declare packets + commands

include/td/misc/Format.h

@@ -0,0 +1,38 @@
+#pragma once
+
+/**
+ * \file Format.h
+ * \brief This file contains the definition of the `Format` function.
+ */
+
+#include <memory>
+#include <stdexcept>
+#include <string>
+
+namespace td {
+namespace utils {
+
+/**
+ * \brief Formats a string using a format string and variadic arguments.
+ *
+ * This function takes a format string and a variable number of arguments and returns a formatted string.
+ * The format string can contain placeholders that will be replaced by the corresponding arguments.
+ *
+ * \param format The format string.
+ * \param args The variadic arguments to be formatted.
+ * \return The formatted string.
+ * \throws std::runtime_error if an error occurs during formatting.
+ */
+template <typename... Args>
+std::string Format(const std::string& format, Args... args) {
+	int size = snprintf(nullptr, 0, format.c_str(), args...) + 1;  // Extra space for '\0'
+	if (size <= 0) {
+		throw std::runtime_error("Error during formatting.");
+	}
+	std::unique_ptr<char[]> buf(new char[size]);
+	snprintf(buf.get(), static_cast<std::size_t>(size), format.c_str(), args...);
+	return std::string(buf.get(), buf.get() + size - 1);  // We don't want the '\0' inside
+}
+
+}  // namespace utils
+}  // namespace td

include/td/misc/Log.h

@@ -0,0 +1,32 @@
+#pragma once
+
+/**
+ * \file Log.h
+ * \brief File defining log functions
+ */
+
+#include <string>
+
+namespace td {
+namespace utils {
+
+/**
+ * \brief Logs a normal message.
+ * \param msg The message to be logged.
+ */
+void LOG(const std::string& msg);
+
+/**
+ * \brief Logs a normal message in debug mode.
+ * \param msg The message to be logged.
+ */
+void LOGD(const std::string& msg);
+
+/**
+ * \brief Logs an error message.
+ * \param err The error message to be logged.
+ */
+void LOGE(const std::string& err);
+
+}  // namespace utils
+}  // namespace td