package storage

import (
	"errors"
	"log"
	"os"
	"path/filepath"
)

type Storage struct {
	path string
}

var (
	logger log.Logger = *log.Default()
)

func init() {
	logger.SetFlags(log.Llongfile | log.Ltime)
}

func (s *Storage) SetPath(path string) {
	s.path = path
}

func (s Storage) Read() ([]byte, error) {
	if len(s.path) == 0 {
		return nil, errors.New("path not set")
	}
	data, err := os.ReadFile(s.path)
	if err != nil {
		logger.Printf("unable to read %s (%s)", s.path, err.Error())
		return nil, err
	}
	return data, nil
}

func (s Storage) Write(data []byte) error {
	dir := filepath.Dir(s.path)
	_, err := os.Stat(dir)
	if err != nil {
		if os.IsNotExist(err) {
			err = os.MkdirAll(dir, 0644)
			if err != nil {
				logger.Printf("unable to create %s (%s)", dir, err.Error())
				return err
			}
		} else {
			logger.Print(err)
			return err
		}
	}
	err = os.WriteFile(s.path, data, 0644)
	if err != nil {
		logger.Printf("unable to store %s (%s)", s.path, err.Error())
	}
	return nil
}