P-ragati commented on code in PR #5693:
URL: https://github.com/apache/fineract/pull/5693#discussion_r2992762180


##########
fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/serialization/LoanDisbursementValidator.java:
##########
@@ -39,29 +40,59 @@ public void 
compareDisbursedToApprovedOrProposedPrincipal(final Loan loan, final
         final BigDecimal totalCapitalizedIncomeAdjustment = 
MathUtil.nullToZero(loan.getSummary().getTotalCapitalizedIncomeAdjustment());
         final BigDecimal netCapitalizedIncome = 
totalCapitalizedIncome.subtract(totalCapitalizedIncomeAdjustment);
 
-        if (loan.loanProduct().isAllowApprovedDisbursedAmountsOverApplied()) {
-            // Validate total disbursed amount (after this transaction) 
against max allowed
-            validateOverMaximumAmount(loan, totalDisbursed, 
netCapitalizedIncome);
-        } else {
-            if ((totalDisbursed.compareTo(loan.getApprovedPrincipal()) > 0)
-                    || 
(totalDisbursed.add(netCapitalizedIncome).compareTo(loan.getApprovedPrincipal())
 > 0)) {
-                final String errorMsg = "Loan can't be disbursed, disburse 
amount is exceeding approved principal.";
-                throw new LoanDisbursalException(errorMsg, 
"disburse.amount.must.be.less.than.approved.principal", totalDisbursed,
-                        loan.getApprovedPrincipal());
+        // Always use the same logic for over-applied config and fallback
+        LoanProduct loanProduct = loan.getLoanProduct();
+        BigDecimal approvedPrincipal = loan.getApprovedPrincipal();
+        BigDecimal maxAllowed = approvedPrincipal;
+
+        if (loanProduct.getOverAppliedCalculationType() != null && 
loanProduct.getOverAppliedNumber() != null) {
+            BigDecimal overAppliedNumber = 
BigDecimal.valueOf(loanProduct.getOverAppliedNumber());
+            if 
("percentage".equalsIgnoreCase(loanProduct.getOverAppliedCalculationType())) {
+                BigDecimal extra = 
approvedPrincipal.multiply(overAppliedNumber).divide(BigDecimal.valueOf(100));
+                maxAllowed = approvedPrincipal.add(extra);
+            } else {
+                // ABSOLUTE (flat)
+                maxAllowed = approvedPrincipal.add(overAppliedNumber);
             }
         }
+
+        BigDecimal total = totalDisbursed.add(netCapitalizedIncome);
+        if (maxAllowed == null) {
+            maxAllowed = approvedPrincipal;
+        }
+        if (total.compareTo(maxAllowed) > 0) {
+            throw new LoanDisbursalException(
+                "Disbursement exceeds allowed limit including over-applied 
threshold",
+                "disburse.amount.must.be.less.than.or.equal.to.max.allowed", 
total, maxAllowed);
+        }
     }
 
     public void validateOverMaximumAmount(final Loan loan, final BigDecimal 
totalDisbursed, final BigDecimal capitalizedIncome) {
-        final BigDecimal maxDisbursedAmount = 
loanApplicationValidator.getOverAppliedMax(loan);
-        if 
(totalDisbursed.add(capitalizedIncome).compareTo(maxDisbursedAmount) > 0) {
+        LoanProduct loanProduct = loan.getLoanProduct();
+        BigDecimal approvedPrincipal = loan.getApprovedPrincipal();
+        BigDecimal maxAllowed = approvedPrincipal;
+
+        if (loanProduct.getOverAppliedCalculationType() != null && 
loanProduct.getOverAppliedNumber() != null) {
+            BigDecimal overAppliedNumber = 
BigDecimal.valueOf(loanProduct.getOverAppliedNumber());
+            if 
("percentage".equalsIgnoreCase(loanProduct.getOverAppliedCalculationType())) {
+                BigDecimal extra = 
approvedPrincipal.multiply(overAppliedNumber).divide(BigDecimal.valueOf(100));
+                maxAllowed = approvedPrincipal.add(extra);
+            } else {
+                // ABSOLUTE (flat)
+                maxAllowed = approvedPrincipal.add(overAppliedNumber);
+            }
+        }
+

Review Comment:
   Updated. Removed duplicated max calculation and now consistently using 
loanApplicationValidator.getOverAppliedMax(loan) to centralize the logic.



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