/*
    Copyright (c)  2013 IOnU Security Inc. All rights reserved
    Created October 2013 by Kendrick Webster
    
    K2Daemon/OfficeSubscriptions.h - header for office subscriptions module
    
    Clients may subscribe to online/offline status notifications for clients
    within a specified list of offices.  This module keeps track of which
    clients are interested in which offices.  It also facilitates the
    delivery of status notifications to interested clients.
*/
#pragma once

namespace OfficeSubscriptions
{
    // Subscribe a client to a list of offices (represented as
    // office URNs delimited by <K2IPC_OFFICE_DELIMITER>).
    // The list is replaced (not appended).
    // An empty list ("") removes all subscriptions.
    void Subscribe(const char* client_urn, const char* office_urns);
    
    // Send status notifications to clients interested in the
    // office to which <client_urn> belongs.
    typedef enum
    {
        OFFLINE,
        ONLINE
    } client_state_t;
    void NotifyStatus(const char* client_urn, client_state_t client_state);
    
    // returns the number of subscribed offices
    unsigned int OfficeCount(void);
    
    // returns the number of subscriptions (client * office)
    unsigned int SubscriptionCount(void);
}