@using Sandbox;
@using Sandbox.UI;
@namespace Sandbox
@inherits BaseControl
@attribute [CustomEditor(typeof(GameResource))]

<root>

    <div class="preview">
        @if ( ResourcePath != null )
        {
            <div class="thumb" style="background-image: url( thumb:@ResourcePath )"></div>
        }
        else
        {
            <div class="ext-badge">@Extension</div>
        }
    </div>

    <div class="content">
        @if ( Title == null )
        {
            <div class="title empty">None Selected</div>
        }
        else
        {
            <div class="title">@Title</div>
        }
        <div class="subtitle">@TypeName</div>
    </div>

</root>

@code
{
    string Title;
    string ResourcePath;
    string Extension;
    string TypeName;

    public override void Rebuild()
    {
        base.Rebuild();

        var typeDesc = TypeLibrary.GetType( Property.PropertyType );
        var assetType = typeDesc?.GetAttribute<AssetTypeAttribute>();
        Extension = assetType?.Extension?.ToUpperInvariant().Truncate( 4 ) ?? "RES";
        TypeName = assetType?.Name ?? Property.PropertyType?.Name ?? "Resource";

        OnValueChanged();
    }

    public void OnValueChanged()
    {
        var resource = Property.GetValue<GameResource>();

        if ( resource == null || !resource.IsValid() )
        {
            Title = null;
            ResourcePath = null;
            return;
        }

        Title = resource.ResourceName;
        ResourcePath = resource.ResourcePath;
    }

    void SelectFile( string filePath )
    {
        var resource = ResourceLibrary.Get<GameResource>( filePath );
        Property.SetValue( resource );
        OnValueChanged();
    }

    protected override void OnClick( MousePanelEvent e )
    {
        base.OnClick( e );

        var typeDesc = TypeLibrary.GetType( Property.PropertyType );
        var assetType = typeDesc?.GetAttribute<AssetTypeAttribute>();

        var popup = new ResourceSelectPopup();
        popup.Extension = assetType?.Extension;
        popup.CurrentValue = Property.GetValue<GameResource>()?.ResourcePath;
        popup.Parent = FindPopupPanel();
        popup.OnSelectedFile = SelectFile;

        if ( Property.TryGetAttribute<MetadataAttribute>( out var metadata ) )
            popup.Category = metadata.Tag;
    }
}