Added functionality to check if the song already exists when uploading

include/controller/SongController.hpp

@@ -27,6 +27,7 @@
 #include "model/Models.h"
 #include "type/Scopes.h"
 #include "type/SongFilter.h"
+#include "type/SongUpload.h"
 
 namespace fs = std::filesystem;
 
@@ -74,7 +75,16 @@ public:
         sng.data = std::move(data);
     
         manager::SongManager songMgr(m_bConf);
-        songMgr.saveSong(sng);
+        const auto result =  songMgr.saveSong(sng);
+        if (!result.first) {
+            switch (result.second) {
+                case type::SongUpload::AlreadyExist:
+                    return createResponse(Status::CODE_400, "Song already exists");
+                default:
+                    break;
+            }
+        }
+
         auto songDto = dto::conversion::DtoConversions::toSongDto(sng);
 
         return createDtoResponse(Status::CODE_200, songDto);

include/manager/SongManager.h

@@ -4,12 +4,14 @@
 #include <iostream>
 #include <map>
 #include <string>
+#include <utility>
 
 #include <nlohmann/json.hpp>
 
 #include "dto/SongDto.hpp"
 #include "model/Models.h"
 #include "type/SongChanged.h"
+#include "type/SongUpload.h"
 
 namespace manager {
     class SongManager
@@ -17,14 +19,13 @@ namespace manager {
     public:
         SongManager(const model::BinaryPath&);
 
+        std::pair<bool, type::SongUpload> saveSong(model::Song&);
 
         bool didSongChange(const model::Song&, const model::Song&);
         bool requiresFilesystemChange(const model::Song&, const model::Song&);
         bool deleteSong(model::Song&);
         bool updateSong(model::Song&);
 
-        void saveSong(model::Song&);
-
         static void printSong(const model::Song&);
     private:
         std::map<type::SongChanged, bool> changesInSong(const model::Song&, const model::Song&);

include/type/SongUpload.h

@@ -0,0 +1,14 @@
+#ifndef SONGUPLOAD_H_
+#define SONGUPLOAD_H_
+
+namespace type
+{
+    enum class SongUpload
+    {
+        Successful = 0,
+        AlreadyExist = 1,
+        Failed = 2
+    };
+}
+
+#endif