#ifndef INPUT_HH
#define INPUT_HH

#include <stdint.h>
#include <ClanLib/Display/input_device.h>
#include <ClanLib/Display/keys.h>

// const TimeMS INPUT_INTERVAL_MS = 20;

/**
 * The bits used in the PlayerInput bitmask, each represents a separate action handled by LocalPlayer::handleInput.
 *
 * @see LocalPlayer::handleInput
 */
enum PlayerInputBit {
    INPUT_NONE          = 0x0000,

    INPUT_AIM_UP        = 0x0001,
    INPUT_AIM_DOWN      = 0x0002,

    INPUT_MOVE_LEFT     = 0x0004,
    INPUT_MOVE_RIGHT    = 0x0008,

    INPUT_JUMP          = 0x0010,
    INPUT_DIG           = 0x0020,
    INPUT_SHOOT         = 0x0040,
    INPUT_CHANGE_NEXT   = 0x0080,
    INPUT_CHANGE_PREV   = 0x0100,
    INPUT_ROPE          = 0x0200,
    INPUT_UNROPE        = 0x0400,
    INPUT_ROPE_UP       = 0x0800,
    INPUT_ROPE_DOWN     = 0x1000,

    INPUT_SUICIDE       = 0x2000,
};

/**
 * The bits used in the GuiInput bitmask, each represents something handled locally by Graphics.
 */
enum GuiInputBit {
    GUI_INPUT_QUIT              = 0x0001,
    GUI_INPUT_DISPLAY_WEAPON    = 0x0002,
    GUI_INPUT_DEBUG_PLAYER      = 0x0004,
};

/**
 * Bitmask of PlayerInputBits
 *
 * @see PlayerInputBit
 */
typedef uint16_t PlayerInput;

/**
 * Bitmask for GuiInputBits
 *
 * @see GuiInputBit
 */
typedef uint16_t GuiInput;

/**
 * Keymap definition used in Input.cc
 */
template <typename BitEnumType> struct InputKeymapEntry;

/**
 * Handles reading input from a keyboard and mapping it to PlayerInput/GuiInput bitmasks
 */
class Input {
    protected:
        CL_InputDevice &keyboard;

    public:
        Input (CL_InputDevice &keyboard);
    
    private:
        bool checkKeycode (int keycode);
        template <typename BitEnumType, typename BitMaskType> BitMaskType buildMask (InputKeymapEntry<BitEnumType> *keymap);

    public:
        /*
         * Reads the keyboard to determine current state of the Player/Gui input
         */
        PlayerInput readPlayerInput (void);
        GuiInput readGuiInput (void);
};

#endif