440 lines
16 KiB
PHP
440 lines
16 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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use Webman\Push\Api;
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final class GameLiveService
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{
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private const BASE_ODDS = 33;
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private const CHANNEL = 'game-live';
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private const EVENT = 'bet-updated';
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/** 与《36字花-移动端接口设计草案》7.1 对齐：公共对局频道 */
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private const CHANNEL_PUBLIC_GAME_PERIOD = 'public-game-period';
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private const EVT_PERIOD_TICK = 'period.tick';
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private const EVT_PERIOD_LOCKED = 'period.locked';
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private const EVT_PERIOD_OPENED = 'period.opened';
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private const KEY_PERIOD_SECONDS = 'period_seconds';
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private const KEY_BET_SECONDS = 'bet_seconds';
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private const KEY_PICK_MAX_NUMBER_COUNT = 'pick_max_number_count';
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/** 开奖结果号码池：1 至此上限（与单注可选号码个数配置无关） */
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private const DRAW_NUMBER_MAX = 36;
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public static function buildSnapshot(?int $recordId = null): array
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{
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$record = self::resolveRecord($recordId);
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if (!$record) {
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return [
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'record' => null,
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'bets' => [],
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'candidate_numbers' => [],
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'ai_default_number' => null,
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'calc_number' => null,
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'period_seconds' => self::getConfigInt(self::KEY_PERIOD_SECONDS, 30),
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'bet_seconds' => self::getConfigInt(self::KEY_BET_SECONDS, 20),
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'pick_max_number_count' => self::getPickMaxNumberCount(),
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'draw_number_max' => self::DRAW_NUMBER_MAX,
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'remaining_seconds' => 0,
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'bet_remaining_seconds' => 0,
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'can_calculate' => false,
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'can_draw' => false,
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'server_time' => time(),
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];
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}
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$periodSeconds = self::getConfigInt(self::KEY_PERIOD_SECONDS, 30);
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$betSeconds = self::getConfigInt(self::KEY_BET_SECONDS, 20);
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$pickMax = self::getPickMaxNumberCount();
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$elapsed = max(0, time() - (int) $record['period_start_at']);
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$remaining = max(0, $periodSeconds - $elapsed);
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$betRemaining = max(0, $betSeconds - $elapsed);
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$bets = Db::name('bet_order')
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->where('period_id', (int) $record['id'])
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->order('id', 'desc')
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->limit(200)
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->select()
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->toArray();
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$candidates = [];
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$bestNumber = null;
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$bestLoss = null;
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$bestNumbers = [];
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$status = (int) $record['status'];
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$canCalculate = $elapsed >= $betSeconds && ($status === 0 || $status === 1);
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if ($canCalculate) {
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for ($n = 1; $n <= self::DRAW_NUMBER_MAX; $n++) {
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$loss = self::estimateLossForNumber($bets, $n);
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$candidates[] = [
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'number' => $n,
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'estimated_loss' => $loss,
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];
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if ($bestLoss === null || bccomp((string) $loss, (string) $bestLoss, 4) < 0) {
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$bestLoss = $loss;
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$bestNumbers = [$n];
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continue;
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}
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if (bccomp((string) $loss, (string) $bestLoss, 4) === 0) {
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$bestNumbers[] = $n;
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}
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}
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$bestNumber = self::pickRandomNumber($bestNumbers);
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}
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return [
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'record' => $record,
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'bets' => array_map(static function (array $row): array {
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return [
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'id' => (int) $row['id'],
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'user_id' => (int) $row['user_id'],
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'period_no' => (string) $row['period_no'],
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'pick_numbers' => $row['pick_numbers'],
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'total_amount' => (string) $row['total_amount'],
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'streak_at_bet' => (int) $row['streak_at_bet'],
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'create_time' => (int) $row['create_time'],
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];
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}, $bets),
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'candidate_numbers' => $candidates,
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'ai_default_number' => $bestNumber,
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'calc_number' => $bestNumber,
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'period_seconds' => $periodSeconds,
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'bet_seconds' => $betSeconds,
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'pick_max_number_count' => $pickMax,
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'draw_number_max' => self::DRAW_NUMBER_MAX,
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'remaining_seconds' => $remaining,
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'bet_remaining_seconds' => $betRemaining,
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'can_calculate' => $canCalculate,
