<?php

namespace App\Http\Controllers\Api\Admin\IpPool\Concerns;

use App\Models\IpPool;
use App\Models\ModuleNetwork;
use App\Services\IpPool\IpPoolDashboard;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\DB;

trait ReadsIpPoolUsage
{
    /**
     * Service IDs already tied to an IP — either directly via ip_pools.service_id,
     * or indirectly via a VM (module_vmware) sitting on that IP. Used by the admin
     * form to disable services that are already in use on another IP.
     */
    public function usedServices(): JsonResponse
    {
        $direct = IpPool::whereNotNull('service_id')
            ->select(['id as ip_pool_id', 'service_id']);

        $viaVm = DB::table('ip_pools as ip')
            ->join('module_ip_address as mia', function ($join) {
                $join->on('mia.ip', '=', 'ip.ip_address')
                    ->on('mia.module_network_id', '=', 'ip.module_network_id');
            })
            ->join('module_vmware as mv', 'mv.module_ip_address', '=', 'mia.id')
            ->whereNotNull('mv.service_id')
            ->select(['ip.id as ip_pool_id', 'mv.service_id']);

        $used = $direct->toBase()->union($viaVm)->get()->unique(fn ($row) => "{$row->service_id}-{$row->ip_pool_id}")->values();

        return response()->json(['error' => false, 'data' => $used]);
    }

    public function dashboard(IpPoolDashboard $dashboard): JsonResponse
    {
        return response()->json(['error' => false, 'data' => $dashboard->build()]);
    }

    public function networks(): JsonResponse
    {
        $networks = ModuleNetwork::select(['id', 'name', 'type', 'network', 'module_host_id'])
            ->with(['host:id,name,module_datacenter_id', 'host.datacenter:id,name'])
            ->orderBy('name')
            ->get();

        return response()->json(['error' => false, 'data' => $networks]);
    }
}