// Package appbackup holds the self-contained app-data backup primitives:
// database dump and Docker-volume archive discovery/execution, plus the
// keep-side storage path helpers. It depends only on stable abstractions
// (the StackDataProvider interface) and has no dependency on the restic,
// cross-drive, or drive-mount code in the backup package.
package appbackup

import "path/filepath"

// FelhomDataDir is the namespace directory on storage drives for all felhom-managed data.
const FelhomDataDir = "felhom-data"

// PrimaryBackupPath returns the root primary backup directory for a drive.
func PrimaryBackupPath(drivePath string) string {
	return filepath.Join(drivePath, FelhomDataDir, "backups", "primary")
}

// AppDBDumpPath returns the DB dump directory for an app on its home drive.
func AppDBDumpPath(drivePath, stackName string) string {
	return filepath.Join(drivePath, FelhomDataDir, "backups", "primary", stackName, "db-dumps")
}

// AppVolumeDumpPath returns the directory for Docker volume dump tars on an app's home drive.
func AppVolumeDumpPath(drivePath, stackName string) string {
	return filepath.Join(drivePath, FelhomDataDir, "backups", "primary", stackName, "volume-dumps")
}

// AppDataDir returns the app data directory path on a drive.
func AppDataDir(drivePath, stackName string) string {
	return filepath.Join(drivePath, FelhomDataDir, "appdata", stackName)
}