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#ifndef BRIDGE_INCLUDED
# define BRIDGE_INCLUDED
#include <irc/irc_client.hpp>
#include <irc/iid.hpp>
#include <unordered_map>
#include <string>
#include <memory>
class XmppComponent;
class Poller;
/**
* One bridge is spawned for each XMPP user that uses the component. The
* bridge spawns IrcClients when needed (when the user wants to join a
* channel on a new server) and does the translation between the two
* protocols.
*/
class Bridge
{
public:
explicit Bridge(const std::string& user_jid, XmppComponent* xmpp, Poller* poller);
~Bridge();
/***
**
** From XMPP to IRC.
**
**/
void join_irc_channel(const Iid& iid, const std::string& username);
void send_channel_message(const Iid& iid, const std::string& body);
/***
**
** From IRC to XMPP.
**
**/
/**
* Send a message corresponding to a server NOTICE, the from attribute
* should be juste the server hostname@irc.component.
*/
void send_xmpp_message(const std::string& from, const std::string& author, const std::string& msg);
/**
* Send the presence of a new user in the MUC.
*/
void send_user_join(const std::string& hostname, const std::string& chan_name, const std::string nick);
/**
* Send the self presence of an user when the MUC is fully joined.
*/
void send_self_join(const std::string& hostname, const std::string& chan_name, const std::string nick);
/**
* Send the topic of the MUC to the user
*/
void send_topic(const std::string& hostname, const std::string& chan_name, const std::string topic);
/**
* Send a MUC message from some participant
*/
void send_muc_message(const Iid& iid, const std::string& nick, const std::string& body);
private:
/**
* Returns the client for the given hostname, create one (and use the
* username in this case) if none is found, and connect that newly-created
* client immediately.
*/
IrcClient* get_irc_client(const std::string& hostname, const std::string& username);
/**
* This version does not create the IrcClient if it does not exist, and
* returns nullptr in that case
*/
IrcClient* get_irc_client(const std::string& hostname);
/**
* The JID of the user associated with this bridge. Messages from/to this
* JID are only managed by this bridge.
*/
std::string user_jid;
/**
* One IrcClient for each IRC server we need to be connected to.
* The pointer is shared by the bridge and the poller.
*/
std::unordered_map<std::string, std::shared_ptr<IrcClient>> irc_clients;
/**
* A raw pointer, because we do not own it, the XMPP component owns us,
* but we still need to communicate with it, when sending messages from
* IRC to XMPP.
*/
XmppComponent* xmpp;
/**
* Poller, to give it the IrcClients that we spawn, to make it manage
* their sockets.
* We don't own it.
*/
Poller* poller;
Bridge(const Bridge&) = delete;
Bridge(Bridge&& other) = delete;
Bridge& operator=(const Bridge&) = delete;
Bridge& operator=(Bridge&&) = delete;
};
#endif // BRIDGE_INCLUDED
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