127 lines
4.8 KiB
PHP
127 lines
4.8 KiB
PHP
<?php
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namespace App\Services\Ticket;
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use App\Models\Draw;
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use App\Lottery\ErrorCode;
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use App\Lottery\DrawStatus;
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use App\Exceptions\TicketOperationException;
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final class TicketPreviewService
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{
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public function __construct(
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private readonly PlayCatalogResolver $catalogResolver,
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private readonly PlayRuleEngine $ruleEngine,
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private readonly RiskPoolService $riskPoolService,
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) {}
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/**
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* @param array<string, mixed> $payload
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* @return array<string, mixed>
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*/
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public function preview(array $payload): array
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{
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$draw = Draw::query()->where('draw_no', (string) $payload['draw_id'])->first();
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if ($draw === null) {
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throw new TicketOperationException('draw_not_found', ErrorCode::BetInvalidDraw->value);
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}
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if ($draw->status !== DrawStatus::Open->value) {
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throw new TicketOperationException('draw_closed', ErrorCode::DrawClosed->value);
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}
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$currencyCode = strtoupper((string) $payload['currency_code']);
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$lines = [];
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$totalBet = 0;
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$totalRebate = 0;
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$totalActualDeduct = 0;
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$totalEstimatedPayout = 0;
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$warningRows = [];
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$closedPlayCleanupRows = [];
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foreach ((array) $payload['lines'] as $index => $line) {
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try {
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$resolved = $this->catalogResolver->resolve((string) $line['play_code'], $currencyCode);
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} catch (TicketOperationException $e) {
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if ($e->lotteryCode === ErrorCode::PlayModeClosed->value) {
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$closedPlayCleanupRows[] = [
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'client_line_no' => $index + 1,
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'play_code' => (string) ($line['play_code'] ?? ''),
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];
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continue;
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}
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throw $e;
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}
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$evaluated = $this->ruleEngine->evaluateLine(
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(array) $line,
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$resolved['play_config'],
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$resolved['odds_items'],
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);
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$locks = array_map(fn (array $combo): array => [
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'number_4d' => $combo['number_4d'],
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'amount' => $combo['estimated_payout'],
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], $evaluated['combinations']);
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$riskPreview = $this->riskPoolService->preview((int) $draw->id, $locks);
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foreach ($riskPreview as $riskRow) {
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if ($riskRow['warning']) {
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$warningRows[] = [
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'number_4d' => $riskRow['number_4d'],
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'message' => '该号码赔付池已使用 80% 以上，可能即将售罄',
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];
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}
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}
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$rebateAmount = (int) $evaluated['total_bet_amount'] - (int) $evaluated['actual_deduct_amount'];
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$totalBet += (int) $evaluated['total_bet_amount'];
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$totalRebate += $rebateAmount;
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$totalActualDeduct += (int) $evaluated['actual_deduct_amount'];
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$totalEstimatedPayout += (int) $evaluated['estimated_max_payout'];
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$lines[] = [
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'client_line_no' => $index + 1,
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'number' => $evaluated['original_number'],
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'play_code' => $evaluated['play_code'],
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'normalized_number' => $evaluated['normalized_number'],
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'combination_count' => $evaluated['combination_count'],
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'total_bet_amount' => $evaluated['total_bet_amount'],
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'rebate_rate' => $evaluated['rebate_rate_snapshot'],
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'rebate_amount' => $rebateAmount,
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'actual_deduct_amount' => $evaluated['actual_deduct_amount'],
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'estimated_max_payout' => $evaluated['estimated_max_payout'],
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'risk_status' => 'ok',
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'warnings' => [],
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'rule_snapshot_json' => $evaluated['rule_snapshot_json'],
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];
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}
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if ($closedPlayCleanupRows !== []) {
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throw new TicketOperationException(
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'play_closed_need_cleanup',
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ErrorCode::PlayModeClosed->value,
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400,
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[
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'cleanup_hint' => '玩法已关闭，相关注项已清理',
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'cleanup_lines' => $closedPlayCleanupRows,
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],
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);
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}
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return [
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'draw' => [
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'draw_id' => $draw->draw_no,
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'status' => $draw->status,
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],
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'config_versions' => $this->catalogResolver->currentActiveVersionStamp(),
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'summary' => [
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'total_bet_amount' => $totalBet,
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'total_rebate_amount' => $totalRebate,
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'total_actual_deduct' => $totalActualDeduct,
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'total_estimated_payout' => $totalEstimatedPayout,
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],
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'lines' => $lines,
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'warnings' => $warningRows,
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];
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}
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}
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