From d0038fa6780c6f4b117b1e45f1bf0558a8543315 Mon Sep 17 00:00:00 2001
From: = <landan.parker@caci.com>
Date: Mon, 15 Apr 2024 18:13:58 +0000
Subject: [PATCH] adding changes to the go backend fo qualify excess risk

---
 .../order/excess_weight_risk_manager.go       | 70 +++++++++++++++++--
 1 file changed, 64 insertions(+), 6 deletions(-)

diff --git a/pkg/services/order/excess_weight_risk_manager.go b/pkg/services/order/excess_weight_risk_manager.go
index d3313c7437c..177073d7375 100644
--- a/pkg/services/order/excess_weight_risk_manager.go
+++ b/pkg/services/order/excess_weight_risk_manager.go
@@ -2,6 +2,7 @@ package order
 
 import (
 	"database/sql"
+	"errors"
 	"time"
 
 	"github.com/gobuffalo/validate/v3"
@@ -199,18 +200,75 @@ func (f *excessWeightRiskManager) updateAuthorizedWeight(appCtx appcontext.AppCo
 }
 
 func (f *excessWeightRiskManager) acknowledgeExcessWeight(appCtx appcontext.AppContext, move models.Move) (*models.Move, error) {
-	if !excessWeightRiskShouldBeAcknowledged(move) {
-		return &move, nil
+	db := appCtx.DB()
+	var theMove models.Move
+	err := db.EagerPreload("MTOShipments", "MTOShipments.PPMShipment", "Orders", "Orders.Grade", "Orders.Entitlement.DependentsAuthorized").Find(&theMove, move.ID)
+
+	if err != nil {
+		switch err {
+		case sql.ErrNoRows:
+			return nil, apperror.NewNotFoundError(move.ID, "looking for Move")
+		default:
+			return nil, apperror.NewQueryError("Move", err, "")
+		}
+	}
+
+	if theMove.Orders.Grade == nil {
+		return nil, errors.New("could not determine excess weight entitlement without grade")
+	}
+
+	if theMove.Orders.Entitlement.DependentsAuthorized == nil {
+		return nil, errors.New("could not determine excess weight entitlement without dependents authorization value")
+	}
+
+	totalWeightAllowance := models.GetWeightAllotment(*theMove.Orders.Grade)
+
+	weight := totalWeightAllowance.TotalWeightSelf
+	if *theMove.Orders.Entitlement.DependentsAuthorized {
+		weight = totalWeightAllowance.TotalWeightSelfPlusDependents
+	}
+
+	estimatedWeightTotal := 0
+
+	for _, shipment := range theMove.MTOShipments {
+
+		// turn this into a function later...
+		// use the appropriate riskOfExcess threshold modifier when it comes to NTSR shipments once that info is released.
+
+		// We should avoid counting shipments that haven't been approved yet and will need to account for diversions
+		// and cancellations factoring into the estimated weight total.
+		if shipment.Status == models.MTOShipmentStatusApproved {
+			if shipment.PrimeEstimatedWeight != nil {
+				estimatedWeightTotal += shipment.PrimeEstimatedWeight.Int()
+			}
+			if shipment.PPMShipment != nil {
+				estimatedWeightTotal += shipment.PPMShipment.EstimatedWeight.Int()
+			}
+		}
+	}
+
+	const RiskOfExcessThreshold = .9
+	// may need to take into account floating point precision here but should be dealing with whole numbers
+	if int(float32(weight)*RiskOfExcessThreshold) <= estimatedWeightTotal {
+		excessWeightQualifiedAt := time.Now()
+		theMove.ExcessWeightQualifiedAt = &excessWeightQualifiedAt
+	} else if theMove.ExcessWeightQualifiedAt != nil {
+		// the move had previously qualified for excess weight but does not any longer so reset the value
+		theMove.ExcessWeightQualifiedAt = nil
+	}
+
+	if !excessWeightRiskShouldBeAcknowledged(theMove) {
+		return &theMove, nil
 	}
 
 	now := time.Now()
-	move.ExcessWeightAcknowledgedAt = &now
-	verrs, err := appCtx.DB().ValidateAndUpdate(&move)
+	theMove.ExcessWeightAcknowledgedAt = &now
+	verrs, err := appCtx.DB().ValidateAndUpdate(&theMove)
 	if e := f.handleError(move.ID, verrs, err); e != nil {
-		return &move, e
+		return &theMove, e
 	}
 
-	return &move, nil
+	return &theMove, nil
 }
 
 func (f *excessWeightRiskManager) handleError(modelID uuid.UUID, verrs *validate.Errors, err error) error {