<?php

namespace App\Console\Commands;

use App\Models\User;
use Illuminate\Console\Command;

class FillTelegramAccounts extends Command
{
    protected $signature = 'users:fill-tg-account {--dry-run : 只打印，不写库}';
    protected $description = '给 from=-1（Telegram 进来）且没有 account 的用户补 account：tg + 随机数字，唯一';

    public function handle(): int
    {
        $dry = (bool)$this->option('dry-run');
        $count = 0;
        $query = User::query()->where('from', -1)
            ->where(fn ($q) => $q->whereNull('account')->orWhere('account', ''));

        // chunkById：更新后行会脱离筛选条件，普通 chunk 会跳页
        $query->select('id', 'member_id', 'account')->chunkById(500, function ($users) use ($dry, &$count) {
            foreach ($users as $user) {
                $account = User::generateTgAccount();
                if (!$dry) {
                    // 只在 account 仍为空时写入，避免覆盖并发产生的值
                    $updated = User::where('id', $user->id)
                        ->where(fn ($q) => $q->whereNull('account')->orWhere('account', ''))
                        ->update(['account' => $account]);
                    if (!$updated) continue;
                }
                $count++;
                $this->line("{$user->id} ({$user->member_id}): {$account}");
            }
        });

        $this->info(($dry ? '[dry-run] 将更新 ' : '已更新 ') . "{$count} 个用户");
        return self::SUCCESS;
    }
}