using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using BF;

namespace BFEditor
{	
	[CustomEditor(typeof(NodeHelper))]
	public class NodeHelperInspector : Editor
	{
	    private const uint HASH_SEED = 31;
	    NodeHelper helper;
	    private ISet<GameObject> gameobjectSet = new HashSet<GameObject>();
	    private ISet<uint> hashNameSet = new HashSet<uint>();
	    private ISet<string> nameSet = new HashSet<string>();
	
	    void OnEnable()
	    {
	        helper = target as NodeHelper;
	    }
	
	    public override void OnInspectorGUI()
	    {
	        gameobjectSet.Clear();
	        hashNameSet.Clear();
	        nameSet.Clear();
	        GUILayout.Space(10);
	        for (int i = 0; i < helper.prefabList.Count; ++i)
	        {
	            DrawPrefab(i);
	            HashName(i);
	            CheckPrefabList(i);
	        }
	        DrawAddBtn();
	        DrawClipBoardBtn();
	    }
	
	    void DrawPrefab(int index)
	    {
	        if (index < 0 || index >= helper.prefabList.Count)
	            return;
	        GUILayout.BeginHorizontal();
	        {
	            EditorGUI.BeginChangeCheck();
	            GameObject go = (GameObject)EditorGUILayout.ObjectField("", helper.prefabList[index].gameObject,
	                 typeof(GameObject), true, GUILayout.Width(140));
	            if (EditorGUI.EndChangeCheck())
	            {
	                Undo.RecordObject(helper, helper.name + "Change GameObject Info GameObject");
	                GameObjectInfo info = new GameObjectInfo();
	                string path = "";
	                if (go == null)
	                {
	                    info.gameObject = go;
	                }
	                else
	                {
	                    Utils.GetTransformPath(go.transform, helper.transform, ref path);
	                    path = path.Replace("/", ".");
	                    info.gameObject = go;
	                    info.name = path;
	                    info.hashName = BKDRHash(path);
	                    info.objectType = GetGameObjectType(go);
	                }
	                helper.prefabList[index] = info;
	                EditorUtility.SetDirty(helper);
	            }
	
	            if (GUILayout.Button("Copy", GUILayout.Width(55)))
	            {
	                Undo.RecordObject(helper, helper.name + "Copy Name");
	                EditorApplication.Beep();
	                TextEditor te = new TextEditor();
	                var goInfo = helper.prefabList[index];
	                te.text = goInfo.name;
	                te.SelectAll();
	                te.Copy();
	            }
	            if (GUILayout.Button("Remove", GUILayout.Width(55)))
	            {
	                Undo.RecordObject(helper, helper.name + "Remove GameObject Info");
	                EditorApplication.Beep();
	                helper.prefabList.RemoveAt(index);
	                EditorUtility.SetDirty(helper);
	            }
	            if (GUILayout.Button("Update", GUILayout.Width(55)))
	            {
	                Undo.RecordObject(helper, helper.name + "Update GameObject Info");
	                EditorApplication.Beep();
	                var goInfo = helper.prefabList[index];
	                var newPath = string.Empty;
	                Utils.GetTransformPath(go.transform, helper.transform, ref newPath);
	                newPath = newPath.Replace("/", ".");
	                goInfo.name = newPath;
	                goInfo.hashName = BKDRHash(newPath);
	                helper.prefabList[index] = goInfo;
	                EditorUtility.SetDirty(helper);
	            }
	
	            GUILayout.Label(GetGameObjectTypeName(helper.prefabList[index].objectType), EditorStyles.label, GUILayout.Width(40));
	
	            GUILayout.Label("Name", EditorStyles.label, GUILayout.Width(35));
	            EditorGUI.BeginChangeCheck();
	            string newName = GUILayout.TextField(helper.prefabList[index].name);
	            if (EditorGUI.EndChangeCheck())
	            {
	                Undo.RecordObject(helper, helper.name + "Change GameObject Info name");
	                GameObjectInfo info = new GameObjectInfo();
	                info.gameObject = helper.prefabList[index].gameObject;
	                info.name = newName;
	                info.hashName = BKDRHash(newName);
	                info.objectType = GetGameObjectType(info.gameObject);
	                helper.prefabList[index] = info;
	                EditorUtility.SetDirty(helper);
	            }
	        }
	        GUILayout.EndHorizontal();
	    }
	
