import $ from 'cafy';
import { ID } from '@/misc/cafy-id';
import define from '../../define';
import { ApiError } from '../../error';
import { Channels } from '@/models/index';

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

	requireCredential: false,

	params: {
		channelId: {
			validator: $.type(ID),
		},
	},

	res: {
		type: 'object',
		optional: false, nullable: false,
		ref: 'Channel',
	},

	errors: {
		noSuchChannel: {
			message: 'No such channel.',
			code: 'NO_SUCH_CHANNEL',
			id: '6f6c314b-7486-4897-8966-c04a66a02923',
		},
	},
} as const;

// eslint-disable-next-line import/no-default-export
export default define(meta, async (ps, me) => {
	const channel = await Channels.findOne({
		id: ps.channelId,
	});

	if (channel == null) {
		throw new ApiError(meta.errors.noSuchChannel);
	}

	return await Channels.pack(channel, me);
});