using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ShiftUI;
using System.Reflection;

namespace ShiftOS
{
    public partial class Shifter : Form
    {
        public Shifter()
        {
            InitializeComponent();
            ShowAllCategories();
        }

        public void ShowAllCategories()
        {
            var categories =
from a in AppDomain.CurrentDomain.GetAssemblies()
from t in a.GetTypes()
let attributes = t.GetCustomAttributes(typeof(ShifterCategoryAttribute), true)
where attributes != null && attributes.Length > 0
select new { Type = t, Attributes = attributes.Cast<ShifterCategoryAttribute>() };
            pnlcategories.Widgets.Clear();
            foreach(var type in categories)
            {
                Button btn = new Button();
                btn.Text = type.Attributes.First().Name;
                btn.Click += (o, a) =>
                {
                    ShowAllPropertyGridsInCategory(Activator.CreateInstance(type.Type));
                };
                pnlcategories.Widgets.Add(btn);
                btn.Show();
            }
        }

        public void ShowAllPropertyGridsInCategory(object cls)
        {

        }
    }

    [ShifterCategory("Desktop")]
    [ShifterPropertyGrid("Desktop")]
    public class ShifterDesktopSettings
    {
        [Upgrade("skinning")]
        [SkinMap("images/desktopbackground")]
        public Image DesktopBackground { get; set; }

        [Upgrade("shiftdesktopbackground")]
        [SkinMap("skin/desktopbackgroundcolour")]
        public Color DesktopBackgroundColor { get; set; }
    }

    public class UpgradeAttribute : Attribute
    {
        public UpgradeAttribute(string upgrade)
        {
            upg = upgrade;
        }

        private string upg = "";

        public bool UpgradeInstalled
        {
            get
            {
                return API.Upgrades[upg];
            }
        }
    }

    public class SkinMapAttribute : Attribute
    {
        public SkinMapAttribute(string varName)
        {
            Variable = varName;
        }

        public string Variable { get; set; }
    }

    public class ShifterCategoryAttribute : Attribute
    {
        public ShifterCategoryAttribute(string name)
        {
            Name = name;
        }

        public string Name { get; set; }
    }

    public class ShifterPropertyGridAttribute : Attribute
    {
        public ShifterPropertyGridAttribute(string name)
        {
            Name = name;
        }

        public string Name { get; set; }
    }


}