package cmd

import (
	"fmt"
	"log"

	"github.com/david/knox/internal/db"
	"github.com/david/knox/internal/ingest"
	"github.com/spf13/cobra"
)

func NewGitCmd(kdb *db.KnoxDB) *cobra.Command {
	var roots []string
	var recursive bool
	cmd := &cobra.Command{
		Args:  cobra.NoArgs,
		Use:   "git",
		Short: "Ingest local git repository status into the knowledge index",
		Long: `Scans git repos under one or more root dirs (default ~/src) and records
each project's status — branch, clean/dirty, ahead/behind, HEAD, last commit.
With --recursive (default) repos are found at any depth, following symlinked
directories, so nested repos like ~/assistant/kitmaker are picked up. Use
'knox git' for a one-shot ingest, or rely on the watch daemon's git timer.`,
		RunE: func(c *cobra.Command, args []string) error {
			ing := &ingest.GitIngester{Roots: roots, Recursive: recursive}
			log.Printf("[knox] ingesting git repo status...")

			results, err := ing.IngestAll()
			if err != nil {
				return fmt.Errorf("git ingest: %w", err)
			}

			if len(results) == 0 {
				fmt.Println("No git repos found.")
				return nil
			}

			ingest.SortResults(results)
			var newCount int
			for _, result := range results {
				_, isNew, err := kdb.RecordObservation(db.ObservationRecord{
					Fingerprint:     result.Fingerprint,
					SourceID:        result.SourceID,
					SourcePath:      result.SourcePath,
					Project:         result.Project,
					ContentType:     result.ContentType,
					Title:           result.Title,
					Summary:         result.Summary,
					CreatedAt:       result.CreatedAt,
					Confidence:      result.Confidence,
					IngesterVersion: result.IngesterVersion,
					Trigger:         "git_ingest",
					Provenance:      ingest.ProvenanceJSON(result.Provenance),
				})
				if err != nil {
					log.Printf("[knox] db error: %v", err)
					continue
				}
				if isNew {
					newCount++
				}
				fmt.Printf("%-24s %s\n", result.Project, result.Summary)
			}
			fmt.Printf("\nGit: %d repos (%d new)\n", len(results), newCount)
			return nil
		},
	}
	cmd.Flags().StringSliceVarP(&roots, "root", "r", nil, "Directories to scan for git repos (default ~/src; repeat or comma-separate for multiple roots)")
	cmd.Flags().BoolVar(&recursive, "recursive", true, "Recurse into subdirectories (following symlinks) to find nested git repos")
	return cmd
}