feat(health-profiles): 添加健康档案模块，支持健康史记录、家庭健康管理和档案概览功能

src/users/users.service.ts

@@ -3092,4 +3092,83 @@ export class UsersService {
       };
     }
   }
+
+  /**
+   * 获取用户健康邀请码
+   * 如果用户没有邀请码，则生成一个新的
+   */
+  async getHealthInviteCode(userId: string): Promise<{ code: ResponseCode; message: string; data: { healthInviteCode: string } }> {
+    try {
+      const user = await this.userModel.findByPk(userId);
+      if (!user) {
+        return {
+          code: ResponseCode.ERROR,
+          message: '用户不存在',
+          data: { healthInviteCode: '' },
+        };
+      }
+
+      // 如果用户已有邀请码，直接返回
+      if (user.healthInviteCode) {
+        return {
+          code: ResponseCode.SUCCESS,
+          message: 'success',
+          data: { healthInviteCode: user.healthInviteCode },
+        };
+      }
+
+      // 生成唯一的邀请码（8位随机字母数字组合）
+      const healthInviteCode = await this.generateUniqueInviteCode(8);
+      
+      // 保存到数据库
+      user.healthInviteCode = healthInviteCode;
+      await user.save();
+
+      this.logger.log(`为用户 ${userId} 生成健康邀请码: ${healthInviteCode}`);
+
+      return {
+        code: ResponseCode.SUCCESS,
+        message: 'success',
+        data: { healthInviteCode },
+      };
+    } catch (error) {
+      this.logger.error(`获取健康邀请码失败: ${error instanceof Error ? error.message : '未知错误'}`);
+      return {
+        code: ResponseCode.ERROR,
+        message: `获取健康邀请码失败: ${error instanceof Error ? error.message : '未知错误'}`,
+        data: { healthInviteCode: '' },
+      };
+    }
+  }
+
+  /**
+   * 生成唯一的邀请码，确保不与数据库中已有的重复
+   */
+  private async generateUniqueInviteCode(length: number, maxAttempts = 10): Promise<string> {
+    const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+    
+    for (let attempt = 0; attempt < maxAttempts; attempt++) {
+      // 生成随机邀请码
+      let code = '';
+      for (let i = 0; i < length; i++) {
+        code += chars.charAt(Math.floor(Math.random() * chars.length));
+      }
+      
+      // 检查是否已存在
+      const existing = await this.userModel.findOne({
+        where: { healthInviteCode: code },
+      });
+      
+      if (!existing) {
+        return code;
+      }
+      
+      this.logger.warn(`邀请码 ${code} 已存在，重新生成（第 ${attempt + 1} 次尝试）`);
+    }
+    
+    // 如果多次尝试都失败，使用时间戳+随机数确保唯一性
+    const timestamp = Date.now().toString(36).toUpperCase();
+    const random = Math.random().toString(36).substring(2, 6).toUpperCase();
+    return `${timestamp}${random}`.substring(0, length);
+  }
 }