/// <summary>
/// Calculates the total income with equal principal and interest.
/// </summary>
/// <param name="inverstParas">The inverst paras.</param>
/// <returns>InvestmentTotalIncome.</returns>
/// <remarks>
/// 创 建 者：解志辉
/// 创建日期：2016-05-17 10:43:10
/// </remarks>
private static InvestmentTotalIncome CalculateTotalIncomeWithEqualPrincipalAndInterest(InvestmentParameters inverstParas)
{
InvestmentTotalIncome income = new InvestmentTotalIncome();
if (inverstParas.CircleType == 1)
{
income.Reward = inverstParas.Amount * ((decimal)(inverstParas.RewardRate / 100.0));
income.ActualYearRate = (inverstParas.NominalYearRate * (1.0 - (inverstParas.OverheadsRate / 100.0))) + ((inverstParas.RewardRate / ((double)inverstParas.Circle)) * 12.0);
income.ActualMonthRate = income.ActualYearRate / 12.0;
double num = (inverstParas.NominalYearRate / 12.0) / 100.0;
double num2 = Math.Pow(1.0 + num, (double)inverstParas.Circle);
decimal num3 = 0M;
if (num > 0.0)
{
num3 = inverstParas.Amount * ((decimal)((num * num2) / (num2 - 1.0)));
}
else
{
num3 = inverstParas.Amount / inverstParas.Circle;
}
income.TotalIncome = (num3 * inverstParas.Circle) + income.Reward;
income.Interest = income.TotalIncome - inverstParas.Amount;
income.Overheads = income.Interest * (((decimal)inverstParas.OverheadsRate) / 100M);
return(income);
}
if (inverstParas.CircleType == 3)
{
income = CalculateTotalIncomeWithLumpSumPrincipalAndInterest(inverstParas);
}
return(income);
}
public decimal Calculationofinterest(InvestmentParameters Minverst)
{
decimal dec = 0.00M;
InvestmentParameters inverstParas = new InvestmentParameters
{
Amount = Minverst.Amount, //投资金额
Circle = Minverst.Circle, //期限
CircleType = Minverst.CircleType, //期限类型 月 / 天
NominalYearRate = Minverst.NominalYearRate, //年利率
OverheadsRate = Minverst.OverheadsRate, //管理费率
RepaymentMode = Minverst.RepaymentMode, //还款方式
RewardRate = Minverst.RewardRate, //奖励比例
InvestDate = Minverst.InvestDate,
IsThirtyDayMonth = false,
Investmentenddate = Minverst.Investmentenddate,
Payinterest = Minverst.Payinterest,
InvestObject = Minverst.InvestObject
};
InvestmentTotalIncome income = ChuanglitouP2P.Bll.VeryCodes.NetCreditAssistant.BLL.InvestCalculator.CalculateTotalIncome(inverstParas);
List <InvestmentReceiveRecordInfo> records = income.ReceiveRecords;
foreach (InvestmentReceiveRecordInfo p in records)
{
dec = dec + p.Interest;
}
// dec = dec + Minverst.Amount; //投资总收益
return(dec);
}
/// <summary>
/// 计算利息返回分期记录列表
/// </summary>
/// <param name="Minverst">业务对象</param>
/// <returns>List<InvestmentReceiveRecordInfo>.</returns>
/// 创 建 者：解志辉
/// 创建日期：2016-05-17 10:42:53
public static List <InvestmentReceiveRecordInfo> Calculationofinterest(InvestmentParameters Minverst)
{
StringBuilder str = new StringBuilder();
InvestmentParameters inverstParas = new InvestmentParameters
{
Amount = Minverst.Amount, //投资金额
Circle = Minverst.Circle, //期限
CircleType = Minverst.CircleType, //期限类型 月 / 天
