初始化项目

app/Services/Auth/UserOnlineService.php

@@ -0,0 +1,208 @@
+<?php
+
+namespace App\Services\Auth;
+
+use App\Models\Auth\User;
+use Illuminate\Support\Facades\Cache;
+
+class UserOnlineService
+{
+    protected $cachePrefix = 'user_online:';
+    protected $expireMinutes = 5;
+
+    /**
+     * 设置用户在线
+     */
+    public function setOnline(int $userId, string $token): void
+    {
+        $key = $this->getCacheKey($userId, $token);
+        Cache::put($key, [
+            'user_id' => $userId,
+            'token' => $token,
+            'last_active_at' => now()->toDateTimeString(),
+            'ip' => request()->ip(),
+            'user_agent' => request()->userAgent(),
+        ], now()->addMinutes($this->expireMinutes));
+
+        // 更新用户的最后在线时间
+        User::where('id', $userId)->update([
+            'last_active_at' => now(),
+        ]);
+    }
+
+    /**
+     * 更新用户在线状态
+     */
+    public function updateOnline(int $userId, string $token): void
+    {
+        $key = $this->getCacheKey($userId, $token);
+        if (Cache::has($key)) {
+            Cache::put($key, [
+                'user_id' => $userId,
+                'token' => $token,
+                'last_active_at' => now()->toDateTimeString(),
+                'ip' => request()->ip(),
+                'user_agent' => request()->userAgent(),
+            ], now()->addMinutes($this->expireMinutes));
+        }
+    }
+
+    /**
+     * 设置用户离线
+     */
+    public function setOffline(int $userId, string $token): void
+    {
+        $key = $this->getCacheKey($userId, $token);
+        Cache::forget($key);
+    }
+
+    /**
+     * 设置用户所有设备离线
+     */
+    public function setAllOffline(int $userId): void
+    {
+        $pattern = $this->cachePrefix . $userId . ':*';
+        $keys = Cache::store('redis')->getPrefix() . $pattern;
+
+        // Redis 模式删除
+        if (Cache::getStore() instanceof \Illuminate\Cache\RedisStore) {
+            $redis = Cache::getStore()->connection();
+            $keys = $redis->keys($this->cachePrefix . $userId . ':*');
+            if (!empty($keys)) {
+                $redis->del($keys);
+            }
+        }
+    }
+
+    /**
+     * 检查用户是否在线
+     */
+    public function isOnline(int $userId): bool
+    {
+        $pattern = $this->cachePrefix . $userId . ':*';
+
+        if (Cache::getStore() instanceof \Illuminate\Cache\RedisStore) {
+            $redis = Cache::getStore()->connection();
+            $keys = $redis->keys($this->cachePrefix . $userId . ':*');
+            return !empty($keys);
+        }
+
+        return false;
+    }
+
+    /**
+     * 获取用户在线信息
+     */
+    public function getOnlineInfo(int $userId, string $token): ?array
+    {
+        $key = $this->getCacheKey($userId, $token);
+        return Cache::get($key);
+    }
+
+    /**
+     * 获取用户所有在线会话
+     */
+    public function getUserSessions(int $userId): array
+    {
+        $sessions = [];
+
+        if (Cache::getStore() instanceof \Illuminate\Cache\RedisStore) {
+            $redis = Cache::getStore()->connection();
+            $keys = $redis->keys($this->cachePrefix . $userId . ':*');
+
+            foreach ($keys as $key) {
+                $session = $redis->get($key);
+                if ($session) {
+                    $sessions[] = json_decode($session, true);
+                }
+            }
+        }
+
+        return $sessions;
+    }
+
+    /**
+     * 获取所有在线用户数量
+     */
+    public function getOnlineCount(): int
+    {
+        $count = 0;
+
+        if (Cache::getStore() instanceof \Illuminate\Cache\RedisStore) {
+            $redis = Cache::getStore()->connection();
+            $keys = $redis->keys($this->cachePrefix . '*');
+            // 去重用户ID
+            $userIds = [];
+            foreach ($keys as $key) {
+                preg_match('/user_online:(\d+):/', $key, $matches);
+                if (isset($matches[1])) {
+                    $userIds[$matches[1]] = true;
+                }
+            }
+            $count = count($userIds);
+        }
+
+        return $count;
+    }
+
+    /**
+     * 获取在线用户列表
+     */
+    public function getOnlineUsers(int $limit = 100): array
+    {
+        $onlineUsers = [];
+
+        if (Cache::getStore() instanceof \Illuminate\Cache\RedisStore) {
+            $redis = Cache::getStore()->connection();
+            $keys = $redis->keys($this->cachePrefix . '*');
+
+            $userIds = [];
+            $userSessions = [];
+
+            foreach ($keys as $key) {
+                $session = $redis->get($key);
+                if ($session) {
+                    $session = json_decode($session, true);
+                    $userId = $session['user_id'];
+                    if (!isset($userIds[$userId])) {
+                        $userIds[$userId] = $userId;
+                    }
+                    $userSessions[$userId] = $session;
+                }
+            }
+
+            $userIdList = array_values(array_slice($userIds, 0, $limit));
+            $users = User::whereIn('id', $userIdList)->get();
+
+            foreach ($users as $user) {
+                $onlineUsers[] = [
+                    'id' => $user->id,
+                    'username' => $user->username,
+                    'real_name' => $user->real_name,
+                    'avatar' => $user->avatar,
+                    'last_active_at' => $userSessions[$user->id]['last_active_at'] ?? null,
+                    'ip' => $userSessions[$user->id]['ip'] ?? null,
+                ];
+            }
+        }
+
+        return $onlineUsers;
+    }
+
+    /**
+     * 清理过期会话
+     */
+    public function cleanExpiredSessions(): int
+    {
+        // Redis 的 TTL 会自动清理过期键
+        return 0;
+    }
+
+    /**
+     * 生成缓存键
+     */
+    protected function getCacheKey(int $userId, string $token): string
+    {
+        return $this->cachePrefix . $userId . ':' . md5($token);
+    }
+}