1 files changed, 54 insertions, 0 deletions
diff --git a/src/utils.h b/src/utils.h
new file mode 100644
index 0000000..f7366dc
--- /dev/null
+++ b/src/utils.h
@@ -0,0 +1,54 @@
+#pragma once
+#include "json.hpp"
+#include <string>
+#include <vector>
+#include <map>
+#include <sstream>
+
+
+namespace utils {
+    nlohmann::json loadJson(const std::string& path);
+
+    void saveJson(const nlohmann::json& data, const std::string& path);
+
+    template<typename Container> std::string join(Container parts, std::string joiner) {
+        std::stringstream out;
+        bool isFirst = true;
+        for(std::string p : parts) {
+            if(! isFirst) {
+                out << joiner;
+            }
+            isFirst = false;
+            out << p;
+        }
+        return out.str();
+    }
+
+    const std::map<std::string, int> cpValue {
+        {"cp", 1},
+            {"sp", 10},
+            {"ep", 50},
+            {"gp", 100},
+            {"pp", 1000}
+    };
+
+    // Accepts coins formatted "X Yp" where X is an integer and Y is any of c, s, e, g, p.
+    int coins2copper(const std::string& coins);
+
+    // Greedily selects highest coin values to minimize total number of coins
+    // Returns a vector of pairs mapping coin type to coint
+    std::vector<std::pair<std::string, int>> copper2coins(int coppers);
+
+    std::string getCostString(int coppers);
+
+    // Recursively loads all .json files under directory
+    /*std::vector<Item> loadAll(std::string directory) {
+      std::vector<Item> items;
+      for(auto path : std::filesystem::recursive_directory_iterator(directory)) {
+      if(path.path().extension() == ".json") {
+      items.push_back(Item::instance(loadJson(path.path())));
+      }
+      }
+      return items;
+      }*/
+}