using System;
using System.Collections.ObjectModel;
using System.IO;
using System.Threading.Tasks;
using Avalonia;
using Avalonia.Platform.Storage;

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.Messaging;
using CrossLangDevStudio.Messages;
using CrossLangDevStudio.Views;

namespace CrossLangDevStudio.ViewModels;

public partial class WelcomeViewModel : ViewModelBase
{
    public MainWindowViewModel Main { get; }
    public WelcomeViewModel(MainWindowViewModel main)
    {
        Main = main;
        foreach (var proj in CrossLangShell.GetRecentProjects())
        {
            RecentProjects.Add(new RecentProject(proj,Main.LoadProject));
        }
    }

    

    public ObservableCollection<RecentProject> RecentProjects { get; set; } = new ObservableCollection<RecentProject>();

    [RelayCommand]
    private async Task NewProjectAsync()
    {
        await Main.NewProjectAsync();
    }
    [RelayCommand]
    private async Task OpenProjectAsync()
    {
        await Main.OpenProjectAsync();
    }
}

public partial class RecentProject(string path, Action<string> onProjectClicked) : ObservableObject
{
    public string ProjectPath { get; set; } = path;

    private string GetDir()
    {
        var projPath = ProjectPath;
        var path = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
        if (projPath.StartsWith(path))
        {
            projPath= projPath.Replace(path, "~");
        }
        return projPath;
    }


    public string Name => $"{Path.GetFileName(ProjectPath)} ({GetDir()})";
    [RelayCommand]
    private void Click()
    {
        onProjectClicked(ProjectPath);
    }
}