Feat: 商店功能完整实现（单次特效卡888/周卡8888/改名卡5000，含购买、周卡覆盖、改名黑名单）
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<?php
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/**
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* 文件功能：商店业务逻辑服务层
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* 处理商品购买、周卡激活/覆盖、改名卡使用等全部核心业务
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*/
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namespace App\Services;
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use App\Models\ShopItem;
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use App\Models\User;
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use App\Models\UsernameBlacklist;
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use App\Models\UserPurchase;
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use Illuminate\Support\Carbon;
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use Illuminate\Support\Facades\DB;
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class ShopService
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{
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/**
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* 购买商品入口：扣金币、按类型分发处理
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*
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* @return array{ok:bool, message:string, play_effect?:string}
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*/
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public function buyItem(User $user, ShopItem $item): array
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{
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// 校验金币是否足够
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if ($user->jjb < $item->price) {
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return ['ok' => false, 'message' => "金币不足，购买 [{$item->name}] 需要 {$item->price} 金币，当前仅有 {$user->jjb} 金币。"];
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}
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return match ($item->type) {
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'instant' => $this->buyInstant($user, $item),
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'duration' => $this->buyWeekCard($user, $item),
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'one_time' => $this->buyRenameCard($user, $item),
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default => ['ok' => false, 'message' => '未知商品类型'],
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};
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}
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/**
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* 购买单次特效卡：立即扣金币，记录已用，返回需要播放的特效 key
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*
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* @return array{ok:bool, message:string, play_effect?:string}
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*/
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public function buyInstant(User $user, ShopItem $item): array
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{
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DB::transaction(function () use ($user, $item) {
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// 扣除金币
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$user->decrement('jjb', $item->price);
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// 写入已使用记录（用于统计）
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UserPurchase::create([
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'user_id' => $user->id,
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'shop_item_id' => $item->id,
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'status' => 'used',
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'price_paid' => $item->price,
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'used_at' => Carbon::now(),
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]);
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});
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return [
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'ok' => true,
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'message' => "购买成功！{$item->icon} {$item->name} 正在为您播放...",
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'play_effect' => $item->effectKey(), // 返回特效 key 让前端立即播放
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];
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}
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/**
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* 购买周卡：取消旧周卡（金币不退），激活新周卡，有效期7天
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*
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* @return array{ok:bool, message:string}
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*/
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public function buyWeekCard(User $user, ShopItem $item): array
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{
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DB::transaction(function () use ($user, $item) {
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// 将所有已激活的周卡标记为 cancelled（金币不退）
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UserPurchase::where('user_id', $user->id)
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->where('status', 'active')
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->whereHas('shopItem', fn ($q) => $q->where('type', 'duration'))
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->update(['status' => 'cancelled']);
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// 扣除金币
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$user->decrement('jjb', $item->price);
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// 写入新的激活记录
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UserPurchase::create([
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'user_id' => $user->id,
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'shop_item_id' => $item->id,
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'status' => 'active',
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'price_paid' => $item->price,
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'expires_at' => Carbon::now()->addDays($item->duration_days ?? 7),
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]);
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});
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return ['ok' => true, 'message' => "购买成功！{$item->icon} {$item->name} 已激活，下次登录自动生效（连续7天）。"];
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}
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/**
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* 购买改名卡：扣金币、写 active 记录备用
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*
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* @return array{ok:bool, message:string}
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*/
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public function buyRenameCard(User $user, ShopItem $item): array
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{
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// 检查是否已有未使用的改名卡
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$existing = UserPurchase::where('user_id', $user->id)
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->where('status', 'active')
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->whereHas('shopItem', fn ($q) => $q->where('slug', 'rename_card'))
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->exists();
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if ($existing) {
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return ['ok' => false, 'message' => '您已有一张未使用的改名卡，使用后再购买。'];
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}
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DB::transaction(function () use ($user, $item) {
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$user->decrement('jjb', $item->price);
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UserPurchase::create([
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'user_id' => $user->id,
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'shop_item_id' => $item->id,
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'status' => 'active',
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'price_paid' => $item->price,
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]);
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});
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return ['ok' => true, 'message' => '改名卡购买成功！请在商店中使用改名卡修改昵称。'];
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}
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/**
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* 使用改名卡：校验新名、加黑名单、更新用户名
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*
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* @param string $newName 新昵称
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* @return array{ok:bool, message:string}
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*/
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public function useRenameCard(User $user, string $newName): array
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{
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$newName = trim($newName);
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// 格式校验：1-10字符，中英文数字下划线
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if (! preg_match('/^[\x{4e00}-\x{9fa5}a-zA-Z0-9_]{1,10}$/u', $newName)) {
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return ['ok' => false, 'message' => '新昵称格式不合法（1-10字，中英文/数字/下划线）。'];
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}
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// 不能与自己现有名相同
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if ($newName === $user->username) {
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return ['ok' => false, 'message' => '新昵称与当前昵称相同，请重新输入。'];
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}
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// 不能与其他用户重名
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if (User::where('username', $newName)->exists()) {
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return ['ok' => false, 'message' => '该昵称已被他人注册，请换一个。'];
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}
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// 不能在黑名单保留期内
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if (UsernameBlacklist::isReserved($newName)) {
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return ['ok' => false, 'message' => '该昵称处于保护期，暂时无法使用。'];
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}
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// 查找有效的改名卡记录
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$purchase = UserPurchase::where('user_id', $user->id)
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->where('status', 'active')
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->whereHas('shopItem', fn ($q) => $q->where('slug', 'rename_card'))
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->first();
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if (! $purchase) {
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return ['ok' => false, 'message' => '您没有可用的改名卡，请先购买。'];
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}
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DB::transaction(function () use ($user, $purchase, $newName) {
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$oldName = $user->username;
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// 修改用户名
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$user->username = $newName;
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$user->save();
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// 旧名入黑名单（保留30天）
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UsernameBlacklist::updateOrCreate(
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['username' => $oldName],
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['reserved_until' => Carbon::now()->addDays(30), 'created_at' => Carbon::now()]
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);
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// 标记改名卡为已使用
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$purchase->update(['status' => 'used', 'used_at' => Carbon::now()]);
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});
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return ['ok' => true, 'message' => "改名成功！您的新昵称为【{$newName}】，旧昵称将保留30天黑名单。注意：历史消息中的旧名不会同步修改。"];
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}
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/**
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* 获取用户当前激活的周卡特效 key（如 fireworks/rain/lightning/snow）
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* 过期的周卡会自动标记为 expired
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*/
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public function getActiveWeekEffect(User $user): ?string
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{
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$purchase = UserPurchase::with('shopItem')
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->where('user_id', $user->id)
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->where('status', 'active')
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->whereHas('shopItem', fn ($q) => $q->where('type', 'duration'))
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->first();
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if (! $purchase) {
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return null;
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}
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// 检查是否过期
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if ($purchase->expires_at && $purchase->expires_at->isPast()) {
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$purchase->update(['status' => 'expired']);
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return null;
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}
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return $purchase->shopItem->effectKey();
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}
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/**
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* 获取用户当前激活的改名卡（是否持有未用改名卡）
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*/
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public function hasRenameCard(User $user): bool
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{
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return UserPurchase::where('user_id', $user->id)
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->where('status', 'active')
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->whereHas('shopItem', fn ($q) => $q->where('slug', 'rename_card'))
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->exists();
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}
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}
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