refactor: concentrating repo functions into repo class

components/spit/include/SpitRepo.hpp

@@ -0,0 +1,64 @@
+#pragma once
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+template <typename T>
+class SpitRepo {
+  public:
+    T *getEntry(const string &id) {
+        auto i = mEntries.find(id);
+        if (i == mEntries.end()) {
+            return nullptr;
+        }
+        return i->second.get();
+    }
+
+    const T &getEntryRef(const string &id) {
+        return *mEntries.at(id);
+    }
+
+    T *getEntry(int index) {
+        if (index >= 0 && index < mEntries.size()) {
+            return next(mEntries.begin(), index)->second.get();
+        }
+        return nullptr;
+    }
+    const T &getEntryRef(int index) {
+        if (index >= 0 && index < mEntries.size()) {
+            auto i = next(mEntries.begin(), index);
+            return *i->second;
+        } else {
+            throw "SPITObject index out of range";
+        }
+    }
+
+    void addEntry(unique_ptr<T> entry) {
+        mEntries[entry->getID()] = move(entry);
+    }
+    bool removeEntry(const T &entry) {
+        return removeEntry(entry.getID());
+    }
+    bool removeEntry(const string &id) {
+        auto i = mEntries.find(id);
+        if (i == mEntries.end()) {
+            return false;
+        }
+        i = mEntries.erase(i);
+        return true;
+    }
+    int getEntryCount() {
+        return mEntries.size();
+    }
+
+    unordered_map<string, unique_ptr<T>> &getRepo() {
+        return mEntries;
+    }
+
+    void clearEntries() {
+        mEntries.clear();
+    }
+
+  private:
+    unordered_map<string, unique_ptr<T>> mEntries;
+};