {
+          if (!timeline.memberUsernames.includes(query.relate)) {
+            return false;
+          }
+        } else if (
+          timeline.owner.username !== query.relate &&
+          !timeline.memberUsernames.includes(query.relate)
+        ) {
+          return false;
+        }
+      }
+      return true;
+    });
+  }
+
+  getTimeline(timelineName: string): Promise<HttpTimelineInfo>;
+  getTimeline(
+    timelineName: string,
+    query: {
+      checkUniqueId?: string;
+    }
+  ): Promise<HttpTimelineInfo>;
+  getTimeline(
+    timelineName: string,
+    query: {
+      checkUniqueId?: string;
+      ifModifiedSince: Date;
+    }
+  ): Promise<HttpTimelineInfo | NotModified>;
+  async getTimeline(
+    timelineName: string,
+    query?: {
+      checkUniqueId?: string;
+      ifModifiedSince?: Date;
+    }
+  ): Promise<HttpTimelineInfo | NotModified> {
+    await mockPrepare("timeline.get");
+    try {
+      const timeline = await getTimelineInfo(timelineName);
+      if (query != null && query.ifModifiedSince != null) {
+        if (timeline.lastModified >= query.ifModifiedSince) {
+          return timeline;
+        } else {
+          if (
+            query.checkUniqueId != null &&
+            timeline.uniqueId != query.checkUniqueId
+          ) {
+            return timeline;
+          } else {
+            return new NotModified();
+          }
+        }
+      }
+
+      return timeline;
+    } catch (e) {
+      if (
+        e instanceof MockTimelineNotExistError ||
+        e instanceof MockUserNotExistError
+      ) {
+        throw new HttpTimelineNotExistError();
+      }
+      throw e;
+    }
+  }
+
+  async postTimeline(
+    req: HttpTimelinePostRequest,
+    token: string
+  ): Promise<HttpTimelineInfo> {
+    await mockPrepare("timeline.post");
+    const user = checkToken(token);
+    try {
+      await createTimeline(req.name, user);
+    } catch (e) {
+      if (e instanceof MockTimelineAlreadyExistError) {
+        throw new HttpTimelineNameConflictError();
+      }
+      throw e;
+    }
+    return await getTimelineInfo(req.name);
+  }
+
+  async patchTimeline(
+    timelineName: string,
+    req: HttpTimelinePatchRequest,
+    _token: string
+  ): Promise<HttpTimelineInfo> {
+    await mockPrepare("timeline.patch");
+    let modified = false;
+    if (req.description != null) {
+      modified = true;
+      await setTimelinePropertyValue(
+        timelineName,
+        "description",
+        req.description
+      );
+    }
+    if (req.visibility != null) {
+      modified = true;
+      await setTimelinePropertyValue(
+        timelineName,
+        "visibility",
+        req.visibility
+      );
+    }
+    if (modified) {
+      await updateTimelineLastModified(timelineName);
+    }
+    return await getTimelineInfo(timelineName);
+  }
+
+  async deleteTimeline(timelineName: string, _token: string): Promise<void> {
+    await mockPrepare("timeline.delete");
+    await setTimelineNameList(
+      without(await getTimelineNameList(), timelineName)
+    );
+    await mockStorage.removeItem(
+      getTimelinePropertyKey(timelineName, "uniqueId")
+    );
+
+    // TODO: remove other things
+  }
+
+  async memberPut(
+    timelineName: string,
+    username: string,
+    _token: string
+  ): Promise<void> {
+    await mockPrepare("timeline.member.put");
+    const oldMembers =
+      (await getTimelinePropertyValue<string[] | null>(
+        timelineName,
+        "members"
+      )) ?? [];
+    if (!oldMembers.includes(username)) {
+      await setTimelinePropertyValue(timelineName, "members", [
+        ...oldMembers,
+        username,
+      ]);
+      await updateTimelineLastModified(timelineName);
+    }
+  }
+
+  async memberDelete(
+    timelineName: string,
+    username: string,
+    _token: string
+  ): Promise<void> {
+    await mockPrepare("timeline.member.delete");
+    const oldMembers =
+      (await getTimelinePropertyValue<string[] | null>(
+        timelineName,
+        "members"
+      )) ?? [];
+    if (oldMembers.includes(username)) {
+      await setTimelinePropertyValue(
+        timelineName,
+        "members",
+        without(oldMembers, username)
+      );
+      await updateTimelineLastModified(timelineName);
+    }
+  }
+
+  listPost(
+    timelineName: string,
+    token?: string
+  ): Promise<HttpTimelinePostInfo[]>;
+  listPost(
+    timelineName: string,
+    token: string | undefined,
+    query: {
+      modifiedSince?: Date;
+      includeDeleted?: false;
+    }
+  ): Promise<HttpTimelinePostInfo[]>;
+  listPost(
+    timelineName: string,
+    token: string | undefined,
+    query: {
+      modifiedSince?: Date;
+      includeDeleted: true;
+    }
+  ): Promise<HttpTimelineGenericPostInfo[]>;
+  async listPost(
+    timelineName: string,
+    _token?: string,
+    query?: {
+      modifiedSince?: Date;
+      includeDeleted?: boolean;
+    }
+  ): Promise<HttpTimelineGenericPostInfo[]> {
+    await mockPrepare("timeline.post.list");
+    // TODO: Permission check.
