<?php
require __DIR__ . '/operations.php';
$opts=getopt('', ['backup:', 'plans:', 'group:', 'help']);
if (isset($opts['help'])) { echo "--backup=DIR [--plans=ID,ID] [--group=ID]; no implicit plan IDs\n"; exit; }
try {
    $dir=$opts['backup'] ?? throw new RuntimeException('Missing --backup');
    $ids=isset($opts['plans']) ? DplOnboarding\ids($opts['plans']) : [];
    $group=null;
    if (isset($opts['group'])) {
        $groups=DplOnboarding\ids($opts['group']);
        if (count($groups)!==1) throw new RuntimeException('One group required');
        $group=$groups[0];
    }
    $m=DplOnboarding\manifest($dir);
    DplOnboarding\boot();
    $node=App\Models\Server::findOrFail($m['node_id']);
    $qa=App\Models\User::findOrFail($m['test_user_id']);
    if ((int)$node->machine_id!==$m['machine_id']) throw new RuntimeException('Manifest machine mismatch');
    $plans=App\Models\Plan::whereIn('id',$ids)->orderBy('id')->get(['id','group_id']);
    if ($plans->count()!==count($ids)) throw new RuntimeException('Some selected plans missing');
    if ($group!==null) App\Models\ServerGroup::findOrFail($group);
    $result=[
        'node_id'=>$node->id, 'name'=>$node->name, 'is_online'=>(bool)$node->is_online,
        'last_check_at'=>$node->last_check_at, 'last_push_at'=>$node->last_push_at,
        'group_ids'=>$node->group_ids, 'qa_upload'=>(int)$qa->u, 'qa_download'=>(int)$qa->d,
        'qa_banned'=>(bool)$qa->banned, 'selected_plan_ids'=>$ids, 'plans'=>$plans->toArray(),
        'existing_users_with_selected_plan_and_null_group'=>$ids ? App\Models\User::whereIn('plan_id',$ids)->whereNull('group_id')->count() : null,
        'selected_plans_in_other_group'=>$group===null ? null : $plans->filter(fn($p) => $p->group_id!==null && (int)$p->group_id!==$group)->pluck('id')->all(),
        'scope'=>'Read-only snapshot; not subscription/traffic/GUI acceptance',
    ];
    echo json_encode($result,JSON_THROW_ON_ERROR|JSON_UNESCAPED_UNICODE).PHP_EOL;
} catch (Throwable $e) { fwrite(STDERR,"Readiness failed; verify parameters and manifest.\n"); exit(1); }