forked from free-lancers/electricity_bill_calc_service
90 lines
3.0 KiB
Go
90 lines
3.0 KiB
Go
package calculate
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import (
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"electricity_bill_calc/model"
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"electricity_bill_calc/model/calculate"
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"errors"
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"fmt"
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"github.com/shopspring/decimal"
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)
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// 计算已经启用的商铺面积和
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func TotalConsumptionCalculate(tenements []calculate.PrimaryTenementStatistics,
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summary calculate.Summary) decimal.Decimal {
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var areaMaters []calculate.Meter
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for _, t := range tenements {
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areaMaters = append(areaMaters, t.Meters...)
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}
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areaMaters = removeDuplicates(areaMaters)
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var areaTotal float64
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for _, m := range areaMaters {
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areaTotal += m.Detail.Area.Decimal.InexactFloat64()
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}
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areaTotal += summary.OverallArea.InexactFloat64()
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return decimal.NewFromFloat(areaTotal)
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}
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func removeDuplicates(meters []calculate.Meter) []calculate.Meter {
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result := make([]calculate.Meter, 0, len(meters))
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seen := make(map[string]bool)
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for _, meter := range meters {
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if !seen[meter.Code] {
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seen[meter.Code] = true
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result = append(result, meter)
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}
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}
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return result
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}
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//计算线损以及调整线损
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func LossCalculate(report *model.ReportIndex, Public []calculate.Meter,
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publicTotal decimal.Decimal, summary calculate.Summary) error {
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summary.Loss = summary.Overall.Amount.Sub(summary.TotalConsumption)
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var summaryAmount decimal.Decimal
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if summary.Overall.Amount == decimal.Zero {
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summaryAmount = decimal.NewFromFloat(1.0)
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} else {
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summaryAmount = summary.Overall.Amount
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}
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summary.LossProportion = summary.Loss.Div(summaryAmount)
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var authorizedLossRate decimal.Decimal
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if summary.LossProportion.InexactFloat64() > report.AuthorizedLossRate {
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authorizedLossRate = summary.LossProportion
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} else {
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return errors.New(fmt.Sprintf("经过核算园区的线损率为：{%.8f}， 核定线损率为：{%.8f}", summary.LossProportion.InexactFloat64(),authorizedLossRate.InexactFloat64()))
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}
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summary.AuthoizeLoss = model.ConsumptionUnit{
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Amount: decimal.NewFromFloat(summary.Overall.Amount.InexactFloat64() * authorizedLossRate.InexactFloat64()),
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Fee: decimal.NewFromFloat((summary.Overall.Amount.InexactFloat64() * authorizedLossRate.InexactFloat64()) * summary.Overall.Price.InexactFloat64()),
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Price: summary.Overall.Price,
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Proportion: authorizedLossRate,
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}
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differentialLoss := summary.LossDilutedPrice.Sub(summary.AuthoizeLoss.Amount)
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if publicTotal.InexactFloat64() <= decimal.Zero.InexactFloat64() {
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return errors.New("园区公共表计的电量总和为非正值，或者园区未设置公共表计，无法计算核定线损")
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}
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for _, meter := range Public {
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amountProportion := meter.Overall.Amount.InexactFloat64() / publicTotal.InexactFloat64()
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adjustAmount := differentialLoss.InexactFloat64() * decimal.NewFromFloat(-1.0).InexactFloat64()
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meter.AdjustLoss = model.ConsumptionUnit{
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Amount: decimal.NewFromFloat(adjustAmount),
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Fee: decimal.NewFromFloat(adjustAmount * summary.LossDilutedPrice.InexactFloat64()),
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Price: summary.LossDilutedPrice,
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Proportion: decimal.NewFromFloat(amountProportion),
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}
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}
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return nil
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}
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