using ConfectioneryClientApp.Models;
using ConfectioneryClientApp;
using ConfectioneryContracts.BindingModels;
using ConfectioneryContracts.ViewModels;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
using System.Text;
using ConfectioneryContracts.SearchModels;
using Microsoft.AspNetCore.Mvc.Rendering;

namespace ConfectioneryClientApp.Controllers
{
	public class HomeController : Controller
	{
		private readonly ILogger<HomeController> _logger;

		public HomeController(ILogger<HomeController> logger)
		{
			_logger = logger;
		}

		public IActionResult Index()
		{
			if (APIClient.Client == null)
			{
				return Redirect("~/Home/Enter");
			}
			return View(APIClient.GetRequest<List<OrderViewModel>>($"api/main/getorders?clientId={APIClient.Client.Id}"));
		}

		[HttpGet]
		public IActionResult Privacy()
		{
			if (APIClient.Client == null)
			{
				return Redirect("~/Home/Enter");
			}
			return View(APIClient.Client);
		}

		[HttpPost]
		public void Privacy(string login, string password, string fio)
		{
			if (APIClient.Client == null)
			{
				throw new Exception("Вы как суда попали? Суда вход только авторизованным");
			}
			if (string.IsNullOrEmpty(login) || string.IsNullOrEmpty(password) || string.IsNullOrEmpty(fio))
			{
				throw new Exception("Введите логин, пароль и ФИО");
			}
			APIClient.PostRequest("api/client/updatedata", new ClientBindingModel
			{
				Id = APIClient.Client.Id,
				ClientFIO = fio,
				Email = login,
				Password = password
			});

			APIClient.Client.ClientFIO = fio;
			APIClient.Client.Email = login;
			APIClient.Client.Password = password;
			Response.Redirect("Index");
		}

		[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
		public IActionResult Error()
		{
			return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
		}

		[HttpGet]
		public IActionResult Enter()
		{
			return View();
		}

		[HttpPost]
		public void Enter(string login, string password)
		{
			if (string.IsNullOrEmpty(login) || string.IsNullOrEmpty(password))
			{
				throw new Exception("Введите логин и пароль");
			}
			APIClient.Client = APIClient.GetRequest<ClientViewModel>($"api/client/login?login={login}&password={password}");
			if (APIClient.Client == null)
			{
				throw new Exception("Неверный логин/пароль");
			}
			Response.Redirect("Index");
		}

		[HttpGet]
		public IActionResult Register()
		{
			return View();
		}

		[HttpPost]
		public void Register(string login, string password, string fio)
		{
			if (string.IsNullOrEmpty(login) || string.IsNullOrEmpty(password) || string.IsNullOrEmpty(fio))
			{
				throw new Exception("Введите логин, пароль и ФИО");
			}
			APIClient.PostRequest("api/client/register", new ClientBindingModel
			{
				ClientFIO = fio,
				Email = login,
				Password = password
			});
			Response.Redirect("Enter");
			return;
		}

		[HttpGet]
		public IActionResult Create()
		{
			ViewBag.Pastries = APIClient.GetRequest<List<PastryViewModel>>("api/main/getpastrylist");
			return View();
		}

		[HttpPost]
		public void Create(int pastry, int count)
		{
			if (APIClient.Client == null)
			{
				throw new Exception("Вы как суда попали? Суда вход только авторизованным");
			}
			if (count <= 0)
			{
				throw new Exception("Количество и сумма должны быть больше 0");
			}
			APIClient.PostRequest("api/main/createorder", new OrderBindingModel
			{
				ClientId = APIClient.Client.Id,
				PastryId = pastry,
				Count = count,
				Sum = Calc(count, pastry)
			});
			Response.Redirect("Index");
		}

		[HttpPost]
		public double Calc(int count, int pastry)
		{
			var prod = APIClient.GetRequest<PastryViewModel>($"api/main/getpastry?pastryId={pastry}");
			return count * (prod?.Price ?? 1);
		}

		[HttpGet]
		public IActionResult Mails()
		{
			if (APIClient.Client == null)
			{
				return Redirect("~/Home/Enter");
			}
			return View();
		}

        /// <summary>
        /// Switches the page.
        /// </summary>
        /// <returns>Возвращает кортеж с таблицой в html, текущей страницей писем, выключать ли кнопку пред. страницы, выключать ли кнопку след. страницы</returns>
        [HttpGet]
        public Tuple<string?, string?, bool, bool>? SwitchPage(bool isNext)
        {
            if (isNext)
            {
                APIClient.CurrentPage++;
            }
            else
            {
                if (APIClient.CurrentPage == 1)
                {
                    return null;
                }
                APIClient.CurrentPage--;
            }

            var res = APIClient.GetRequest<List<MessageInfoViewModel>>($"api/client/getmessages?clientId={APIClient.Client!.Id}&page={APIClient.CurrentPage}");
            if (isNext && (res == null || res.Count == 0))
            {
                APIClient.CurrentPage--;
                return Tuple.Create<string?, string?, bool, bool>(null, null, APIClient.CurrentPage != 1, false);
            }

            StringBuilder htmlTable = new();
            foreach (var mail in res)
            {
                htmlTable.Append("<tr>" +
                                 $"<td>{mail.DateDelivery}</td>" +
                                 $"<td>{mail.Subject}</td>" +
                                 $"<td>{mail.Body}</td>" +
                                 "<td>" + (mail.HasRead ? "Прочитано" : "Непрочитано") + "</td>" +
                                 $"<td>{mail.Reply}</td>" +
                                 "</tr>");
            }
			return Tuple.Create<string?, string?, bool, bool>(htmlTable.ToString(), APIClient.CurrentPage.ToString(), APIClient.CurrentPage != 1, true);
        }
	}
}