package utils

import (
	"fmt"
	"io"
	"os"
	"os/exec"
	"path/filepath"
)

type FileUtils struct{}

var File = &FileUtils{}

func (f *FileUtils) CopyDir(src, dst string) error {
	// 获取源文件夹信息
	srcInfo, err := os.Stat(src)
	if err != nil {
		return err
	}

	// 创建目标文件夹
	err = os.MkdirAll(dst, srcInfo.Mode())
	if err != nil {
		return err
	}

	// 读取源文件夹
	dir, err := os.ReadDir(src)
	if err != nil {
		return err
	}

	for _, file := range dir {
		srcFile := filepath.Join(src, file.Name())
		dstFile := filepath.Join(dst, file.Name())

		if file.IsDir() {
			// 递归复制子文件夹
			err = f.CopyDir(srcFile, dstFile)
			if err != nil {
				return err
			}
		} else {
			// 复制文件
			err = f.CopyFile(srcFile, dstFile)
			if err != nil {
				return err
			}
		}
	}

	return nil
}

func (f *FileUtils) CopyFile(src, dst string) error {
	srcFile, err := os.Open(src)
	if err != nil {
		return err
	}
	defer srcFile.Close()

	dstFile, err := os.Create(dst)
	if err != nil {
		return err
	}
	defer dstFile.Close()

	_, err = io.Copy(dstFile, srcFile)
	if err != nil {
		return err
	}
	return nil
}

func (*FileUtils) WinOpenFolder(folderPath string) error {
	cmd := exec.Command("explorer", folderPath)
	return cmd.Run()
	//fileInfo, err := os.Stat(folderPath)
	//if os.IsNotExist(err) {
	//	return err
	//}
	//var (
	//	dir = ""
	//	f   = ""
	//)
	//if fileInfo.IsDir() {
	//	dir = ""
	//	f = folderPath
	//} else {
	//	dir = filepath.Dir(folderPath)
	//	f = filepath.Base(folderPath)
	//}
	//_, err = Exec.Command(fmt.Sprintf("explorer %s", f), dir)
	//return err
}

func (*FileUtils) WinOpenFile(dir string, fileName string) error {
	_, err := Exec.Command(fmt.Sprintf("cmd /c start %s", fileName), dir)
	return err
}