using HospitalBusinessLogics.MailWorker;
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>
        /// Бизнес-логика для сущности "Рецепт"
        /// </summary>
        private readonly IRecipeLogic _recipeLogic;

        /// <summary>
        /// Бизнес-логика для отчетов
        /// </summary>
        private readonly IReportLogic _reportLogic;

        /// <summary>
        /// Бизнес-логика для отправки писем
        /// </summary>
        private readonly AbstractMailWorker _mailLogic;

        /// <summary>
		/// Конструктор
		/// </summary>
		/// <param name="logger"></param>
		/// <param name="doctorLogic"></param>
		/// <param name="recipeLogic"></param>
		/// <param name="reportLogic"></param>
		/// <param name="mailLogic"></param>
        public HomeController(ILogger<HomeController> logger, IDoctorLogic doctorLogic, IRecipeLogic recipeLogic, IReportLogic reportLogic, AbstractMailWorker mailLogic)
		{
			_logger = logger;
			_doctorLogic = doctorLogic;
			_recipeLogic = recipeLogic;
			_reportLogic = reportLogic;
			_mailLogic = mailLogic;
		}

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

            ViewBag.Recipes = _recipeLogic.ReadList(new RecipeSearchModel
            {
                DoctorId = APIClient.Doctor.Id
            });

            return View();
        }

        /// <summary>
        /// Вывести на форму отчёт
        /// </summary>
        /// <exception cref="Exception"></exception>
        [HttpPost]
        public IActionResult Reports(DateTime dateFrom, DateTime dateTo)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (dateFrom == DateTime.MinValue || dateTo == DateTime.MinValue)
            {
                throw new Exception("Введены не все данные!");
            }

            var data = _reportLogic.GetPatientsInfo(new ReportBindingModel
            {
                DateFrom = dateFrom,
                DateTo = dateTo,
                DoctorId = APIClient.Doctor.Id
            });

            ViewBag.Recipes = _recipeLogic.ReadList(new RecipeSearchModel
            {
                DoctorId = APIClient.Doctor.Id
            });

            return View(data);
        }

        /// <summary>
        /// Создать отчёт в формате Word
        /// </summary>
        /// <exception cref="Exception"></exception>
        [HttpPost]
		public void CreateReportWord(List<int> recipes)
		{
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (recipes == null || recipes.Count <= 0)
            {
                throw new Exception("Не выбраны рецепты!");
            }

            _reportLogic.SaveRecipeProceduresToWordFile(new ReportBindingModel
			{
				FileName = $@"{Environment.GetFolderPath(Environment.SpecialFolder.UserProfile)}\Downloads\Список процедур {DateTime.Now.ToString("dd-MM-yyyy HH-mm-ss")}.docx",
				DoctorId = APIClient.Doctor.Id,
				Recipes = recipes
			});

			Response.Redirect("/Home/Reports");
        }

        /// <summary>
        /// Создать отчёт в формате Excel
        /// </summary>
        /// <exception cref="Exception"></exception>
        [HttpPost]
        public void CreateReportExcel(List<int> recipes)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (recipes == null || recipes.Count <= 0)
            {
                throw new Exception("Не выбраны рецепты!");
            }

            _reportLogic.SaveRecipeProceduresToExcelFile(new ReportBindingModel
            {
                FileName = $@"{Environment.GetFolderPath(Environment.SpecialFolder.UserProfile)}\Downloads\Список процедур {DateTime.Now.ToString("dd-MM-yyyy HH-mm-ss")}.xlsx",
				DoctorId = APIClient.Doctor.Id,
				Recipes = recipes
            });

			Response.Redirect("/Home/Reports");
        }

        /// <summary>
        /// Создать отчёт в формате Pdf
        /// </summary>
        /// <exception cref="Exception"></exception>
        [HttpPost]
        public void CreateReportPdf(DateTime dateFrom, DateTime dateTo)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

			if (dateFrom == DateTime.MinValue || dateTo == DateTime.MinValue)
			{
                throw new Exception("Введены не все данные!");
            }

            _reportLogic.SavePatientsInfoToPdfFile(new ReportBindingModel
            {
                FileName = $@"{Environment.GetFolderPath(Environment.SpecialFolder.UserProfile)}\Downloads\Сведения о пациентах {DateTime.Now.ToString("dd-MM-yyyy HH-mm-ss")}.pdf",
				DoctorId = APIClient.Doctor.Id,
				DateFrom = dateFrom,
				DateTo = dateTo
            });

            Response.Redirect("/Home/Reports");
        }

        /// <summary>
        /// Отправить по почте отчёт
        /// </summary>
        /// <param name="fileUpload"></param>
        /// <exception cref="Exception"></exception>
        [HttpPost]
		public void SendReport(IFormFile fileUpload)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (fileUpload == null || fileUpload.Length <= 0)
			{
                throw new Exception("Файл не выбран или пуст!");
            }

            // Путь до файла
            var uploadPath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) + @"\Downloads\";
            var fileName = Path.GetFileName(fileUpload.FileName);
			var fullPath = Path.Combine(uploadPath, fileName);

			_mailLogic.MailSendAsync(new MailSendInfoBindingModel
			{
				MailAddress = APIClient.Doctor.Email,
				Subject = $"{fileName.Split('.')[0]}",
				Text = $"Отчёт отправлен {DateTime.Now}",
				Path = fullPath
			});

            Response.Redirect("/Home/Reports");
        }

        /// <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 });
		}
	}
}