<?php

namespace App\Console\Commands;

use App\Services\SchoolmateEnrollmentService;
use Illuminate\Console\Command;

class AutoSchoolmate extends Command
{
    protected $signature = 'auto_schoolmate';

    protected $description = '自动核验校友资格，补齐符合条件的学员并取消失去资格的校友';

    public function handle(SchoolmateEnrollmentService $service)
    {
        $courses = $service->automaticCourses();
        $added = 0;
        $removed = 0;
        $reconcile = function ($users) use ($service, $courses, &$added, &$removed) {
            foreach ($users as $user) {
                $change = $service->reconcile($user->id, $courses);
                $added += (int) ($change === 1);
                $removed += (int) ($change === -1);
            }
        };

        $service->pendingUsers($courses)->chunkById(200, $reconcile, 'users.id', 'id');
        $service->ineligibleSchoolmates($courses)->chunkById(200, $reconcile, 'users.id', 'id');

        $this->info("校友资格核验完成，新增 {$added} 人，取消 {$removed} 人。");
        return 0;
    }
}