using HospitalContracts.BindingModels;
using HospitalContracts.BusinessLogicsContracts;
using HospitalContracts.SearchModels;
using HospitalContracts.ViewModels;
using HospitalDataModels.Enums;
using HospitalWebApp.Models;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;

namespace HospitalWebApp.Controllers
{
	/// <summary>
	/// Главный контроллер
	/// </summary>
	public class HomeController : Controller
	{
		/// <summary>
		/// Логгер
		/// </summary>
		private readonly ILogger<HomeController> _logger;

		/// <summary>
		/// Бизнес-логика для сущности "Доктор"
		/// </summary>
		private readonly IDoctorLogic _doctorLogic;

		/// <summary>
		/// Конструктор
		/// </summary>
		/// <param name="logger"></param>
		/// <param name="doctorLogic"></param>
		public HomeController(ILogger<HomeController> logger, IDoctorLogic doctorLogic)
		{
			_logger = logger;
			_doctorLogic = doctorLogic;
		}

		/// <summary>
		/// Домашняя страница
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Index()
		{
			if (APIClient.Doctor == null)
			{
				return Redirect("~/Home/Enter");
			}

			return View(APIClient.Doctor);
		}

		/// <summary>
		/// Личные данные доктора
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Privacy()
		{
			if (APIClient.Doctor == null)
			{
				return Redirect("~/Home/Enter");
			}

			return View(APIClient.Doctor);
		}

		/// <summary>
		/// Личные данные доктора
		/// </summary>
		/// <param name="fullname"></param>
		/// <param name="post"></param>
		/// <param name="email"></param>
		/// <param name="password"></param>
		/// <exception cref="Exception"></exception>
		[HttpPost]
		public void Privacy(string fullname, DoctorPost post, string email, string password)
		{
			if (APIClient.Doctor == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (string.IsNullOrEmpty(fullname) || string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
			{
				throw new Exception("Введены не все данные!");
			}

			_doctorLogic.Update(new DoctorBindingModel
			{
				Id = APIClient.Doctor.Id,
				FullName = fullname,
				Post = post,
				Email = email,
				Password = password
			});

			APIClient.Doctor.FullName = fullname;
			APIClient.Doctor.Post = post;
			APIClient.Doctor.Email = email;
			APIClient.Doctor.Password = password;

			Response.Redirect("Privacy");
		}

		/// <summary>
		/// Аутентификация
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Enter()
		{
			if (APIClient.Doctor != null)
			{
                throw new Exception("Вы уже авторизовались!");
            }

			return View();
		}

		/// <summary>
		/// Аутентификация
		/// </summary>
		/// <param name="email"></param>
		/// <param name="password"></param>
		/// <exception cref="Exception"></exception>
		[HttpPost]
		public void Enter(string email, string password)
		{
			if (string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
			{
				throw new Exception("Введены не все данные!");
			}

			APIClient.Doctor = _doctorLogic.ReadElement(new DoctorSearchModel
			{
				Email = email,
				Password = password
			});
			if (APIClient.Doctor == null)
			{
				throw new Exception("Неверный логин/пароль");
			}

			Response.Redirect("Index");
		}

		/// <summary>
		/// Регистрация
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Register()
		{
			if (APIClient.Doctor != null)
			{
				throw new Exception("Вы уже зарегистрировались!");
			}

			return View();
		}

		/// <summary>
		/// Регистрация
		/// </summary>
		/// <param name="fullname"></param>
		/// <param name="post"></param>
		/// <param name="email"></param>
		/// <param name="password"></param>
		/// <exception cref="Exception"></exception>
		[HttpPost]
		public void Register(string fullname, DoctorPost post, string email, string password)
		{
			if (string.IsNullOrEmpty(fullname) || string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
			{
				throw new Exception("Введены не все данные!");
			}

			_doctorLogic.Create(new DoctorBindingModel
			{
				FullName = fullname,
				Post = post,
				Email = email,
				Password = password
			});

			Response.Redirect("Enter");
		}

		/// <summary>
		/// Выйти из аккаунта
		/// </summary>
		/// <exception cref="Exception"></exception>
		[HttpGet]
		public void Logout()
		{
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

			APIClient.Doctor = null;
            Response.Redirect("Enter");
        }

		/// <summary>
		/// Ошибка
		/// </summary>
		/// <returns></returns>
		[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
		public IActionResult Error()
		{
			return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
		}
	}
}