using System.IO;
using System.Windows;
using System.Windows.Controls;
using EngineeringSync.Setup.ViewModels;
using Microsoft.Win32;

namespace EngineeringSync.Setup.Views.Pages;

public partial class FirstProjectPage : WizardPageBase
{
    public FirstProjectPage(WizardViewModel wizard) : base(wizard)
    {
        InitializeComponent();
    }

    private void BrowseEngineering_Click(object sender, RoutedEventArgs e)
    {
        var dlg = new OpenFolderDialog
        {
            Title = "Engineering-Quellpfad wählen",
            InitialDirectory = Wizard.State.EngineeringPath
        };
        if (dlg.ShowDialog() == true)
            Wizard.State.EngineeringPath = dlg.FolderName;
    }

    private void BrowseSimulation_Click(object sender, RoutedEventArgs e)
    {
        var dlg = new OpenFolderDialog
        {
            Title = "Simulations-Zielpfad wählen",
            InitialDirectory = Wizard.State.SimulationPath
        };
        if (dlg.ShowDialog() == true)
            Wizard.State.SimulationPath = dlg.FolderName;
    }

    private void AddExt_Click(object sender, RoutedEventArgs e)
    {
        var ext = (sender as Button)?.Tag?.ToString();
        if (string.IsNullOrEmpty(ext)) return;

        var current = Wizard.State.FileExtensions?.Trim() ?? string.Empty;
        var parts = current.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
        if (!parts.Contains(ext, StringComparer.OrdinalIgnoreCase))
            Wizard.State.FileExtensions = current.Length > 0 ? current + "," + ext : ext;
    }

    public override bool Validate()
    {
        if (string.IsNullOrWhiteSpace(Wizard.State.ProjectName))
        {
            MessageBox.Show("Bitte geben Sie einen Projektnamen an.",
                "Validierung", MessageBoxButton.OK, MessageBoxImage.Warning);
            return false;
        }
        if (string.IsNullOrWhiteSpace(Wizard.State.EngineeringPath) ||
            !Directory.Exists(Wizard.State.EngineeringPath))
        {
            MessageBox.Show("Der Engineering-Pfad existiert nicht oder ist nicht angegeben.",
                "Validierung", MessageBoxButton.OK, MessageBoxImage.Warning);
            return false;
        }
        if (string.IsNullOrWhiteSpace(Wizard.State.SimulationPath) ||
            !Directory.Exists(Wizard.State.SimulationPath))
        {
            MessageBox.Show("Der Simulations-Pfad existiert nicht oder ist nicht angegeben.",
                "Validierung", MessageBoxButton.OK, MessageBoxImage.Warning);
            return false;
        }
        if (!Wizard.State.WatchAllFiles && string.IsNullOrWhiteSpace(Wizard.State.FileExtensions))
        {
            MessageBox.Show("Bitte geben Sie mindestens eine Dateiendung an oder wählen Sie 'Alle Dateitypen überwachen'.",
                "Validierung", MessageBoxButton.OK, MessageBoxImage.Warning);
            return false;
        }
        return true;
    }
}