<?php

namespace App\Support;

final class AdminPermissionBridge
{
    /** @return array<string, list<string>> */
    public static function legacyMap(): array
    {
        /** @var array<string, list<string>> */
        return config('admin_permissions.legacy_map', []);
    }

    /** @return list<string> */
    public static function allLegacySlugs(): array
    {
        $keys = array_keys(self::legacyMap());
        sort($keys);

        return $keys;
    }

    /** @return list<string> */
    public static function menuActionCodesForLegacy(string $legacySlug): array
    {
        return array_values(array_unique(self::legacyMap()[$legacySlug] ?? []));
    }

    /**
     * 若管理员拥有的任意 menu_action.permission_code 落在某 `prd.*` 映射集合内，则视为拥有该 `prd.*`
     *（与路由中间件「满足其一」及 Next 侧栏 `requiredAny` 语义一致）。
     *
     * @param  list<string>  $menuActionCodes
     * @return list<string>
     */
    public static function legacySlugsGrantedByMenuActionCodes(array $menuActionCodes): array
    {
        if ($menuActionCodes === []) {
            return [];
        }

        $set = [];
        foreach ($menuActionCodes as $code) {
            if (is_string($code) && $code !== '') {
                $set[$code] = true;
            }
        }
        if ($set === []) {
            return [];
        }

        $out = [];
        foreach (self::legacyMap() as $legacySlug => $requiredCodes) {
            foreach ($requiredCodes as $code) {
                if (isset($set[$code])) {
                    $out[$legacySlug] = true;
                    break;
                }
            }
        }

        $keys = array_keys($out);
        sort($keys);

        return $keys;
    }
}