egirlskey/packages/backend/src/server/api/endpoints/federation/following.ts

import $ from 'cafy';
import { ID } from '@/misc/cafy-id';
import define from '../../define';
import { Followings } from '@/models/index';
import { makePaginationQuery } from '../../common/make-pagination-query';

export const meta = {
	tags: ['federation'],

	requireCredential: false,

	params: {
		host: {
			validator: $.str,
		},

		sinceId: {
			validator: $.optional.type(ID),
		},

		untilId: {
			validator: $.optional.type(ID),
		},

		limit: {
			validator: $.optional.num.range(1, 100),
			default: 10,
		},
	},

	res: {
		type: 'array',
		optional: false, nullable: false,
		items: {
			type: 'object',
			optional: false, nullable: false,
			ref: 'Following',
		},
	},
} as const;

// eslint-disable-next-line import/no-default-export
export default define(meta, async (ps, me) => {
	const query = makePaginationQuery(Followings.createQueryBuilder('following'), ps.sinceId, ps.untilId)
		.andWhere(`following.followerHost = :host`, { host: ps.host });

	const followings = await query
		.take(ps.limit!)
		.getMany();

	return await Followings.packMany(followings, me, { populateFollowee: true });
});