#include "Client/ModeDragState.h"
#include "UI/ShortcutPress.h"
#include "UI/UIFrameWnd.h"

#include <bit>

// OFFSET: 0x009310E0
// FUNCTION: fn_12699
void ShortcutPress::Press(
  UIFrameWnd& window,
  ShortcutGrid& grid,
  int x,
  int y,
  const NormalItemSlot* const* slots,
  const NormalItemSlot* const* itemSlots
) {
  const int columnOffset = std::bit_cast<int>(static_cast<unsigned>(x) - 15u);
  if (columnOffset >= 261 || x < 15 || y < 4) {
    window.UIFrameWnd::Slot25(x, y);
    return;
  }
  if (this->restricted) {
    return;
  }
  const int column = grid.HitTest(x, y, this->itemSlotActive, this->currentRow);
  if (column == -1) {
    return;
  }
  grid.hovered = column;
  const int index = 9 * this->currentRow + column;
  if (std::bit_cast<int>(9u * static_cast<unsigned>(grid.rows)) > index) {
    const NormalItemSlot& slot = *slots[index];
    if (slot.itemId == 0) {
      return;
    }
    if (slot.unknown_0000 != 0) {
      CSkillInfo skill = this->skills.Lookup(slot.itemId);
      if (skill.MatchesShortcut(&slot) && this->drag) {
        this->drag->BeginSkill(
          this->windows, this->resources, 7, skill.id, skill.name, std::bit_cast<std::int16_t>(slot.unknown_0005), index
        );
      }
    } else {
      ItemInfo item = LookupClientItem(this->inventory, std::bit_cast<int>(slot.itemId), 1);
      if (item.unknown_0000[1] != 0) {
        // Original main-row item path does not guard the active mode pointer.
        this->drag->BeginItem(this->windows, this->descriptions, 7, item, item.quantity, -1);
      }
    }
  } else if (this->itemSlotActive) {
    const NormalItemSlot& slot = *itemSlots[column];
    if (slot.itemId == 0) {
      return;
    }
    ItemInfo item = LookupClientItem(this->inventory, std::bit_cast<int>(slot.itemId), 1);
    if (item.unknown_0000[1] != 0 && this->drag) {
      this->drag->BeginItem(this->windows, this->descriptions, 7, item, item.quantity, -1);
    }
  }
}