<?php

namespace KaraDAV;

use KD2\WebDAV\NextCloud as WebDAV_NextCloud;

class NextCloud extends WebDAV_NextCloud
{
	protected Users $users;

	public function __construct(Users $users)
	{
		$this->users = $users;
	}

	public function auth(?string $login, ?string $password): bool
	{
		$user = $this->users->appSessionLogin($login, $password);

		if (!$user) {
			return false;
		}

		$this->user = $user;

		return true;
	}

	public function getUserName(): ?string
	{
		return $this->users->current()->login ?? null;
	}

	public function setUserName(string $login): bool
	{
		$ok = $this->users->setCurrent($login);

		if ($ok) {
			$this->user  = $this->users->current();
		}

		return $ok;
	}

	public function getUserQuota(): array
	{
		return (array) $this->users->quota($this->users->current());
	}

	public function generateToken(): string
	{
		return sha1(random_bytes(16));
	}

	public function validateToken(string $token): ?array
	{
		$session = $this->users->appSessionValidateToken($token);

		if (!$session) {
			return null;
		}

		return ['login' => $session->user, 'password' => $session->password];
	}

	public function getLoginURL(?string $token): string
	{
		if ($token) {
			return sprintf('%slogin.php?nc=%s', WWW_URL, $token);
		}
		else {
			return sprintf('%slogin.php?nc=redirect', WWW_URL);
		}
	}

	public function getDirectDownloadSecret(string $uri, string $login): string
	{
		$user = $this->users->get($login);

		if (!$user) {
			throw new WebDAV_Exception('No user with that name', 401);
		}

		return hash('sha256', $uri . $user->login . $user->password);
	}
}