using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using UnityEditor;
using UnityEngine;

public class ReplaceFile
{
    static string selectFolderPath;
    [MenuItem("Tool/ReplaceFile")]
    public static void Start()
    {
        selectFolderPath = SelectFolder();
        if (!string.IsNullOrEmpty(selectFolderPath))
        {
            if (Application.platform == RuntimePlatform.OSXEditor)
            {
                Debug.LogError("目标：" + selectFolderPath);
            }
            else
            {
                Debug.LogError("目标：" + selectFolderPath);
                GetList();
            }
        }
        else
            Debug.LogError("未选择路径");
    }

    public static void GetList()
    {
        Debug.LogError(selectFolderPath);
        DirectoryInfo folder = new DirectoryInfo(selectFolderPath);
        DirectoryInfo[] infos = folder.GetDirectories();
        for (int i = 0; i < infos.Length; i++)
        {
            EditorUtility.DisplayProgressBar("获取图片", "获取图片中:" + (float)i + "/" + infos.Length, (float)i / infos.Length);
            //每个文件夹路径
            string path = selectFolderPath + "\\" + infos[i].Name;
            if (Directory.Exists(path))
            {
                DirectoryInfo direction = new DirectoryInfo(path);
                FileInfo[] files = direction.GetFiles("*", SearchOption.AllDirectories);
                for (int j = 0; j < files.Length; j++)
                {
                    if (files[j].Name.EndsWith(".meta"))
                    {
                        continue;
                    }
                    string[] type = files[j].Name.Split('.');
                    if (type.Length == 2)
                    {
                        if (type[1] == "img" | type[1] == "jpg")
                        {
                            Debug.Log(files[j].Name);
                            Replace(files[j].Name, path + "//" + files[j].Name);
                        }
                    }
                }
            }
        }
        EditorUtility.ClearProgressBar();
    }

    public static void Replace(string name, string srcPath)
    {
        string allFolderPath = Application.dataPath + "\\Resources";
        DirectoryInfo folder = new DirectoryInfo(allFolderPath);
        DirectoryInfo[] infos = folder.GetDirectories();

        for (int i = 0; i < infos.Length; i++)
        {
            //每个文件夹路径
            string path = allFolderPath + "\\" + infos[i].Name;
            Debug.Log(path);
            if (Directory.Exists(path))
            {
                DirectoryInfo direction = new DirectoryInfo(path);
                FileInfo[] files = direction.GetFiles("*", SearchOption.AllDirectories);
                for (int j = 0; j < files.Length; j++)
                {
                    if (files[j].Name.EndsWith(".meta"))
                    {
                        continue;
                    }
                    Debug.Log(files[j].Name);
                    if (files[j].Name == name)
                    {
                        File.Copy(srcPath, path + "//" + files[j].Name, true);
                        return;
                    }
                }
            }
        }
    }

    /// <summary>
    /// 选择文件夹
    /// </summary>
    /// <returns>目标路径</returns>
    private static string SelectFolder()
    {
        string path = EditorUtility.OpenFolderPanel("选择目标路径", System.Environment.CurrentDirectory, "");
        return path;
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    public class OpenDialogFile
    {
        public int structSize = 0;
        public IntPtr dlgOwner = IntPtr.Zero;
        public IntPtr instance = IntPtr.Zero;
        public String filter = null;
        public String customFilter = null;
        public int maxCustFilter = 0;
        public int filterIndex = 0;
        public String file = null;
        public int maxFile = 0;
        public String fileTitle = null;
        public int maxFileTitle = 0;
        public String initialDir = null;
        public String title = null;
        public int flags = 0;
        public short fileOffset = 0;
        public short fileExtension = 0;
        public String defExt = null;
        public IntPtr custData = IntPtr.Zero;
        public IntPtr hook = IntPtr.Zero;
        public String templateName = null;
        public IntPtr reservedPtr = IntPtr.Zero;
        public int reservedInt = 0;
        public int flagsEx = 0;
    }
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    public class OpenDialogDir
    {
        public IntPtr hwndOwner = IntPtr.Zero;
        public IntPtr pidlRoot = IntPtr.Zero;
        public String pszDisplayName = null;
        public String lpszTitle = null;
        public UInt32 ulFlags = 0;
        public IntPtr lpfn = IntPtr.Zero;
        public IntPtr lParam = IntPtr.Zero;
        public int iImage = 0;
    }
    public class DllOpenFileDialog
    {
        [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern bool GetOpenFileName([In, Out] OpenDialogFile ofn);

        [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern bool GetSaveFileName([In, Out] OpenDialogFile ofn);

        [DllImport("shell32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern IntPtr SHBrowseForFolder([In, Out] OpenDialogDir ofn);

        [DllImport("shell32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern bool SHGetPathFromIDList([In] IntPtr pidl, [In, Out] char[] fileName);

    }
    public class MessageBoxTip
    {
        [DllImport("User32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern int MessageBox(IntPtr handle, String message, String title, int type);
    }
}