<?php

declare(strict_types=1);

namespace LIT\MCP\Integrations\FastestCache;

use LIT\MCP\Admin\CompatibilityTab;
use LIT\MCP\ChangeLog\ChangeLog;
use LIT\MCP\Compatibility\ProvidesCompatibility;
use LIT\MCP\Integrations\Bootable;
use LIT\MCP\Integrations\Integration;

defined('ABSPATH') || exit;

/**
 * WP Fastest Cache: the compatibility profile (FastestCacheListener purges after writes, wired by Plugin), the
 * cleanup of probe pages a dead check left behind and the tool lit/cache-clear – a tool group only while WP Fastest
 * Cache is loaded.
 */
final class FastestCacheIntegration implements Integration, ProvidesCompatibility, Bootable
{
    /** @var callable(): bool */
    private $available;

    /** @param callable(): bool|null $available Whether WP Fastest Cache is loaded; null = WPFC_MAIN_PATH is defined. */
    public function __construct(
        ?callable $available,
        private FastestCachePurger $purger,
        private ChangeLog $log
    ) {
        $this->available = $available ?? static fn (): bool => defined('WPFC_MAIN_PATH');
    }

    public function boot(): void
    {
        add_action(CompatibilityTab::LOAD_ACTION, [$this, 'removeOrphans']);
    }

    /**
     * lit_mcp_compat_profile_load('wpfc'), before any output: deletes probe pages a dead check left behind
     * (FastestCacheProbe::removeOrphans()). A GET without nonce on purpose: only the plugin's own leftovers,
     * idempotent.
     */
    public function removeOrphans(string $profileId): void
    {
        if ($profileId === 'wpfc' && $this->isAvailable() && current_user_can('manage_options')) {
            FastestCacheProbe::removeOrphans();
        }
    }

    public function id(): string
    {
        return 'wpfc';
    }

    public function label(): string
    {
        return FastestCacheCompatibility::LABEL;
    }

    public function isAvailable(): bool
    {
        return ($this->available)();
    }

    public function abilities(): array
    {
        return [new CacheClearAbility($this->purger, $this->log)];
    }

    public function compatibilities(): array
    {
        return [FastestCacheCompatibility::profile()];
    }
}