<?php

declare(strict_types=1);

namespace App\Auth;

/**
 * Process-local {@see ThrottleStore}. State is held in a private array;
 * lost when the worker (or process) exits. Used by unit tests and as the
 * default for environments that don't need cross-worker persistence.
 */
final class InMemoryThrottleStore implements ThrottleStore
{
    /**
     * @var array{
     *     ip: array<string, array{count: int, lockedUntil: int}>,
     *     username: array<string, array{count: int, lockedUntil: int}>
     * }
     */
    private array $state = ['ip' => [], 'username' => []];

    public function load(): array
    {
        return $this->state;
    }

    public function mutate(callable $fn): void
    {
        $this->state = $fn($this->state);
    }

    public function reset(): void
    {
        $this->state = ['ip' => [], 'username' => []];
    }
}