using Microsoft.AspNetCore.Mvc;
using VeterinaryClinicContracts.BindingModels;
using VeterinaryClinicContracts.BusinessLogicsContracts;
using VeterinaryClinicContracts.SearchModels;
using VeterinaryClinicDataModels.Models;

namespace VeterinaryClinicWebApp.Controllers
{
	public class AnimalController : Controller
	{
		private readonly ILogger<AnimalController> _logger;

		private readonly IAnimalLogic _animalLogic;

		private readonly IMedicationLogic _medicationLogic;
		public AnimalController(ILogger<AnimalController> logger, IAnimalLogic animalLogic, IMedicationLogic medicationLogic)
		{
			_logger = logger;
			_animalLogic = animalLogic;
			_medicationLogic = medicationLogic;
		}

		/// <summary>
		/// Вывести список животных
		/// </summary>
		[HttpGet]
		public IActionResult Animals()
		{
			if (APIClient.User == null)
			{
				return Redirect("~/Home/Enter");
			}

			return View(_animalLogic.ReadList(new AnimalSearchModel
			{
				UserId = APIClient.User.Id,
			}));
		}

		/// <summary>
		/// Создать животного
		/// </summary>
		[HttpGet]
		public IActionResult CreateAnimal()
		{
			if (APIClient.User == null)
			{
				return Redirect("~/Home/Enter");
			}

			ViewBag.Medications = _medicationLogic.ReadList(null);

			return View();
		}

		[HttpPost]
		public void CreateAnimal(string type, string breed, int age, List<int> medication)
		{
			if (APIClient.User == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (string.IsNullOrEmpty(type) || string.IsNullOrEmpty(breed) || age < 0)
			{
				throw new Exception("Введены не все данные!");
			}

			Dictionary<int, IMedicationModel> animalMedication = new Dictionary<int, IMedicationModel>();
			foreach (var medicationId in medication)
			{
				animalMedication.Add(medicationId, _medicationLogic.ReadElement(new MedicationSearchModel { Id = medicationId })!);
			}

			_animalLogic.Create(new AnimalBindingModel
			{
				Type = type,
				Breed = breed,
				Age = age,
				AnimalMedications = animalMedication,
				UserId = APIClient.User.Id
			});

			Response.Redirect("/Animal/Animals");
		}

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

			ViewBag.Medications = _medicationLogic.ReadList(null);

			return View(_animalLogic.ReadElement(new AnimalSearchModel
			{
				Id = id
			}));
		}

		[HttpPost]
		public void UpdateAnimal(int id, string type, string breed, int age, List<int> medication)
		{
			if (APIClient.User == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (string.IsNullOrEmpty(type) || string.IsNullOrEmpty(breed) || age < 0)
			{
				throw new Exception("Введены не все данные!");
			}

			Dictionary<int, IMedicationModel> animalMedication = new Dictionary<int, IMedicationModel>();
			foreach (var medicationId in medication)
			{
				animalMedication.Add(medicationId, _medicationLogic.ReadElement(new MedicationSearchModel { Id = medicationId })!);
			}

			_animalLogic.Update(new AnimalBindingModel
			{
				Id = id,
				Type = type,
				Breed = breed,
				Age = age,
				AnimalMedications = animalMedication,
				UserId = APIClient.User.Id
			});

			Response.Redirect("/Animal/Animals");
		}

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

            _animalLogic.Delete(new AnimalBindingModel
            {
                Id = id
            });

            Response.Redirect("/Animal/Animals");
        }
    }
}