using System;
using Artemis.Storage.Entities.Profile;

namespace Artemis.Core.LayerBrushes;

/// <summary>
///     A class that describes a layer brush
/// </summary>
public class LayerBrushDescriptor
{
    internal LayerBrushDescriptor(string displayName, string description, string icon, Type layerBrushType, LayerBrushProvider provider)
    {
        DisplayName = displayName;
        Description = description;
        Icon = icon;
        LayerBrushType = layerBrushType;
        Provider = provider;
    }

    /// <summary>
    ///     The name that is displayed in the UI
    /// </summary>
    public string DisplayName { get; }

    /// <summary>
    ///     The description that is displayed in the UI
    /// </summary>
    public string Description { get; }

    /// <summary>
    ///     The Material icon to display in the UI, a full reference can be found
    ///     <see href="https://materialdesignicons.com">here</see>
    /// </summary>
    public string Icon { get; }

    /// <summary>
    ///     The type of the layer brush
    /// </summary>
    public Type LayerBrushType { get; }

    /// <summary>
    ///     The plugin that provided this <see cref="LayerBrushDescriptor" />
    /// </summary>
    public LayerBrushProvider Provider { get; }

    /// <summary>
    ///     Determines whether the provided <paramref name="reference" /> references to a brush provided by this descriptor
    /// </summary>
    public bool MatchesLayerBrushReference(LayerBrushReference? reference)
    {
        if (reference == null)
            return false;

        return Provider.Id == reference.LayerBrushProviderId && LayerBrushType.Name == reference.BrushType;
    }

    /// <summary>
    ///     Creates an instance of the described brush and applies it to the layer
    /// </summary>
    public BaseLayerBrush CreateInstance(Layer layer, LayerBrushEntity? entity)
    {
        if (layer == null)
            throw new ArgumentNullException(nameof(layer));

        BaseLayerBrush brush = (BaseLayerBrush) Provider.Plugin.Resolve(LayerBrushType);
        brush.Layer = layer;
        brush.Descriptor = this;
        brush.LayerBrushEntity = entity ?? new LayerBrushEntity {ProviderId = Provider.Id, BrushType = LayerBrushType.FullName ?? throw new InvalidOperationException()};

        brush.Initialize();
        return brush;
    }
}