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construct/include/ircd/m/room/room.h
2019-03-30 18:15:07 -07:00

121 lines
4.4 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_M_ROOM_ROOM_H
/// Interface to a room.
///
/// This is a lightweight object which uses a room_id and an optional event_id
/// to provide an interface to a matrix room. This object itself isn't the
/// actual room data since that takes the form of events in the database;
/// this is just a handle with aforementioned string_view's used by its member
/// functions.
///
/// This object allows the programmer to represent the room either at its
/// present state, or if an event_id is given, at the point of that event.
///
/// Many convenience functions are provided outside of this class.
/// Additionally, several sub-classes provide functionality even more specific
/// than this interface too. If a subclass is provided, for example:
/// `struct members`, such an interface may employ optimized tactics for its
/// specific task.
///
struct ircd::m::room
{
struct messages;
struct state;
struct members;
struct origins;
struct head;
struct auth;
struct power;
struct aliases;
struct stats;
using id = m::id::room;
using alias = m::id::room_alias;
using closure = std::function<void (const room &)>;
using closure_bool = std::function<bool (const room &)>;
id room_id;
event::id event_id;
const vm::copts *copts {nullptr};
const event::fetch::opts *fopts {nullptr};
operator const id &() const;
// Convenience passthru to room::messages (linear query; newest first)
bool for_each(const string_view &type, const event::closure_idx_bool &) const;
void for_each(const string_view &type, const event::closure_idx &) const;
bool for_each(const string_view &type, const event::id::closure_bool &) const;
void for_each(const string_view &type, const event::id::closure &) const;
bool for_each(const string_view &type, const event::closure_bool &) const;
void for_each(const string_view &type, const event::closure &) const;
bool for_each(const event::closure_idx_bool &) const;
void for_each(const event::closure_idx &) const;
bool for_each(const event::id::closure_bool &) const;
void for_each(const event::id::closure &) const;
bool for_each(const event::closure_bool &) const;
void for_each(const event::closure &) const;
// Convenience passthru to room::state (logarithmic query)
bool has(const string_view &type, const string_view &state_key) const;
bool get(std::nothrow_t, const string_view &type, const string_view &state_key, const event::closure &) const;
void get(const string_view &type, const string_view &state_key, const event::closure &) const;
event::idx get(std::nothrow_t, const string_view &type, const string_view &state_key) const;
event::idx get(const string_view &type, const string_view &state_key) const;
// Convenience passthru to room::messages (linear query)
bool has(const string_view &type) const;
bool get(std::nothrow_t, const string_view &type, const event::closure &) const;
void get(const string_view &type, const event::closure &) const;
// misc / convenience utils
bool membership(const m::id::user &, const string_view &membership = "join") const;
string_view membership(const mutable_buffer &out, const m::id::user &) const;
bool visible(const string_view &mxid, const m::event *const & = nullptr) const;
string_view join_rule(const mutable_buffer &out) const;
bool join_rule(const string_view &rule) const;
bool lonly() const;
room(const id &room_id,
const string_view &event_id,
const vm::copts *const &copts = nullptr,
const event::fetch::opts *const &fopts = nullptr)
:room_id{room_id}
,event_id{event_id? event::id{event_id} : event::id{}}
,copts{copts}
,fopts{fopts}
{}
room(const id &room_id,
const vm::copts *const &copts = nullptr,
const event::fetch::opts *const &fopts = nullptr)
:room_id{room_id}
,copts{copts}
,fopts{fopts}
{}
room() = default;
// Index of create event
static event::idx index(const id &, std::nothrow_t);
static event::idx index(const id &);
static size_t purge(const room &); // cuidado!
};
inline ircd::m::room::operator
const ircd::m::room::id &()
const
{
return room_id;
}