1 files changed, 47 insertions, 0 deletions
diff --git a/source/src/wanda/command.cpp b/source/src/wanda/command.cpp
new file mode 100644
index 0000000..960c52b
--- /dev/null
+++ b/source/src/wanda/command.cpp
@@ -0,0 +1,47 @@
+#include <wanda/command.hpp>
+
+namespace wanda
+{
+  std::optional<message> command::message() const
+  {
+    using namespace std::string_literals;
+    auto const command = [this] {
+      switch (id)
+      {
+        case command_id::change:
+          return "CHANGE"s;
+        default:
+          return ""s;
+      }
+    }();
+
+    auto argument_string = std::string{};
+    for (int index = 0ul; index < arguments.size(); ++index)
+    {
+      argument_string += (index) ? "," + arguments[index] : arguments[index];
+    }
+
+    if (command.empty())
+    {
+      return std::nullopt;
+    }
+
+    return wanda::message{"C", command, argument_string};
+  }
+
+  std::optional<command> make_command(message message)
+  {
+    if (message.command == "CHANGE")
+    {
+      return {{command_id::change}};
+    }
+
+    return std::nullopt;
+  }
+
+  command make_change_command()
+  {
+    return {command_id::change};
+  }
+
+}  // namespace wanda
+\ No newline at end of file