Added auto serialization for Bind and Roster

library/include/larra/client/client.hpp

@@ -97,7 +97,7 @@ struct Client {
 
   auto UpdateListOfContacts() -> boost::asio::awaitable<void> {
     SPDLOG_INFO("Send IQ: Get::Roster");
-    co_await this->Send(::iq::GetRoster{.id = "1", .from = std::format("{}@{}", "invalid_user", jid.server), .payload = {}});
+    co_await this->Send(::iq::GetRoster{.id = "1", .from = jid, .payload = {}});
 
     const auto get_roster_response = co_await connection.template Read<Iq<::iq::Roster>>();
     std::visit(utempl::Overloaded(

library/include/larra/iq.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <larra/jid.hpp>
 #include <larra/serialization.hpp>
 #include <larra/stream_error.hpp>
 #include <larra/utils.hpp>
@@ -12,8 +13,8 @@ namespace iq {
 template <auto& Name, typename PayloadType>
 struct BaseImplWithPayload {
   std::string id;
-  std::optional<std::string> from{};
+  std::optional<Jid> from{};
-  std::optional<std::string> to{};
+  std::optional<Jid> to{};
   PayloadType payload;
   static const inline std::string kName = Name;
   static constexpr auto kDefaultName = "iq";
@@ -38,10 +39,10 @@ struct BaseImplWithPayload {
     element->set_attribute("id", self.id);
 
     if(self.to) {
-      element->set_attribute("to", *self.to);
+      element->set_attribute("to", ToString(*self.to));
     }
     if(self.from) {
-      element->set_attribute("from", *self.from);
+      element->set_attribute("from", ToString(*self.from));
     }
     element->set_attribute("type", kName);
     using S = Serialization<PayloadType>;
@@ -86,8 +87,8 @@ struct BaseImplWithPayload {
       throw std::runtime_error("Invalid payload for parse Iq");
     }
     return {.id = idNode->get_value(),
-            .from = (from ? std::optional{from->get_value()} : std::nullopt),
+            .from = (from ? std::optional{BareJid::Parse(from->get_value())} : std::nullopt),
-            .to = (to ? std::optional{to->get_value()} : std::nullopt),
+            .to = (to ? std::optional{BareJid::Parse(to->get_value())} : std::nullopt),
             .payload = S::Parse(payload2)};
   }
 };

library/include/larra/roster.hpp

@@ -4,6 +4,7 @@
 
 #include <larra/iq.hpp>
 #include <larra/jid.hpp>
+#include <larra/serialization/auto.hpp>
 #include <larra/utils.hpp>
 #include <ranges>
 #include <string>
@@ -11,18 +12,28 @@
 
 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 constexpr auto operator<<(xmlpp::Element* element, const RosterItem& item);
+  [[nodiscard]] static constexpr auto Parse(xmlpp::Element* element) -> RosterItem;
+};
+
 struct Roster {
   static constexpr auto kDefaultName = "query";
   static constexpr auto kDefaultNamespace = "jabber:iq:roster";
 
-  std::vector<BareJid> items;
+  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) + 3;
+                                                        return larra::xmpp::utils::AccumulateFieldLength(el.jid) + 3;
                                                       }),
                                                       prefix.length() + suffix.length(),
                                                       std::plus<>{});
@@ -36,33 +47,8 @@ struct Roster {
     }
     return s += suffix;
   }
-  friend constexpr auto operator<<(xmlpp::Element* element, const Roster& roster) {
+  friend constexpr auto operator<<(xmlpp::Element* element, const Roster& roster);
-    element->set_attribute("xmlns", Roster::kDefaultNamespace);
+  [[nodiscard]] static constexpr auto Parse(xmlpp::Element* element) -> Roster;
-    for(const auto& item : roster.items) {
-      element->add_child_element("item")->set_attribute("jid", ToString(item));
-    }
-  }
-  [[nodiscard]] static constexpr auto Parse(xmlpp::Element* element) -> Roster {
-    const auto& item_nodes = element->get_children("item");
-    if(item_nodes.empty()) {
-      SPDLOG_DEBUG("No items at Iq::Roster");
-    }
-
-    return {.items = item_nodes | std::views::transform([](const xmlpp::Node* node) {
-                       auto item_element = dynamic_cast<const xmlpp::Element*>(node);
-                       if(!item_element) {
-                         throw std::runtime_error("Can't convert xmlpp::Node to xmlpp::Element");
-                       }
-
-                       auto jid_ptr = item_element->get_attribute("jid");
-                       if(!jid_ptr) {
-                         throw std::runtime_error("Not found attribute 'jid' for parse Roster item");
-                       }
-
-                       return BareJid::Parse(jid_ptr->get_value());
-                     }) |
-                     std::ranges::to<std::vector<BareJid>>()};
-  }
 };
 