NominalYearRate = Minverst.NominalYearRate, //年利率
OverheadsRate = Minverst.OverheadsRate, //管理费率
RepaymentMode = Minverst.RepaymentMode, //还款方式
RewardRate = Minverst.RewardRate, //奖励比例
InvestDate = Minverst.InvestDate,
IsThirtyDayMonth = false,
Investmentenddate = Minverst.Investmentenddate,
Payinterest = Minverst.Payinterest,
InvestObject = Minverst.InvestObject
};
InvestmentTotalIncome income = InvestCalculator.CalculateTotalIncome(inverstParas);
List <InvestmentReceiveRecordInfo> records = income.ReceiveRecords;
return(records);
}
/// <summary>
/// 计算投资收入
/// </summary>
/// <param name="inverstParas"></param>
/// <returns></returns>
public static InvestmentTotalIncome CalculateTotalIncome(InvestmentParameters inverstParas)
{
InvestmentTotalIncome income = new InvestmentTotalIncome();
switch (inverstParas.RepaymentMode)
{
case 1:
income = CalculateTotalIncomeWithEqualPrincipalAndInterest(inverstParas); //以平等的本金和利息的计算总收入 按月等额本息
break;
case 2:
income = CalculateTotalIncomeWithEqualPrincipalByQuart(inverstParas);
break;
case 3:
income = CalculateTotalIncomeWithInterestByMonth(inverstParas);
break;
case 4:
income = CalculateTotalIncomeWithLumpSumPrincipalAndInterest(inverstParas);
break;
}
return(CorrectTotalIncome(FormatTotalIncome(income), inverstParas));
}
private static InvestmentTotalIncome FormatTotalIncome(InvestmentTotalIncome income)
{
if (income != null)
{
income.TotalIncome = Math.Round(income.TotalIncome, 2);
income.Reward = Math.Round(income.Reward, 2);
income.Interest = Math.Round(income.Interest, 2);
income.Overheads = Math.Round(income.Overheads, 2);
income.CleanTotalIncome = income.TotalIncome - income.Overheads;
income.ActualYearRate = Math.Round(income.ActualYearRate, 2);
income.ActualMonthRate = Math.Round(income.ActualMonthRate, 2);
}
return(income);
}
/// <summary>
/// 计算总付本金和利息收入总额 天为单位
/// </summary>
/// <param name="inverstParas">The inverst paras.</param>
/// <returns>InvestmentTotalIncome.</returns>
/// <remarks>
/// 创 建 者：解志辉
/// 创建日期：2016-05-17 10:43:02
/// </remarks>
private static InvestmentTotalIncome CalculateTotalIncomeWithLumpSumPrincipalAndInterest(InvestmentParameters inverstParas)
{
InvestmentTotalIncome income = new InvestmentTotalIncome();
double circle = inverstParas.Circle;
if (inverstParas.CircleType == 3)
{
circle = ((double)inverstParas.Circle) / 30.0;
}
income.Reward = inverstParas.Amount * ((decimal)(inverstParas.RewardRate / 100.0));
income.ActualYearRate = (inverstParas.NominalYearRate * (1.0 - (inverstParas.OverheadsRate / 100.0))) + ((inverstParas.RewardRate / circle) * 12.0);
income.ActualMonthRate = income.ActualYearRate / 12.0;
income.Interest = inverstParas.Amount * ((decimal)(((inverstParas.NominalYearRate / 100.0) * inverstParas.Circle) / 365.0));
income.TotalIncome = (inverstParas.Amount + income.Interest) + income.Reward;
income.Overheads = income.Interest * (((decimal)inverstParas.OverheadsRate) / 100M);
return(income);
}
/// <summary>
/// Corrects the total income.
