126 lines
4.7 KiB
PHP
126 lines
4.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace app\api\logic;
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use app\api\cache\UserCache;
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use app\dice\model\player\DicePlayer;
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use app\dice\model\player_ticket_record\DicePlayerTicketRecord;
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use app\dice\model\player_wallet_record\DicePlayerWalletRecord;
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use plugin\saiadmin\exception\ApiException;
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use support\think\Db;
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/**
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* 购买抽奖券套餐：次数 => [消耗coin, 购买次数paid, 赠送次数free]
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* 仅支持 1、5、10 档
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*/
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class GameLogic
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{
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public const PACKAGES = [
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1 => ['coin' => 100, 'paid' => 1, 'free' => 0], // 1次/100coin
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5 => ['coin' => 500, 'paid' => 5, 'free' => 1], // 5张/500coin（5购买+1赠送，共6次）
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10 => ['coin' => 1000, 'paid' => 10, 'free' => 3], // 10张/1000coin（10购买+3赠送，共13次）
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];
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/** 钱包流水类型：购买抽奖次数 */
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public const WALLET_TYPE_BUY_DRAW = 2;
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/**
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* 购买抽奖券
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* 先更新 Redis 玩家信息（后续游玩从 Redis 读），再用事务更新数据库；事务失败则回滚 Redis
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* @param int $playerId 玩家ID
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* @param int $count 购买档位：1 / 5 / 10
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* @return array 更新后的 coin, total_ticket_count, paid_ticket_count, free_ticket_count
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*/
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public function buyLotteryTickets(int $playerId, int $count): array
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{
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if (!isset(self::PACKAGES[$count])) {
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throw new ApiException('购买抽奖券错误');
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}
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$pack = self::PACKAGES[$count];
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$cost = $pack['coin'];
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$addPaid = $pack['paid'];
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$addFree = $pack['free'];
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$addTotal = $addPaid + $addFree;
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$player = DicePlayer::find($playerId);
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if (!$player) {
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throw new ApiException('用户不存在');
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}
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$coinBefore = (float) $player->coin;
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if ($coinBefore < $cost) {
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throw new ApiException('平台币不足');
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}
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$coinAfter = $coinBefore - $cost;
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$totalBefore = (int) ($player->total_ticket_count ?? 0);
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$paidBefore = (int) ($player->paid_ticket_count ?? 0);
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$freeBefore = (int) ($player->free_ticket_count ?? 0);
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$totalAfter = $totalBefore + $addTotal;
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$paidAfter = $paidBefore + $addPaid;
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$freeAfter = $freeBefore + $addFree;
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$oldUserArr = $player->hidden(['password'])->toArray();
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$updatedUserArr = $oldUserArr;
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$updatedUserArr['coin'] = $coinAfter;
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$updatedUserArr['total_ticket_count'] = $totalAfter;
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$updatedUserArr['paid_ticket_count'] = $paidAfter;
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$updatedUserArr['free_ticket_count'] = $freeAfter;
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UserCache::setUser($playerId, $updatedUserArr);
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try {
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Db::transaction(function () use (
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$player,
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$playerId,
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$cost,
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$coinBefore,
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$coinAfter,
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$addTotal,
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$addPaid,
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$addFree,
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$totalAfter,
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$paidAfter,
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$freeAfter
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) {
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$player->coin = $coinAfter;
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$player->total_ticket_count = $totalAfter;
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$player->paid_ticket_count = $paidAfter;
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$player->free_ticket_count = $freeAfter;
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$player->save();
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DicePlayerWalletRecord::create([
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'player_id' => $playerId,
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'coin' => -$cost,
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'type' => self::WALLET_TYPE_BUY_DRAW,
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'wallet_before' => $coinBefore,
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'wallet_after' => $coinAfter,
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'total_ticket_count' => $addTotal,
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'paid_ticket_count' => $addPaid,
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'free_ticket_count' => $addFree,
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'remark' => "购买抽奖券{$addTotal}次（付费{$addPaid}次+赠送{$addFree}次）",
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]);
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DicePlayerTicketRecord::create([
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'player_id' => $playerId,
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'use_coins' => $cost,
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'total_ticket_count' => $addTotal,
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'paid_ticket_count' => $addPaid,
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'free_ticket_count' => $addFree,
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'remark' => "购买抽奖券{$addTotal}次（付费{$addPaid}次+赠送{$addFree}次）",
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]);
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});
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} catch (\Throwable $e) {
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UserCache::setUser($playerId, $oldUserArr);
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throw $e;
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}
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return [
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'coin' => (float) $coinAfter,
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'total_ticket_count' => (int) $totalAfter,
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'paid_ticket_count' => (int) $paidAfter,
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'free_ticket_count' => (int) $freeAfter,
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];
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}
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}
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