using Contracts.BindingModels;
using Contracts.SearchModels;
using Contracts.ViewModels;
using DataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DatabaseImplement.Models
{
	public class User : IUser
	{
		public Guid Id { get; set; }

		[Required]
		public string FirstName { get; set; } = string.Empty;

		[Required]
		public string SecondName { get; set; } = string.Empty;

		[Required]
		public string PasswordHash { get; set; } = string.Empty;

		[Required]
		public string Email { get; set; } = string.Empty;

		[Required]
		public DateTime Birthday { get; set; }

		public Role? Role { get; set; }

		public UserBindingModel GetBindingModel() => new()
		{
			Id = Id,
			FirstName = FirstName,
			SecondName = SecondName,
			Email = Email,
			PasswordHash = PasswordHash,
			Birthday = Birthday,
			Role = Role?.GetBindingModel() ?? new()
		};

		public static User ToUserFromView(UserViewModel model) => new()
		{
			Id = model.Id,
			FirstName = model.FirstName,
			SecondName = model.SecondName,
			Email = model.Email,
			Birthday = model.Birthday,
			Role = Models.Role.ToRoleFromView(model.Role)
		};

		public static User ToUserFromBinding(UserBindingModel model) => new()
		{
			Id = model.Id,
			FirstName = model.FirstName,
			SecondName = model.SecondName,
			Email = model.Email,
			PasswordHash = model.PasswordHash,
			Birthday = model.Birthday,
			Role = Models.Role.ToRoleFromBinding(model.Role)
		};

		public void Update(UserBindingModel model)
		{
			if (model is null)
			{
				throw new ArgumentNullException("Update user: binding model is null");
			}

			Email = model.Email;
			FirstName = model.FirstName;
			SecondName = model.SecondName;
			PasswordHash = model.PasswordHash;
			Birthday = model.Birthday;
			Role = Models.Role.ToRoleFromBinding(model.Role);
		}

		public bool Equals(UserSearchModel model)
		{
			if (model.Id is null)
			{
				return Email.Contains(model.Email!);
			}
			if (string.IsNullOrWhiteSpace(model.Email))
			{
				return Id == model.Id;
			}
			return false;
		}
	}
}