package cli

import (
	"github.com/spf13/cobra"
	"sneak.berlin/go/vaultik/internal/log"
	"sneak.berlin/go/vaultik/internal/vaultik"
)

// NewPruneCommand creates the prune command
func NewPruneCommand() *cobra.Command {
	opts := &vaultik.PruneOptions{}

	cmd := &cobra.Command{
		Use:   "prune",
		Short: "Tidy local database and remote storage",
		Long: `Removes orphaned data from both the local index database and
unreferenced blobs from the backup destination store.

Local cleanup drops incomplete snapshots and any files, chunks, or
blobs no longer referenced by a completed snapshot. Remote cleanup
scans every snapshot manifest in the destination store, builds the
set of still-referenced blob hashes, and deletes any blob not in that
set that is older than prune_grace_period (default 24h). A newer one
is kept: it may belong to a backup still running, on this host or
another sharing the destination store, that has not yet uploaded its
manifest. The grace period does not protect a blob such a backup
reuses from an earlier run that stopped before its manifest: that
blob keeps the time of its first upload, so it can be deleted.

Snapshot create --prune runs the same cleanup automatically; this
command is the manual entry point for the same work (e.g. after a
crashed backup or to reclaim storage). Snapshot remove leaves blobs in
place; run this command afterwards to delete the ones no longer
referenced.`,
		Args: cobra.NoArgs,
		RunE: func(cmd *cobra.Command, _ []string) error {
			// Use unified config resolution
			configPath, err := ResolveConfigPath()
			if err != nil {
				return err
			}

			// Use the app framework like other commands
			rootFlags := GetRootFlags()

			return RunOperation(cmd.Context(), AppOptions{
				ConfigPath: configPath,
				LogOptions: log.Options{
					Verbose: rootFlags.Verbose,
					Debug:   rootFlags.Debug,
					Quiet:   rootFlags.Quiet,
					JSON:    opts.JSON,
				},
				Mode: mutating,
			}, func(v *vaultik.Vaultik) error {
				return v.Prune(opts)
			}, func(err error) {
				log.Error("Prune operation failed", "error", err)
				ReportErrorf("Prune failed: %v", err)
			})
		},
	}

	cmd.Flags().BoolVar(&opts.Force, "force", false, "Skip confirmation prompt")
	cmd.Flags().BoolVar(&opts.JSON, "json", false,
		"Output pruning stats as JSON; skips the confirmation prompt, as --force does")

	return cmd
}