<?php

namespace App\Http\Controllers\Api\V1\Admin\Agent;

use App\Http\Controllers\Controller;
use App\Models\AgentNode;
use App\Services\Agent\AgentDelegationService;
use App\Support\AdminAgentNodeAccess;
use App\Support\AgentDelegationAuthorization;
use App\Support\ApiMessage;
use App\Support\ApiResponse;
use App\Lottery\ErrorCode;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

final class AgentNodeDelegationGrantIndexController extends Controller
{
    public function __invoke(
        Request $request,
        AgentNode $agent_node,
        AgentDelegationService $service,
    ): JsonResponse {
        $admin = $request->lotteryAdmin();
        abort_if($admin === null, 401);

        $denied = AdminAgentNodeAccess::denyUnlessNodeVisible($admin, $agent_node);
        if ($denied !== null) {
            return $denied;
        }

        if ($agent_node->isRoot()) {
            return ApiMessage::errorResponse(
                $request,
                'admin.agent_delegation_root_denied',
                ErrorCode::ValidationFailed->value,
                null,
                422,
            );
        }

        if (! AgentDelegationAuthorization::childIsManageableBy($admin, $agent_node)) {
            return ApiMessage::errorResponse(
                $request,
                'admin.agent_delegation_manage_denied',
                ErrorCode::AdminForbidden->value,
                null,
                403,
            );
        }

        return ApiResponse::success([
            'child_agent_id' => (int) $agent_node->id,
            'grants' => $service->listForChild($agent_node, $admin),
        ]);
    }
}