@@ -0,0 +29,4 @@
+      return {};
+    }
+
+    auto* jid_el = dynamic_cast<const xmlpp::Element*>(jid_node);

@@ -0,0 +48,4 @@
+using IqBind = Iq<Bind>;
+
+inline auto MakeSetBind() {
+  return SetBind{.id = "1", .payload = Bind{}};

@@ -126,2 +146,2 @@
-                    })                                                                                                   //
-                  | std::ranges::to<std::unordered_map<std::string_view, std::string_view>>();
+    auto params = std::views::split(decoded, ',') | std::views::transform([](auto param) {
+                    return std::string_view{param};

@@ -72,0 +55,4 @@
+  std::string username;
+  std::string server;
+  constexpr operator FullJid() const {
+    return FullJid{.username = username, .server = server, .resource = ""};

@@ -0,0 +38,4 @@
+  }
+  friend constexpr auto operator<<(xmlpp::Element* element, const Roster& roster) {
+    element->set_attribute("xmlns", Roster::kDefaultNamespace);
+    std::ranges::for_each(roster.items, [element](const auto& item) {

@@ -0,0 +51,4 @@
+    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");

@@ -0,0 +70,4 @@
+using IqRoster = Iq<Roster>;
+
+inline auto MakeGetRoster(const FullJid& jid) {
+  return GetRoster{.id = "1", .from = ToString(jid), .payload = Roster{}};

@@ -297,1 +297,4 @@
 
+template <typename T>
+concept LengthCalculatable = requires(const T& obj) {
+  { obj.length() } -> std::convertible_to<std::size_t>;  // Checks if obj has a length() method returning a type convertible to std::size_t

@@ -0,0 +10,4 @@
+  FullJid jid{.username = "test", .server = "server", .resource = "res"};  // NOLINT
+  auto roster = iq::MakeGetRoster(jid);
+  roster.payload.items.emplace_back("u1", "s1");
+  roster.payload.items.emplace_back("u2", "s2");

@@ -0,0 +22,4 @@
+  ASSERT_EQ(roster.payload.items.size(), parse_res.payload.items.size());
+  for(const auto& [idx, expect_el, parsed_el] : std::views::zip(std::views::iota(0), roster.payload.items, parse_res.payload.items)) {
+    EXPECT_EQ(expect_el, parsed_el) << "Mismatched on idx: " << idx;
+    // std::cerr << "        " << "idx: " << idx << "; expect_el: " << expect_el << "; parsed_el: " << parsed_el << '\n';

@@ -0,0 +33,4 @@
+  roster.payload.items.emplace_back("u2", "s2");
+  roster.payload.items.emplace_back("u3", "s3");
+
+  EXPECT_NO_THROW({ std::cerr << "[          ] Roster payload: " << ToString(roster.payload) << '\n'; });

@@ -11,6 +12,8 @@ namespace iq {
 template <auto& Name, typename PayloadType>
 struct BaseImplWithPayload {
   std::string id;
+  std::optional<std::string> from{};

@@ -75,0 +95,4 @@
+    co_return;
+  }
+
+  auto UpdateListOfContacts() -> boost::asio::awaitable<void> {

@@ -20,2 +24,4 @@
     return utils::FieldSetHelper::With<"id", BaseImplWithPayload>(std::forward<Self>(self), std::move(id));
   }
+  template <typename Self>
+  [[nodiscard]] constexpr auto To(this Self&& self, std::string to) -> std::decay_t<Self> {

@@ -53,2 +88,3 @@
     }
-    return {.id = idNode->get_value(), .payload = S::Parse(payload2)};
+    return {.id = idNode->get_value(),
+            .from = (from ? std::optional{BareJid::Parse(from->get_value())} : std::nullopt),

@@ -0,0 +32,4 @@
+    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) {

@@ -0,0 +73,4 @@
+  S::Serialize(element, self);
+}
+constexpr auto RosterItem::Parse(xmlpp::Element* element) -> RosterItem {
+  return S::Parse<RosterItem>(element);

@@ -298,0 +302,4 @@
+
+template <typename T>
+auto AccumulateFieldLength(const T& obj) -> std::size_t {
+  std::size_t total_length = 0;

@@ -0,0 +16,4 @@
+  auto parse_res = decltype(roster)::Parse(node);
+
+  ASSERT_EQ(roster.payload.items.size(), parse_res.payload.items.size());
+  for(const auto& [idx, expect_el, parsed_el] : std::views::zip(std::views::iota(0), roster.payload.items, parse_res.payload.items)) {

@@ -7,1 +7,4 @@
 #include <larra/stream_error.hpp>
+#include <variant>
+
+#include "utempl/utils.hpp"