Connected.Components/Components/UIComponent.cs

using Connected.Annotations;
using Connected.Middleware;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Logging;

namespace Connected.Components;

public abstract class UIComponent : ComponentBase
{
	[Inject]
	private ILoggerFactory LoggerFactory { get; set; }
	[Inject]
	private IComponentMiddlewareService? MiddlewareService { get; set; }

	private ILogger _logger;
	protected ILogger Logger => _logger ??= LoggerFactory.CreateLogger(GetType());

	/// <summary>
	/// User class names, separated by space.
	/// </summary>
	[Parameter]
	[Category(CategoryTypes.ComponentBase.Common)]
	public string Class { get; set; }

	/// <summary>
	/// User styles, applied on top of the component's own classes and styles.
	/// </summary>
	[Parameter]
	[Category(CategoryTypes.ComponentBase.Common)]
	public string Style { get; set; }

	/// <summary>
	/// Use Tag to attach any user data object to the component for your convenience.
	/// </summary>
	[Parameter]
	[Category(CategoryTypes.ComponentBase.Common)]
	public object Tag { get; set; }

	/// <summary>
	/// UserAttributes carries all attributes you add to the component that don't match any of its parameters.
	/// They will be splatted onto the underlying HTML tag.
	/// </summary>
	[Parameter(CaptureUnmatchedValues = true)]
	[Category(CategoryTypes.ComponentBase.Common)]
	public Dictionary<string, object> UserAttributes { get; set; } = new Dictionary<string, object>();

	/// <summary>
	/// If the UserAttributes contain an ID make it accessible for WCAG labelling of input fields
	/// </summary>
	public string FieldId => (UserAttributes?.ContainsKey("id") == true ? UserAttributes["id"].ToString() : $"mudinput-{Guid.NewGuid()}");

	protected Type ResolveComponent<TComponent>()
	{
		if (MiddlewareService is null)
			return typeof(TComponent);

		if (MiddlewareService.Select<TComponent>() is Type type)
			return type;

		return typeof(TComponent);
	}
}