<?php
namespace AIAAS;

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

if (!class_exists(__NAMESPACE__ . '\Entitlements')) {
class Entitlements {
    public static function flush_plan_cache($user_id = 0): void {
        $user_id = (int) ($user_id ?: get_current_user_id());
        if ($user_id > 0) {
            delete_transient('aiaas_plan_' . $user_id);
        }
    }

    public static function is_hosted_instance(): bool {
        return false;
    }

    public static function get_user_plan($user_id = 0) {
        return 'FREE';
    }

    public static function get_plan_slug($user_id = 0): string {
        return 'free';
    }

    public static function get_user_plan_tier($user_id = 0): string {
        return 'free';
    }

    public static function current_plan_label($user_id = 0): string {
        return 'FREE';
    }

    public static function has_feature($feature = '', $user_id = 0): bool {
        $feature = sanitize_key((string) $feature);
        if ($feature === '') {
            return false;
        }

        $disabled = [
            'advanced_formatting',
            'enhanced_diff',
            'language_ui',
            'series_management',
            'versioning',
        ];

        return !in_array($feature, $disabled, true);
    }
}
}