package operaSystem

import (
	"encoding/base64"
	"os"
	"time"
)

func (fl *OperaSystem) ByteToBase64(b []byte) string {
	return base64.StdEncoding.EncodeToString(b)
}

// Base64ToByte base64 string to byte
// baseStr parameter is base64 string
func (fl *OperaSystem) Base64ToByte(baseStr string) ([]byte, error) {
	return base64.StdEncoding.DecodeString(string(baseStr))
}

// ByteToFile The byte array is converted into a file and landed
// The parameter b is the bate array filePath file path
func (fl *OperaSystem) ByteToFile(b []byte, filePath string) error {
	//Open file Create a file if there is no file
	file, err := os.OpenFile(filePath, os.O_RDWR|os.O_CREATE, os.ModePerm)
	if err != nil {
		return err
	}
	_, err = file.Write(b)
	if err != nil {
		return err
	}
	defer func(file *os.File) {
		err := file.Close()
		if err != nil {
			panic(err)
		}
	}(file)
	return nil
}

func (fl *OperaSystem) FileName(filePath string) string {
	fileInfo, err := os.Stat(filePath)
	if err == nil {
		return fileInfo.Name()
	}
	return ""
} // FileName

func (fl *OperaSystem) FileSize(filePath string) int64 {
	fileInfo, err := os.Stat(filePath)
	if err == nil {
		return fileInfo.Size()
	}
	return 0
}

func (fl *OperaSystem) FileModTime(filePath string) time.Time {
	fileInfo, err := os.Stat(filePath)
	if err == nil {
		return fileInfo.ModTime()
	}
	return time.Time{}
}

func (fl *OperaSystem) FileMode(filePath string) os.FileMode {
	fileInfo, err := os.Stat(filePath)
	if err == nil {
		return fileInfo.Mode()
	}
	return 0
}

func (fl *OperaSystem) IsDir(filePath string) bool {
	fileInfo, err := os.Stat(filePath)
	if err == nil {
		return fileInfo.IsDir()
	}
	return false
}