using DocumentFormat.OpenXml.Presentation;
using Microsoft.AspNetCore.Mvc;
using TravelAgencyContracts.BindingModels;
using TravelAgencyContracts.BusinessLogicsContracts;
using TravelAgencyContracts.SearchModels;
using TravelAgencyDatabaseImplement.Models;
using TravelAgencyDataModels.Models;

namespace TravelAgencyWebApp.Controllers
{
	public class ExcursionController : Controller
	{
        private readonly ILogger<ExcursionController> _logger;

        private readonly IExcursionLogic _excursionLogic;

        private readonly ITourLogic _tourLogic;

        private readonly IPlaceLogic _placeLogic;

        public ExcursionController(ILogger<ExcursionController> logger, IExcursionLogic excursionLogic, ITourLogic tourLogic, IPlaceLogic placeLogic)
        {
            _logger = logger;
            _excursionLogic = excursionLogic;
            _tourLogic = tourLogic;
            _placeLogic = placeLogic;
        }

        [HttpGet]
        public IActionResult Excursions()
        {
            if (LoggedinUser.User == null)
            {
                return Redirect("~/Home/Enter");
            }

            return View(_excursionLogic.ReadList(new ExcursionSearchModel
            {
                UserId = LoggedinUser.User.Id,
            }));
        }

        [HttpGet]
        public IActionResult CreateExcursion()
        {
            if (LoggedinUser.User == null)
            {
                return Redirect("~/Home/Enter");
            }

            ViewBag.Tours = _tourLogic.ReadList(new TourSearchModel
            {
                UserId = LoggedinUser.User.Id,
            });

            ViewBag.Places = _placeLogic.ReadList(null);

            return View();
        }

        [HttpPost]
        public void CreateExcursion(string excursionName, string excursionDescription, int place, double price, List<int> tours)
        {
            if (LoggedinUser.User == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (string.IsNullOrEmpty(excursionName) || string.IsNullOrEmpty(excursionDescription) || price <= 0 || place <= 0 || tours == null)
            {
                throw new Exception("Введены не все данные!");
            }

            Dictionary<int, ITourModel> excursionTours = new Dictionary<int, ITourModel>();
            foreach (var tourId in tours)
            {
                excursionTours.Add(tourId, _tourLogic.ReadElement(new TourSearchModel { Id = tourId })!);
            }

            _excursionLogic.Create(new ExcursionBindingModel
            {
                ExcursionName = excursionName,
                ExcursionDescription = excursionDescription,
                Price = price,
                UserId = LoggedinUser.User.Id,
                PlaceId = place,
                ExcursionTours = excursionTours
            });

            Response.Redirect("/Excursion/Excursions");
        }

        [HttpGet]
        public IActionResult UpdateExcursion(int id)
        {
            if (LoggedinUser.User == null)
            {
                return Redirect("~/Home/Enter");
            }

            ViewBag.Tours = _tourLogic.ReadList(new TourSearchModel
            {
                UserId = LoggedinUser.User.Id,
            });

            ViewBag.Places = _placeLogic.ReadList(null);

            return View(_excursionLogic.ReadElement(new ExcursionSearchModel
            {
                Id = id
            }));
        }

        [HttpPost]
        public void UpdateExcursion(int id, string excursionName, string excursionDescription, int place, double price, List<int> tours)
        {
            if (LoggedinUser.User == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            if (string.IsNullOrEmpty(excursionName) || string.IsNullOrEmpty(excursionDescription) || price <= 0 || place <= 0 || tours == null)
            {
                throw new Exception("Введены не все данные!");
            }

            Dictionary<int, ITourModel> excursionTours = new Dictionary<int, ITourModel>();
            foreach (var tourId in tours)
            {
                excursionTours.Add(tourId, _tourLogic.ReadElement(new TourSearchModel { Id = tourId })!);
            }

            _excursionLogic.Update(new ExcursionBindingModel
            {
                Id = id,
                ExcursionName = excursionName,
                ExcursionDescription = excursionDescription,
                Price = price,
                UserId = LoggedinUser.User.Id,
                PlaceId = place,
                ExcursionTours = excursionTours
            });

            Response.Redirect("/Excursion/Excursions");
        }

        [HttpPost]
        public void DeleteExcursion(int id)
        {
            if (LoggedinUser.User == null)
            {
                throw new Exception("Необходимо авторизоваться!");
            }

            _excursionLogic.Delete(new ExcursionBindingModel
            {
                Id = id
            });

            Response.Redirect("/Excursion/Excursions");
        }
    }
}