package cmd

import (
	"fmt"
	"log"

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

func NewObsidianCmd(kdb *db.KnoxDB) *cobra.Command {
	var vault string
	cmd := &cobra.Command{
		Use:   "obsidian",
		Short: "Ingest Obsidian notes into the knowledge index",
		Long: `Scans an Obsidian vault for markdown notes, extracts frontmatter
(title, tags, dates), and fingerprints them into the index.

Auto-detects vault path from ~/.config/obsidian/obsidian.json
or override with --vault.`,
		RunE: func(c *cobra.Command, args []string) error {
			ing := ingest.NewObsidianIngester(vault)
			log.Printf("[knox] ingesting Obsidian notes...")

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

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

			var newCount, dupCount 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,
					LineStart:       result.LineStart,
					LineEnd:         result.LineEnd,
					Confidence:      result.Confidence,
					IngesterVersion: result.IngesterVersion,
					Trigger:         "obsidian_ingest",
					Provenance:      ingest.ProvenanceJSON(result.Provenance),
				})
				if err != nil {
					log.Printf("[knox] db error: %v", err)
					continue
				}
				if isNew {
					newCount++
				} else {
					dupCount++
				}
			}

			fmt.Printf("Obsidian notes: %d new, %d updated\n", newCount, dupCount)
			return nil
		},
	}
	cmd.Flags().StringVarP(&vault, "vault", "v", "", "Obsidian vault path (auto-detect if empty)")
	return cmd
}