import User from '../models/User.js';
import ApiError from '../controllers/ErrorController.js';
import bcrypt from 'bcrypt';

class UserService {
    async getAll({page, search}) {
        const limit = page ? 10 : 0 

        const users = await User.find({login: {$regex: search || '', $options: 'i'}}).select(['login']).skip(page * limit).limit(limit).sort({_id: -1});
        const count = await User.countDocuments({login: {$regex: search || '', $options: 'i'}});
        
        return {users, count: Math.ceil(count/limit)};
    }

    async getOne({id}) {
        const user = await User.findById(id).select(['login']);
        if(!user) {
            throw ApiError.BadRequest('Пользователя не существует'); 
        }

        return {user};
    }

    async edit({id, login, password}) {
        if(password) {
            password = await bcrypt.hash(password, 5);
        }
        const user = await User.findByIdAndUpdate(id, {login, password}, {returnOriginal: false}).select(['login']);
        if(!user) {
            throw ApiError.BadRequest('Пользователя не существует'); 
        }
        
        return {user};
    }

    async delete({id}) {
        const user = await User.findByIdAndDelete(id).select(['login']);
        if(!user) {
            throw ApiError.BadRequest('Пользователя не существует'); 
        }

        return {user};
    }
}

export default new UserService();