<?php

/**
 * 文件功能：赛马结算广播事件
 *
 * 跑马结束後广播赛果（获胜马匹、赔付金额等）给房间所有用户，
 * 前端收到后展示结算面板并更新中奖信息。
 *
 * @author  ChatRoom Laravel
 *
 * @version 1.0.0
 */

namespace App\Events;

use App\Models\HorseRace;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;

class HorseRaceSettled implements ShouldBroadcastNow
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    /**
     * @param  HorseRace  $race  已结算的场次
     */
    public function __construct(
        public readonly HorseRace $race,
    ) {}

    /**
     * 广播至房间公共频道。
     *
     * @return array<\Illuminate\Broadcasting\Channel>
     */
    public function broadcastOn(): array
    {
        return [new PresenceChannel('room.1')];
    }

    /**
     * 广播事件名（前端监听 .horse.settled）。
     */
    public function broadcastAs(): string
    {
        return 'horse.settled';
    }

    /**
     * 广播数据。
     *
     * @return array<string, mixed>
     */
    public function broadcastWith(): array
    {
        // 找出获胜马匹的名称
        $horses = $this->race->horses ?? [];
        $winnerName = '未知';
        foreach ($horses as $horse) {
            if (($horse['id'] ?? 0) === $this->race->winner_horse_id) {
                $winnerName = ($horse['emoji'] ?? '').' '.($horse['name'] ?? '');
                break;
            }
        }

        return [
            'race_id' => $this->race->id,
            'winner_horse_id' => $this->race->winner_horse_id,
            'winner_name' => $winnerName,
            'total_pool' => $this->race->total_pool,
            'settled_at' => $this->race->settled_at?->toIso8601String(),
        ];
    }
}