Files
webman-buildadmin/app/common/service/GameLiveService.php

121 lines
3.9 KiB
PHP

<?php
declare(strict_types=1);
namespace app\common\service;
use support\think\Db;
use Throwable;
use Webman\Push\Api;
final class GameLiveService
{
private const BASE_ODDS = 33;
private const CHANNEL = 'game-live';
private const EVENT = 'bet-updated';
public static function buildSnapshot(?int $recordId = null): array
{
$record = self::resolveRecord($recordId);
if (!$record) {
return [
'record' => null,
'bets' => [],
'candidate_numbers' => [],
'ai_default_number' => null,
'server_time' => time(),
];
}
$bets = Db::name('bet_order')
->where('period_id', (int) $record['id'])
->order('id', 'desc')
->limit(200)
->select()
->toArray();
$candidates = [];
$bestNumber = null;
$bestLoss = null;
for ($n = 1; $n <= 36; $n++) {
$loss = self::estimateLossForNumber($bets, $n);
$candidates[] = [
'number' => $n,
'estimated_loss' => $loss,
];
if ($bestLoss === null || bccomp((string) $loss, (string) $bestLoss, 4) < 0) {
$bestLoss = $loss;
$bestNumber = $n;
}
}
return [
'record' => $record,
'bets' => array_map(static function (array $row): array {
return [
'id' => (int) $row['id'],
'user_id' => (int) $row['user_id'],
'period_no' => (string) $row['period_no'],
'pick_numbers' => $row['pick_numbers'],
'unit_amount' => (string) $row['unit_amount'],
'total_amount' => (string) $row['total_amount'],
'streak_at_bet' => (int) $row['streak_at_bet'],
'create_time' => (int) $row['create_time'],
];
}, $bets),
'candidate_numbers' => $candidates,
'ai_default_number' => $bestNumber,
'server_time' => time(),
];
}
public static function publishSnapshot(?int $recordId = null): void
{
try {
$payload = self::buildSnapshot($recordId);
$api = new Api(
str_replace('0.0.0.0', '127.0.0.1', (string) config('plugin.webman.push.app.api')),
(string) config('plugin.webman.push.app.app_key'),
(string) config('plugin.webman.push.app.app_secret')
);
$api->trigger(self::CHANNEL, self::EVENT, $payload);
} catch (Throwable) {
}
}
private static function resolveRecord(?int $recordId): ?array
{
if ($recordId !== null && $recordId > 0) {
$row = Db::name('game_record')->where('id', $recordId)->find();
if ($row) {
return $row;
}
}
return Db::name('game_record')->whereIn('status', [0, 1, 2, 3])->order('id', 'desc')->find();
}
private static function estimateLossForNumber(array $bets, int $number): string
{
$payout = '0.0000';
foreach ($bets as $bet) {
$pickNumbers = $bet['pick_numbers'];
if (is_string($pickNumbers)) {
$decoded = json_decode($pickNumbers, true);
$pickNumbers = is_array($decoded) ? $decoded : [];
}
if (!is_array($pickNumbers)) {
$pickNumbers = [];
}
if (!in_array($number, array_map('intval', $pickNumbers), true)) {
continue;
}
$unit = (string) ($bet['unit_amount'] ?? '0');
$streak = (int) ($bet['streak_at_bet'] ?? 0);
$odds = (string) (($streak + 1) * self::BASE_ODDS);
$orderPayout = bcmul($unit, $odds, 4);
$payout = bcadd($payout, $orderPayout, 4);
}
return $payout;
}
}