<?php

declare(strict_types=1);

namespace KTXC\SystemStore;

use KTXC\Stores\TenantStore;
use KTXF\SystemStore\StoreReference;
use KTXF\SystemStore\SystemStoreException;

/**
 * Superuser-facing configuration operations for tenant logical stores.
 */
class SystemStoreConfigurationService
{
    public function __construct(private readonly TenantStore $tenants)
    {
    }

    /** @return array<string, StoreReference> */
    public function list(string $tenantId): array
    {
        $tenant = $this->tenants->fetch($tenantId);
        if ($tenant === null) {
            throw new SystemStoreException("Tenant '{$tenantId}' was not found");
        }

        return $tenant->getConfiguration()->stores()->all();
    }

    public function set(
        string $tenantId,
        string $name,
        string $provider,
        string|int $service,
        string $namespace,
    ): StoreReference {
        self::validateName($name);
        $reference = new StoreReference($provider, $service, $namespace);

        if (!$this->tenants->storeConfigurationStore($tenantId, $name, $reference->toArray())) {
            throw new SystemStoreException("Tenant '{$tenantId}' was not found");
        }

        return $reference;
    }

    public function remove(string $tenantId, string $name): bool
    {
        self::validateName($name);
        $removed = $this->tenants->removeConfigurationStore($tenantId, $name);
        if ($removed === null) {
            throw new SystemStoreException("Tenant '{$tenantId}' was not found");
        }

        return $removed;
    }

    private static function validateName(string $name): void
    {
        if (preg_match('/^[a-z][a-z0-9-]*$/', $name) !== 1) {
            throw new \InvalidArgumentException('Logical store names must use lowercase letters, numbers, and hyphens');
        }
    }
}