[接口]新增获取彩金池，购买游戏次数（购买抽奖券）接口

2026-03-04 15:35:30 +08:00
parent dead78a5f3
commit 5d0e2a82ff
3 changed files with 170 additions and 0 deletions
--- a/server/app/api/logic/GameLogic.php
+++ b/server/app/api/logic/GameLogic.php
@@ -0,0 +1,101 @@
+<?php
+declare(strict_types=1);
+
+namespace app\api\logic;
+
+use app\dice\model\player\DicePlayer;
+use app\dice\model\player_wallet_record\DicePlayerWalletRecord;
+use app\api\cache\UserCache;
+use plugin\saiadmin\exception\ApiException;
+use support\think\Db;
+
+/**
+ * 购买抽奖券套餐：次数 => [消耗coin, 购买次数paid, 赠送次数free]
+ * 仅支持 1、5、10 档
+ */
+class GameLogic
+{
+    public const PACKAGES = [
+        1  => ['coin' => 100,  'paid' => 1,  'free' => 0],   // 1次/100coin
+        5  => ['coin' => 500,  'paid' => 5,  'free' => 1],   // 5张/500coin（5购买+1赠送，共6次）
+        10 => ['coin' => 1000, 'paid' => 10, 'free' => 3],   // 10张/1000coin（10购买+3赠送，共13次）
+    ];
+
+    /** 钱包流水类型：购买抽奖次数 */
+    public const WALLET_TYPE_BUY_DRAW = 2;
+
+    /**
+     * 购买抽奖券
+     * @param int $playerId 玩家ID（即 user_id）
+     * @param int $count 购买档位：1 / 5 / 10
+     * @return array 更新后的 coin, total_draw_count, paid_draw_count, free_draw_count
+     */
+    public function buyLotteryTickets(int $playerId, int $count): array
+    {
+        if (!isset(self::PACKAGES[$count])) {
+            throw new ApiException('购买抽奖券错误');
+        }
+        $pack = self::PACKAGES[$count];
+        $cost = $pack['coin'];
+        $addPaid = $pack['paid'];
+        $addFree = $pack['free'];
+        $addTotal = $addPaid + $addFree;
+
+        $player = DicePlayer::find($playerId);
+        if (!$player) {
+            throw new ApiException('用户不存在');
+        }
+        $coinBefore = (float) $player->coin;
+        if ($coinBefore < $cost) {
+            throw new ApiException('平台币不足');
+        }
+
+        $coinAfter = $coinBefore - $cost;
+        $totalBefore = (int) ($player->total_draw_count ?? 0);
+        $paidBefore = (int) ($player->paid_draw_count ?? 0);
+        $freeBefore = (int) ($player->free_draw_count ?? 0);
+
+        Db::transaction(function () use (
+            $player,
+            $playerId,
+            $cost,
+            $coinBefore,
+            $coinAfter,
+            $addTotal,
+            $addPaid,
+            $addFree,
+            $totalBefore,
+            $paidBefore,
+            $freeBefore
+        ) {
+            $player->coin = $coinAfter;
+            $player->total_draw_count = $totalBefore + $addTotal;
+            $player->paid_draw_count = $paidBefore + $addPaid;
+            $player->free_draw_count = $freeBefore + $addFree;
+            $player->save();
+
+            DicePlayerWalletRecord::create([
+                'player_id'         => $playerId,
+                'coin'              => -$cost,
+                'type'              => self::WALLET_TYPE_BUY_DRAW,
+                'wallet_before'     => $coinBefore,
+                'wallet_after'      => $coinAfter,
+                'total_draw_count'  => $addTotal,
+                'paid_draw_count'   => $addPaid,
+                'free_draw_count'   => $addFree,
+                'remark'            => "购买抽奖券{$addTotal}次（付费{$addPaid}次+赠送{$addFree}次）",
+            ]);
+        });
+
+        $updated = DicePlayer::find($playerId);
+        $userArr = $updated->hidden(['password'])->toArray();
+        UserCache::setUser($playerId, $userArr);
+
+        return [
+            'coin'               => (float) $updated->coin,
+            'total_draw_count'   => (int) $updated->total_draw_count,
+            'paid_draw_count'    => (int) $updated->paid_draw_count,
+            'free_draw_count'    => (int) $updated->free_draw_count,
+        ];
+    }
+}