using DocumentFormat.OpenXml.Office2010.Excel;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
using VeterinaryClinicBusinessLogics.BusinessLogics;
using VeterinaryClinicContracts.BindingModels;
using VeterinaryClinicContracts.BusinessLogicsContracts;
using VeterinaryClinicContracts.SearchModels;
using VeterinaryClinicDatabaseImplement.Models;
using VeterinaryClinicDataModels.Models;
using VeterinaryClinicWebApp.Models;

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

        private readonly IVisitLogic _visitLogic;

        private readonly IAnimalLogic _animalLogic;

        private readonly IServiceLogic _serviceLogic;
        public VisitController(ILogger<VisitController> logger, IVisitLogic visitLogic, IAnimalLogic animalLogic, IServiceLogic serviceLogic)
		{
			_logger = logger;
			_visitLogic = visitLogic;
			_animalLogic = animalLogic;
			_serviceLogic = serviceLogic;
		}

        /// <summary>
        /// Вывести список визитов
        /// </summary>
        public IActionResult Visits()
		{
            if (APIClient.User == null)
            {
                return Redirect("~/Home/Enter");
            }

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

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

            ViewBag.Services = _serviceLogic.ReadList(null);

            return View();
        }

        [HttpPost]
        public void CreateVisit(DateTime dateVisit, List<int> service)
        {
            if (APIClient.User == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

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

            Dictionary<int, IServiceModel> visitServices = new Dictionary<int, IServiceModel>();
            foreach (var serviceId in service)
            {
                visitServices.Add(serviceId, _serviceLogic.ReadElement(new ServiceSearchModel { Id = serviceId })!);
            }

            _visitLogic.Create(new VisitBindingModel
            {
                Date = dateVisit,
                VisitServices = visitServices,
                UserId = APIClient.User.Id
            });

            Response.Redirect("/Visit/Visits");
        }

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

            ViewBag.Services = _serviceLogic.ReadList(null);

            return View(_visitLogic.ReadElement(new VisitSearchModel
            {
                Id = id
            }));
        }

        [HttpPost]
        public void UpdateVisit(int id, DateTime dateVisit, List<int> service)
        {
            if (APIClient.User == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

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

            Dictionary<int, IServiceModel> visitServices = new Dictionary<int, IServiceModel>();
            foreach (var serviceId in service)
            {
                visitServices.Add(serviceId, _serviceLogic.ReadElement(new ServiceSearchModel { Id = serviceId })!);
            }

			var visit = _visitLogic.ReadElement(new VisitSearchModel { Id = id });
			_visitLogic.Update(new VisitBindingModel
            {
                Id = id,
                Date = dateVisit,
                VisitServices = visitServices,
				VisitAnimals = visit!.VisitAnimals,
				UserId = APIClient.User.Id
            });

            Response.Redirect("/Visit/Visits");
        }

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

            _visitLogic.Delete(new VisitBindingModel
            {
                Id = id
            });

            Response.Redirect("/Visit/Visits");
        }

		/// <summary>
		/// Выписать рецепт пациенту
		/// </summary>
		/// <returns></returns>
		/// <exception cref="Exception"></exception>
		[HttpGet]
		public IActionResult CreateVisitAnimal()
		{
			if (APIClient.User == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			ViewBag.Visits = _visitLogic.ReadList(new VisitSearchModel
			{
				UserId = APIClient.User.Id
			});
			ViewBag.Animals = _animalLogic.ReadList(new AnimalSearchModel
			{
				UserId = APIClient.User.Id
			});

			return View();
		}

		/// <summary>
		/// Выписать рецепт пациенту
		/// </summary>
		/// <exception cref="Exception"></exception>
		[HttpPost]
		public void CreateVisitAnimal(int visitId, List<int> animals)
		{
			if (APIClient.User == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (visitId <= 0 || animals == null)
			{
				throw new Exception("Введены не все данные!");
			}

			Dictionary<int, IAnimalModel> visitAnimals = new Dictionary<int, IAnimalModel>();
			foreach (var animalId in animals)
			{
				visitAnimals.Add(animalId, _animalLogic.ReadElement(new AnimalSearchModel { Id = animalId })!);
			}

			var visit = _visitLogic.ReadElement(new VisitSearchModel { Id = visitId });

			_visitLogic.Update(new VisitBindingModel
			{
				Id = visit!.Id,
				Date = visit!.Date,
				VisitServices = visit!.VisitServices,
				VisitAnimals = visitAnimals,
				UserId = APIClient.User.Id
			});

			Response.Redirect("/Visit/Visits");
		}
	}
}