using System.Runtime.InteropServices;
using Catalog.Communication.DependencyInjection;
using ImageCatalog;
using ImageCatalog_2.Services;
using MaddoShared;
using Microsoft.Extensions.DependencyInjection;
using AutoMapper;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Abstractions;
using Microsoft.Extensions.Logging.Console;
using System.IO;
using Microsoft.Extensions.Options;
using Avalonia;
using Avalonia.Controls.ApplicationLifetimes;

namespace ImageCatalog_2;

static class Program
{
#if WINDOWS
    [DllImport("kernel32.dll", SetLastError = true)]
    private static extern bool AllocConsole();

    [DllImport("kernel32.dll", SetLastError = true)]
    static extern IntPtr GetStdHandle(int nStdHandle);

    private const int STD_OUTPUT_HANDLE = -11;
    private const int STD_ERROR_HANDLE = -12;

    [DllImport("kernel32.dll", SetLastError = true)]
    static extern bool SetStdHandle(int nStdHandle, IntPtr handle);

    [DllImport("kernel32.dll", SetLastError = true)]
    static extern IntPtr GetConsoleWindow();

    [DllImport("kernel32.dll", SetLastError = true)]
    static extern bool AttachConsole(int dwProcessId);

    [DllImport("kernel32.dll", SetLastError = true)]
    static extern IntPtr CreateFile(
        string lpFileName,
        uint dwDesiredAccess,
        uint dwShareMode,
        IntPtr lpSecurityAttributes,
        uint dwCreationDisposition,
        uint dwFlagsAndAttributes,
        IntPtr hTemplateFile);

    private const uint GENERIC_WRITE = 0x40000000;
    private const uint OPEN_EXISTING = 3;

    private static void RedirectConsoleOutput()
    {
        var stdOutHandle = CreateFile("CONOUT$", GENERIC_WRITE, 0, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
        var safeFileHandle = new Microsoft.Win32.SafeHandles.SafeFileHandle(stdOutHandle, true);
        var fileStream = new FileStream(safeFileHandle, FileAccess.Write);
        var standardOutput = new StreamWriter(fileStream) { AutoFlush = true };
        Console.SetOut(standardOutput);
        Console.SetError(standardOutput);
    }
#endif

    public static IServiceProvider ServiceProvider { get; private set; } = default!;

    public static Avalonia.AppBuilder BuildAvaloniaApp()
        => Avalonia.AppBuilder.Configure<AvaloniaApp>()
            .UsePlatformDetect()
            .LogToTrace();

    [STAThread]
    static void Main(string[] args)
    {
#if WINDOWS
        System.Windows.Forms.Application.SetHighDpiMode(System.Windows.Forms.HighDpiMode.SystemAware);
        System.Windows.Forms.Application.EnableVisualStyles();
        System.Windows.Forms.Application.SetCompatibleTextRenderingDefault(false);

        AllocConsole();
        RedirectConsoleOutput();
#endif

        var serviceCollection = new ServiceCollection();
        ConfigureServices(serviceCollection);

        ServiceProvider = serviceCollection.BuildServiceProvider();

        var serviceProvider = ServiceProvider;

        // Determine UI based on command line. Default: WinForms. Use --wpf for WPF, --avalonia for Avalonia.
        bool useWpf = args is not null && Array.Exists(args, a => string.Equals(a, "--wpf", StringComparison.OrdinalIgnoreCase));
        bool useAvalonia = args is not null && Array.Exists(args, a => string.Equals(a, "--avalonia", StringComparison.OrdinalIgnoreCase));

        if (useAvalonia)
        {
            BuildAvaloniaApp().StartWithClassicDesktopLifetime(args ?? Array.Empty<string>());
            return;
        }

#if WINDOWS
        if (useWpf)
        {
            var wpfApp = new System.Windows.Application();
            try
            {
                wpfApp.Resources.MergedDictionaries.Add(new System.Windows.ResourceDictionary { Source = new Uri("pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml") });
                wpfApp.Resources.MergedDictionaries.Add(new System.Windows.ResourceDictionary { Source = new Uri("pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml") });
                wpfApp.Resources.MergedDictionaries.Add(new System.Windows.ResourceDictionary { Source = new Uri("pack://application:,,,/MahApps.Metro;component/Styles/Themes/Light.Blue.xaml") });

                try
                {
                    ControlzEx.Theming.ThemeManager.Current.ChangeTheme(wpfApp, "Light.Blue");
                }
                catch
                {
                    // ignore if ThemeManager API isn't present
                }
            }
            catch
            {
                // If resources fail to load, continue silently
            }

            var wpfMain = serviceProvider.GetService(typeof(ImageCatalog_2.MainWindow)) as ImageCatalog_2.MainWindow;
            if (wpfMain is not null)
            {
                wpfApp.Run(wpfMain);
                return;
            }

