package storage

import (
	"context"
	"fmt"
	"io"

	"github.com/youruser/base/internal/config"
)

// Storage defines the interface for file storage backends.
type Storage interface {
	Upload(ctx context.Context, key string, reader io.Reader, size int64, contentType string) error
	Delete(ctx context.Context, key string) error
	GetURL(ctx context.Context, key string) (string, error)
	Exists(ctx context.Context, key string) (bool, error)
}

// NewStorage creates the appropriate storage backend from config.
func NewStorage(cfg config.StorageConfig) (Storage, error) {
	switch cfg.Type {
	case "local":
		return NewLocalStorage(cfg.Local)
	case "oss":
		return NewOSSStorage(cfg.OSS)
	case "minio":
		return NewMinIOStorage(cfg.MinIO)
	default:
		return nil, fmt.Errorf("unsupported storage type: %s", cfg.Type)
	}
}