using System.Diagnostics;
using System.IO;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using Microsoft.Extensions.Options;

namespace Azaion.LoaderUI;

public partial class Login
{
    private readonly IAzaionApi _azaionApi;
    private readonly DirectoriesConfig _dirConfig;

    public Login(IAzaionApi azaionApi, IOptions<DirectoriesConfig> directoriesConfig)
    {
        _azaionApi = azaionApi;
        _dirConfig = directoriesConfig.Value;
        InitializeComponent();
    }

    private void LoginClick(object sender, RoutedEventArgs e)
    {
        var creds = new ApiCredentials(TbEmail.Text, TbPassword.Password);
        if (!creds.IsValid())
            return;

        LoginBtn.Cursor = Cursors.Wait;
        Cursor = Cursors.Wait;

        _azaionApi.Login(creds);

        if (GetInstallerVer() > GetLocalVer())
            DownloadAndRunInstaller();

        Process.Start(Constants.AZAION_SUITE_EXE, $"-e {creds.Email} -p {creds.Password}");
        Close();
    }

    private void DownloadAndRunInstaller()
    {
        var (installerName, stream) = _azaionApi.DownloadInstaller(_dirConfig.SuiteInstallerDirectory);
        var localFileStream = new FileStream(installerName, FileMode.Create, FileAccess.Write);
        stream.CopyTo(localFileStream);
        localFileStream.Close();
        stream.Close();

        var processInfo = new ProcessStartInfo(installerName)
        {
            UseShellExecute = true,
            Verb = "runas"
        };

        Process.Start(processInfo);
    }

    private Version GetInstallerVer()
    {
        var installerName = _azaionApi.GetLastInstallerName(_dirConfig.SuiteInstallerDirectory);
        var version = installerName
            .Replace("AzaionSuite.Iterative.", "")
            .Replace(".exe", "");
        return new Version(version);
    }

    private Version GetLocalVer()
    {
        var localFileInfo = FileVersionInfo.GetVersionInfo(Constants.AZAION_SUITE_EXE);
        if (string.IsNullOrWhiteSpace(localFileInfo.ProductVersion))
            throw new Exception($"Can't find {Constants.AZAION_SUITE_EXE} and its version");
        return new Version(localFileInfo.FileVersion!);
    }

    private void CloseClick(object sender, RoutedEventArgs e) => Close();

    private void MainMouseMove(object sender, MouseEventArgs e)
    {
        if (e.OriginalSource is Button || e.OriginalSource is TextBox)
            return;

        if (e.LeftButton == MouseButtonState.Pressed)
            DragMove();
    }
}