using System.Collections.Generic;
using UnityEngine;
using static Convention.WindowsUI.Variant.PropertiesWindow;

namespace Convention.WindowsUI.Variant
{
    [RequireComponent(typeof(PropertiesWindow))]
    public class HierarchyWindow : MonoSingleton<HierarchyWindow>
    {
        [Resources] public WindowManager windowManager;
        [Resources, SerializeField] private PropertiesWindow m_PropertiesWindow;
        private RegisterWrapper<HierarchyWindow> m_RegisterWrapper;

        private Dictionary<int, object> AllReferenceLinker = new();
        private Dictionary<object, int> AllReferenceLinker_R = new();
        private Dictionary<object, HierarchyItem> AllReferenceItemLinker = new();

        /// <summary>
        /// 添加引用以及对应的tab
        /// </summary>
        /// <param name="reference"></param>
        /// <param name="item"></param>
        public void AddReference([In] object reference, [In] HierarchyItem item)
        {
            int code = reference.GetHashCode();
            this.AllReferenceLinker[code] = reference;
            this.AllReferenceLinker_R[reference] = code;
            this.AllReferenceItemLinker[reference] = item;
        }
        public void RemoveReference([In] object reference)
        {
            int code = this.AllReferenceLinker_R[reference];
            this.AllReferenceLinker_R.Remove(reference);
            this.AllReferenceLinker.Remove(code);
            this.AllReferenceItemLinker.Remove(reference);
        }
        public object GetReference(int code) => this.AllReferenceLinker[code];
        public int GetReferenceCode([In] object reference) => this.AllReferenceLinker_R[reference];
        public HierarchyItem GetReferenceItem([In] object reference) => this.AllReferenceItemLinker[reference];
        public bool ContainsReference(int code) => this.AllReferenceLinker.ContainsKey(code);
        public bool ContainsReference(object reference) => this.AllReferenceLinker_R.ContainsKey(reference);

        public void SetHierarchyItemParent([In] HierarchyItem childItemTab, [In] HierarchyItem parentItemTab)
        {
            //object target = childItemTab.target;
            //childItemTab.Entry.Release();
            //parentItemTab.CreateSubPropertyItemWithBinders(target);
            childItemTab.transform.SetParent(parentItemTab.transform);
        }
        public void SetHierarchyItemParent([In] HierarchyItem childItemTab, [In] HierarchyWindow rootWindow)
        {
            //object target = childItemTab.target;
            //childItemTab.Entry.Release();
            //rootWindow.CreateRootItemEntryWithBinders(target);
            childItemTab.transform.SetParent(rootWindow.m_PropertiesWindow.TargetWindowContent);
        }


        public List<ItemEntry> CreateRootItemEntryWithBinders(params object[] binders)
        {
            List<ItemEntry> entries = m_PropertiesWindow.CreateRootItemEntries(binders.Length);
            for (int i = 0, e = binders.Length; i != e; i++)
            {
                var item = entries[i].ref_value.GetComponent<HierarchyItem>();
                item.target = binders[i];
                AddReference(binders[i], item);
            }
            return entries;
        }

        public ItemEntry CreateRootItemEntryWithGameObjectAndSetParent([In] GameObject binder, [In] HierarchyItem parentItemTab)
        {
            var result = parentItemTab.CreateSubPropertyItemWithBinders(binder)[0];
            var root = result.ref_value.GetComponent<HierarchyItem>();
            root.title = binder.name;
            root.target = binder;
            AddReference(binder, root);
            foreach (Transform child in binder.transform)
            {
                CreateRootItemEntryWithGameObjectAndSetParent(child.gameObject, root);
            }
            return result;
        }
        public ItemEntry CreateRootItemEntryWithGameObject([In] GameObject binder)
        {
            var result = m_PropertiesWindow.CreateRootItemEntries(1)[0];
            var root = result.ref_value.GetComponent<HierarchyItem>();
            root.title = binder.name;
            root.target = binder;
            AddReference(binder, root);
            foreach (Transform child in binder.transform)
            {
                CreateRootItemEntryWithGameObjectAndSetParent(child.gameObject, root);
            }
            return result;
        }

        private void Start()
        {
            m_RegisterWrapper = new(() => { });
        }

        private void Reset()
        {
            windowManager = GetComponent<WindowManager>();
            m_PropertiesWindow = GetComponent<PropertiesWindow>();
            AllReferenceLinker = new();
        }
        private void OnDestroy()
        {
            m_RegisterWrapper.Release();
        }

        public void RenameTabWhenItFocus()
        {
            Transform focus = FocusWindowIndictaor.instance.Target;
            var item = focus.GetComponent<HierarchyItem>();
            while (item == null && focus != null)
            {
                focus = focus.parent;
                if (focus == null)
                    return;
                item = focus.GetComponent<HierarchyItem>();
            }
            if (item != null)
            {
                SharedModule.instance.Rename(item.text, x =>
                {
                    item.text = x;
                });
            }
        }
    }
}