优化ai小班长

2026-04-12 22:25:18 +08:00
parent f8d5a3b250
commit ef407a8c6e
7 changed files with 608 additions and 91 deletions
@@ -0,0 +1,215 @@
+<?php
+
+/**
+ * 文件功能：AI小班长资金调度服务
+ *
+ * 统一维护 AI小班长的银行存取与阶段性理财里程碑公告，
+ * 常规场景下仅在手上金币超过 100 万时自动存银行，
+ * 特殊场景（如买单活动全仓下注）才会动用银行资产。
+ */
+
+namespace App\Services;
+
+use App\Events\MessageSent;
+use App\Jobs\SaveMessageJob;
+use App\Models\BankLog;
+use App\Models\User;
+use Illuminate\Support\Facades\DB;
+
+/**
+ * 负责 AI小班长的常规存款、全仓取款与里程碑播报。
+ */
+class AiFinanceService
+{
+    /**
+     * AI小班长手上需要保留的最低可用金币。
+     */
+    public const AVAILABLE_GOLD_RESERVE = 1000000;
+
+    /**
+     * 银行存款的阶段性目标。
+     *
+     * @var list<int>
+     */
+    private const BANK_MILESTONES = [
+        10000000,
+        30000000,
+    ];
+
+    /**
+     * 注入聊天室状态服务，用于里程碑公告广播。
+     */
+    public function __construct(
+        private readonly ChatStateService $chatState,
+    ) {}
+
+    /**
+     * 计算 AI 当前手上可直接使用的金币。
+     */
+    public function getSpendableGold(User $user): int
+    {
+        return (int) ($user->jjb ?? 0);
+    }
+
+    /**
+     * 计算 AI 当前持有的金币总资产（手上 + 银行）。
+     */
+    public function getTotalGoldAssets(User $user): int
+    {
+        return (int) ($user->jjb ?? 0) + (int) ($user->bank_jjb ?? 0);
+    }
+
+    /**
+     * 判断 AI 当前手上金币是否足够支付本次支出。
+     */
+    public function prepareSpend(User $user, int $spendAmount): bool
+    {
+        if ($spendAmount <= 0) {
+            return true;
+        }
+
+        $user->refresh();
+
+        return (int) ($user->jjb ?? 0) >= $spendAmount;
+    }
+
+    /**
+     * 为全仓支出准备手头金币。
+     *
+     * 该模式不会保留手上余额阈值，适用于买单活动等可接受全额下注的场景。
+     */
+    public function prepareAllInSpend(User $user, int $spendAmount): bool
+    {
+        if ($spendAmount <= 0) {
+            return true;
+        }
+
+        return $this->raiseWalletTo($user, $spendAmount);
+    }
+
+    /**
+     * 将 100 万以上的富余金币自动转存到银行。
+     */
+    public function bankExcessGold(User $user): void
+    {
+        $milestones = DB::transaction(function () use ($user): array {
+            $lockedUser = User::query()->lockForUpdate()->find($user->id);
+            if (! $lockedUser) {
+                return [];
+            }
+
+            $walletGold = (int) ($lockedUser->jjb ?? 0);
+            if ($walletGold <= self::AVAILABLE_GOLD_RESERVE) {
+                return [];
+            }
+
+            $bankBefore = (int) ($lockedUser->bank_jjb ?? 0);
+            $depositAmount = $walletGold - self::AVAILABLE_GOLD_RESERVE;
+
+            // 只把超过 100 万的部分转入银行，手上保留不高于 100 万的常规活动资金。
+            $lockedUser->jjb = self::AVAILABLE_GOLD_RESERVE;
+            $lockedUser->bank_jjb = $bankBefore + $depositAmount;
+            $lockedUser->save();
+
+            BankLog::create([
+                'user_id' => $lockedUser->id,
+                'type' => 'deposit',
+                'amount' => $depositAmount,
+                'balance_after' => (int) $lockedUser->bank_jjb,
+            ]);
+
+            return array_values(array_filter(
+                self::BANK_MILESTONES,
+                fn (int $milestone): bool => $bankBefore < $milestone && (int) $lockedUser->bank_jjb >= $milestone,
+            ));
+        });
+
+        $user->refresh();
+
+        foreach ($milestones as $milestone) {
+            $this->broadcastMilestoneAnnouncement($milestone);
+        }
+    }
+
+    /**
+     * 一次性完成 AI 常规理财：仅把超过 100 万的部分转入银行。
+     */
+    public function rebalanceHoldings(User $user): void
+    {
+        $this->bankExcessGold($user);
+    }
+
+    /**
+     * 将手上金币抬升到目标值，必要时从银行自动取款。
+     */
+    private function raiseWalletTo(User $user, int $targetWalletGold): bool
+    {
+        $reachedTarget = DB::transaction(function () use ($user, $targetWalletGold): bool {
+            $lockedUser = User::query()->lockForUpdate()->find($user->id);
+            if (! $lockedUser) {
+                return false;
+            }
+
+            $walletGold = (int) ($lockedUser->jjb ?? 0);
+            if ($walletGold >= $targetWalletGold) {
+                return true;
+            }
+
+            $bankGold = (int) ($lockedUser->bank_jjb ?? 0);
+            $withdrawAmount = min($targetWalletGold - $walletGold, $bankGold);
+            if ($withdrawAmount <= 0) {
+                return false;
+            }
+
+            // 优先把银行金币提回手上，保证 AI 的即时可用余额尽量回到目标线。
+            $lockedUser->jjb = $walletGold + $withdrawAmount;
+            $lockedUser->bank_jjb = $bankGold - $withdrawAmount;
+            $lockedUser->save();
+
+            BankLog::create([
+                'user_id' => $lockedUser->id,
+                'type' => 'withdraw',
+                'amount' => $withdrawAmount,
+                'balance_after' => (int) $lockedUser->bank_jjb,
+            ]);
+
+            return (int) $lockedUser->jjb >= $targetWalletGold;
+        });
+
+        $user->refresh();
+
+        return $reachedTarget;
+    }
+
+    /**
+     * 广播 AI小班长达成银行存款目标的全站公告。
+     */
+    private function broadcastMilestoneAnnouncement(int $milestone): void
+    {
+        $roomIds = $this->chatState->getAllActiveRoomIds();
+        if (empty($roomIds)) {
+            $roomIds = [1];
+        }
+
+        $milestoneInWan = (int) ($milestone / 10000);
+        $content = "🏆 🎉 <b>【全站公告】</b> 恭喜 <b>AI小班长</b> 达成理财新高度！<br/>他在银行的存款已成功突破 <span style='color:#e11d48;font-weight:bold;'>{$milestoneInWan}万</span> 金币！💰✨";
+
+        foreach ($roomIds as $roomId) {
+            $message = [
+                'id' => $this->chatState->nextMessageId($roomId),
+                'room_id' => $roomId,
+                'from_user' => '系统传音',
+                'to_user' => '大家',
+                'content' => $content,
+                'is_secret' => false,
+                'font_color' => '#f59e0b',
+                'action' => '大声宣告',
+                'sent_at' => now()->toDateTimeString(),
+            ];
+
+            $this->chatState->pushMessage($roomId, $message);
+            broadcast(new MessageSent($roomId, $message));
+            SaveMessageJob::dispatch($message);
+        }
+    }
+}