From 5f0c57b88316f1f26a6d5d4e3aa0e57a9f932152 Mon Sep 17 00:00:00 2001
From: Muhimbura Brian Mart <brianmigel@gmail.com>
Date: Wed, 29 Nov 2023 18:09:24 +0300
Subject: [PATCH] validate client loan request before hard policy

---
 .../MemberHasNoPendingLoanException.java      | 31 +++++++++++++++++++
 ...tionChecklistWritePlatformServiceImpl.java | 16 ++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/exception/MemberHasNoPendingLoanException.java

diff --git a/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/exception/MemberHasNoPendingLoanException.java b/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/exception/MemberHasNoPendingLoanException.java
new file mode 100644
index 00000000000..7a9dc6003fd
--- /dev/null
+++ b/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/exception/MemberHasNoPendingLoanException.java
@@ -0,0 +1,31 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.fineract.organisation.prequalification.exception;
+
+import org.apache.fineract.infrastructure.core.exception.AbstractPlatformResourceNotFoundException;
+
+/**
+ * A {@link RuntimeException} thrown when client doesn't have a pending loan request.
+ */
+public class MemberHasNoPendingLoanException extends AbstractPlatformResourceNotFoundException {
+
+    public MemberHasNoPendingLoanException(String name, String dpi, String product) {
+        super("error.msg.client.pending.loan.request", "Client "+name+ " with dpi " + dpi + " doesnt have a pending loan request.", name, dpi, product);
+    }
+}
diff --git a/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/service/PrequalificationChecklistWritePlatformServiceImpl.java b/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/service/PrequalificationChecklistWritePlatformServiceImpl.java
index bffc5cbf896..54e67936e04 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/service/PrequalificationChecklistWritePlatformServiceImpl.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/organisation/prequalification/service/PrequalificationChecklistWritePlatformServiceImpl.java
@@ -57,6 +57,7 @@
 import org.apache.fineract.organisation.prequalification.domain.PrequalificationType;
 import org.apache.fineract.organisation.prequalification.domain.ValidationChecklistResult;
 import org.apache.fineract.organisation.prequalification.domain.ValidationChecklistResultRepository;
+import org.apache.fineract.organisation.prequalification.exception.MemberHasNoPendingLoanException;
 import org.apache.fineract.organisation.prequalification.exception.PrequalificationNotMappedException;
 import org.apache.fineract.useradministration.domain.AppUser;
 import org.jetbrains.annotations.NotNull;
@@ -88,6 +89,9 @@ public CommandProcessingResult validatePrequalificationHardPolicies(Long prequal
         AppUser appUser = this.context.authenticatedUser();
         PrequalificationGroup prequalificationGroup = this.prequalificationGroupRepositoryWrapper
                 .findOneWithNotFoundDetection(prequalificationId);
+
+        validateMemberLoanRequest(prequalificationGroup);
+
         String blistSql = "select count(*) from m_group where prequalification_id=?";
         Long attachedGroup = this.jdbcTemplate.queryForObject(blistSql, Long.class, prequalificationId);
         if (attachedGroup <= 0 && prequalificationGroup.getPrequalificationType().equals(PrequalificationType.GROUP.getValue()))
@@ -159,6 +163,18 @@ public CommandProcessingResult validatePrequalificationHardPolicies(Long prequal
         return new CommandProcessingResultBuilder().withCommandId(command.commandId()).withEntityId(prequalificationId).build();
     }
 
+    private void validateMemberLoanRequest(PrequalificationGroup group) {
+
+        List<PrequalificationGroupMember> members = group.getMembers();
+        for (PrequalificationGroupMember member : members) {
+            String pendingLoanRequest = "select count(*) from m_loan ml inner join m_client mc on mc.id = ml.client_id where mc.dpi=? AND ml.loan_status_id = 100 and ml.product_id = ?";
+            Long loanCount = this.jdbcTemplate.queryForObject(pendingLoanRequest, Long.class, member.getDpi(),group.getLoanProduct().getId());
+            if (loanCount<=0)
+                throw new MemberHasNoPendingLoanException(member.getName(), member.getDpi(), group.getLoanProduct().getName());
+
+        }
+    }
+
     static final class PolicyMapper implements RowMapper<PolicyData> {
 
         public String schema() {