#include "../libsok/sok.h"
#include "action.h"

#define CASE_DIGIT \
  case SDLK_0: \
  case SDLK_1: \
  case SDLK_2: \
  case SDLK_3: \
  case SDLK_4: \
  case SDLK_5: \
  case SDLK_6: \
  case SDLK_7: \
  case SDLK_8: \
  case SDLK_9:

static const sok_dir_t
keycode_to_dir(const SDL_Keycode code) {
  switch (code) {
  case SDLK_UP:     return SOK_DIR_UP;
  case SDLK_LEFT:   return SOK_DIR_LEFT;
  case SDLK_DOWN:   return SOK_DIR_DOWN;
  case SDLK_RIGHT:  return SOK_DIR_RIGHT;
  default:          return SOK_DIR_LAST;
  }
}

action_t
get_action(
  const SDL_Keycode code
) {
  switch (code) {
  case SDLK_ESCAPE:
  case SDLK_q:
    return (action_t) { .type = ACTION_QUIT };
  case SDLK_UP:
  case SDLK_DOWN:
  case SDLK_LEFT:
  case SDLK_RIGHT:
    return (action_t) {
      .type = ACTION_MOVE,
      .data = keycode_to_dir(code)
    };
  case SDLK_u:
    return (action_t) { .type = ACTION_UNDO };
  case SDLK_n:
    return (action_t) { .type = ACTION_NEXT };
  CASE_DIGIT
    return (action_t) {
      .type = ACTION_WARP_BUF_PUSH,
      .data = (code - SDLK_0),
    };
  case SDLK_DELETE:
    return (action_t) { .type = ACTION_WARP_BUF_POP };
  case SDLK_RETURN:
    return (action_t) { .type = ACTION_WARP };
  case 'r':
    return (action_t) { .type = ACTION_RESET };
  case 's':
    return (action_t) { .type = ACTION_SOLVE };
  default:
    return (action_t) { .type = ACTION_NONE };
  }
}