/**
 * Copyright (c) 2025 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#pragma once
#include "inputbutton.h"
#include "inputaction.h"

typedef struct {
  inputactiondata_t actions[INPUT_ACTION_COUNT];

  #if INPUT_SDL2 == 1
    #if INPUT_KEYBOARD == 1
      const uint8_t *keyboardState;
    #endif
  #endif
} input_t;

extern input_t INPUT;

/**
 * Initialize the input system.
 */
void inputInit(void);

/**
 * Updates the input state.
 */
void inputUpdate(void);

/**
 * Gets the current value of a specific input action.
 * 
 * @param action The input action to get the value for.
 * @return The current value of the action (0.0f to 1.0f).
 */
float_t inputGetCurrentValue(const inputaction_t action);

/**
 * Gets the last value of a specific input action.
 * 
 * @param action The input action to get the value for.
 * @return The last value of the action (0.0f to 1.0f).
 */
float_t inputGetLast(const inputaction_t action);

/**
 * Checks if a specific input action is currently pressed.
 * 
 * @param action The input action to check.
 * @return true if the action is currently pressed, false otherwise.
 */
bool_t inputIsDown(const inputaction_t action);

/**
 * Checks if a specific input action was pressed in the last update.
 * 
 * @param action The input action to check.
 * @return true if the action was pressed in the last update, false otherwise.
 */
bool_t inputWasDown(const inputaction_t action);

/**
 * Checks if a specific input action was down this frame but not in the the
 * previous frame.
 * 
 * @param action The input action to check.
 * @return true if the action is currently pressed, false otherwise.
 */
bool_t inputPressed(const inputaction_t action);

/**
 * Checks if a specific input action was released this frame.
 * 
 * @param action The input action to check.
 * @return true if the action was released this frame, false otherwise.
 */
bool_t inputReleased(const inputaction_t action);

/**
 * Gets the value of an input axis, defined by two actions (negative and
 * positive).
 * 
 * @param neg The action representing the negative direction of the axis.
 * @param pos The action representing the positive direction of the axis.
 * @return The current value of the axis (-1.0f to 1.0f).
 */
float_t inputAxis(const inputaction_t neg, const inputaction_t pos);

/**
 * Binds an input button to an action. Will first check if a matching action
 * exists, otherwise it will be treated as a command.
 * 
 * @param button The input button to bind.
 * @param action The name of the input action or command to bind the button to.
 */
void inputBind(const inputbutton_t data, const char_t *action);