package storage

import (
	"fmt"
	"io"
	"os"
	"path/filepath"
	"time"
)

type LocalStorage struct {
	basePath string
	baseURL  string
}

func NewLocalStorage(basePath, baseURL string) (*LocalStorage, error) {
	if err := os.MkdirAll(basePath, 0755); err != nil {
		return nil, fmt.Errorf("failed to create storage directory: %w", err)
	}

	return &LocalStorage{
		basePath: basePath,
		baseURL:  baseURL,
	}, nil
}

func (s *LocalStorage) Upload(file io.Reader, filename string, category string) (string, error) {
	dir := filepath.Join(s.basePath, category)
	if err := os.MkdirAll(dir, 0755); err != nil {
		return "", fmt.Errorf("failed to create category directory: %w", err)
	}

	timestamp := time.Now().Format("20060102_150405")
	newFilename := fmt.Sprintf("%s_%s", timestamp, filename)
	filePath := filepath.Join(dir, newFilename)

	dst, err := os.Create(filePath)
	if err != nil {
		return "", fmt.Errorf("failed to create file: %w", err)
	}
	defer dst.Close()

	if _, err := io.Copy(dst, file); err != nil {
		return "", fmt.Errorf("failed to save file: %w", err)
	}

	url := fmt.Sprintf("%s/%s/%s", s.baseURL, category, newFilename)
	return url, nil
}

func (s *LocalStorage) Delete(url string) error {
	return nil
}

func (s *LocalStorage) GetURL(path string) string {
	return fmt.Sprintf("%s/%s", s.baseURL, path)
}