class MockArraySessionStorage

class MockArraySessionStorage implements SessionStorageInterface {
    protected string $id = '';
    protected bool $started = false;
    protected bool $closed = false;
    protected array $data = [];
    protected MetadataBag $metadataBag;
    
    /**
     * @var SessionBagInterface[]
     */
    protected array $bags = [];
    public function __construct(string $name = 'MOCKSESSID', ?MetadataBag $metaBag = null) {
        $this->setMetadataBag($metaBag);
    }
    public function setSessionData(array $array) : void {
        $this->data = $array;
    }
    public function start() : bool {
        if ($this->started) {
            return true;
        }
        if (!$this->id) {
            $this->id = $this->generateId();
        }
        $this->loadSession();
        return true;
    }
    public function regenerate(bool $destroy = false, ?int $lifetime = null) : bool {
        if (!$this->started) {
            $this->start();
        }
        $this->metadataBag
            ->stampNew($lifetime);
        $this->id = $this->generateId();
        return true;
    }
    public function getId() : string {
        return $this->id;
    }
    public function setId(string $id) : void {
        if ($this->started) {
            throw new \LogicException('Cannot set session ID after the session has started.');
        }
        $this->id = $id;
    }
    public function getName() : string {
        return $this->name;
    }
    public function setName(string $name) : void {
        $this->name = $name;
    }
    public function save() : void {
        if (!$this->started || $this->closed) {
            throw new \RuntimeException('Trying to save a session that was not started yet or was already closed.');
        }
        // nothing to do since we don't persist the session data
        $this->closed = false;
        $this->started = false;
    }
    public function clear() : void {
        // clear out the bags
        foreach ($this->bags as $bag) {
            $bag->clear();
        }
        // clear out the session
        $this->data = [];
        // reconnect the bags to the session
        $this->loadSession();
    }
    public function registerBag(SessionBagInterface $bag) : void {
        $this->bags[$bag->getName()] = $bag;
    }
    public function getBag(string $name) : SessionBagInterface {
        if (!isset($this->bags[$name])) {
            throw new \InvalidArgumentException(\sprintf('The SessionBagInterface "%s" is not registered.', $name));
        }
        if (!$this->started) {
            $this->start();
        }
        return $this->bags[$name];
    }
    public function isStarted() : bool {
        return $this->started;
    }
    public function setMetadataBag(?MetadataBag $bag) : void {
        $this->metadataBag = $bag ?? new MetadataBag();
    }
    
    /**
     * Gets the MetadataBag.
     */
    public function getMetadataBag() : MetadataBag {
        return $this->metadataBag;
    }
    
    /**
     * Generates a session ID.
     *
     * This doesn't need to be particularly cryptographically secure since this is just
     * a mock.
     */
    protected function generateId() : string {
        return bin2hex(random_bytes(16));
    }
    protected function loadSession() : void {
        $bags = array_merge($this->bags, [
            $this->metadataBag,
        ]);
        foreach ($bags as $bag) {
            $key = $bag->getStorageKey();
            $this->data[$key] ??= [];
            $bag->initialize($this->data[$key]);
        }
        $this->started = true;
        $this->closed = false;
    }

}