package fs

import (
	"os"
	"path"
	"sort"
)

func LsD(d string) ([]string, error) {
	return ls(d, true)
}

func LsF(d string) ([]string, error) {
	return ls(d, false)
}

func ls(d string, dirs bool) ([]string, error) {
	entries, err := os.ReadDir(d)

	results := make([]string, 0, len(entries))
	for i := range entries {
		if dirs == entries[i].IsDir() {
			results = append(results, path.Join(d, entries[i].Name()))
		}
	}
	sort.Strings(results)

	return results, err
}