+
+    const currentPostId = await getTimelinePropertyValue<number | null>(
+      timelineName,
+      "currentPostId"
+    );
+
+    return (
+      await Promise.all(
+        range(1, currentPostId == null ? 1 : currentPostId + 1).map(
+          async (id) => {
+            return await getTimelinePostInfo(timelineName, id);
+          }
+        )
+      )
+    )
+      .filter((post) => {
+        if (query?.includeDeleted !== true && post.deleted) {
+          return false;
+        }
+        return true;
+      })
+      .filter((post) => {
+        if (query?.modifiedSince != null) {
+          return post.lastUpdated >= query.modifiedSince;
+        }
+        return true;
+      });
+  }
+
+  getPostData(
+    timelineName: string,
+    postId: number,
+    token: string
+  ): Promise<BlobWithEtag>;
+  async getPostData(
+    timelineName: string,
+    postId: number,
+    _token?: string,
+    etag?: string
+  ): Promise<BlobWithEtag | NotModified> {
+    await mockPrepare("timeline.post.data.get");
+    // TODO: Permission check.
+
+    const optionalSavedEtag = await getTimelinePostPropertyValue<string>(
+      timelineName,
+      postId,
+      "etag"
+    );
+
+    if (optionalSavedEtag == null) {
+      const optionalType = await getTimelinePostPropertyValue<string>(
+        timelineName,
+        postId,
+        "type"
+      );
+
+      if (optionalType != null) {
+        throw new Error("Post of this type has no data.");
+      } else {
+        throw new HttpTimelinePostNotExistError();
+      }
+    }
+
+    if (etag === optionalSavedEtag) {
+      return new NotModified();
+    }
+
+    return {
+      data: await getTimelinePostPropertyValue<Blob>(
+        timelineName,
+        postId,
+        "data"
+      ),
+      etag: optionalSavedEtag,
+    };
+  }
+
+  async postPost(
+    timelineName: string,
+    req: HttpTimelinePostPostRequest,
+    token: string
+  ): Promise<HttpTimelinePostInfo> {
+    await mockPrepare("timeline.post.post");
+    const user = checkToken(token);
+
+    const savedId = await getTimelinePropertyValue<number | null>(
+      timelineName,
+      "currentPostId"
+    );
+    const id = savedId ? savedId + 1 : 1;
+    await setTimelinePropertyValue(timelineName, "currentPostId", id);
+
+    await setTimelinePostPropertyValue(timelineName, id, "author", user);
+
+    const currentTimeString = new Date().toISOString();
+    await setTimelinePostPropertyValue(
+      timelineName,
+      id,
+      "lastUpdated",
+      currentTimeString
+    );
+
+    await setTimelinePostPropertyValue(
+      timelineName,
+      id,
+      "time",
+      req.time != null ? req.time.toISOString() : currentTimeString
+    );
+
+    const { content } = req;
+    if (content.type === "text") {
+      await setTimelinePostPropertyValue(timelineName, id, "type", "text");
+      await setTimelinePostPropertyValue(
+        timelineName,
+        id,
+        "data",
+        content.text
+      );
+    } else {
+      await setTimelinePostPropertyValue(timelineName, id, "type", "image");
+      await setTimelinePostPropertyValue(
+        timelineName,
+        id,
+        "data",
+        content.data
+      );
+      await setTimelinePostPropertyValue(
+        timelineName,
+        id,
+        "etag",
+        await sha1(content.data)
+      );
+    }
+
+    return (await getTimelinePostInfo(
+      timelineName,
+      id
+    )) as HttpTimelinePostInfo;
+  }
+
+  async deletePost(
+    timelineName: string,
+    postId: number,
+    _token: string
+  ): Promise<void> {
+    await mockPrepare("timeline.post.delete");
+    // TODO: permission check
+    await removeTimelinePostProperty(timelineName, postId, "type");
+    await removeTimelinePostProperty(timelineName, postId, "data");
+    await removeTimelinePostProperty(timelineName, postId, "etag");
+    await setTimelinePostPropertyValue(
+      timelineName,
+      postId,
+      "lastUpdated",
+      new Date().toISOString()
+    );
+  }
+}