Added error handling

source/business_logic/controller/api/meme_api/meme_api_controller.cpp

@@ -41,11 +41,14 @@ AMeme_API_Controller::~AMeme_API_Controller()
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
-std::string AMeme_API_Controller::Get_Meme()
+std::optional<std::string> AMeme_API_Controller::Get_Meme()
 {
     if (Meme_Links_Stack.empty())
     {
-        Send_Request("GET");
+        if (!Send_Request("GET"))
+        {
+            return std::nullopt;
+        }
 
         for (std::size_t i{}; !Json_Response.empty() && i < 12; ++i) // 12 - default count of meme links
         {

source/business_logic/controller/api/meme_api/meme_api_controller.hpp

@@ -27,6 +27,7 @@
 #include <stack>
 #include <vector>
 #include <string>
+#include <optional>
 
 #include <controller/api/base_api/base_api_controller.hpp>
 
@@ -38,7 +39,7 @@ class AMeme_API_Controller : public ABase_API_Controller
     explicit AMeme_API_Controller(const AMeme_API_Config& meme_api_config);
     ~AMeme_API_Controller() override;
 
-    std::string Get_Meme();
+    std::optional<std::string> Get_Meme();
 
 private:
     bool Send_Request(std::string_view request_type);

source/view/handlers/message_handler/message_handler.cpp

@@ -178,7 +178,13 @@ void AMessage_Handler::Bind_Commands()
         std::lock_guard<std::mutex> locker(Mutex);
         ++Metrics.Meme_Request_Count;
 
-        TG_Bot.getApi().sendMessage(message->chat->id, Meme_API_Controller.Get_Meme());
+        if (auto meme{ Meme_API_Controller.Get_Meme() }; meme != std::nullopt)
+        {
+            TG_Bot.getApi().sendMessage(message->chat->id, meme.value());
+            return;
+        }
+
+        TG_Bot.getApi().sendMessage(message->chat->id, AMessage_Reply::Get_Server_Internal_Error());
     });
     TG_Bot.getEvents().onCommand(SMessage_Commands::Metrics_Range.data(), [this](TgBot::Message::Ptr message) -> void
     {

source/view/texts/message_reply/message_reply.cpp

@@ -129,4 +129,10 @@ std::string AMessage_Reply::Get_Synonym_Msg(std::string_view primary_word, std::
 std::string AMessage_Reply::Get_Not_Found_Synonym_Msg()
 {
     return std::string{ "Мені не вдалося знайти синонім до твого слова) " };
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+std::string AMessage_Reply::Get_Server_Internal_Error()
+{
+    return std::string{ "Сталася помилка на стороні сервера!" };
 }

source/view/texts/message_reply/message_reply.hpp

@@ -59,4 +59,5 @@ class AMessage_Reply
     static std::string Get_Not_Found_Antonym_Msg();
     static std::string Get_Synonym_Msg(std::string_view primary_word, std::string_view synonym);
     static std::string Get_Not_Found_Synonym_Msg();
+    static std::string Get_Server_Internal_Error();
 };