package db

import (
	"errors"
	"fmt"
	"os"

	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/cmd/utils"
	"git.faercol.me/faercol/polyculeconnect/polyculeconnect/config"
	"github.com/spf13/cobra"
)

// destroyCmd represents the db destroy command
var destroyCmd = &cobra.Command{
	Use:   "destroy",
	Short: "Completely delete the current database",
	Long:  `Delete the current database.`,
	Run: func(cmd *cobra.Command, args []string) {
		conf := utils.InitConfig("")
		if err := deleteDB(conf); err != nil {
			utils.Failf("Failed to connect to DB: %s", err.Error())
		}
		fmt.Println("DB deleted")
	},
}

func deleteSqliteDB(path string) error {
	if err := os.Remove(path); err != nil {
		if errors.Is(err, os.ErrNotExist) { // if the file has already been deleted we don't want to fail here
			return nil
		}
		return fmt.Errorf("failed to delete SQLite file: %w", err)
	}
	return nil
}

func deleteDB(conf *config.AppConfig) error {
	switch conf.StorageType {
	case string(config.Memory):
		return errors.New("no DB to delete in memory mode")
	case string(config.SQLite):
		return deleteSqliteDB(conf.StorageConfig.File)
	default:
		return fmt.Errorf("unsupported storage type %q", conf.StorageType)
	}
}

func init() {
	dbCmd.AddCommand(destroyCmd)
}