add todos

include/services/todoAdapter.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+struct TodoRecord {
+    int id;
+    std::string text;
+};
+
+class ITodoAdapter {
+  public:
+    virtual ~ITodoAdapter() = default;
+
+    virtual bool init() = 0;
+    virtual std::vector<TodoRecord> listTodos() = 0;
+
+    virtual int addTodo(const std::string &text) = 0;
+    virtual bool removeTodo(int id) = 0;
+    virtual bool updateTodo(int id, const std::string &text) = 0;
+};