using System;
using System.Collections.Generic;
using System.Text;

using WebApiStudy.Model;
using WebApiStudy.IDal;
using WebApiStudy.IBll;

namespace WebApiStudy.Bll
{
    public class UserBll : IUserBll
    {
        private IUserDal IDal;
        public UserBll(IUserDal userDal)
        {
            this.IDal = userDal;
        }

        public List<User> GetAllUser()
        {
            return IDal.GetAllUser();
        }

        public User GetUser(int userId)
        {
            return IDal.GetUser(userId);
        }

        public (bool result, User user) InsertUser(User user)
        {
            return IDal.InsertUser(user);
        }

        public (bool result, User user) UpdateUser(User user)
        {
            return IDal.UpdateUser(user);
        }

        public bool DeleteUser(int userId)
        {
            int effectRow=IDal.DeleteUser(userId);

            return effectRow > 0;
        }

        public decimal TotalIncome(int userId)
        {
            var user = IDal.GetUser(userId);
            if (user == null)
            {
                return 0;
            }
            return user.TotalIncome();
        }

        public decimal TotalCost(int userId)
        {
            var user = IDal.GetUser(userId);
            if (user == null)
            {
                return 0;
            }
            return user.TotalCost();
        }
    }
}