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'can_draw' => $canCalculate,
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'server_time' => time(),
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];
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}
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public static function calculateResult(?int $recordId, ?int $manualNumber = null): array
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{
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$record = self::resolveRecord($recordId);
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if (!$record) {
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return ['ok' => false, 'msg' => '未找到进行中的对局'];
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}
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if (!in_array((int) $record['status'], [0, 1], true)) {
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return ['ok' => false, 'msg' => '当前对局状态不可计算'];
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}
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$periodSeconds = self::getConfigInt(self::KEY_PERIOD_SECONDS, 30);
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$betSeconds = self::getConfigInt(self::KEY_BET_SECONDS, 20);
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$elapsed = max(0, time() - (int) $record['period_start_at']);
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if ($elapsed < $betSeconds) {
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return ['ok' => false, 'msg' => '下注开放时长未结束，暂不可计算'];
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}
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if ((int) $record['status'] === 0) {
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Db::name('game_record')->where('id', (int) $record['id'])->update([
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'status' => 1,
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'update_time' => time(),
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]);
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$record['status'] = 1;
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}
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$pickMax = self::getPickMaxNumberCount();
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if ($manualNumber !== null && ($manualNumber < 1 || $manualNumber > self::DRAW_NUMBER_MAX)) {
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return ['ok' => false, 'msg' => '手动开奖号码超出允许范围'];
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}
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$bets = Db::name('bet_order')->where('period_id', (int) $record['id'])->select()->toArray();
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$candidates = [];
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$bestNumber = null;
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$bestLoss = null;
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$bestNumbers = [];
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for ($n = 1; $n <= self::DRAW_NUMBER_MAX; $n++) {
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$loss = self::estimateLossForNumber($bets, $n);
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$candidates[] = ['number' => $n, 'estimated_loss' => $loss];
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if ($bestLoss === null || bccomp((string) $loss, (string) $bestLoss, 4) < 0) {
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$bestLoss = $loss;
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$bestNumbers = [$n];
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continue;
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}
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if (bccomp((string) $loss, (string) $bestLoss, 4) === 0) {
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$bestNumbers[] = $n;
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}
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}
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$bestNumber = self::pickRandomNumber($bestNumbers);
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$finalNumber = $manualNumber ?? $bestNumber;
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$finalLoss = '0.0000';
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if ($finalNumber !== null) {
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$finalLoss = self::estimateLossForNumber($bets, $finalNumber);
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}
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return [
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'ok' => true,
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'msg' => '计算完成',
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'record' => $record,
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'period_seconds' => $periodSeconds,
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'bet_seconds' => $betSeconds,
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'pick_max_number_count' => $pickMax,
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'draw_number_max' => self::DRAW_NUMBER_MAX,
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'candidate_numbers' => $candidates,
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'ai_default_number' => $bestNumber,
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'final_number' => $finalNumber,
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'final_estimated_loss' => $finalLoss,
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];
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}
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public static function drawResult(?int $recordId, ?int $manualNumber = null): array
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{
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$calc = self::calculateResult($recordId, $manualNumber);
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if (!($calc['ok'] ?? false)) {
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return $calc;
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}
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$record = $calc['record'];
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$finalNumber = (int) $calc['final_number'];
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$now = time();
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Db::startTrans();
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try {
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Db::name('game_record')->where('id', (int) $record['id'])->update([
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'status' => 4,
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'result_number' => $finalNumber,
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'draw_mode' => $manualNumber === null ? 0 : 1,
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'update_time' => $now,
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]);
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GameBetSettleService::settleBetsForDraw((int) $record['id'], $finalNumber);
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GameRecordService::createNextRecordAfterDraw();
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Db::commit();
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GameRecordStatService::refreshForRecordId((int) $record['id']);
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} catch (Throwable $e) {
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Db::rollback();
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return ['ok' => false, 'msg' => $e->getMessage()];
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}
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self::publishPublicPeriodOpened((string) $record['period_no'], $finalNumber, $now);
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self::publishSnapshot(null);
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return [
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'ok' => true,
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'msg' => '开奖完成',