	    void HashName(int index)
	    {
	        if (index < 0 || index >= helper.prefabList.Count)
	            return;
	        if (!string.IsNullOrEmpty(helper.prefabList[index].name))
	        {
	            uint hashName = BKDRHash(helper.prefabList[index].name);
	            if (hashName != helper.prefabList[index].hashName)
	            {
	                Undo.RecordObject(helper, helper.name + "add hash name");
	                GameObjectInfo info = new GameObjectInfo();
	                info.gameObject = helper.prefabList[index].gameObject;
	                info.name = helper.prefabList[index].name;
	                info.hashName = hashName;
	                info.objectType = GetGameObjectType(info.gameObject);
	                helper.prefabList[index] = info;
	                EditorUtility.SetDirty(helper);
	            }
	        }
	    }
	
	    void CheckPrefabList(int index)
	    {
	        if (index < 0 || index >= helper.prefabList.Count)
	            return;
	        GameObjectInfo info = helper.prefabList[index];
	        if (info.gameObject == null)
	        {
	            return;
	        }
	        if (!gameobjectSet.Add(info.gameObject))
	        {
	            Debug.LogError("prefab list have the same GameObject");
	        }
	        if (!hashNameSet.Add(info.hashName))
	        {
	            Debug.LogError("prefab list have the same hashName");
	        }
	        if (!nameSet.Add(info.name))
	        {
	            Debug.LogError("prefab list have the same name");
	        }
	    }
	
	    void DrawAddBtn()
	    {
	        if (GUILayout.Button("Add"))
	        {
	            Undo.RecordObject(helper, helper.name + "Add GameObject Info");
	            EditorApplication.Beep();
	            helper.prefabList.Add(new GameObjectInfo());
	            EditorUtility.SetDirty(helper);
	        }
	    }
	
	    void DrawClipBoardBtn()
	    {
	        if (GUILayout.Button("ClipBoardMap"))
	        {
	            string content = string.Empty;
	            var list = helper.prefabList;
	            for (int i = 0; i < list.Count; i++)
	            {
	                var info = list[i];
	                var itemDesc = string.Format("local {0} = uiMap['{1}']\n", info.gameObject.name, info.name);
	                content += itemDesc;
	            }
	
	            GUIUtility.systemCopyBuffer = content;
	        }
	    }
	
	    private static uint BKDRHash(string name)
	    {
	        uint h = 0;
	        var chars = name.ToCharArray();
	        for (int i = 0; i < chars.Length; ++i)
	        {
	            h = h * HASH_SEED + (byte)chars[i];
	        }
	        return h;
	    }
	
	    private static string GetGameObjectTypeName(int gameObjectType)
	    {
	        switch (gameObjectType){
	            case (int)GameObjectType.Default:
	                return "默认";
	            case (int)GameObjectType.UIObject:
	                return "UI预制件";
	            case (int)GameObjectType.EffectObject:
	                return "特效";
				case (int)GameObjectType.CharacterObject:
					return "角色";
	            case (int)GameObjectType.SpineMeshObject:
	                return "MeshSpine";
	            case (int)GameObjectType.SpineUIObject:
	                return "UISpine";
	            case (int)GameObjectType.TimelineObject:
	                return "TimeLine";
	            default:
	                return "默认";
	        }
	    }
	
	    private static int GetGameObjectType(GameObject go)
	    {
	        if (go == null)
	        {
	            return (int)GameObjectType.Default;
	        }
	        if (go.GetComponent<PrefabHelper>() != null)
	        {
	            return (int)GameObjectType.UIObject;
	        }
	        else if(go.GetComponent<EffectHelper>() != null)
	        {
	            return (int)GameObjectType.EffectObject;
	        }
			else if(go.GetComponent<CharacterHelper>() != null)
	        {
	            return (int)GameObjectType.CharacterObject;
	        }
	        else if(go.GetComponent<TimelineHelper>() != null)
	        {
	            return (int)GameObjectType.TimelineObject;
	        }
	        else if(go.GetComponent<Spine.Unity.SkeletonGraphic>() != null)
	        {
	            return (int)GameObjectType.SpineUIObject;
	        }
	        else if(go.GetComponent<Spine.Unity.SkeletonAnimation>() != null)
	        {
	            return (int)GameObjectType.SpineMeshObject;
	        }
	        return (int)GameObjectType.Default;
	    }
	}
}