using System;
using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using UnityEngine.UIElements;

namespace DanieleMarotta.RiversongCodeShowcase
{
    public class UIService
    {
        public IUIRoot UIRoot { get; set; }

        public UITemplateLibrary TemplateLibrary { get; set; }

        public TextFormatHelper TextFormatHelper { get; set; }

        public async UniTask<UIView> CreateView(Type type, VisualElement rootElement)
        {
            var view = (UIView)Activator.CreateInstance(type);
            await view.InitializeAsync(this, rootElement);
            return view;
        }
    }

    public static class UIServiceExtensions
    {
        public static async UniTask CreateViews<TModel, TView>(this UIService uiService, List<TModel> models, VisualElement container, VisualTreeAsset template)
            where TModel : UIModel where TView : UIView<TModel>
        {
            container.Clear();

            foreach (var model in models)
            {
                var element = template.CloneTree();
                container.Add(element);

                var view = (TView)await uiService.CreateView(typeof(TView), element);
                view.SetModel(model);
            }
        }
    }
}