misskey/packages/backend/src/core/entities/FollowingEntityService.ts
2022-09-21 05:33:11 +09:00

99 lines
2.7 KiB
TypeScript

import { Inject, Injectable } from '@nestjs/common';
import { DI } from '@/di-symbols.js';
import type { FollowingsRepository } from '@/models/index.js';
import { awaitAll } from '@/misc/prelude/await-all.js';
import type { Packed } from '@/misc/schema.js';
import type { } from '@/models/entities/Blocking.js';
import type { User } from '@/models/entities/User.js';
import type { Following } from '@/models/entities/Following.js';
import { UserEntityService } from './UserEntityService.js';
type LocalFollowerFollowing = Following & {
followerHost: null;
followerInbox: null;
followerSharedInbox: null;
};
type RemoteFollowerFollowing = Following & {
followerHost: string;
followerInbox: string;
followerSharedInbox: string;
};
type LocalFolloweeFollowing = Following & {
followeeHost: null;
followeeInbox: null;
followeeSharedInbox: null;
};
type RemoteFolloweeFollowing = Following & {
followeeHost: string;
followeeInbox: string;
followeeSharedInbox: string;
};
@Injectable()
export class FollowingEntityService {
constructor(
@Inject(DI.followingsRepository)
private followingsRepository: FollowingsRepository,
private userEntityService: UserEntityService,
) {
}
public isLocalFollower(following: Following): following is LocalFollowerFollowing {
return following.followerHost == null;
}
public isRemoteFollower(following: Following): following is RemoteFollowerFollowing {
return following.followerHost != null;
}
public isLocalFollowee(following: Following): following is LocalFolloweeFollowing {
return following.followeeHost == null;
}
public isRemoteFollowee(following: Following): following is RemoteFolloweeFollowing {
return following.followeeHost != null;
}
public async pack(
src: Following['id'] | Following,
me?: { id: User['id'] } | null | undefined,
opts?: {
populateFollowee?: boolean;
populateFollower?: boolean;
},
): Promise<Packed<'Following'>> {
const following = typeof src === 'object' ? src : await this.followingsRepository.findOneByOrFail({ id: src });
if (opts == null) opts = {};
return await awaitAll({
id: following.id,
createdAt: following.createdAt.toISOString(),
followeeId: following.followeeId,
followerId: following.followerId,
followee: opts.populateFollowee ? this.userEntityService.pack(following.followee ?? following.followeeId, me, {
detail: true,
}) : undefined,
follower: opts.populateFollower ? this.userEntityService.pack(following.follower ?? following.followerId, me, {
detail: true,
}) : undefined,
});
}
public packMany(
followings: any[],
me?: { id: User['id'] } | null | undefined,
opts?: {
populateFollowee?: boolean;
populateFollower?: boolean;
},
) {
return Promise.all(followings.map(x => this.pack(x, me, opts)));
}
}