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


namespace Azaion.LoaderUI;

public partial class Login
{
    private readonly IAzaionApi _azaionApi;
    private readonly ILogger<Login> _logger;
    private readonly DirectoriesConfig? _dirConfig;

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

    private async 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);

        var installerVersion = await GetInstallerVer();
        var localVersion = GetLocalVer();

        if (installerVersion > localVersion)
        {
            TbStatus.Text = $"Updating from {localVersion} to {installerVersion}...";
            await DownloadAndRunInstaller();
            TbStatus.Text = $"Installed {installerVersion}!";
        }
        else
            TbStatus.Text = $"Your version is up to date!";

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

    private async Task DownloadAndRunInstaller()
    {
        var (installerName, stream) = await _azaionApi.DownloadInstaller(_dirConfig?.SuiteInstallerDirectory ?? "");
        var localFileStream = new FileStream(installerName, FileMode.Create, FileAccess.Write);
        await stream.CopyToAsync(localFileStream);
        localFileStream.Close();
        stream.Close();
        var processInfo = new ProcessStartInfo(installerName)
        {
            UseShellExecute = true,
            Arguments = "/VERYSILENT"
        };

        var process = Process.Start(processInfo);
        await process!.WaitForExitAsync();
    }

    private async Task<Version> GetInstallerVer()
    {
        TbStatus.Text = "Checking for the newer version...";
        var installerName = await _azaionApi.GetLastInstallerName(_dirConfig?.SuiteInstallerDirectory ?? Constants.SUITE_FOLDER);
        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();
    }
}