Sharkey/packages/backend/src/core/entities/ChannelEntityService.ts

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import { Inject, Injectable } from '@nestjs/common';
import { DI } from '@/di-symbols.js';
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import type { ChannelFollowingsRepository, ChannelsRepository, DriveFilesRepository, NoteUnreadsRepository } from '@/models/index.js';
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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 { Channel } from '@/models/entities/Channel.js';
import { UserEntityService } from './UserEntityService.js';
import { DriveFileEntityService } from './DriveFileEntityService.js';
import { bindThis } from '@/decorators.js';
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@Injectable()
export class ChannelEntityService {
constructor(
@Inject(DI.channelsRepository)
private channelsRepository: ChannelsRepository,
@Inject(DI.channelFollowingsRepository)
private channelFollowingsRepository: ChannelFollowingsRepository,
@Inject(DI.noteUnreadsRepository)
private noteUnreadsRepository: NoteUnreadsRepository,
@Inject(DI.driveFilesRepository)
private driveFilesRepository: DriveFilesRepository,
private userEntityService: UserEntityService,
private driveFileEntityService: DriveFileEntityService,
) {
}
@bindThis
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public async pack(
src: Channel['id'] | Channel,
me?: { id: User['id'] } | null | undefined,
): Promise<Packed<'Channel'>> {
const channel = typeof src === 'object' ? src : await this.channelsRepository.findOneByOrFail({ id: src });
const meId = me ? me.id : null;
const banner = channel.bannerId ? await this.driveFilesRepository.findOneBy({ id: channel.bannerId }) : null;
const hasUnreadNote = meId ? (await this.noteUnreadsRepository.findOneBy({ noteChannelId: channel.id, userId: meId })) != null : undefined;
const following = meId ? await this.channelFollowingsRepository.findOneBy({
followerId: meId,
followeeId: channel.id,
}) : null;
return {
id: channel.id,
createdAt: channel.createdAt.toISOString(),
lastNotedAt: channel.lastNotedAt ? channel.lastNotedAt.toISOString() : null,
name: channel.name,
description: channel.description,
userId: channel.userId,
bannerUrl: banner ? this.driveFileEntityService.getPublicUrl(banner, false) : null,
usersCount: channel.usersCount,
notesCount: channel.notesCount,
...(me ? {
isFollowing: following != null,
hasUnreadNote,
} : {}),
};
}
}