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/*
* SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Inject, Injectable } from '@nestjs/common';
import { IsNull } from 'typeorm';
import { DI } from '@/di-symbols.js';
import { QueryService } from '@/core/QueryService.js';
import type { MiChannel, MiNote, NotesRepository } from '@/models/_.js';
import type { MiLocalUser, MiUser } from '@/models/User.js';
import { ApiError } from '../error.js';
/**
* Utility service for accessing data with Mastodon semantics
*/
@Injectable()
export class MastodonDataService {
constructor(
@Inject(DI.notesRepository)
private readonly notesRepository: NotesRepository,
@Inject(QueryService)
private readonly queryService: QueryService,
) {}
/**
* Fetches a note in the context of the current user, and throws an exception if not found.
*/
public async requireNote<Rel extends NoteRelations = NoteRelations>(noteId: string, me: MiLocalUser | null | undefined, relations?: Rel): Promise<NoteWithRelations<Rel>> {
const note = await this.getNote(noteId, me, relations);
if (!note) {
throw new ApiError({
message: 'No such note.',
code: 'NO_SUCH_NOTE',
id: '24fcbfc6-2e37-42b6-8388-c29b3861a08d',
kind: 'client',
httpStatusCode: 404,
});
}
return note;
}
/**
* Fetches a note in the context of the current user.
*/
public async getNote<Rel extends NoteRelations = NoteRelations>(noteId: string, me: MiLocalUser | null | undefined, relations?: Rel): Promise<NoteWithRelations<Rel> | null> {
// Root query: note + required dependencies
const query = this.notesRepository
.createQueryBuilder('note')
.where('note.id = :noteId', { noteId });
// Load relations
if (relations) {
if (relations.reply) {
query.leftJoinAndSelect('note.reply', 'reply');
if (typeof(relations.reply) === 'object') {
if (relations.reply.reply) query.leftJoinAndSelect('reply.reply', 'replyReply');
if (relations.reply.renote) query.leftJoinAndSelect('reply.renote', 'replyRenote');
if (relations.reply.user) query.innerJoinAndSelect('reply.user', 'replyUser');
if (relations.reply.channel) query.leftJoinAndSelect('reply.channel', 'replyChannel');
}
}
if (relations.renote) {
query.leftJoinAndSelect('note.renote', 'renote');
if (typeof(relations.renote) === 'object') {
if (relations.renote.reply) query.leftJoinAndSelect('renote.reply', 'renoteReply');
if (relations.renote.renote) query.leftJoinAndSelect('renote.renote', 'renoteRenote');
if (relations.renote.user) query.innerJoinAndSelect('renote.user', 'renoteUser');
if (relations.renote.channel) query.leftJoinAndSelect('renote.channel', 'renoteChannel');
}
}
if (relations.user) {
query.innerJoinAndSelect('note.user', 'user');
}
if (relations.channel) {
query.leftJoinAndSelect('note.channel', 'channel');
}
}
// Restrict visibility
this.queryService.generateVisibilityQuery(query, me);
if (me) {
this.queryService.generateBlockedUserQueryForNotes(query, me);
}
return await query.getOne() as NoteWithRelations<Rel> | null;
}
/**
* Checks where the current user has made a reblog / boost / pure renote of a given target note.
*/
public async hasReblog(noteId: string, me: MiLocalUser | null | undefined): Promise<boolean> {
if (!me) return false;
return await this.notesRepository.existsBy({
// Reblog of the target note by me
userId: me.id,
renoteId: noteId,
// That is pure (not a quote)
text: IsNull(),
cw: IsNull(),
replyId: IsNull(),
hasPoll: false,
fileIds: '{}',
});
}
}
interface NoteRelations {
reply?: boolean | {
reply?: boolean;
renote?: boolean;
user?: boolean;
channel?: boolean;
};
renote?: boolean | {
reply?: boolean;
renote?: boolean;
user?: boolean;
channel?: boolean;
};
user?: boolean;
channel?: boolean;
}
type NoteWithRelations<Rel extends NoteRelations> = MiNote & {
reply: Rel extends { reply: false }
? null
: null | (MiNote & {
reply: Rel['reply'] extends { reply: true } ? MiNote | null : null;
renote: Rel['reply'] extends { renote: true } ? MiNote | null : null;
user: Rel['reply'] extends { user: true } ? MiUser : null;
channel: Rel['reply'] extends { channel: true } ? MiChannel | null : null;
});
renote: Rel extends { renote: false }
? null
: null | (MiNote & {
reply: Rel['renote'] extends { reply: true } ? MiNote | null : null;
renote: Rel['renote'] extends { renote: true } ? MiNote | null : null;
user: Rel['renote'] extends { user: true } ? MiUser : null;
channel: Rel['renote'] extends { channel: true } ? MiChannel | null : null;
});
user: Rel extends { user: true } ? MiUser : null;
channel: Rel extends { channel: true } ? MiChannel | null : null;
};
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