using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace mainProgram
{
    public partial class SaveAsWindow : Form
    {
        private string mSource;
        public SaveAsWindow(string source)
        {
            InitializeComponent();
            mSource = source;
        }

        private void SelectPathBtn_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog dialog = new FolderBrowserDialog();
            dialog.Description = "请选择文件夹";
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                if (string.IsNullOrEmpty(dialog.SelectedPath))
                {
                    MessageBox.Show(this, "文件夹路径不能为空", "提示");
                    return;
                }
                string savePath = dialog.SelectedPath;
               PathTextBox.Text = savePath;

            }
        }

        private void CancelBtn_Click(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.Cancel;
            Close();
        }

        private void OkBtn_Click(object sender, EventArgs e)
        {
            if (!Directory.Exists(PathTextBox.Text))
            {
                Directory.CreateDirectory(PathTextBox.Text);
            }

            CopySubFun(mSource, PathTextBox.Text, true);
            Close();
        }

        private void CopySubFun(string sourceName, string destFolderName, bool overwrite)//递归函数  
        {
            if (File.Exists(sourceName))//是文件,直接拷贝
            {
                string sourceFileName = Path.GetFileName(sourceName);//获取文件名
                File.Copy(sourceName, Path.Combine(destFolderName, sourceFileName), overwrite);
            }
            else if (Directory.Exists(sourceName))//是文件夹,拷贝文件夹;并递归
            {
                string[] sourceFolders = sourceName.Split('\\');
                string lastDirectory = sourceFolders[sourceFolders.Length - 1];
                string dest = Path.Combine(destFolderName, lastDirectory);
                Directory.CreateDirectory(dest);

                string[] sourceFilesPath = Directory.GetFileSystemEntries(sourceName);
                for (int i = 0; i < sourceFilesPath.Length; i++)
                {
                    string sourceFilePath = sourceFilesPath[i];

                    CopySubFun(sourceFilePath, dest, overwrite);
                }
            }
        }
    }
}