<?php
/**
 * Short-lived server capability cache.
 *
 * @package TwoUA_SEO_Release_Guard
 */

declare(strict_types=1);

namespace TwoUA\SeoReleaseGuard;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

final class RunCapabilityCache {
	private const TTL_SECONDS = 900;

	public function get(): ?RunCapabilities {
		$value = get_option( Options::RUN_CAPABILITIES, array() );
		if ( ! is_array( $value ) || ! $this->is_fresh( $value ) ) {
			return null;
		}

		$max_urls  = $value['max_urls'] ?? null;
		$manual    = $value['manual_runs_remaining'] ?? null;
		$automatic = $value['automatic_runs_enabled'] ?? null;
		$connected = $value['connected'] ?? null;
		$history   = $value['history_days'] ?? null;
		if ( ! is_int( $max_urls ) || ! is_int( $manual ) || ! is_bool( $automatic ) ) {
			return null;
		}
		if ( ! is_bool( $connected ) || ! is_int( $history ) ) {
			return null;
		}

		return new RunCapabilities( $max_urls, $manual, $automatic, new RunAccountAccess( $connected, $history ) );
	}

	public function store( RunCapabilities $capabilities ): void {
		update_option(
			Options::RUN_CAPABILITIES,
			array(
				'max_urls'               => $capabilities->max_urls,
				'manual_runs_remaining'  => $capabilities->manual_runs_remaining,
				'automatic_runs_enabled' => $capabilities->automatic_runs_enabled,
				'connected'              => $capabilities->account->connected,
				'history_days'           => $capabilities->account->history_days,
				'checked_at'             => time(),
			),
			false
		);
	}

	public function allows_automatic_collection(): bool {
		$capabilities = $this->get();

		return ! $capabilities instanceof RunCapabilities || $capabilities->automatic_runs_enabled;
	}

	/** @param array<string, mixed> $value WordPress option boundary value. */
	private function is_fresh( array $value ): bool {
		$checked_at = $value['checked_at'] ?? null;

		return is_int( $checked_at ) && time() - $checked_at < self::TTL_SECONDS;
	}
}