//go:build mage

package main

import (
	"errors"
	"fmt"
	"io/fs"
	"os"
)

const (
	dirModePerm fs.FileMode = 0o700

	configDir       string = "config"
	rootManagedDir  string = "managed"
	rootFilesDir    string = "files"
	rootTemplateDir string = "templates"
)

func ensureDirectory(path string) error {
	info, err := os.Stat(path)
	if err != nil {
		if errors.Is(err, os.ErrNotExist) {
			if err := os.Mkdir(path, dirModePerm); err != nil {
				return fmt.Errorf("unable to create the directory: %w", err)
			}

			return nil
		}

		return fmt.Errorf(
			"received an unexpected error after attempting to get the directory information: %w",
			err,
		)
	}

	if !info.IsDir() {
		return errors.New("the path exists but it is not a directory")
	}

	if info.Mode().Perm() != dirModePerm {
		if err := os.Chmod(path, dirModePerm); err != nil {
			return fmt.Errorf("unable to update the directory's mode to %d: %w", dirModePerm, err)
		}
	}

	return nil
}