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'result_number' => $finalNumber,
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'estimated_loss' => $calc['final_estimated_loss'],
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];
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}
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public static function tickAutoDraw(): void
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{
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$record = self::resolveRecord(null);
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if (!$record || !in_array((int) $record['status'], [0, 1], true)) {
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return;
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}
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$betSeconds = self::getConfigInt(self::KEY_BET_SECONDS, 20);
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$periodSeconds = self::getConfigInt(self::KEY_PERIOD_SECONDS, 30);
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$elapsed = max(0, time() - (int) $record['period_start_at']);
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if ($elapsed >= $betSeconds && (int) $record['status'] === 0) {
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Db::name('game_record')->where('id', (int) $record['id'])->update([
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'status' => 1,
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'update_time' => time(),
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]);
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$record['status'] = 1;
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self::publishPublicPeriodLocked($record);
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}
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if ($elapsed < $periodSeconds) {
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return;
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}
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self::drawResult((int) $record['id'], null);
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}
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public static function publishSnapshot(?int $recordId = null): void
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{
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try {
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$payload = self::buildSnapshot($recordId);
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$api = self::createPushApi();
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$api->trigger(self::CHANNEL, self::EVENT, $payload);
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self::publishPublicPeriodTick($payload, $api);
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} catch (Throwable) {
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}
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}
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private static function createPushApi(): Api
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{
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return new Api(
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str_replace('0.0.0.0', '127.0.0.1', (string) config('plugin.webman.push.app.api')),
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(string) config('plugin.webman.push.app.app_key'),
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(string) config('plugin.webman.push.app.app_secret')
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);
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}
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/**
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* 移动端公共频道：每秒心跳，含期号、倒计时、阶段（对齐 lobbyInit/periodCurrent 语义）
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*/
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private static function publishPublicPeriodTick(array $snapshot, Api $api): void
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{
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$record = $snapshot['record'] ?? null;
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$serverTime = (int) ($snapshot['server_time'] ?? time());
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$remaining = (int) ($snapshot['remaining_seconds'] ?? 0);
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$betCloseIn = (int) ($snapshot['bet_remaining_seconds'] ?? 0);
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$periodNo = '';
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$dbStatus = 0;
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$resultNumber = null;
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if (is_array($record)) {
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$periodNo = (string) ($record['period_no'] ?? '');
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$dbStatus = (int) ($record['status'] ?? 0);
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$rn = $record['result_number'] ?? null;
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$resultNumber = is_numeric((string) $rn) ? (int) $rn : null;
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}
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if ($record === null || $periodNo === '') {
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$status = 'idle';
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} else {
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$status = self::mapPublicPeriodStatus($dbStatus, $betCloseIn);
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}
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$payload = [
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'server_time' => $serverTime,
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'period_no' => $periodNo,
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'status' => $status,
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'countdown' => $remaining,
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'bet_close_in'=> $betCloseIn,
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];
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if ($periodNo !== '' && $record !== null) {
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$start = (int) ($record['period_start_at'] ?? 0);
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$betSeconds = (int) ($snapshot['bet_seconds'] ?? 20);
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$periodSeconds = (int) ($snapshot['period_seconds'] ?? 30);
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if ($start > 0) {
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$payload['lock_at'] = $start + $betSeconds;
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$payload['open_at'] = $start + $periodSeconds;
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}
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}
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if ($resultNumber !== null) {
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$payload['result_number'] = $resultNumber;
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}
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$api->trigger(self::CHANNEL_PUBLIC_GAME_PERIOD, self::EVT_PERIOD_TICK, $payload);
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}
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/**
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* @param array<string, mixed> $record game_record 行
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*/
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private static function publishPublicPeriodLocked(array $record): void
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{
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try {
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$start = (int) ($record['period_start_at'] ?? 0);
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$betSeconds = self::getConfigInt(self::KEY_BET_SECONDS, 20);
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$periodNo = (string) ($record['period_no'] ?? '');
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$payload = [
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'period_no' => $periodNo,
