267 lines
9.0 KiB
PHP
267 lines
9.0 KiB
PHP
<?php
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declare(strict_types=1);
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namespace app\common\service;
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use support\think\Db;
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use Throwable;
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/**
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* 开奖后结算注单：写入 win_amount、status=已结算；中奖时入账并记 user_wallet_record（biz_type=payout）。
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*/
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final class GameBetSettleService
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{
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private const BASE_ODDS = 33;
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/**
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* 对指定期次按开奖号码结算所有「待开奖」注单；同一注单幂等（仅 status=1 会更新）。
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*
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* @throws Throwable
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*/
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public static function settleBetsForDraw(int $recordId, int $resultNumber): void
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{
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if ($recordId <= 0 || $resultNumber < 1) {
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return;
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}
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$now = time();
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$bets = Db::name('bet_order')
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->where('period_id', $recordId)
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->where('status', 1)
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->order('id', 'asc')
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->select()
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->toArray();
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/** @var array<int, array{period_no: string, total_win: string, balance_after: string, orders: list<array{order_no: string, win_amount: string, hit: bool}>}> */
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$aggregateByUser = [];
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foreach ($bets as $bet) {
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$betId = (int) ($bet['id'] ?? 0);
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if ($betId <= 0) {
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continue;
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}
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$win = self::computeWinAmount($bet, $resultNumber);
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$jackpot = '0.0000';
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$affected = Db::name('bet_order')
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->where('id', $betId)
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->where('status', 1)
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->update([
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'win_amount' => $win,
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'jackpot_extra_amount' => $jackpot,
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'status' => 2,
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'update_time' => $now,
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]);
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if ($affected === 0) {
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continue;
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}
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// 结算刚刚成功（status 1 → 2）：把本单下注总额 1:1 累加到用户打码量
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self::creditUserBetFlow($bet, $now);
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$userId = (int) ($bet['user_id'] ?? 0);
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if ($userId <= 0) {
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continue;
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}
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$balanceAfter = (string) (Db::name('user')->where('id', $userId)->value('coin') ?? '0');
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if (bccomp($win, '0', 4) > 0) {
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$paid = self::creditUserPayout($bet, $betId, $win, $now);
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if ($paid !== null) {
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$balanceAfter = $paid;
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}
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}
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$periodNo = (string) ($bet['period_no'] ?? '');
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if (!isset($aggregateByUser[$userId])) {
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$aggregateByUser[$userId] = [
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'period_no' => $periodNo,
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'total_win' => '0.0000',
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'balance_after' => $balanceAfter,
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'orders' => [],
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];
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}
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$aggregateByUser[$userId]['total_win'] = bcadd($aggregateByUser[$userId]['total_win'], $win, 4);
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$aggregateByUser[$userId]['balance_after'] = $balanceAfter;
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$aggregateByUser[$userId]['orders'][] = [
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'order_no' => (string) $betId,
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'win_amount' => $win,
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'hit' => bccomp($win, '0', 4) > 0,
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];
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}
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foreach ($aggregateByUser as $userId => $agg) {
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$hitOrderCount = 0;
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foreach ($agg['orders'] as $o) {
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if (($o['hit'] ?? false) === true) {
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$hitOrderCount++;
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}
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}
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UserPushService::publish((int) $userId, UserPushService::EVT_BET_SETTLED, [
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'period_no' => $agg['period_no'],
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'result_number' => $resultNumber,
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'total_win_amount' => $agg['total_win'],
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'order_count' => count($agg['orders']),
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'hit_order_count' => $hitOrderCount,
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'balance_after' => $agg['balance_after'],
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]);
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if (bccomp($agg['total_win'], '0', 4) > 0) {
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UserPushService::publish((int) $userId, UserPushService::EVT_WALLET_CHANGED, [
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'reason' => 'payout',
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'ref_type' => 'game_period',
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'ref_id' => (string) $recordId,
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'delta' => $agg['total_win'],
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'balance_after' => $agg['balance_after'],
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]);
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}
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}
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}
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/**
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* 补偿：库中已结束局次但注单仍为待开奖的，可重复调用（幂等）。
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*/
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public static function settlePendingForEndedRecords(): int
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{
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$rows = Db::name('game_record')
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->where('status', 4)
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->whereNotNull('result_number')
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->field(['id', 'result_number'])
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->order('id', 'asc')
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->select()
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->toArray();
