package pkg

import (
	"crypto/rand"
	"os"
	"path/filepath"
	"time"
)

type File struct {
	filepath string
	file     *os.File

	isMoved bool
}

func CreateRandomTmpFile(dir string) (*File, error) {
	if err := os.MkdirAll(dir, 0750); err != nil {
		return nil, err
	}
	tmpFile := filepath.Join(dir, time.Now().Format(time.RFC3339)+"_"+rand.Text()+".tmp")
	file, err := os.Create(tmpFile)
	if err != nil {
		return nil, err
	}

	return &File{
		filepath: tmpFile,
		file:     file,
	}, nil
}

func (f *File) Write(p []byte) (n int, err error) {
	return f.file.Write(p)
}

func (f *File) Path() string {
	return f.filepath
}

func (f *File) Remove() error {
	if f.isMoved {
		return nil
	}

	return os.Remove(f.filepath)
}

func (f *File) Move(path string) error {
	return os.Rename(f.filepath, path)
}