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'lock_at' => $start > 0 ? $start + $betSeconds : time(),
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];
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$api = self::createPushApi();
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$api->trigger(self::CHANNEL_PUBLIC_GAME_PERIOD, self::EVT_PERIOD_LOCKED, $payload);
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} catch (Throwable) {
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}
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}
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private static function publishPublicPeriodOpened(string $periodNo, int $resultNumber, int $openTime): void
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{
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try {
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$payload = [
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'period_no' => $periodNo,
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'result_number' => $resultNumber,
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'open_time' => $openTime,
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];
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$api = self::createPushApi();
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$api->trigger(self::CHANNEL_PUBLIC_GAME_PERIOD, self::EVT_PERIOD_OPENED, $payload);
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} catch (Throwable) {
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}
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}
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/**
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* 与文档 3.1/4.1 中 status 字符串对齐：betting / locked / settling / finished
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*/
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private static function mapPublicPeriodStatus(int $dbStatus, int $betCloseIn): string
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{
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if ($dbStatus === 0) {
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return $betCloseIn > 0 ? 'betting' : 'locked';
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}
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if ($dbStatus === 1) {
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return 'locked';
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}
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if ($dbStatus === 4) {
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return 'finished';
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}
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if ($dbStatus === 2 || $dbStatus === 3) {
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return 'settling';
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}
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return 'finished';
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}
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private static function resolveRecord(?int $recordId): ?array
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{
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if ($recordId !== null && $recordId > 0) {
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$row = Db::name('game_record')->where('id', $recordId)->find();
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if ($row) {
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return $row;
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}
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}
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return Db::name('game_record')->whereIn('status', [0, 1, 2, 3])->order('id', 'desc')->find();
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}
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private static function getConfigInt(string $key, int $default): int
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{
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$row = Db::name('game_config')->where('config_key', $key)->find();
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if (!$row) {
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return $default;
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}
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$v = $row['config_value'] ?? null;
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if ($v === null || $v === '') {
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return $default;
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}
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if (!is_numeric((string) $v)) {
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return $default;
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}
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return (int) $v;
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}
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private static function getPickMaxNumberCount(): int
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{
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$max = self::getConfigInt(self::KEY_PICK_MAX_NUMBER_COUNT, 36);
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if ($max < 1) {
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return 1;
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}
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if ($max > 36) {
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return 36;
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}
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return $max;
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}
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private static function estimateLossForNumber(array $bets, int $number): string
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{
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$payout = '0.0000';
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foreach ($bets as $bet) {
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$pickNumbers = $bet['pick_numbers'];
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if (is_string($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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$pickNumbers = [];
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}
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if (!in_array($number, array_map('intval', $pickNumbers), true)) {
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continue;
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}
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$total = (string) ($bet['total_amount'] ?? '0');
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$streak = (int) ($bet['streak_at_bet'] ?? 0);
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$odds = (string) (($streak + 1) * self::BASE_ODDS);
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$orderPayout = bcmul($total, $odds, 4);
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$payout = bcadd($payout, $orderPayout, 4);
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}
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return $payout;
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}
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private static function pickRandomNumber(array $numbers): ?int
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{
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if ($numbers === []) {
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return null;
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}
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if (count($numbers) === 1) {
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return $numbers[0];
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}
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$index = random_int(0, count($numbers) - 1);
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return $numbers[$index];
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}
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}
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