using HospitalContracts.BindingModels;
using HospitalContracts.BusinessLogicsContracts;
using HospitalContracts.SearchModels;
using HospitalContracts.ViewModels;
using HospitalDataModels.Models;
using Microsoft.AspNetCore.Mvc;

namespace HospitalWebApp.Controllers
{
    /// <summary>
	/// Контроллер для сущности "Болезнь"
	/// </summary>
    public class DiseaseController : Controller
    {
        /// <summary>
		/// Логгер
		/// </summary>
		private readonly ILogger<DiseaseController> _logger;

		/// <summary>
		/// Бизнес-логика для сущности "Болезнь"
		/// </summary>
		private readonly IDiseaseLogic _diseaseLogic;

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

		/// <summary>
		/// Конструктор
		/// </summary>
		/// <param name="logger"></param>
		/// <param name="diseaseLogic"></param>
		/// <param name="recipeLogic"></param>
		public DiseaseController(ILogger<DiseaseController> logger, IDiseaseLogic diseaseLogic, IRecipeLogic recipeLogic)
        {
            _logger = logger;
            _diseaseLogic = diseaseLogic;
            _recipeLogic = recipeLogic;
        }

        /// <summary>
		/// Вывести список болезней
		/// </summary>
		/// <returns></returns>
		[HttpGet]
        public IActionResult Diseases()
        {
            if (APIClient.Doctor == null)
            {
                return Redirect("~/Home/Enter");
            }

            return View(_diseaseLogic.ReadList(null));
        }

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

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

            return View();
        }

        /// <summary>
        /// Создать болезнь
        /// </summary>
        /// <param name="name"></param>
        /// <param name="symptoms"></param>
        /// <param name="recipeId"></param>
        /// <exception cref="Exception"></exception>
        [HttpPost]
        public void CreateDisease(string name, string? symptoms, int recipe)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (string.IsNullOrEmpty(name) || recipe <= 0)
            {
                throw new Exception("Введены не все данные!");
            }

            _diseaseLogic.Create(new DiseaseBindingModel
            {
                Name = name,
                Symptoms = symptoms,
                RecipeId = recipe
            });

			Response.Redirect("/Disease/Diseases");
		}

        /// <summary>
		/// Редактировать болезнь
		/// </summary>
		/// <returns></returns>
		[HttpGet]
        public IActionResult UpdateDisease(int id)
        {
            if (APIClient.Doctor == null)
            {
                return Redirect("~/Home/Enter");
            }

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

			return View(_diseaseLogic.ReadElement(new DiseaseSearchModel
            {
                Id = id
            }));
        }

        /// <summary>
        /// Редактировать болезнь
        /// </summary>
        /// /// <param name="id"></param>
        /// <param name="name"></param>
        /// <param name="symptoms"></param>
        /// <param name="recipeId"></param>
        /// <exception cref="Exception"></exception>
        [HttpPost]
        public void UpdateDisease(int id, string name, string? symptoms, int recipe)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (string.IsNullOrEmpty(name) || recipe <= 0)
            {
                throw new Exception("Введены не все данные!");
            }

            _diseaseLogic.Update(new DiseaseBindingModel
            {
                Id = id,
                Name = name,
                Symptoms = symptoms,
                RecipeId = recipe
            });

			Response.Redirect("/Disease/Diseases");
		}

        /// <summary>
		/// Удалить болезнь
		/// </summary>
		/// <returns></returns>
		[HttpPost]
        public void DeleteDisease(int id)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            _diseaseLogic.Delete(new DiseaseBindingModel
            {
                Id = id
            });

			Response.Redirect("/Disease/Diseases");
		}
    }
}