package main

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

	p9 "github.com/Harvey-OS/ninep/protocol"

	"git.samanthony.xyz/buth/back/qver"
)

type UsersDir struct {
	path string
	*qver.Version
}

func NewUsersDir(path string, rootVer *qver.Version) (*UsersDir, error) {
	info, err := os.Stat(path)
	if errors.Is(err, fs.ErrNotExist) {
		if err := os.Mkdir(path, 0770); err != nil {
			return nil, err
		}
	} else if err != nil {
		return nil, err
	} else if !info.IsDir() {
		return nil, fmt.Errorf("%q is not a directory", path)
	}

	return &UsersDir{
		path,
		qver.New(qver.Parent(rootVer)),
	}, nil
}

func (dir *UsersDir) Close() {
	dir.Version.Close()
}

func (dir *UsersDir) Qid() (p9.QID, error) {
	ver, err := dir.Version.Get()
	if err != nil {
		return p9.QID{}, err
	}
	return p9.QID{
		Type:    p9.QTDIR,
		Version: ver,
		Path:    usersQidPath,
	}, nil
}