package main

import (
	"fmt"
	"strconv"

	"github.com/mjensen/weimar/internal/config"
	"github.com/mjensen/weimar/internal/db"
	"github.com/mjensen/weimar/internal/storage"
	"github.com/spf13/cobra"
)

var imageCmd = &cobra.Command{
	Use:   "image",
	Short: "Manage images",
}

var imageDeleteCmd = &cobra.Command{
	Use:   "delete <id>",
	Short: "Delete an image by ID",
	Args:  cobra.ExactArgs(1),
	RunE: func(cmd *cobra.Command, args []string) error {
		id, err := strconv.ParseInt(args[0], 10, 64)
		if err != nil {
			return fmt.Errorf("invalid image ID: %w", err)
		}

		cfg := config.FromViper()
		database, err := db.Open(cfg.Database.Path)
		if err != nil {
			return fmt.Errorf("opening database: %w", err)
		}
		defer database.Close()

		img, err := database.GetImageByID(cmd.Context(), id)
		if err != nil {
			return fmt.Errorf("looking up image: %w", err)
		}

		st, err := storage.New(cfg.Storage.Path)
		if err != nil {
			return fmt.Errorf("opening storage: %w", err)
		}

		// Delete thumbnail first if it exists.
		if img.ThumbnailPath != nil {
			if err := st.Delete(*img.ThumbnailPath); err != nil {
				return fmt.Errorf("deleting thumbnail: %w", err)
			}
		}

		// Delete original file.
		if err := st.Delete(img.StoragePath); err != nil {
			return fmt.Errorf("deleting file: %w", err)
		}

		// Delete database record.
		if err := database.DeleteImage(cmd.Context(), id); err != nil {
			return fmt.Errorf("deleting image record: %w", err)
		}

		fmt.Fprintf(cmd.OutOrStdout(), "deleted image %d: %s\n", img.ID, img.Filename)
		return nil
	},
}

func init() {
	rootCmd.AddCommand(imageCmd)
	imageCmd.AddCommand(imageDeleteCmd)
}