import $ from 'cafy';
import { ID } from '../../../../misc/cafy-id';
import define from '../../define';
import { ApiError } from '../../error';
import { getUser } from '../../common/getters';
import { genId } from '../../../../misc/gen-id';
import { Mutings, NoteWatchings } from '../../../../models';
import { Muting } from '../../../../models/entities/muting';
import { publishUserEvent } from '../../../../services/stream';

export const meta = {
	desc: {
		'ja-JP': 'ユーザーをミュートします。',
		'en-US': 'Mute a user'
	},

	tags: ['account'],

	requireCredential: true as const,

	kind: 'write:mutes',

	params: {
		userId: {
			validator: $.type(ID),
			desc: {
				'ja-JP': '対象のユーザーのID',
				'en-US': 'Target user ID'
			}
		},
	},

	errors: {
		noSuchUser: {
			message: 'No such user.',
			code: 'NO_SUCH_USER',
			id: '6fef56f3-e765-4957-88e5-c6f65329b8a5'
		},

		muteeIsYourself: {
			message: 'Mutee is yourself.',
			code: 'MUTEE_IS_YOURSELF',
			id: 'a4619cb2-5f23-484b-9301-94c903074e10'
		},

		alreadyMuting: {
			message: 'You are already muting that user.',
			code: 'ALREADY_MUTING',
			id: '7e7359cb-160c-4956-b08f-4d1c653cd007'
		},
	}
};

export default define(meta, async (ps, user) => {
	const muter = user;

	// 自分自身
	if (user.id === ps.userId) {
		throw new ApiError(meta.errors.muteeIsYourself);
	}

	// Get mutee
	const mutee = await getUser(ps.userId).catch(e => {
		if (e.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
		throw e;
	});

	// Check if already muting
	const exist = await Mutings.findOne({
		muterId: muter.id,
		muteeId: mutee.id
	});

	if (exist != null) {
		throw new ApiError(meta.errors.alreadyMuting);
	}

	// Create mute
	await Mutings.save({
		id: genId(),
		createdAt: new Date(),
		muterId: muter.id,
		muteeId: mutee.id,
	} as Muting);

	publishUserEvent(user.id, 'mute', mutee);

	NoteWatchings.delete({
		userId: muter.id,
		noteUserId: mutee.id
	});
});