#include "cell.h"
#include <SDL3/SDL.h>

// SDL_GetTouchDevices() -> array of touch device IDs
JSC_CCALL(touch_get_devices,
  int count = 0;
  SDL_TouchID *devices = SDL_GetTouchDevices(&count);
  if (!devices) return JS_NewArray(js);
  
  JSValue arr = JS_NewArray(js);
  for (int i = 0; i < count; i++) {
    JS_SetPropertyUint32(js, arr, i, JS_NewInt64(js, devices[i]));
  }
  SDL_free(devices);
  return arr;
)

// SDL_GetTouchDeviceName(touchID) -> string
JSC_CCALL(touch_get_device_name,
  int64_t touchID;
  JS_ToInt64(js, &touchID, argv[0]);
  const char *name = SDL_GetTouchDeviceName((SDL_TouchID)touchID);
  return name ? JS_NewString(js, name) : JS_NULL;
)

// SDL_GetTouchDeviceType(touchID) -> string
static const char *touch_device_type_to_string(SDL_TouchDeviceType type) {
  switch (type) {
    case SDL_TOUCH_DEVICE_DIRECT: return "direct";
    case SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE: return "indirect_absolute";
    case SDL_TOUCH_DEVICE_INDIRECT_RELATIVE: return "indirect_relative";
    default: return "invalid";
  }
}

JSC_CCALL(touch_get_device_type,
  int64_t touchID;
  JS_ToInt64(js, &touchID, argv[0]);
  SDL_TouchDeviceType type = SDL_GetTouchDeviceType((SDL_TouchID)touchID);
  return JS_NewString(js, touch_device_type_to_string(type));
)

// SDL_GetTouchFingers(touchID) -> array of finger objects
JSC_CCALL(touch_get_fingers,
  int64_t touchID;
  JS_ToInt64(js, &touchID, argv[0]);
  
  int count = 0;
  SDL_Finger **fingers = SDL_GetTouchFingers((SDL_TouchID)touchID, &count);
  if (!fingers) return JS_NewArray(js);
  
  JSValue arr = JS_NewArray(js);
  for (int i = 0; i < count; i++) {
    SDL_Finger *f = fingers[i];
    JSValue finger = JS_NewObject(js);
    JS_SetPropertyStr(js, finger, "id", JS_NewInt64(js, f->id));
    JS_SetPropertyStr(js, finger, "x", JS_NewFloat64(js, f->x));
    JS_SetPropertyStr(js, finger, "y", JS_NewFloat64(js, f->y));
    JS_SetPropertyStr(js, finger, "pressure", JS_NewFloat64(js, f->pressure));
    JS_SetPropertyUint32(js, arr, i, finger);
  }
  SDL_free(fingers);
  return arr;
)

static const JSCFunctionListEntry js_touch_funcs[] = {
  MIST_FUNC_DEF(touch, get_devices, 0),
  MIST_FUNC_DEF(touch, get_device_name, 1),
  MIST_FUNC_DEF(touch, get_device_type, 1),
  MIST_FUNC_DEF(touch, get_fingers, 1),
};

CELL_USE_FUNCS(js_touch_funcs)