feat: manual pullet cost

internal/common/service/common.depreciation.service.go

@@ -49,7 +49,23 @@ func CalculateDepreciationAtDayN(
 	houseType string,
 	percentByHouseType map[string]map[int]float64,
 ) (float64, float64, float64) {
-	if initialPulletCost <= 0 || dayN <= 0 {
+	return CalculateDepreciationFromDayRange(initialPulletCost, 1, dayN, houseType, percentByHouseType)
+}
+
+func CalculateDepreciationFromDayRange(
+	initialPulletCost float64,
+	startDay int,
+	endDay int,
+	houseType string,
+	percentByHouseType map[string]map[int]float64,
+) (float64, float64, float64) {
+	if initialPulletCost <= 0 || endDay <= 0 {
+		return 0, 0, 0
+	}
+	if startDay <= 0 {
+		startDay = 1
+	}
+	if endDay < startDay {
 		return 0, 0, 0
 	}
 
@@ -63,10 +79,10 @@ func CalculateDepreciationAtDayN(
 	pulletCostDayN := 0.0
 	depreciationValue := 0.0
 	depreciationPercent := 0.0
-	for day := 1; day <= dayN; day++ {
+	for day := startDay; day <= endDay; day++ {
 		pct := housePercent[day]
 		dep := current * (pct / 100)
-		if day == dayN {
+		if day == endDay {
 			pulletCostDayN = current
 			depreciationValue = dep
 			depreciationPercent = pct