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package archive
import (
"fmt"
"os"
"path/filepath"
"time"
)
// Archiver moves the cards directory into a timestamped archive folder under
// the parent state directory. Implementations are typically injected at
// composition roots (cmd, GUI) so callers depend on this abstraction rather
// than package-level functions alone.
type Archiver interface {
ArchiveCards(cardsDir string) error
}
// DefaultArchiver implements Archiver using the local filesystem.
type DefaultArchiver struct{}
// ArchiveCards implements Archiver.
func (DefaultArchiver) ArchiveCards(cardsDir string) error {
return archiveCards(cardsDir)
}
// archiveCards moves the cards directory to an archive with timestamp.
func archiveCards(cardsDir string) error {
// Check if cards directory exists
if _, err := os.Stat(cardsDir); os.IsNotExist(err) {
return fmt.Errorf("cards directory does not exist: %s", cardsDir)
}
// Get parent directory and create archive path
parentDir := filepath.Dir(cardsDir)
archiveDir := filepath.Join(parentDir, "archive")
// Create archive directory if it doesn't exist
if err := os.MkdirAll(archiveDir, 0755); err != nil {
return fmt.Errorf("failed to create archive directory: %w", err)
}
// Generate timestamp
timestamp := time.Now().Format("20060102-150405")
archiveName := fmt.Sprintf("cards-%s", timestamp)
archivePath := filepath.Join(archiveDir, archiveName)
// Check if archive already exists (unlikely but possible)
if _, err := os.Stat(archivePath); err == nil {
// Add microseconds to make it unique
timestamp = time.Now().Format("20060102-150405.000000")
archiveName = fmt.Sprintf("cards-%s", timestamp)
archivePath = filepath.Join(archiveDir, archiveName)
}
// Rename cards directory to archive
if err := os.Rename(cardsDir, archivePath); err != nil {
return fmt.Errorf("failed to archive cards directory: %w", err)
}
fmt.Printf("Cards directory archived to: %s\n", archivePath)
return nil
}
// ArchiveCards archives cards using DefaultArchiver. It exists for call sites
// that do not use dependency injection (e.g. tests and legacy scripts).
func ArchiveCards(cardsDir string) error {
return (DefaultArchiver{}).ArchiveCards(cardsDir)
}
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