package storage

import "io"
import "os"
import "path/filepath"

type FileStore struct {
	BaseDir string
}

func (fs FileStore) Ensure() error {
	return os.MkdirAll(fs.BaseDir, 0o755)
}

func (fs FileStore) Save(name string, r io.Reader) (string, int64, error) {
	var err error
	var file *os.File
	var path string
	var n int64
	err = fs.Ensure()
	if err != nil {
		return "", 0, err
	}
	path = filepath.Join(fs.BaseDir, name)
	file, err = os.Create(path)
	if err != nil {
		return "", 0, err
	}
	defer file.Close()
	n, err = io.Copy(file, r)
	return path, n, err
}

func (fs FileStore) Open(path string) (*os.File, error) {
	return os.Open(path)
}