using WPFluent.Controls;

using System.Windows.Markup;

namespace WPFluent.Markup;

/// <summary>
/// Custom <see cref="MarkupExtension"/> which can provide <see cref="SymbolIcon"/>.
/// </summary>
/// <example>
/// <code lang="xml"> /// &lt;ui:Button ///     Appearance="Primary" ///     Content="WPF UI button with font icon" /// 
///    Icon="{ui:SymbolIcon Symbol=Fluent24}" /&gt; ///</code> <code lang="xml"> /// &lt;ui:Button Icon="{ui:SymbolIcon
/// Fluent24}" /&gt; ///</code> <code lang="xml"> /// &lt;ui:HyperlinkButton Icon="{ui:SymbolIcon Fluent24}" /&gt;
/// ///</code> <code lang="xml"> /// &lt;ui:TitleBar Icon="{ui:SymbolIcon Fluent24}" /&gt; ///</code>
/// </example>
[ContentProperty(nameof(Symbol))]
[MarkupExtensionReturnType(typeof(SymbolIcon))]
public class SymbolIconExtension : MarkupExtension
{
    public SymbolIconExtension()
    {
    }

    public SymbolIconExtension(SymbolRegular symbol) { Symbol = symbol; }

    public SymbolIconExtension(string symbol) { Symbol = (SymbolRegular)Enum.Parse(typeof(SymbolRegular), symbol); }

    public SymbolIconExtension(SymbolRegular symbol, bool filled) : this(symbol) { Filled = filled; }

    public override object ProvideValue(IServiceProvider serviceProvider)
    {
        SymbolIcon symbolIcon = new(Symbol, filled: Filled);

        if (FontSize > 0)
        {
            symbolIcon.FontSize = FontSize;
        }

        return symbolIcon;
    }

    [ConstructorArgument("filled")]
    public bool Filled { get; set; }

    public double FontSize { get; set; }

    [ConstructorArgument("symbol")]
    public SymbolRegular Symbol { get; set; }
}