using System.Reflection.Metadata;

namespace Pilz.Plugins.Advanced.UI;

public abstract class PluginModule<TPluginModuleUI> : PluginModuleBase where TPluginModuleUI : Control
{
    public delegate void PluginModuleUIEventHandler(PluginModuleBase module, TPluginModuleUI ui);

    /// <summary>
    /// Fires when a <see cref="PluginModuleUI"/> instance has been created.
    /// </summary>
    public static event PluginModuleUIEventHandler? OnUICreated;

    public bool Visible { get; set; } = true;
    public bool AllowEmbedding { get; set; } = true;

    /// <summary>
    /// Wrapper for the <see cref="PluginFeature.Icon"/> property to directly use it as <see cref="System.Drawing.Image"/>.
    /// </summary>
    public Image? Image
    {
        get => base.Icon as Image;
        set => base.Icon = value;
    }

    protected PluginModule(string moduleType, string moduleIdentifier) : base(moduleType, moduleIdentifier)
    {
    }

    protected PluginModule(string moduleType, string moduleIdentifier, string moduleName) : base(moduleType, moduleIdentifier, moduleName)
    {
    }

    public virtual void ShowUI()
    {
        ShowUI(null);
    }

    public virtual void ShowUI(PluginFunctionParameter? @params)
    {
    }

    public virtual TPluginModuleUI CreateUI()
    {
        return CreateUI(null);
    }

    public virtual TPluginModuleUI CreateUI(PluginFunctionParameter? @params)
    {
        var ui = CreateNewUI(@params);
        OnUICreated?.Invoke(this, ui);
        return ui;
    }

    protected abstract TPluginModuleUI CreateNewUI(PluginFunctionParameter? @params);
}