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construct/include/ircd/m/relates.h

109 lines
2.7 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_RELATES_H
namespace ircd::m
{
struct relates;
struct relates_to;
}
struct ircd::m::relates_to
:json::tuple
<
/// Target event_id
json::property<name::event_id, json::string>,
/// m.in_reply_to object
json::property<name::m_in_reply_to, json::object>,
/// Relation type
json::property<name::rel_type, json::string>
>
{
using super_type::tuple;
using super_type::operator=;
};
/// Interface to the rel_type of the M_RELATES dbs::ref type
///
struct ircd::m::relates
{
using closure = util::function_bool
<
const event::idx &, const json::object &, const m::relates_to &
>;
event::refs refs;
bool match_sender {false};
bool prefetch_depth {false};
bool prefetch_sender {false};
private:
bool _each(const string_view &, const closure &, const event::idx &) const;
public:
bool for_each(const string_view &type, const closure &) const;
bool for_each(const closure &) const;
bool rfor_each(const string_view &type, const closure &) const;
bool rfor_each(const closure &) const;
event::idx get(const string_view &type, const uint at = 0) const;
event::idx latest(const string_view &type, uint *const at = nullptr) const;
bool has(const string_view &type, const event::idx &) const;
bool has(const string_view &type) const;
bool has(const event::idx &) const;
size_t count(const string_view &type = {}) const;
bool prefetch(const string_view &type = {}) const;
};
inline bool
ircd::m::relates::rfor_each(const closure &closure)
const
{
return rfor_each(string_view{}, closure);
}
inline bool
ircd::m::relates::rfor_each(const string_view &rel_type,
const closure &closure)
const
{
return refs.rfor_each(dbs::ref::M_RELATES, [this, &rel_type, &closure]
(const auto &event_idx, const auto &type)
{
return _each(rel_type, closure, event_idx);
});
}
inline bool
ircd::m::relates::for_each(const closure &closure)
const
{
return for_each(string_view{}, closure);
}
inline bool
ircd::m::relates::for_each(const string_view &rel_type,
const closure &closure)
const
{
return refs.for_each(dbs::ref::M_RELATES, [this, &rel_type, &closure]
(const auto &event_idx, const auto &type)
{
return _each(rel_type, closure, event_idx);
});
}