/// <summary>
/// 나머지 금액을 내림차순으로 최대한 분배
/// </summary>
/// <param name="before"></param>
/// <param name="rest"></param>
/// <returns></returns>
private static List <ReblancingItemReq> SetByRest(List <ReblancingItemReq> before, decimal rest, RestOptionTypes restOptionType)
{
List <ReblancingItemReq> result = new List <ReblancingItemReq>();
switch (restOptionType)
{
case RestOptionTypes.Unknown:
case RestOptionTypes.MinRest:
{
// 큰 가격순 정렬
if (before?.Any() ?? false)
{
before = before.OrderByDescending(x => x.CurrentPrice).ToList();
foreach (ReblancingItemReq entity in before)
{
ReblancingItemReq one = new ReblancingItemReq();
one.Name = entity.Name;
one.CurrentPrice = entity.CurrentPrice;
one.TargetWeight = entity.TargetWeight;
if (entity.CurrentPrice < rest)
{
int plusQty = (int)(rest / entity.CurrentPrice);
one.CurrentQty = entity.CurrentQty + plusQty;
rest = rest - (entity.CurrentPrice * plusQty);
}
else
{
one.CurrentQty = entity.CurrentQty;
}
result.Add(one);
}
}
}
break;
}
return(result);
}
/// <summary>
/// 리밸런싱
/// </summary>
/// <param name="before"></param>
/// <param name="additionalMoney"></param>
/// <returns></returns>
private static List <ReblancingItemReq> RebalancingStockItem(List <ReblancingItemReq> before, decimal additionalMoney, RestOptionTypes restOptionType)
{
#region 변수 선언
List <ReblancingItemReq> result = new List <ReblancingItemReq>();
decimal rest = 0;
#endregion
#region 라메터 유효성 검사
if (!(before?.Any() ?? false))
{
return(result);
}
#endregion
#region 행동 정의
// 비중 분배
result = SetByWeight(before, additionalMoney);
// 나머지 계산
rest = SumPriceQty(before) + additionalMoney - SumPriceQty(result);
// 나머지 분배
result = SetByRest(result, rest, restOptionType);
#endregion
#region 결과 값 생성
return(result);
#endregion
}
public static RebalancingRes Rebalancing(List <ReblancingItemReq> before, decimal additionalMoney, RestOptionTypes restOptionType)
{
#region 변수선언
RebalancingRes result = new RebalancingRes();
List <ReblancingItemReq> after = new List <ReblancingItemReq>();
#endregion
#region 라메터 유효성 검사
if (!(before?.Any() ?? false))
{
return(result);
}
#endregion
#region 행동 정의
// 리밸런싱
after = RebalancingStockItem(before, additionalMoney, restOptionType);
// 잔액 계산
result.RestAmount = SumPriceQty(before) + additionalMoney - SumPriceQty(after);
// 변경점 계산
result.ChangeSummary = MakeChangeSummary(before, after);
#endregion
#region 결과값 생성
return(result);
#endregion
}