SDL_Minigame/include/InputSystemComponent.h

#pragma once

#include <map>
#include <vector>
#include <functional>

#include "Component.h"
#include "InputComponent.h"
#include "InputAction.h"

class InputSystemComponent : public InputComponent {
public:
    InputSystemComponent() = default;
    ~InputSystemComponent() = default;

    void init() override;
    void update() override;

    // void bindAction(const std::string& actionName, Key key, std::function<void()> callback);

    template<typename... Keys>
    void bindAction(const std::string& actionName, std::function<void()> callback, Keys... keys)
    {
        static_assert((std::is_same<Keys, Key>::value && ...), "A passed argument for 'Keys' is not of type 'Key'");

        if (m_actions.find(actionName) == m_actions.end())
        {
            m_actions[actionName] = InputAction(actionName, callback);
        }
        
        (m_actions[actionName].keys.push_back(keys), ...);
        (m_keyToActionsMap[keys].push_back(m_actions[actionName]), ...);
    }

    void unbindAction(const std::string& actionName, Key key);

private:
    InputComponent* m_inputComponent;
    std::map<Key, std::vector<InputAction>> m_keyToActionsMap;
    std::map<std::string, InputAction> m_actions;

    void handleActions();
};