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#ifndef ADHOC_SESSION_HPP
# define ADHOC_SESSION_HPP
#include <xmpp/xmpp_stanza.hpp>
#include <functional>
#include <string>
class AdhocCommand;
class AdhocSession;
/**
* A function executed as an ad-hoc command step. It takes a <command/>
* XmlNode and modifies it accordingly (inserting for example an <error/>
* node, or a data form…).
* TODO fix this:
* It also must call one of step_passed(), cancel() etc on the AdhocSession object.
*/
typedef std::function<void(AdhocSession&, XmlNode&)> AdhocStep;
class AdhocSession
{
public:
explicit AdhocSession(const AdhocCommand& command, const std::string& jid);
~AdhocSession();
/**
* Return the function to be executed, found in our AdhocCommand, for the
* current_step. And increment the current_step.
*/
const AdhocStep& get_next_step();
/**
* Return the number of remaining steps.
*/
size_t remaining_steps() const;
/**
* This may be modified by an AdhocStep, to indicate that this session
* should no longer exist, because we encountered an error, and we can't
* execute any more step of it.
*/
void terminate();
bool is_terminated() const;
private:
/**
* A reference of the command concerned by this session. Used for example
* to get the next step of that command, things like that.
*/
const AdhocCommand& command;
/**
* The full JID of the XMPP user that created this session by executing
* the first step of a command. Only that JID must be allowed to access
* this session.
*/
const std::string& owner_jid;
/**
* The current step we are at. It starts at zero. It is used to index the
* associated AdhocCommand::callbacks vector.
*/
size_t current_step;
bool terminated;
AdhocSession(const AdhocSession&) = delete;
AdhocSession(AdhocSession&&) = delete;
AdhocSession& operator=(const AdhocSession&) = delete;
AdhocSession& operator=(AdhocSession&&) = delete;
};
#endif // ADHOC_SESSION_HPP
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