#include "widget.h"

#include <cassert.h>

// -----------------------------------------------------------------------------
// Widget.

#define UI_DEL(ppWidget)       \
  {                            \
    assert(ppWidget);          \
    void* widget_ = *ppWidget; \
    if (widget_) {             \
      free(widget_);           \
      *ppWidget = 0;           \
    }                          \
  }

uiWidgetType uiWidgetGetType(const uiWidget* widget) {
  assert(widget);
  return widget->type;
}

void DestroyWidget(uiWidget** ppWidget) {
  assert(ppWidget);

  uiWidget* widget = *ppWidget;
  if (widget) {
    list_foreach_mut(widget->children, child, { DestroyWidget(&child); });
  }
  UI_DEL(ppWidget);
}

void uiWidgetSetParent(uiPtr child_, uiPtr parent_) {
  uiWidget* child  = child_.widget;
  uiWidget* parent = parent_.widget;

  assert(child);
  assert(parent);

  list_add(parent->children, child);
}

// -----------------------------------------------------------------------------
// Widget pointers.

uiPtr uiMakeButtonPtr(uiButton* button) {
  assert(button);
  return (uiPtr){.type = uiTypeButton, .button = button};
}

uiPtr uiMakeFramePtr(uiFrame* frame) {
  assert(frame);
  return (uiPtr){.type = uiTypeFrame, .frame = frame};
}

uiPtr uiMakeLabelPtr(uiLabel* label) {
  assert(label);
  return (uiPtr){.type = uiTypeLabel, .label = label};
}

uiPtr uiMakeTablePtr(uiTable* table) {
  assert(table);
  return (uiPtr){.type = uiTypeTable, .table = table};
}

static uiPtr uiMakeWidgetPtr(uiWidget* widget) {
  assert(widget);
  return (uiPtr){.type = widget->type, .widget = widget};
}

uiButton* uiGetButtonPtr(uiPtr ptr) {
  assert(ptr.type == uiTypeButton);
  assert(ptr.button);
  return ptr.button;
}

uiFrame* uiGetFramePtr(uiPtr ptr) {
  assert(ptr.type == uiTypeFrame);
  assert(ptr.frame);
  return ptr.frame;
}

uiLabel* uiGetLabelPtr(uiPtr ptr) {
  assert(ptr.type == uiTypeLabel);
  assert(ptr.label);
  return ptr.label;
}

uiTable* uiGetTablePtr(uiPtr ptr) {
  assert(ptr.type == uiTypeTable);
  assert(ptr.table);
  return ptr.table;
}