/// </summary>
/// <param name="income">The income.</param>
/// <param name="inverstParas">The inverst paras.</param>
/// <returns>InvestmentTotalIncome.</returns>
/// <remarks>
/// 创 建 者：解志辉
/// 创建日期：2016-05-17 10:43:00
/// </remarks>
private static InvestmentTotalIncome CorrectTotalIncome(InvestmentTotalIncome income, InvestmentParameters inverstParas)
{
List <InvestmentReceiveRecordInfo> list = CalculateReceiveRecord(inverstParas);
income.ReceiveRecords = list;
decimal num = 0M;
decimal num2 = 0M;
foreach (InvestmentReceiveRecordInfo info in list)
{
num += info.Interest;
num2 += info.Principal;
}
income.Interest = num;
income.TotalIncome = (num + inverstParas.Amount) + income.Reward;
income.CleanTotalIncome = income.TotalIncome - income.Overheads;
income.TotalEarnings = income.TotalIncome - inverstParas.Amount;
income.CleanTotalEarnings = income.TotalEarnings - income.Overheads;
return(income);
}
/// <summary>
/// 以月计算利息的总收入 [以月付息到期还本]
/// </summary>
/// <param name="inverstParas">The inverst paras.</param>
/// <returns>InvestmentTotalIncome.</returns>
/// <remarks>
/// 创 建 者：解志辉
/// 创建日期：2016-05-17 10:43:05
/// </remarks>
private static InvestmentTotalIncome CalculateTotalIncomeWithInterestByMonth(InvestmentParameters inverstParas)
{
InvestmentTotalIncome income = new InvestmentTotalIncome();
if (inverstParas.CircleType == 1) //月
{
income.Reward = inverstParas.Amount * ((decimal)(inverstParas.RewardRate / 100.0));
income.ActualYearRate = (inverstParas.NominalYearRate * (1.0 - (inverstParas.OverheadsRate / 100.0))) + ((inverstParas.RewardRate / ((double)inverstParas.Circle)) * 12.0);
income.ActualMonthRate = income.ActualYearRate / 12.0;
double num = (inverstParas.NominalYearRate / 12.0) / 100.0;
decimal num2 = inverstParas.Amount * ((decimal)num);
income.Interest = num2 * inverstParas.Circle;
income.TotalIncome = (income.Interest + inverstParas.Amount) + income.Reward;
income.Overheads = income.Interest * (((decimal)inverstParas.OverheadsRate) / 100M);
return(income);
}
if (inverstParas.CircleType == 3) //天
{
income = CalculateTotalIncomeWithLumpSumPrincipalAndInterest(inverstParas);
}
return(income);
}
/// <summary>
/// Calculates the total income with equal principal by quart.
/// </summary>
/// <param name="inverstParas">The inverst paras.</param>
/// <returns>InvestmentTotalIncome.</returns>
/// 创 建 者：解志辉
/// 创建日期：2016-05-17 10:43:07
private static InvestmentTotalIncome CalculateTotalIncomeWithEqualPrincipalByQuart(InvestmentParameters inverstParas)
{
InvestmentTotalIncome income = new InvestmentTotalIncome();
if (inverstParas.CircleType == 1)
{
double num = Math.Ceiling((double)(((double)inverstParas.Circle) / 3.0));
income.Reward = inverstParas.Amount * ((decimal)(inverstParas.RewardRate / 100.0));
income.ActualYearRate = (inverstParas.NominalYearRate * (1.0 - (inverstParas.OverheadsRate / 100.0))) + ((inverstParas.RewardRate / num) * 4.0);
income.ActualMonthRate = income.ActualYearRate / 12.0;
decimal num2 = (((decimal)inverstParas.NominalYearRate) / 4M) / 100M;
income.Interest = (inverstParas.Amount * ((decimal)(((double)Sum((int)num)) / num))) * num2;
income.TotalIncome = inverstParas.Amount + income.Interest;
income.Overheads = income.Interest * (((decimal)inverstParas.OverheadsRate) / 100M);
return(income);
}
if (inverstParas.CircleType == 3)
{
income = CalculateTotalIncomeWithLumpSumPrincipalAndInterest(inverstParas);
}
return(income);
}
