using System.Diagnostics;
using Microsoft.AspNetCore.Mvc;
using VeterinaryClinicBusinessLogics.MailWorker;
using VeterinaryClinicContracts.BindingModels;
using VeterinaryClinicContracts.BusinessLogicsContracts;
using VeterinaryClinicContracts.SearchModels;
using VeterinaryClinicDataModels.Enums;
using VeterinaryClinicWebApp.Models;

namespace VeterinaryClinicWebApp.Controllers;

public class HomeController : Controller
{
    private readonly ILogger<HomeController> _logger;

    private readonly IUserLogic _userLogic;

	private readonly IAnimalLogic _animalLogic;

	private readonly IReportLogic _reportLogic;

	private readonly AbstractMailWorker _mailLogic;

    public HomeController(ILogger<HomeController> logger, 
		IUserLogic userLogic, 
		IAnimalLogic animalLogic, 
		IReportLogic reportLogic, 
		AbstractMailWorker mailLogic)
    {
        _logger = logger;
        _userLogic = userLogic;
		_animalLogic = animalLogic;
		_reportLogic = reportLogic;
		_mailLogic = mailLogic;
    }

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

		return View(APIClient.User);
	}

	/// <summary>
	/// Личные данные пользователя
	/// </summary>
	[HttpGet]
	public IActionResult Privacy()
    {
		if (APIClient.User == null)
		{
			return Redirect("~/Home/Enter");
		}

		return View(APIClient.User);
	}

	[HttpPost]
	public void Privacy(string fullname, UserRole role, string phone, string email, string password) {
		if (APIClient.User == null)
		{
			throw new Exception("Необходимо авторизоваться!");
		}

		if (string.IsNullOrEmpty(fullname) || string.IsNullOrEmpty(phone) || string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
		{
			throw new Exception("Введены не все данные!");
		}

		_userLogic.Update(new UserBindingModel
		{
			Id = APIClient.User.Id,
			FullName = fullname,
			Role = role,
			Phone = phone,
			Email = email,
			Password = password
		});

		APIClient.User.FullName = fullname;
		APIClient.User.Role = role;
		APIClient.User.Phone = phone;
		APIClient.User.Email = email;
		APIClient.User.Password = password;

		Response.Redirect("Privacy");
	}

	/// <summary>
	/// Аутентификация
	/// </summary>
	[HttpGet]
	public IActionResult Enter()
    {
		if (APIClient.User != null)
		{
			throw new Exception("Вы уже авторизовались!");
		}

		return View();
	}

	[HttpPost]
	public void Enter(string email, string password)
	{
		if (string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
		{
			throw new Exception("Введены не все данные!");
		}

		APIClient.User = _userLogic.ReadElement(new UserSearchModel
		{
			Email = email,
			Password = password
		});
		if (APIClient.User == null)
		{
			throw new Exception("Неверный логин/пароль");
		}

		Response.Redirect("Index");
	}

	/// <summary>
	/// Регистрация
	/// </summary>
	[HttpGet]
	public IActionResult Register()
	{
		if (APIClient.User != null)
		{
			throw new Exception("Вы уже зарегистрировались!");
		}

		return View();
	}

	[HttpPost]
	public void Register(string fullname, UserRole role, string phone, string email, string password)
	{
		if (string.IsNullOrEmpty(fullname) || string.IsNullOrEmpty(phone) || string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password)) 
		{
			throw new Exception("Введены не все данные!");
		}

		_userLogic.Create(new UserBindingModel 
		{ 
			FullName = fullname,
			Role = role,
			Phone = phone,
			Email = email, 
			Password = password 
		});

		Response.Redirect("Enter");
	}

    /// <summary>
    /// Выйти из аккаунта
    /// </summary>
    [HttpGet]
    public void Logout()
    {
        if (APIClient.User == null)
        {
            throw new Exception("Необходимо авторизоваться!");
        }

        APIClient.User = null;
        Response.Redirect("Enter");
    }

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

        return View();
    }

    /// <summary>
    /// Вывести на форму отчёт
    /// </summary>
    [HttpPost]
    public IActionResult Reports(DateTime dateFrom, DateTime dateTo)
    {
        if (APIClient.User == null)
        {
            throw new Exception("Необходимо авторизоваться!");
        }

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

        var data = _reportLogic.GetVisitsInfo(new ReportBindingModel
        {
            DateFrom = dateFrom,
            DateTo = dateTo,
            UserId = APIClient.User.Id
        });

        return View(data);
    }

    /// <summary>
    /// Создать отчёт в формате Word
    /// </summary>
	[HttpPost]
    public void CreateReportWord()
    {
        if (APIClient.User == null)
        {
            throw new Exception("Необходимо авторизоваться!");
        }

        _reportLogic.SaveAnimalServicesToWordFile(new ReportBindingModel
        {
            FileName = $@"D:\ {DateTime.Now.ToString("dd-MM-yyyy HH-mm-ss")}.docx",
            UserId = APIClient.User.Id
        });

        Response.Redirect("/Home/Reports");
    }

    /// <summary>
    /// Создать отчёт в формате Excel
    /// </summary>
	[HttpPost]
    public void CreateReportExcel()
    {
        if (APIClient.User == null)
        {
            throw new Exception("Необходимо авторизоваться!");
        }

        _reportLogic.SaveAnimalServicesToExcelFile(new ReportBindingModel
        {
            FileName = $@"D:\ {DateTime.Now.ToString("dd-MM-yyyy HH-mm-ss")}.xlsx",
            UserId = APIClient.User.Id
        });

        Response.Redirect("/Home/Reports");
    }

    /// <summary>
    /// Создать отчёт в формате Pdf
    /// </summary>
	[HttpPost]
    public void CreateReportPdf(DateTime dateFrom, DateTime dateTo)
    {
        if (APIClient.User == null)
        {
            throw new Exception("Необходимо авторизоваться!");
        }

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

        _reportLogic.SaveVisitsInfoToPdfFile(new ReportBindingModel
        {
            FileName = $@"D:\ {DateTime.Now.ToString("dd-MM-yyyy HH-mm-ss")}.pdf",
            UserId = APIClient.User.Id,
            DateFrom = dateFrom,
            DateTo = dateTo
        });

        Response.Redirect("/Home/Reports");
    }

    /// <summary>
    /// Отправить по почте отчёт
    /// </summary>
    [HttpPost]
    public void SendReport(IFormFile fileUpload)
    {
        if (APIClient.User == null)
        {
            throw new Exception("Необходимо авторизоваться!");
        }

        if (fileUpload == null || fileUpload.Length <= 0)
        {
            throw new Exception("Файл не выбран или пуст!");
        }

        // Путь до файла
        var uploadPath = @"D:\";
        var fileName = Path.GetFileName(fileUpload.FileName);
        var fullPath = Path.Combine(uploadPath, fileName);

        _mailLogic.MailSendAsync(new MailSendInfoBindingModel
        {
            MailAddress = APIClient.User.Email,
            Subject = $"{fileName.Split('.')[0]}",
            Text = $"Отчёт отправлен {DateTime.Now}",
            Path = fullPath
        });

        Response.Redirect("/Home/Reports");
    }

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