package cmd

import (
	"fmt"
	"strings"

	"github.com/lerko/nib/internal/db"
	"github.com/lerko/nib/internal/display"
	"github.com/spf13/cobra"
)

var (
	cardsTag  string
	cardsType string
)

var cardsCmd = &cobra.Command{
	Use:   "cards",
	Short: "list crystallized cards by usage",
	RunE:  runCards,
}

func init() {
	cardsCmd.Flags().StringVar(&cardsTag, "tag", "", "filter by tag")
	cardsCmd.Flags().StringVar(&cardsType, "type", "", "filter by card type")
	rootCmd.AddCommand(cardsCmd)
}

func runCards(_ *cobra.Command, _ []string) error {
	store, err := openStore()
	if err != nil {
		return err
	}
	defer store.Close()

	p := db.DefaultListParams()
	p.CardsOnly = true
	p.Sort = "use_count"
	p.Order = "desc"

	if cardsTag != "" {
		p.Tag = &cardsTag
	}
	if cardsType != "" {
		if !db.ValidCardType(cardsType) {
			return fmt.Errorf("invalid_type — %q is not a valid card type", cardsType)
		}
		ct := db.CardType(cardsType)
		p.CardTypeFilter = &ct
	}

	entities, err := store.List(p)
	if err != nil {
		return err
	}

	for _, e := range entities {
		glyph := display.DisplayGlyph(e.Glyph, e.CardType)
		shortID := display.FormatID(e.ID)

		var tagStr string
		for _, tag := range e.Tags {
			tagStr += " #" + tag
		}

		label := e.Body
		if e.Title != nil {
			label = *e.Title
		}

		fmt.Printf("%s  %-40s %-16s %3d×  %s\n",
			glyph, label,
			strings.TrimSpace(tagStr),
			e.UseCount, shortID)
	}

	return nil
}