feat: 初始化 ChatOA 企业协作 OA 系统

2026-08-20 19:36:07 +08:00
commit 6d7a1f6e63
90 changed files with 20067 additions and 0 deletions
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+import { Injectable } from '@nestjs/common';
+
+export interface Presence {
+  userId: string;
+  online: boolean;
+  lastSeen: number;
+}
+
+/**
+ * 在线状态管理：开发期使用内存 Map（可分布式广播）。
+ * 后续接入 Redis 时替换为 Redis Hash + Pub/Sub 实现，接口保持一致。
+ */
+@Injectable()
+export class PresenceService {
+  private readonly map = new Map<string, Presence>();
+  /** userId -> Set<socketId>，同一用户多端登录 */
+  private readonly sockets = new Map<string, Set<string>>();
+
+  markOnline(userId: string, socketId: string) {
+    const set = this.sockets.get(userId) ?? new Set<string>();
+    set.add(socketId);
+    this.sockets.set(userId, set);
+    const p: Presence = { userId, online: true, lastSeen: Date.now() };
+    this.map.set(userId, p);
+    return p;
+  }
+
+  markOffline(userId: string, socketId: string): Presence | null {
+    const set = this.sockets.get(userId);
+    if (set) {
+      set.delete(socketId);
+      if (set.size > 0) return this.map.get(userId) ?? null;
+      this.sockets.delete(userId);
+    }
+    const p: Presence = { userId, online: false, lastSeen: Date.now() };
+    this.map.set(userId, p);
+    return p;
+  }
+
+  get(userId: string): Presence {
+    return this.map.get(userId) ?? { userId, online: false, lastSeen: 0 };
+  }
+
+  getAll(): Presence[] {
+    return [...this.map.values()];
+  }
+}