import $ from 'cafy';
import ID, { transform } from '../../../../misc/cafy-id';
import User from '../../../../models/user';
import Mute from '../../../../models/mute';
import define from '../../define';
import { ApiError } from '../../error';

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

	requireCredential: true,

	kind: 'account/write',

	params: {
		userId: {
			validator: $.type(ID),
			transform: transform,
			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.equals(ps.userId)) {
		throw new ApiError(meta.errors.muteeIsYourself);
	}

	// Get mutee
	const mutee = await User.findOne({
		_id: ps.userId
	}, {
		fields: {
			data: false,
			profile: false
		}
	});

	if (mutee === null) {
		throw new ApiError(meta.errors.noSuchUser);
	}

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

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

	// Create mute
	await Mute.insert({
		createdAt: new Date(),
		muterId: muter._id,
		muteeId: mutee._id,
	});

	return;
});