import { api } from '@rocket.chat/core-services';
import type { IUser } from '@rocket.chat/core-typings';
import type { ServerMethods } from '@rocket.chat/ddp-client';
import { Users } from '@rocket.chat/models';
import { DDPRateLimiter } from 'meteor/ddp-rate-limiter';
import { Meteor } from 'meteor/meteor';

import { hasPermissionAsync } from '../../app/authorization/server/functions/hasPermission';
import { FileUpload } from '../../app/file-upload/server';
import { settings } from '../../app/settings/server';

declare module '@rocket.chat/ddp-client' {
	// eslint-disable-next-line @typescript-eslint/naming-convention
	interface ServerMethods {
		resetAvatar(userId: IUser['_id']): void;
	}
}

export const resetAvatar = async (fromUserId: IUser['_id'], userId: IUser['_id']): Promise<void> => {
	const canEditOtherUserAvatar = await hasPermissionAsync(fromUserId, 'edit-other-user-avatar');

	if (!settings.get('Accounts_AllowUserAvatarChange') && !canEditOtherUserAvatar) {
		throw new Meteor.Error('error-not-allowed', 'Not allowed', {
			method: 'resetAvatar',
		});
	}

	let user;

	if (userId !== fromUserId) {
		if (!canEditOtherUserAvatar) {
			throw new Meteor.Error('error-unauthorized', 'Unauthorized', {
				method: 'resetAvatar',
			});
		}

		user = await Users.findOneById(userId, { projection: { _id: 1, username: 1 } });
	} else {
		user = await Users.findOneById(fromUserId, { projection: { _id: 1, username: 1 } });
	}

	if (!user?.username) {
		throw new Meteor.Error('error-invalid-desired-user', 'Invalid desired user', {
			method: 'resetAvatar',
		});
	}

	await FileUpload.getStore('Avatars').deleteByName(user.username);
	await Users.unsetAvatarData(user._id);
	void api.broadcast('user.avatarUpdate', { username: user.username, avatarETag: undefined });
};

Meteor.methods<ServerMethods>({
	async resetAvatar(userId) {
		const uid = Meteor.userId();
		if (!uid) {
			throw new Meteor.Error('error-invalid-user', 'Invalid user', {
				method: 'resetAvatar',
			});
		}

		return resetAvatar(uid, userId);
	},
});

DDPRateLimiter.addRule(
	{
		type: 'method',
		name: 'resetAvatar',
		userId() {
			return true;
		},
	},
	1,
	60000,
);