public void InitAndFill(ClientSalePackageDefinition spd)
    {
        mApp = AppManager.Instance.GetFirstApp(AppType.UNITY_CLIENT);
        StoreWinController store = Main.Instance.WinManager.HomeWin.StoreWin;

        // resize parent height: this is a very hacky way...
        SalePackageHeight.sizeDelta = new Vector2(SalePackageHeight.sizeDelta.x,
                                                  NumRowHave * store.InfiniteScrollSaleSlotHeight.rect.height + TitleHeight);

        if(spd.Type == HomeSharedConstants.SalePackageType.GEMS_SALE && FooterPrefab != null)
        {
            if (mFooter == null)
            {
                mFooter = GameObjectPool.GetPool(GameObjectPool.Category.HOME, FooterPrefab, null).GetOne().GetComponent<RectTransform>();

                mFooter.SetParent(SalePackageHeight);
                mFooter.anchorMax = new Vector2(1, 0);
                mFooter.anchorMin = new Vector2(0, 0);
                mFooter.anchoredPosition = new Vector2(0, 0);
                mFooter.sizeDelta = new Vector2(0, FooterHeight);
            }
            mFooter.gameObject.SetActive(true);
        }

        // init based on the sale slot type
        for (int i = 0; i < Sales.Length; ++i)
        {
            if (i < spd.SaleDefinitions.Length)
            {
                if (spd.SaleDefinitions[i] != null)
                {
                    if (spd.Type == HomeSharedConstants.SalePackageType.DAILY_DEAL
                        && spd.SaleDefinitions[i].Id == HomeSharedConstants.DAILY_DEAL_LOCKED_SLOT_PLACEHOLDER)
                    {
                        Sales[i].Init(spd, null, SaleBtnController.SaleSlotType.LOCKED, i);
                    }
                    else
                    {
                        Sales[i].Init(spd, spd.SaleDefinitions[i], SaleBtnController.SaleSlotType.NORMAL, i);
                    }
                }
                else
                {
                    Sales[i].Init(spd, null, SaleBtnController.SaleSlotType.EMPTY, i);
                    BhgCore.Logger.LogWarning($"SalePackage {spd.Title.Value} shows empty sale slot at slot index {i}!");
                }
            }
            else
            {
                Sales[i].Init(spd, null, SaleBtnController.SaleSlotType.EMPTY, i);
                BhgCore.Logger.LogWarning($"SalePackage {spd.Title.Value} shows empty sale slot at slot index {i}!");
            }
        }
    }