using Avalonia.Data;
using Avalonia.Data.Converters;
using Avalonia.Markup.Xaml;
using Avalonia.Markup.Xaml.MarkupExtensions;
using Cowain.Base.Helpers;
using System.Reflection;

namespace Cowain.Base.Extensions;

public class GlobalDataExtensions : MarkupExtension
{
    private string _key;
    private string? _path;
    public GlobalDataExtensions(string key)
    {
        _key = key;
    }
    public GlobalDataExtensions(string key, string path) : this(key)
    {
        _path = path;
    }
    public override object ProvideValue(IServiceProvider serviceProvider)
    {
        if (string.IsNullOrEmpty(_path))
        {
            var binding = new ReflectionBindingExtension("[" + _key + "]")
            {
                Mode = BindingMode.OneWay,
                Source = GlobalData.Instance
            };
            return binding.ProvideValue(serviceProvider);
        }
        else
        {
            //绑定复杂的对象表达式
            var bindingPath = $"[{_key}].{_path}";
            var binding = new ReflectionBindingExtension(bindingPath)
            {
                Mode = BindingMode.OneWay,
                Source = GlobalData.Instance
            };
            return binding.ProvideValue(serviceProvider);

        }

    }
}