using ComputerStoreDataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ComputerStoreContracts.BindingModels;
using ComputerStoreContracts.ViewModels;

namespace ComputerStoreDatabaseImplement.Models
{
    public class Employee : IEmployeeModel
    {
        public int ID { get; private set; }
        [Required]
        public string Username { get; private set; } = string.Empty; 
        [Required]
        public string Password { get; private set; } = string.Empty;

        public string? FirstName { get; private set; } = string.Empty;
        public string? LastName { get; private set; } = string.Empty;
        public string? MiddleName { get; private set; } = string.Empty;

        [ForeignKey("EmployeeID")]
        public virtual List<PC> PCs { get; set; } = new();

        [ForeignKey("EmployeeID")]
        public virtual List<Product> Products { get; set; } = new();

        public static Employee? Create(EmployeeBindingModel? model)
        {
            if (model == null)
            {
                return null;
            }
            return new Employee()
            {
                ID = model.ID,
                Username = model.Username,
                Password = model.Password,
                FirstName = model.FirstName,
                LastName = model.LastName,
                MiddleName = model.MiddleName
            };
        }

        public void Update(EmployeeBindingModel? model)
        {
            if (model == null) { return; }
            Username = model.Username;
            Password = model.Password;
            FirstName = model.FirstName;
            LastName = model.LastName;
            MiddleName = model.MiddleName;
        }

        public EmployeeViewModel GetViewModel => new()
        {
            ID = ID,
            Username = Username,
            Password = Password,
            FirstName = FirstName,
            LastName = LastName,
            MiddleName = MiddleName
        };
    }
}