            // If WPF was requested but not available, fall through to WinForms.
        }

        // Default / fallback to WinForms UI
        var mainForm = serviceProvider.GetRequiredService<MainForm>();
        System.Windows.Forms.Application.Run(mainForm);
#else
        // On non-Windows, Avalonia is the only available UI
        BuildAvaloniaApp().StartWithClassicDesktopLifetime(args ?? Array.Empty<string>());
#endif
    }

    private static void ConfigureServices(ServiceCollection services)
    {
        services.AddAutoMapper(cfg => { }, typeof(Program));

        services.AddTransient<ITestService, TestService>();
        services.AddTransient<ISettingsService, SettingsService>();

        services.AddTransient<DataModel>(sp =>
        {
            var testService = sp.GetRequiredService<ITestService>();
            var settingsService = sp.GetRequiredService<ISettingsService>();
            var imageCreation = sp.GetRequiredService<ImageCreationService>();
            var aiExtractionService = sp.GetRequiredService<IAiExtractionService>();
            var imageProcessingCoordinator = sp.GetRequiredService<IImageProcessingCoordinator>();
            var picSettings = sp.GetRequiredService<PicSettings>();
            var mapper = sp.GetRequiredService<IMapper>();
            var logger = sp.GetRequiredService<ILogger<DataModel>>();
            var versionProvider = sp.GetService<MaddoShared.IVersionProvider>();

            return new DataModel(testService, settingsService, imageCreation, aiExtractionService, imageProcessingCoordinator, picSettings, mapper, logger, versionProvider);
        });

        services.AddTransient<IAiExtractionService, AiExtractionService>();
        services.AddTransient<IImageProcessingCoordinator, ImageProcessingCoordinator>();
        services.AddTransient<ImageCreationService>();
#if WINDOWS
        services.AddTransient<ImageCreatorGDI>();
#endif
        services.AddTransient<ImageCreatorImageSharp>();
        services.AddTransient<ImageCreatorMapper>();

        services.AddTransient<IImageCreator>(sp => sp.GetRequiredService<ImageCreatorMapper>());

        var userPrefsPath = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
            "ImageCatalog", "userprefs.xml");
        services.AddSingleton(new ParametriSetup(userPrefsPath));
        services.AddSingleton<PicSettings>();

        services.AddCatalogCommunication(options =>
        {
            options.BaseUri = new Uri("https://www.regalamiunsorriso.it/");
            options.AdminPageBasePath = "admin/pg_RUS";
            options.ReceiveFilePath = "ReceiveFile.abl";
            options.RequestTimeout = TimeSpan.FromSeconds(30);
            options.RetryCount = 2;
            options.RetryBaseDelay = TimeSpan.FromMilliseconds(250);
        });

        services.AddTransient<AvaloniaMainWindow>();

#if WINDOWS
        services.AddTransient<MainForm>();
        services.AddTransient<ImageCatalog_2.MainWindow>();
#endif

        services.AddSingleton<MaddoShared.IVersionProvider, MaddoShared.VersionProvider>();

        services.AddLogging(configure =>
        {
            configure.AddCustomFormatter();
            configure.AddConsole();
            configure.SetMinimumLevel(LogLevel.Debug);
        });
    }
}

public static class ConsoleLoggerExtensions
{
    public static ILoggingBuilder AddCustomFormatter(
        this ILoggingBuilder builder) =>
        builder
        .AddConsole(options => options.FormatterName = nameof(CustomLoggingFormatter))
        .AddConsoleFormatter<CustomLoggingFormatter, ConsoleFormatterOptions>()
        .AddFilter("LuckyPennySoftware.AutoMapper.License", LogLevel.None);
}
public sealed class CustomLoggingFormatter : ConsoleFormatter, IDisposable
{
    private readonly IDisposable? _optionsReloadToken;
    private ConsoleFormatterOptions _formatterOptions;
    public CustomLoggingFormatter(IOptionsMonitor<ConsoleFormatterOptions> options)
        // Case insensitive  
        : base(nameof(CustomLoggingFormatter)) =>
        (_optionsReloadToken, _formatterOptions) =
        (options.OnChange(ReloadLoggerOptions), options.CurrentValue);
    private void ReloadLoggerOptions(ConsoleFormatterOptions options) =>
        _formatterOptions = options;

    public override void Write<TState>(
        in LogEntry<TState> logEntry,
        IExternalScopeProvider? scopeProvider,
        TextWriter? textWriter)
    {
        if (textWriter is null)
        {
            return;
        }

        string? message =
            logEntry.Formatter?.Invoke(
                logEntry.State, logEntry.Exception);

        if (message is null)
        {
            return;
        }

        var timestamp = DateTimeOffset.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");
        var level = logEntry.LogLevel.ToString().ToUpperInvariant();
        var category = logEntry.Category ?? "App";

        var line = $"{timestamp} [{level}] {category}: {message}";
        textWriter.WriteLine(line);
        System.Diagnostics.Debug.WriteLine(line);

        if (logEntry.Exception is not null)
        {
            var exceptionText = logEntry.Exception.ToString();
            textWriter.WriteLine(exceptionText);
            System.Diagnostics.Debug.WriteLine(exceptionText);
        }
    }
    public void Dispose() => _optionsReloadToken?.Dispose();
}