moving url methods to utility and changing class methods to work with…

… them

include/dpp/utility.h

@@ -531,6 +531,40 @@ namespace dpp {
 		*/
 		std::string DPP_EXPORT role_mention(const snowflake& id);
 
+		/**
+		* @brief Create a URL for message.
+		* @param guild_id The ID of the guild where message is written.
+		* @param channel_id The ID of the channel where message is written.
+		* @param message_id The ID of the message.
+		* @return std::string The URL to message.
+		*/
+		std::string DPP_EXPORT message_url(const snowflake& guild_id, const snowflake& channel_id, const snowflake& message_id);
+
+		/**
+		* @brief Create a URL for message.
+		* @param guild_id The ID of the guild where channel is located.
+		* @param channel_id The ID of the channel.
+		* @return std::string The URL to message.
+		*/
+		std::string DPP_EXPORT channel_url(const snowflake& guild_id, const snowflake& channel_id);
+
+		/**
+		* @brief Create a URL for message.
+		* @param guild_id The ID of the guild where thread is located.
+		* @param thread_id The ID of the thread.
+		* @return std::string The URL to message.
+		*/
+		std::string DPP_EXPORT thread_url(const snowflake& guild_id, const snowflake& thread_id);
+
+		/**
+		* @brief Create a URL for message.
+		* @param user_id The ID of the guild where thread is located.
+		* @return std::string The URL to message.
+		*/
+		std::string DPP_EXPORT user_url(const snowflake& user_id);
+
+
+
 #ifdef _DOXYGEN_
 		/**
 		 * @brief Get the mime type for an image type.

src/dpp/channel.cpp

@@ -637,7 +637,7 @@ std::string channel::get_icon_url(uint16_t size, const image_type format) const
 }
 
 std::string channel::get_url() const{
-	return "https://discord.com/channels/" + std::to_string(guild_id) + "/" + std::to_string(id);
+	return utility::channel_url(guild_id, id);
 }
 
 channel_type channel::get_type() const {

src/dpp/message.cpp

@@ -1127,7 +1127,7 @@ bool message::has_remix_attachment() const {
 }
 
 std::string message::get_url() const {
-	return "https://discord.com/channels/" + std::to_string(guild_id) + "/" + std::to_string(channel_id) + "/" + std::to_string(id);
+	return utility::message_url(guild_id, channel_id, id);
 }
 
 sticker::sticker() : managed(0), pack_id(0), type(st_standard), format_type(sf_png), available(true), guild_id(0), sort_value(0) {

src/dpp/user.cpp

@@ -131,7 +131,7 @@ std::string user::get_mention() const {
 }
 
 std::string user::get_url() const{
-	return "https://discord.com/users/" + std::to_string(id);
+	return utility::user_url(id);
 }
 
 bool user::is_active_developer() const {

src/dpp/utility.cpp

@@ -550,6 +550,22 @@ namespace dpp {
 		    return "<@&" + std::to_string(id) + ">";
 		}
 
+		std::string message_url(const snowflake& guild_id, const snowflake& channel_id, const snowflake& message_id){
+			return "https://discord.com/channels/" + std::to_string(guild_id) + "/" + std::to_string(channel_id) + "/" + std::to_string(message_id);
+		}
+
+		std::string channel_url(const snowflake& guild_id, const snowflake& channel_id){
+			return "https://discord.com/channels/" + std::to_string(guild_id) + "/" + std::to_string(channel_id);
+		}
+
+		std::string thread_url(const snowflake& guild_id, const snowflake& thread_id){
+			return channel_url(guild_id, thread_id);
+		};
+
+		std::string user_url(const snowflake& user_id){
+			return "https://discord.com/users/" + std::to_string(user_id);
+		};
+
 		template <typename T>
 		std::enable_if_t<std::is_same_v<T, image_type>, std::string> mime_type(T type) {
 			static constexpr auto get_image_mime = [](image_type t) constexpr noexcept {