133 lines
2.5 KiB
TypeScript
133 lines
2.5 KiB
TypeScript
import $ from 'cafy';
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import ID, { transform } from '../../../../misc/cafy-id';
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import User from '../../../../models/user';
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import Following from '../../../../models/following';
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import { pack } from '../../../../models/user';
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import { getFriendIds } from '../../common/get-friends';
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import define from '../../define';
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import { ApiError } from '../../error';
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export const meta = {
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desc: {
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'ja-JP': '指定したユーザーのフォロワー一覧を取得します。',
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'en-US': 'Get followers of a user.'
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},
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tags: ['users'],
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requireCredential: false,
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params: {
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userId: {
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validator: $.optional.type(ID),
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transform: transform,
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desc: {
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'ja-JP': '対象のユーザーのID',
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'en-US': 'Target user ID'
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}
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},
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username: {
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validator: $.optional.str
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},
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host: {
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validator: $.optional.nullable.str
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},
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limit: {
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validator: $.optional.num.range(1, 100),
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default: 10
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},
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cursor: {
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validator: $.optional.type(ID),
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default: null as any,
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transform: transform,
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},
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iknow: {
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validator: $.optional.bool,
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default: false,
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}
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},
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res: {
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type: 'object',
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properties: {
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users: {
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type: 'array',
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items: {
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type: 'User',
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}
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},
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next: {
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type: 'string',
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format: 'id',
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nullable: true
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}
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}
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},
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errors: {
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noSuchUser: {
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message: 'No such user.',
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code: 'NO_SUCH_USER',
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id: '27fa5435-88ab-43de-9360-387de88727cd'
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}
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}
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};
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export default define(meta, async (ps, me) => {
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const q: any = ps.userId != null
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? { _id: ps.userId }
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: { usernameLower: ps.username.toLowerCase(), host: ps.host };
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const user = await User.findOne(q);
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if (user === null) {
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throw new ApiError(meta.errors.noSuchUser);
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}
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const query = {
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followeeId: user._id
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} as any;
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// ログインしていてかつ iknow フラグがあるとき
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if (me && ps.iknow) {
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// Get my friends
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const myFriends = await getFriendIds(me._id);
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query.followerId = {
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$in: myFriends
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};
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}
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// カーソルが指定されている場合
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if (ps.cursor) {
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query._id = {
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$lt: ps.cursor
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};
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}
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// Get followers
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const following = await Following
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.find(query, {
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limit: ps.limit + 1,
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sort: { _id: -1 }
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});
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// 「次のページ」があるかどうか
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const inStock = following.length === ps.limit + 1;
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if (inStock) {
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following.pop();
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}
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const users = await Promise.all(following.map(f => pack(f.followerId, me, { detail: true })));
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return {
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users: users,
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next: inStock ? following[following.length - 1]._id : null,
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};
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});
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