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$count = 0;
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foreach ($rows as $row) {
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$rid = (int) ($row['id'] ?? 0);
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$rn = (int) ($row['result_number'] ?? 0);
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if ($rid <= 0 || $rn < 1) {
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continue;
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}
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$pending = Db::name('bet_order')
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->where('period_id', $rid)
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->where('status', 1)
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->count();
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if ($pending === 0) {
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continue;
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}
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Db::startTrans();
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try {
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self::settleBetsForDraw($rid, $rn);
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Db::commit();
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$count++;
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} catch (Throwable $e) {
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Db::rollback();
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throw $e;
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}
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}
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return $count;
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}
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/**
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* 应付派彩：开奖号码 ∈ pick_numbers 即中奖；整笔 total_amount × (连胜+1) × 33（与 GameLiveService 一致）。
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*/
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public static function computeWinAmount(array $bet, int $resultNumber): string
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{
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$pickNumbers = $bet['pick_numbers'] ?? null;
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if (is_string($pickNumbers)) {
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$decoded = json_decode($pickNumbers, true);
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$pickNumbers = is_array($decoded) ? $decoded : [];
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}
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if (!is_array($pickNumbers)) {
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$pickNumbers = [];
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}
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if (!in_array($resultNumber, array_map('intval', $pickNumbers), true)) {
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return '0.0000';
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}
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$total = (string) ($bet['total_amount'] ?? '0');
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$streak = (int) ($bet['streak_at_bet'] ?? 0);
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$odds = (string) (($streak + 1) * self::BASE_ODDS);
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return bcmul($total, $odds, 4);
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}
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/**
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* 累加玩家打码量（流水）：按本注单 total_amount 1:1 加到 user.bet_flow_coin。
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*
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* 幂等性由调用点保证：只有 bet_order 首次从 status=1 变更为 status=2（返回 $affected=1）
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* 时才会调用本方法，重复结算不会触发。
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*/
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private static function creditUserBetFlow(array $bet, int $now): void
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{
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$userId = isset($bet['user_id']) && is_numeric($bet['user_id']) ? intval($bet['user_id']) : 0;
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if ($userId <= 0) {
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return;
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}
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$totalRaw = $bet['total_amount'] ?? '0';
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$total = is_string($totalRaw) ? trim($totalRaw) : (is_numeric($totalRaw) ? strval($totalRaw) : '0');
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if ($total === '' || !is_numeric($total)) {
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return;
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}
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$flow = bcadd($total, '0', 4);
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if (bccomp($flow, '0', 4) <= 0) {
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return;
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}
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// 原子加法：避免读-改-写导致的并发覆盖；$flow 已由 bcadd 归一化为纯数字字符串，不存在 SQL 注入
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Db::name('user')
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->where('id', $userId)
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->update([
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'bet_flow_coin' => Db::raw('bet_flow_coin + ' . $flow),
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'update_time' => $now,
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]);
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}
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/**
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* @return string|null 派彩后余额；已幂等入账过时返回当前余额；失败或未执行派彩返回 null
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*/
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private static function creditUserPayout(array $bet, int $betId, string $winAmount, int $now): ?string
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{
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$userId = (int) ($bet['user_id'] ?? 0);
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if ($userId <= 0) {
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return null;
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}
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$idem = 'payout_bet_' . $betId;
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if (Db::name('user_wallet_record')->where('idempotency_key', $idem)->value('id')) {
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$coin = Db::name('user')->where('id', $userId)->value('coin');
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return (string) ($coin ?? '0');
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}
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$user = Db::name('user')->where('id', $userId)->find();
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if (!$user) {
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return null;
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}
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$before = (string) ($user['coin'] ?? '0');
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$after = bcadd($before, $winAmount, 4);
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Db::name('user_wallet_record')->insert([
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'user_id' => $userId,
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'channel_id' => $bet['channel_id'] ?? null,
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'biz_type' => 'payout',
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'direction' => 1,
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'amount' => $winAmount,
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'balance_before' => $before,
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'balance_after' => $after,
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'ref_type' => 'bet_order',
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'ref_id' => $betId,
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'idempotency_key' => $idem,
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'operator_admin_id' => null,
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'remark' => '压注派彩',
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'create_time' => $now,
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]);
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Db::name('user')->where('id', $userId)->update([
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'coin' => $after,
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'update_time' => $now,
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]);
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return $after;
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}
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}
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