First working version of priority handling

include/gamedetails.h

@@ -21,10 +21,12 @@ class gameDetails
         std::string gamename;
         std::string title;
         std::string icon;;
+        void filterWithPriorities(const Config& config);
         void makeFilepaths(const Config& config);
         Json::Value getDetailsAsJson();
         virtual ~gameDetails();
     protected:
+        void filterListWithPriorities(std::vector<gameFile>& list, const Config& config);
     private:
 };
 

include/gamefile.h

@@ -19,6 +19,7 @@ class gameFile
         std::string size;
         unsigned int platform;
         unsigned int language;
+        int score;
         int silent;
         void setFilepath(const std::string& path);
         std::string getFilepath();

src/api.cpp

@@ -518,9 +518,9 @@ gameDetails API::getGameDetails(const std::string& game_name, const unsigned int
 
                     if (!langpacknames.empty()) // found at least one language pack
                     {
-                        for (unsigned int i = 0; i < langpacknames.size(); ++i)
+                        for (unsigned int j = 0; j < langpacknames.size(); ++j)
                         {
-                            Json::Value langpack = root["game"][langpacknames[i]];
+                            Json::Value langpack = root["game"][langpacknames[j]];
                             game.languagepacks.push_back(
                                                         gameFile(   false, /* language packs don't have "updated" flag */
                                                                     langpack["id"].isInt() ? std::to_string(langpack["id"].asInt()) : langpack["id"].asString(),

src/downloader.cpp

@@ -252,6 +252,8 @@ int Downloader::getGameDetails()
         game = gogAPI->getGameDetails(gameItems[i].name, conf.iInstallerType, conf.iInstallerLanguage, config.bDuplicateHandler);
         if (!gogAPI->getError())
         {
+            game.filterWithPriorities(config);
+
             if (game.extras.empty() && config.bExtras) // Try to get extras from account page if API didn't return any extras
             {
                 game.extras = this->getExtras(gameItems[i].name, gameItems[i].id);
@@ -262,6 +264,7 @@ int Downloader::getGameDetails()
                 {
                     gameDetails dlc;
                     dlc = gogAPI->getGameDetails(gameItems[i].dlcnames[j], conf.iInstallerType, conf.iInstallerLanguage, config.bDuplicateHandler);
+                    dlc.filterWithPriorities(config);
                     if (dlc.extras.empty() && config.bExtras) // Try to get extras from account page if API didn't return any extras
                     {
                         dlc.extras = this->getExtras(gameItems[i].dlcnames[j], gameItems[i].id);
@@ -2817,7 +2820,10 @@ std::vector<gameDetails> Downloader::getGameDetailsFromJsonNode(Json::Value root
             }
         }
         if (!game.extras.empty() || !game.installers.empty() || !game.patches.empty() || !game.languagepacks.empty() || !game.dlcs.empty())
-            details.push_back(game);
+            {
+                game.filterWithPriorities(config);
+                details.push_back(game);
+            }
     }
     return details;
 }
@@ -2840,6 +2846,8 @@ void Downloader::updateCache()
     config.sGameRegex = ".*";
     config.iInstallerLanguage = all_languages;
     config.iInstallerType = all_platforms;
+    config.vLanguagePriority.clear();
+    config.vPlatformPriority.clear();
 
     this->getGameList();
     this->getGameDetails();

src/gamedetails.cpp

@@ -11,6 +11,61 @@ gameDetails::~gameDetails()
     //dtor
 }
 
+void gameDetails::filterWithPriorities(const Config& config)
+{
+    if (config.vPlatformPriority.empty() && config.vLanguagePriority.empty())
+        return;
+
+    filterListWithPriorities(installers, config);
+    filterListWithPriorities(patches, config);
+    filterListWithPriorities(languagepacks, config);
+}
+
+void gameDetails::filterListWithPriorities(std::vector<gameFile>& list, const Config& config)
+{
+    /*
+      Compute the score of each item - we use a scoring mechanism and we keep all ties
+      Like if someone asked French then English and Linux then Windows, but there are
+      only Windows French, Windows English and Linux English versions, we'll get the
+      Windows French and Linux English ones.
+      Score is inverted: lower is better.
+    */
+    int bestscore = -1;
+
+    for (std::vector<gameFile>::iterator fileDetails = list.begin(); fileDetails != list.end(); fileDetails++)
+        {
+            fileDetails->score = 0;
+            if (!config.vPlatformPriority.empty())
+                {
+                    for (size_t i = 0; i != config.vPlatformPriority.size(); i++)
+                        if (fileDetails->platform & config.vPlatformPriority[i])
+                            {
+                                fileDetails->score += i;
+                                break;
+                            }
+                }
+            if (!config.vLanguagePriority.empty())
+                {
+                    for (size_t i = 0; i != config.vLanguagePriority.size(); i++)
+                        if (fileDetails->language & config.vLanguagePriority[i])
+                            {
+                                fileDetails->score += i;
+                                break;
+                            }
+                }
+            if ((fileDetails->score < bestscore) or (bestscore < 0))
+                bestscore = fileDetails->score;
+        }
+
+    for (std::vector<gameFile>::iterator fileDetails = list.begin(); fileDetails != list.end(); )
+        {
+            if (fileDetails->score > bestscore)
+                fileDetails = list.erase(fileDetails);
+            else
+                fileDetails++;
+        }
+}
+
 void gameDetails::makeFilepaths(const Config& config)
 {
     std::string filepath;