larra/library/include/larra/roster.hpp
Ivan-lis c52d237dc4
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Feature: iq::Roster
2024-11-25 13:20:32 +00:00

56 lines
1.8 KiB
C++

#pragma once
#include <libxml++/libxml++.h>
#include <spdlog/spdlog.h>
#include <larra/iq.hpp>
#include <larra/jid.hpp>
#include <larra/utils.hpp>
#include <ranges>
#include <string>
#include <vector>
namespace larra::xmpp::iq {
struct RosterItem {
BareJid jid;
friend constexpr auto ToString(const RosterItem& item) {
return ToString(item.jid);
}
constexpr auto operator==(const RosterItem&) const -> bool = default;
friend auto operator<<(xmlpp::Element* element, const RosterItem& item) -> void;
[[nodiscard]] static auto Parse(xmlpp::Element* element) -> RosterItem;
};
struct Roster {
static constexpr auto kDefaultName = "query";
static constexpr auto kDefaultNamespace = "jabber:iq:roster";
std::vector<RosterItem> items;
friend auto ToString(const Roster& roster) -> std::string {
static constexpr std::string_view prefix = "Roster: [\n\t";
static constexpr std::string_view suffix = "]";
// \n\r\t
std::size_t total_length = std::ranges::fold_left(roster.items | std::views::transform([](const auto& el) {
return larra::xmpp::utils::AccumulateFieldLength(el.jid) + 3;
}),
prefix.length() + suffix.length(),
std::plus<>{});
std::string s;
s.resize(total_length);
s = prefix;
for(const auto& el : roster.items) {
s += ToString(el);
s += "\n\t";
}
return s += suffix;
}
friend auto operator<<(xmlpp::Element* element, const Roster& roster) -> void;
[[nodiscard]] static auto Parse(xmlpp::Element* element) -> Roster;
};
using GetRoster = Get<Roster>;
using ResultRoster = Result<Roster>;
} // namespace larra::xmpp::iq