<?php

namespace App\Events;

use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;

/**
 * 界面文档 §2.1：`risk.sold_out` —— 号码赔付池耗尽推送。
 *
 * 触发时机：某号码的风险池额度被完全占用时。
 * 前端处理：该号码的玩法格子标记为售罄（置灰或禁用）。
 */
final class RiskSoldOutBroadcast implements ShouldBroadcastNow
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    /**
     * @param  int  $drawId  期号 ID
     * @param  string  $drawNo  期号编号（如 20260101-001）
     * @param  string  $normalizedNumber  标准化后的 4 位号码
     * @param  int  $emittedAtMs  发送时间戳（毫秒）
     */
    public function __construct(
        public readonly int $drawId,
        public readonly string $drawNo,
        public readonly string $normalizedNumber,
        public readonly int $emittedAtMs,
    ) {}

    /**
     * 公共频道，所有在大厅的玩家都能收到。
     *
     * @return array<int, Channel>
     */
    public function broadcastOn(): array
    {
        return [new Channel('lottery-hall')];
    }

    public function broadcastAs(): string
    {
        return 'risk.sold_out';
    }

    /**
     * @return array{draw_id: int, draw_no: string, normalized_number: string, emitted_at_ms: int}
     */
    public function broadcastWith(): array
    {
        return [
            'draw_id' => $this->drawId,
            'draw_no' => $this->drawNo,
            'normalized_number' => $this->normalizedNumber,
            'emitted_at_ms' => $this->emittedAtMs,
        ];
    }
}