fineract-provider/src/main/java/org/apache/fineract/cob/loan/CheckLoanRepaymentOverdueBusinessStep.java

/**
 * 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.cob.loan;

import java.math.BigDecimal;
import java.time.LocalDate;
import java.util.Arrays;
import java.util.List;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.fineract.infrastructure.configuration.domain.ConfigurationDomainService;
import org.apache.fineract.infrastructure.core.service.DateUtils;
import org.apache.fineract.infrastructure.event.business.domain.loan.repayment.LoanRepaymentOverdueBusinessEvent;
import org.apache.fineract.infrastructure.event.business.service.BusinessEventNotifierService;
import org.apache.fineract.portfolio.loanaccount.domain.Loan;
import org.apache.fineract.portfolio.loanaccount.domain.LoanRepaymentScheduleInstallment;
import org.apache.fineract.portfolio.loanaccount.domain.LoanStatus;
import org.springframework.stereotype.Component;

@Slf4j
@Component
@RequiredArgsConstructor
public class CheckLoanRepaymentOverdueBusinessStep implements LoanCOBBusinessStep {

    private final ConfigurationDomainService configurationDomainService;
    private final BusinessEventNotifierService businessEventNotifierService;

    @Override
    public Loan execute(Loan loan) {
        List<LoanStatus> nonDisbursedStatuses = Arrays.asList(LoanStatus.INVALID, LoanStatus.SUBMITTED_AND_PENDING_APPROVAL,
                LoanStatus.APPROVED);
        if (!nonDisbursedStatuses.contains(loan.getStatus())
                && loan.getLoanSummary().getTotalOutstanding().compareTo(BigDecimal.ZERO) > 0) {
            log.debug("start processing loan repayment overdue business step for loan with Id [{}]", loan.getId());
            Long numberOfDaysAfterDueDateToRaiseEvent = configurationDomainService.retrieveRepaymentOverdueDays();
            if (loan.getLoanProduct().getOverDueDaysForRepaymentEvent() != null) {
                if (loan.getLoanProduct().getOverDueDaysForRepaymentEvent() > 0) {
                    numberOfDaysAfterDueDateToRaiseEvent = loan.getLoanProduct().getOverDueDaysForRepaymentEvent().longValue();
                }
            }
            final LocalDate currentDate = DateUtils.getBusinessLocalDate();
            final List<LoanRepaymentScheduleInstallment> loanRepaymentScheduleInstallments = loan.getRepaymentScheduleInstallments();
            for (LoanRepaymentScheduleInstallment repaymentSchedule : loanRepaymentScheduleInstallments) {
                if (!repaymentSchedule.isObligationsMet()) {
                    LocalDate installmentDueDate = repaymentSchedule.getDueDate();
                    if (isOverDueEventNeededToBeSent(loan, numberOfDaysAfterDueDateToRaiseEvent, currentDate, repaymentSchedule,
                            installmentDueDate)) {
                        businessEventNotifierService.notifyPostBusinessEvent(new LoanRepaymentOverdueBusinessEvent(repaymentSchedule));
                        break;
                    }
                }
            }
            log.debug("end processing loan repayment overdue business step for loan with Id [{}]", loan.getId());
        }
        return loan;
    }

    @Override
    public String getEnumStyledName() {
        return "CHECK_LOAN_REPAYMENT_OVERDUE";
    }

    @Override
    public String getHumanReadableName() {
        return "Check loan repayment overdue";
    }

    private static boolean isOverDueEventNeededToBeSent(Loan loan, Long numberOfDaysBeforeDueDateToRaiseEvent, LocalDate currentDate,
            LoanRepaymentScheduleInstallment repaymentScheduleInstallment, LocalDate repaymentDate) {
        return repaymentDate.plusDays(numberOfDaysBeforeDueDateToRaiseEvent).equals(currentDate)
                && repaymentScheduleInstallment.getTotalOutstanding(loan.getCurrency()).isGreaterThanZero();
    }

}