feat: 添加 Laravel Reverb 支持，更新 .env.example 文件以配置 WebSocket，增强彩票调度功能，更新 API 路由以支持期号管理与结果发布
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168
app/Services/Draw/DrawPlannerService.php
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168
app/Services/Draw/DrawPlannerService.php
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<?php
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namespace App\Services\Draw;
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use App\Lottery\DrawStatus;
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use App\Models\Draw;
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use Carbon\Carbon;
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use Illuminate\Database\QueryException;
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use Illuminate\Support\Facades\DB;
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/**
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* 按计划生成未来的 `draws` 行（期号、时间表）。
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*/
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final class DrawPlannerService
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{
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/** @return array{created: int, buffer_target: int, upcoming: int} */
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public function ensureBuffer(?Carbon $now = null): array
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{
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$nowUtc = ($now ?? Carbon::now())->utc();
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$tz = (string) config('lottery.draw.timezone', 'UTC');
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$interval = (int) config('lottery.draw.interval_minutes', 5);
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$buffer = (int) config('lottery.draw.buffer_draws_ahead', 8);
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$maxSeq = intdiv(24 * 60, $interval);
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$upcoming = Draw::query()
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->where('draw_time', '>', $nowUtc)
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->where('status', '!=', DrawStatus::Cancelled->value)
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->count();
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$created = 0;
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$guard = 0;
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while ($upcoming < $buffer && $guard < 10_000) {
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$guard++;
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$nowLocal = $nowUtc->copy()->timezone($tz);
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$last = Draw::query()
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->orderByDesc('business_date')
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->orderByDesc('sequence_no')
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->first();
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$row = $last === null
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? $this->firstSchedule($tz, $interval, $maxSeq, $nowLocal)
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: $this->scheduleAfter($last, $tz, $interval, $maxSeq, $nowLocal);
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try {
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DB::transaction(function () use ($row, $nowUtc, &$created): void {
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Draw::query()->create($this->timelinePayload($row, $nowUtc));
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$created++;
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});
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$upcoming++;
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} catch (QueryException $e) {
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if (($e->errorInfo[1] ?? null) === 19 || str_contains($e->getMessage(), 'unique')) {
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/** 并发或重试：下一循环用新的 last 行 */
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continue;
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}
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throw $e;
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}
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}
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return [
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'created' => $created,
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'buffer_target' => $buffer,
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'upcoming' => $upcoming,
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];
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}
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/**
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* @return array{business_date: string, sequence_no: int, draw_local: Carbon}
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*/
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private function firstSchedule(string $tz, int $intervalMinutes, int $maxSeqPerDay, Carbon $nowLocal): array
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{
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$day = $nowLocal->copy()->startOfDay();
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$seq = 1;
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$drawLocal = $day->copy()->addMinutes($seq * $intervalMinutes);
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while ($drawLocal <= $nowLocal && $seq <= $maxSeqPerDay) {
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$seq++;
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$drawLocal = $day->copy()->addMinutes($seq * $intervalMinutes);
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}
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if ($seq > $maxSeqPerDay) {
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$day = $day->addDay();
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$seq = 1;
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$drawLocal = $day->copy()->addMinutes($seq * $intervalMinutes);
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while ($drawLocal <= $nowLocal && $seq <= $maxSeqPerDay) {
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$seq++;
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$drawLocal = $day->copy()->addMinutes($seq * $intervalMinutes);
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}
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}
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return [
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'business_date' => $day->format('Y-m-d'),
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'sequence_no' => $seq,
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'draw_local' => $drawLocal->copy()->timezone($tz),
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];
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}
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/**
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* @return array{business_date: string, sequence_no: int, draw_local: Carbon}
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*/
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private function scheduleAfter(Draw $last, string $tz, int $intervalMinutes, int $maxSeqPerDay, Carbon $nowLocal): array
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{
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$day = Carbon::parse((string) $last->business_date, $tz)->startOfDay();
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$seq = (int) $last->sequence_no + 1;
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if ($seq > $maxSeqPerDay) {
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$day = $day->addDay();
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$seq = 1;
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}
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$drawLocal = $day->copy()->addMinutes($seq * $intervalMinutes);
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while ($drawLocal <= $nowLocal) {
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$seq++;
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if ($seq > $maxSeqPerDay) {
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$day = $day->addDay();
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$seq = 1;
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}
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$drawLocal = $day->copy()->addMinutes($seq * $intervalMinutes);
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}
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return [
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'business_date' => $day->format('Y-m-d'),
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'sequence_no' => $seq,
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'draw_local' => $drawLocal->copy()->timezone($tz),
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];
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}
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/**
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* @param array{business_date: string, sequence_no: int, draw_local: Carbon} $row
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* @return array<string, mixed>
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*/
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private function timelinePayload(array $row, Carbon $nowUtc): array
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{
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$closeBefore = (int) config('lottery.draw.close_before_draw_seconds', 30);
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$bettingWindow = (int) config('lottery.draw.betting_window_seconds', 270);
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$drawLocal = $row['draw_local']->copy();
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$closeLocal = $drawLocal->copy()->subSeconds($closeBefore);
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$startLocal = $closeLocal->copy()->subSeconds($bettingWindow);
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$startUtc = $startLocal->copy()->timezone('UTC');
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$closeUtc = $closeLocal->copy()->timezone('UTC');
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$drawUtc = $drawLocal->copy()->timezone('UTC');
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if ($nowUtc < $startUtc) {
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$status = DrawStatus::Pending->value;
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} elseif ($nowUtc < $closeUtc) {
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$status = DrawStatus::Open->value;
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} elseif ($nowUtc < $drawUtc) {
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$status = DrawStatus::Closing->value;
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} else {
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$status = DrawStatus::Closed->value;
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}
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return [
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'draw_no' => str_replace('-', '', $row['business_date']).'-'.
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str_pad((string) $row['sequence_no'], 3, '0', STR_PAD_LEFT),
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'business_date' => $row['business_date'],
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'sequence_no' => $row['sequence_no'],
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'status' => $status,
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'start_time' => $startLocal->copy()->timezone('UTC'),
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'close_time' => $closeLocal->copy()->timezone('UTC'),
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'draw_time' => $drawLocal->copy()->timezone('UTC'),
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'cooling_end_time' => null,
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'result_source' => null,
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'current_result_version' => 0,
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'settle_version' => 0,
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'is_reopened' => false,
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];
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}
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}
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