 using GetRoster = Get<Roster>;
@@ -70,3 +56,31 @@ using ResultRoster = Result<Roster>;
 using IqRoster = Iq<Roster>;
 
 }  // namespace larra::xmpp::iq
+
+namespace larra::xmpp::serialization {
+namespace iq = larra::xmpp::iq;
+
+template <>
+constexpr auto kSerializationConfig<iq::RosterItem> = SerializationConfig<iq::RosterItem>{};
+template <>
+constexpr auto kSerializationConfig<iq::Roster> = SerializationConfig<iq::Roster>{}.With<"items">({Config<std::vector<iq::RosterItem>>{}});
+}  // namespace larra::xmpp::serialization
+
+namespace larra::xmpp::iq {
+namespace S = larra::xmpp::serialization;
+
+constexpr auto operator<<(xmlpp::Element* element, const RosterItem& self) {
+  S::Serialize(element, self);
+}
+constexpr auto RosterItem::Parse(xmlpp::Element* element) -> RosterItem {
+  return S::Parse<RosterItem>(element);
+}
+
+constexpr auto operator<<(xmlpp::Element* element, const Roster& self) {
+  element->set_attribute("xmlns", Roster::kDefaultNamespace);
+  S::Serialize(element, self);
+}
+constexpr auto Roster::Parse(xmlpp::Element* element) -> Roster {
+  return S::Parse<Roster>(element);
+}
+}  // namespace larra::xmpp::iq

library/include/larra/serialization/auto.hpp

@@ -115,7 +115,7 @@ struct Config : V {
     requires(!HasParse<T>)
       : V(AttributeConfig{}) {
   }
-  constexpr auto Base() const -> const V& {
+  [[nodiscard]] constexpr auto Base() const -> const V& {
     return static_cast<const V&>(*this);
   }
   using type = T;

tests/roster.cpp

@@ -7,7 +7,7 @@ namespace larra::xmpp {
 
 TEST(Roster, SerializeAndParse) {
   FullJid jid{.username = "test", .server = "server", .resource = "res"};  // NOLINT
-  auto roster = iq::GetRoster{.id = "1", .from = ToString(jid), .payload = iq::Roster{.items = {{"u1", "s1"}, {"u2", "s2"}, {"u3", "s3"}}}};
+  auto roster = iq::GetRoster{.id = "1", .from = jid, .payload = iq::Roster{.items = {{"u1", "s1"}, {"u2", "s2"}, {"u3", "s3"}}}};
 
   xmlpp::Document doc;
   auto node = doc.create_root_node("iq");
@@ -24,7 +24,7 @@ TEST(Roster, SerializeAndParse) {
 static constexpr std::string_view kRosterPrintExpectedData = "Roster: [\n\tu1@s1\n\tu2@s2\n\tu3@s3\n\t]";
 TEST(Roster, Print) {
   FullJid jid{.username = "test", .server = "server", .resource = "res"};  // NOLINT
-  auto roster = iq::GetRoster{.id = "1", .from = ToString(jid), .payload = iq::Roster{.items = {{"u1", "s1"}, {"u2", "s2"}, {"u3", "s3"}}}};
+  auto roster = iq::GetRoster{.id = "1", .from = jid, .payload = iq::Roster{.items = {{"u1", "s1"}, {"u2", "s2"}, {"u3", "s3"}}}};
 
   EXPECT_NO_THROW({
     auto roster_str = ToString(roster.payload);