using Thousandto.Editor.Excel;
using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEngine;

namespace Thousandto.DIY
{
    class CopyUILabelEditor : EditorWindow
    {
        [MenuItem("Ares/CopyUILabelEditor")]
        static void Open()
        {
            if (Application.isPlaying)
            {
                return;
            }

            var win = (CopyUILabelEditor)EditorWindow.GetWindow(typeof(CopyUILabelEditor));
            win.Show();
        }

        private string _targetPath = string.Empty;
        private string _originPath = string.Empty;
        private string _writePath = string.Empty;
        void OnGUI()
        {
            EditorGUILayout.BeginVertical();
            EditorGUILayout.LabelField("选择路径");
            if (GUILayout.Button("浏览", GUILayout.Width(50)))
            {
                _targetPath = EditorUtility.OpenFolderPanel("Change Layer Prefab Path", _targetPath, "");
            }
            if (string.IsNullOrEmpty(_targetPath))
            {
                EditorGUILayout.LabelField("null...");
            }
            else
            {
                EditorGUILayout.LabelField(_targetPath);
            }

            if (GUILayout.Button("浏览", GUILayout.Width(50)))
            {
                _originPath = EditorUtility.OpenFolderPanel("Change Layer Prefab Path", _originPath, "");
            }
            if (string.IsNullOrEmpty(_originPath))
            {
                EditorGUILayout.LabelField("null...");
            }
            else
            {
                EditorGUILayout.LabelField(_originPath);
            }


            if (GUILayout.Button("浏览", GUILayout.Width(50)))
            {
                _writePath = EditorUtility.OpenFolderPanel("Change Layer Prefab Path", _writePath, "");
            }
            if (string.IsNullOrEmpty(_writePath))
            {
                EditorGUILayout.LabelField("null...");
            }
            else
            {
                EditorGUILayout.LabelField(_writePath);
            }

            if (GUILayout.Button("转换", GUILayout.Width(50)))
            {
                if (string.IsNullOrEmpty(_targetPath) || !Directory.Exists(_targetPath))
                {
                    UnityEngine.Debug.LogError("请输入正确的目标路径！");
                    return;
                }

                if (string.IsNullOrEmpty(_originPath) || !Directory.Exists(_originPath))
                {
                    UnityEngine.Debug.LogError("请输入正确的源路径！");
                    return;
                }

                if (string.IsNullOrEmpty(_writePath) || !Directory.Exists(_writePath))
                {
                    UnityEngine.Debug.LogError("请输入正确的写出路径！");
                    return;
                }

                DirectoryInfo direction = new DirectoryInfo(_targetPath);
                FileInfo[] files = direction.GetFiles("*.prefab", SearchOption.AllDirectories);
                Dictionary<string, string> targetPaths = new Dictionary<string, string>(files.Length);
                for (int i = 0; i < files.Length; ++i)
                {
                    var name = files[i].Name;
                    var path = files[i].FullName.Replace('\\', '/');
                    path = "Assets" + path.Replace(Application.dataPath, "");
                    targetPaths.Add(name, path);
                }

                DirectoryInfo directionOri = new DirectoryInfo(_originPath);
                FileInfo[] filesOri = directionOri.GetFiles("*.prefab", SearchOption.AllDirectories);
                Dictionary<string, string> oriPaths = new Dictionary<string, string>(filesOri.Length);
                for (int i = 0; i < filesOri.Length; ++i)
                {
                    var name = filesOri[i].Name;
                    var path = filesOri[i].FullName.Replace('\\', '/');
                    path = "Assets" + path.Replace(Application.dataPath, "");
                    oriPaths.Add(name, path);
                }

                List<string> notChangeUIs = new List<string>(200);
                var iter = targetPaths.GetEnumerator();
                try
                {
                    int index = 0;
                    while (iter.MoveNext())
                    {
                        EditorUtility.DisplayProgressBar("当前进度", string.Format("{0}/{1}", index, targetPaths.Count), (float)index / targetPaths.Count);
                        ++index;
                        string oriFile = string.Empty;
                        if (!oriPaths.TryGetValue(iter.Current.Key, out oriFile))
                        {
                            notChangeUIs.Add(iter.Current.Key);
                            continue;
                        }
                        var targetGo = AssetDatabase.LoadAssetAtPath<GameObject>(iter.Current.Value);
                        var oriGo = AssetDatabase.LoadAssetAtPath<GameObject>(oriFile);
                        if (CompareUIGameObject(targetGo, oriGo))
                        {
                            var targetPath = Application.dataPath.Replace("Assets", "") + iter.Current.Value;
                            var oriPath = Application.dataPath.Replace("Assets", "") + oriFile;
                            File.Copy(oriPath, targetPath, true);
                        }
                        else
                        {
                            notChangeUIs.Add(iter.Current.Key);
                        }
                    }
                    EditorUtility.ClearProgressBar();
                    AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);

                    //没有修改的UI写出到文件
                    NormalExcelInfo excelInfo = new NormalExcelInfo();
                    excelInfo.Name = "UIList";
                    excelInfo.Values = new string[notChangeUIs.Count, 1];
                    for (int i = 0; i < notChangeUIs.Count; ++i)
                    {
                        excelInfo.Values[i, 0] = notChangeUIs[i];
                    }
                    ExcelWriter.Write(_writePath + "/NotCopyedUIList.xlsx", excelInfo);
                }
                finally
                {
                    iter.Dispose();
                }
            }
            EditorGUILayout.EndVertical();
        }

        //true表示UI已经修改，需要保持，false表示没有做修改
        bool CompareUIGameObject(GameObject target, GameObject ori)
        {
            return CompareTree(target, ori);
        }

        //对比树状结构
        bool CompareTree(GameObject target, GameObject ori)
        {
            if (target.name != ori.name)
            {
                return false;
            }

            //对比脚本
            var targetScripts = target.GetComponents<MonoBehaviour>();
            var oriScripts = ori.GetComponents<MonoBehaviour>();
            if (targetScripts.Length != oriScripts.Length)
            {
                return false;
            }

            //对比子节点
            if (target.transform.childCount != ori.transform.childCount)
            {
                return false;
            }
            for (int i = 0; i < target.transform.childCount; ++i)
            {
                if (!CompareTree(target.transform.GetChild(i).gameObject, ori.transform.GetChild(i).gameObject))
                {
                    return false;
                }
            }
            return true;
        }
    }
}