using System;
using System.Collections.Generic;
using uMVVM.Sources.Infrastructure;
using UnityEngine;

namespace Game.MVVM.Model
{
    public class HallSceneMainMenuView : UnityGuiView<HallSceneMainMenuViewModel>
    {
        public Transform parentTrans;
        public MenuItemView itemView;

        [SerializeField] private List<GameObject> _listGo = new List<GameObject>();

        protected override void OnInitialize()
        {
            base.OnInitialize();
            this.itemView.gameObject.SetActive(false);
        }

        public override void OnBindingContextChanged(HallSceneMainMenuViewModel oldValue, HallSceneMainMenuViewModel newValue)
        {
            base.OnBindingContextChanged(oldValue, newValue);

            if (oldValue != null)
                oldValue.MenuItems.OnValueChanged -= this.OnMenuItemsValueChanged;

            if (newValue != null)
                newValue.MenuItems.OnValueChanged += this.OnMenuItemsValueChanged;
        }

        private void OnMenuItemsValueChanged(List<MenuItem> oldvalue, List<MenuItem> newvalue)
        {
            var viewGo = this.itemView.gameObject;

            if (this._listGo.Count > 0)
                foreach (var o in this._listGo)
                {
                    GameObject.Destroy(o);
                }

            for (var i = 0; i < newvalue.Count; i++)
            {
                var menuItem = newvalue[i];
                var instantiate = GameObject.Instantiate(viewGo, this.parentTrans);
                instantiate.transform.localScale = Vector3.one;
                instantiate.name = menuItem.menuName;
                instantiate.SetActive(true);
                this._listGo.Add(instantiate);

                var menuItemView = instantiate.GetComponent<MenuItemView>();
                menuItemView.BindingContext = new MenuItemViewModel() { ParentViewModel = this.BindingContext };
                menuItemView.BindingContext.InitData(menuItem);
                menuItemView.Reveal();
                menuItemView.BindingContext.OnClick += this.OnClickButton;
            }
        }

        public void OnClickButton(string id, string name)
        {
            Debug.Log($"点击了 {id} name is {name}");
            EventManager.Instance.FireNow(this, new HallSceneClickMenuEventArgs(id, name));
        }
    }
}