package fs

import (
	"os"
	"path/filepath"
	"reflect"
	"strings"
)

func Move(src string, dst string) (err error) {
	if dst == "" {
		return nil
	}
	src, err = filepath.Abs(src)
	if err != nil {
		return err
	}
	dst, err = filepath.Abs(dst)
	if err != nil {
		return err
	}
	revoke := false
	dir := filepath.Dir(dst)
Redirect:
	_, err = os.Stat(dir)
	if err != nil {
		err = os.MkdirAll(dir, 0o755)
		if err != nil {
			return err
		}
		if !revoke {
			revoke = true
			goto Redirect
		}
	}
	return os.Rename(src, dst)
}

func Delete(filePath string) error {
	return os.RemoveAll(filePath)
}

func TrimSpace(target interface{}) {
	t := reflect.TypeOf(target)
	if t.Kind() != reflect.Ptr {
		return
	}
	t = t.Elem()
	v := reflect.ValueOf(target).Elem()
	for i := 0; i < t.NumField(); i++ {
		switch v.Field(i).Kind() {
		case reflect.String:
			v.Field(i).SetString(strings.TrimSpace(v.Field(i).String()))
		}
	}
}

// FileExist 判断文件是否存在
func FileExist(path string) bool {
	fi, err := os.Lstat(path)
	if err == nil {
		return !fi.IsDir()
	}
	return !os.IsNotExist(err)
}