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#ifndef ADHOC_COMMANDS_HANDLER_HPP
# define ADHOC_COMMANDS_HANDLER_HPP
/**
* Manage a list of available AdhocCommands and the list of ongoing
* AdhocCommandSessions.
*/
#include <xmpp/adhoc_command.hpp>
#include <xmpp/xmpp_stanza.hpp>
#include <utility>
#include <string>
#include <map>
class AdhocCommandsHandler
{
public:
explicit AdhocCommandsHandler(XmppComponent& xmpp_component):
xmpp_component(xmpp_component),
commands{}
{ }
~AdhocCommandsHandler() = default;
/**
* Returns the list of available commands.
*/
const std::map<const std::string, const AdhocCommand>& get_commands() const;
/**
* This one can be used to add new commands.
*/
std::map<const std::string, const AdhocCommand>& get_commands();
/**
* Find the requested command, create a new session or use an existing
* one, and process the request (provide a new form, an error, or a
* result).
*
* Returns a (moved) XmlNode that will be inserted in the iq response. It
* should be a <command/> node containing one or more useful children. If
* it contains an <error/> node, the iq response will have an error type.
*
* Takes a copy of the <command/> node so we can actually edit it and use
* it as our return value.
*/
XmlNode handle_request(const std::string& executor_jid, const std::string& to, XmlNode command_node);
/**
* Remove the session from the list. This is done to avoid filling the
* memory with waiting session (for example due to a client that starts
* multi-steps command but never finishes them).
*/
void remove_session(const std::string& session_id, const std::string& initiator_jid);
private:
/**
* To access basically anything in the gateway.
*/
XmppComponent& xmpp_component;
/**
* The list of all available commands.
*/
std::map<const std::string, const AdhocCommand> commands;
/**
* The list of all currently on-going commands.
*
* Of the form: {{session_id, owner_jid}, session}.
*/
std::map<std::pair<const std::string, const std::string>, AdhocSession> sessions;
AdhocCommandsHandler(const AdhocCommandsHandler&) = delete;
AdhocCommandsHandler(AdhocCommandsHandler&&) = delete;
AdhocCommandsHandler& operator=(const AdhocCommandsHandler&) = delete;
AdhocCommandsHandler& operator=(AdhocCommandsHandler&&) = delete;
};
#endif // ADHOC_COMMANDS_HANDLER_HPP
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