using System;
using System.Collections.Generic;


namespace vnxbqy.UI
{
    //充值自选功能
    public class CustomizedRechargeModel : Model
    {
        public const int MaxGridCount = 4;      //最多4个可选格子

        //用户选择面板
        public int chooseWinIndex = 0;              //用户选择面板 当前选中的格子(自选位索引)
        public int chooseCTGID = 0;                 //用户选择面板 当前选中的礼包id
        public Dictionary<int, int> chooseIndexDict = new Dictionary<int, int>();  //用户在选择面板中已选中物品栏中的索引

        public Action UpdateWin;
        VipModel vipModel { get { return ModelCenter.Instance.GetModel<VipModel>(); } }

        public override void Init()
        {
        }


        public override void UnInit()
        {
        }


        //自选礼包 物品信息
        //count为固定的数量，sumCount包含自选格子总数量不管是否已选
        public bool TryGetRechargeItemEx(int ctgId, out List<Item> items, out int count, out int sumCount)
        {
            count = 0;
            sumCount = 0;
            items = new List<Item>();
            List<Item> awards = new List<Item>();
            if (!vipModel.TryGetRechargeItem(ctgId, out awards))
                return false;

            VipModel.RechargeCount rechargeCount;
            if (!vipModel.TryGetRechargeCount(ctgId, out rechargeCount))
            {
                return false;
            }

            count = awards.Count;
            for (int i = 0; i < awards.Count; i++)
            {
                items.Add(awards[i]);
            }
            var selectItemInfo = CTGConfig.Get(ctgId).SelectItemInfo;
            if (selectItemInfo != null && selectItemInfo.Length != 0)
            {
                sumCount = selectItemInfo.Length + items.Count;

                var selectedItemIndexs = ModelCenter.Instance.GetModel<CustomizedRechargeModel>().GetSelectedItems(rechargeCount.selectItemValue);
                //自选
                for (int j = 0; j < selectedItemIndexs.Count; j++)
                {
                    int selectID = selectItemInfo[j][selectedItemIndexs[j] - 1];

                    items.Add(new Item(CTGSelectItemConfig.Get(selectID).ItemID, CTGSelectItemConfig.Get(selectID).ItemCount));
                }
            }
            else
            {
                sumCount = count;
            }

            return true;
        }

        //约定最多4个可选, 只有全选和未选两种状态
        public List<int> GetSelectedItems(int SelectItemValue)
        {
            if (SelectItemValue <= 0)
                return new List<int>();
            var list = new List<int>();

            for (int i = 0; i < MaxGridCount; i++)
            {
                int itemIndex = (int)(SelectItemValue % 100);
                if (itemIndex == 0)
                    break;
                SelectItemValue /= 100;
                list.Add(itemIndex);
            }

            return list;
        }

        public uint GetSelectedItemValue()
        {
            uint SelectItemValue = 0;

            for (int i = 0; i < MaxGridCount; i++)
            {
                if (chooseIndexDict.ContainsKey(i))
                {
                    SelectItemValue += (uint)(chooseIndexDict[i] * Math.Pow(100, i));
                }
            }

            return SelectItemValue;
        }



        public void InitChoose()
        {
            VipModel.RechargeCount rechargeCount;
            vipModel.TryGetRechargeCount(chooseCTGID, out rechargeCount);

            var selectedItemIndexs = ModelCenter.Instance.GetModel<CustomizedRechargeModel>().GetSelectedItems(rechargeCount.selectItemValue);

            if (selectedItemIndexs.Count == 0)
            {
                chooseIndexDict.Clear();
                return;
            }

            for (int i = 0; i < selectedItemIndexs.Count; i++)
            {
                chooseIndexDict[i] = selectedItemIndexs[i];
            }
        }

        //0 未选中，从1开始
        public int GetChooseSubIndex(int index)
        {
            if (chooseIndexDict.ContainsKey(index))
                return chooseIndexDict[index];
            return 0;
        }

        public void ShowUIItems(List<CustomizedItemCell> itemCells, int ctgID)
        {
            int goodsCount; //固定商品种类数量
            int goodsSumCount; //商品总数量
            List<Item> awards = new List<Item>();
            TryGetRechargeItemEx(ctgID, out awards, out goodsCount, out goodsSumCount);
            VipModel.RechargeCount rechargeCount;
            vipModel.TryGetRechargeCount(ctgID, out rechargeCount);
            for (int i = 0; i < itemCells.Count; i++)
            {
                if (i < goodsSumCount)
                {
                    itemCells[i].SetActive(true);
                    int index = i;
                    if (i < awards.Count)
                    {
                        var award = awards[i];
                        var itemData = new ItemCellModel(award.id, false, (ulong)award.count);
                        itemCells[i].Init(itemData);
                        itemCells[i].button.SetListener(() =>
                        {
                            if (index < goodsCount)
                                ItemTipUtility.Show(award.id);
                            else
                            {
                                //可自选
                                chooseWinIndex = index - goodsCount;
                                chooseCTGID = ctgID;
                                WindowCenter.Instance.Open<CustomizedGiftChooseWin>();
                            }

                        });
                    }
                    else
                    {
                        itemCells[i].Init(null);
                        itemCells[i].button.SetListener(() =>
                        {
                            chooseWinIndex = index - goodsCount;
                            chooseCTGID = ctgID;
                            WindowCenter.Instance.Open<CustomizedGiftChooseWin>();
                        });
                    }
                }
                else
                {
                    itemCells[i].SetActive(false);
                }
            }
        }
    }
}