mirror of
https://github.com/matrix-construct/construct
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110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_M_ROOMS_H
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/// Convenience iterface for rooms; utilities for the server's collection of
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/// rooms and some rooms list related linkages.
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///
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namespace ircd::m::rooms
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{
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struct each_opts;
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bool is_public(const room::id &);
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size_t count_public(const string_view &server = {});
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bool for_each(const each_opts &);
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template<class... args> bool for_each(args&&...);
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// Linkage to utils that build a publicrooms summary from room state.
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void summary_chunk(const m::room &, json::stack::object &chunk);
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json::object summary_chunk(const m::room &, const mutable_buffer &out);
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event::id::buf summary_set(const m::room::id &, const json::object &summary);
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event::id::buf summary_set(const m::room &);
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event::id::buf summary_del(const m::room &);
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}
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/// Arguments structure to rooms::for_each(). This reduces the API surface to
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/// handle a rich set of ways to iterate over the rooms. Several convenience
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/// constructors based on common usage are provided; note that these are not
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/// the only options patterns.
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struct ircd::m::rooms::each_opts
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{
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/// If set: select rooms for this user.
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m::user user;
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/// If user is set, and this is set: select the membership that user
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/// has in the room.
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string_view membership;
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/// If set, seek to this room_id or lower-bound to the closest room_id.
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string_view key;
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/// All public rooms only; key may be a server hostname or room_id.
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/// - for server hostname: iterates known rooms from that server.
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/// - for room_id: starts iteration from that (or closest) room_id
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/// which can be used as a since/pagination token.
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bool public_rooms {false};
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/// Principal closure for results; invoked synchronously during the call;
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/// for-each protocol: return true to continue, false to break.
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room::id::closure_bool closure;
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/// Alternative closure when selecting a user.
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user::rooms::closure_bool user_closure;
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each_opts(room::id::closure_bool);
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each_opts(const string_view &key, room::id::closure_bool);
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each_opts(const m::user &user, user::rooms::closure_bool);
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each_opts(const m::user &user, const string_view &membership, user::rooms::closure_bool);
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each_opts() = default;
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};
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inline
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ircd::m::rooms::each_opts::each_opts(room::id::closure_bool closure)
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:closure{std::move(closure)}
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{}
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inline
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ircd::m::rooms::each_opts::each_opts(const string_view &key,
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room::id::closure_bool closure)
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:key{key}
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,closure{std::move(closure)}
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{}
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inline
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ircd::m::rooms::each_opts::each_opts(const m::user &user,
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user::rooms::closure_bool user_closure)
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:user{user}
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,user_closure{std::move(user_closure)}
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{}
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inline
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ircd::m::rooms::each_opts::each_opts(const m::user &user,
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const string_view &membership,
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user::rooms::closure_bool user_closure)
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:user{user}
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,membership{membership}
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,user_closure{std::move(user_closure)}
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{}
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template<class... args>
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bool
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ircd::m::rooms::for_each(args&&... a)
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{
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const each_opts opts
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{
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std::forward<args>(a)...
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};
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return for_each(opts);
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}
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