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

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

        /// <summary>
        /// Бизнес-логика для сущности "Лекарство"
        /// </summary>
        private readonly IMedicineLogic _medicineLogic;

		/// <summary>
		/// Конструктор
		/// </summary>
		/// <param name="logger"></param>
		/// <param name="medicineLogic"></param>
		public MedicineController(ILogger<MedicineController> logger, IMedicineLogic medicineLogic)
        {
            _logger = logger;
            _medicineLogic = medicineLogic;
        }

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

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

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

            return View();
        }

        /// <summary>
        /// Создать лекарство
        /// </summary>
        /// <param name="name"></param>
        /// <param name="description"></param>
        /// <exception cref="Exception"></exception>
        [HttpPost]
        public void CreateMedicine(string name, string? description)
        {
            if (APIClient.Doctor == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (string.IsNullOrEmpty(name))
            {
                throw new Exception("Введены не все данные!");
            }

            _medicineLogic.Create(new MedicineBindingModel
            {
                Name = name,
                Description = description
            });

			Response.Redirect("/Medicine/Medicines");
		}

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

            return View(_medicineLogic.ReadElement(new MedicineSearchModel
            {
                Id = id
            }));
        }

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

            if (string.IsNullOrEmpty(name))
            {
                throw new Exception("Введены не все данные!");
            }

            _medicineLogic.Update(new MedicineBindingModel
            {
                Id = id,
                Name = name,
                Description = description
            });

            Response.Redirect("/Medicine/Medicines");
        }

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

            _medicineLogic.Delete(new MedicineBindingModel
            {
                Id = id
            });

			Response.Redirect("/Medicine/Medicines");
		}
    }
}