<?php

namespace App\Services;

use App\Events\BalanceUpdateBroadcast;

/**
 * 玩家私有频道实时广播。
 *
 * 对齐界面文档 §2.1：balance.update（频道 `player.{id}`）。
 * 注意：玩家私有频道广播与大厅公共频道分开管理。
 */
final class PlayerRealtimeBroadcaster
{
    /** `balance.update` —— 钱包余额变动 */
    public function notifyBalanceUpdate(
        int $playerId,
        string $currencyCode,
        int $balanceMinor,
        int $changeMinor,
        string $reason,
    ): void {
        if (! $this->driverSupportsRealtime()) {
            return;
        }

        broadcast(new BalanceUpdateBroadcast(
            $playerId,
            $currencyCode,
            $balanceMinor,
            $changeMinor,
            $reason,
            (int) floor(microtime(true) * 1000),
        ));
    }

    private function driverSupportsRealtime(): bool
    {
        $default = config('broadcasting.default');
        if ($default === null || $default === 'null') {
            return false;
        }

        $driver = config("broadcasting.connections.{$default}.driver") ?? $default;

        return ! in_array($driver, ['null', 'log'], true);
    }
}