refactor gridsearch to have only one go method

src/Platform/GridSearch.h

@@ -6,6 +6,7 @@
 #include "Datasets.h"
 #include "HyperParameters.h"
 #include "GridData.h"
+#include "Timer.h"
 
 namespace platform {
     using json = nlohmann::json;
@@ -13,6 +14,7 @@ namespace platform {
         std::string model;
         std::string score;
         std::string continue_from;
+        std::string platform;
         bool quiet;
         bool only; // used with continue_from to only compute that dataset
         bool discretize;
@@ -24,16 +26,18 @@ namespace platform {
     class GridSearch {
     public:
         explicit GridSearch(struct ConfigGrid& config);
-        void goSingle();
-        void goNested();
+        void go();
         ~GridSearch() = default;
         json getResults();
+        static inline std::string NO_CONTINUE() { return "NO_CONTINUE"; }
     private:
-        void save(json& results) const;
+        void save(json& results);
         json initializeResults();
         vector<std::string> processDatasets(Datasets& datasets);
-        double processFileSingle(std::string fileName, Datasets& datasets, HyperParameters& hyperparameters);
+        pair<double, json> processFileSingle(std::string fileName, Datasets& datasets, std::vector<json>& combinations);
+        pair<double, json> processFileNested(std::string fileName, Datasets& datasets, std::vector<json>& combinations);
         struct ConfigGrid config;
+        Timer timer; // used to measure the time of the whole process
     };
 } /* namespace platform */
 #endif /* GRIDSEARCH_H */