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cbsnexora/src/app/loans/loans-account-stepper/loans-account-terms-step/loans-account-terms-step.component.ts
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TypeScript

/** Angular Imports */
import { Component, OnInit, Input, OnChanges } from '@angular/core';
import { UntypedFormGroup, UntypedFormBuilder, Validators, FormArray, UntypedFormControl } from '@angular/forms';
import { MatDialog } from '@angular/material/dialog';
import { ActivatedRoute } from '@angular/router';
import { LoansAccountAddCollateralDialogComponent } from 'app/loans/custom-dialog/loans-account-add-collateral-dialog/loans-account-add-collateral-dialog.component';
import { LoanProducts } from 'app/products/loan-products/loan-products';
import { LoanProduct } from 'app/products/loan-products/models/loan-product.model';
import { SettingsService } from 'app/settings/settings.service';
import { DeleteDialogComponent } from 'app/shared/delete-dialog/delete-dialog.component';
import { FormDialogComponent } from 'app/shared/form-dialog/form-dialog.component';
import { DatepickerBase } from 'app/shared/form-dialog/formfield/model/datepicker-base';
import { FormfieldBase } from 'app/shared/form-dialog/formfield/model/formfield-base';
import { InputBase } from 'app/shared/form-dialog/formfield/model/input-base';
import { CodeName, OptionData } from 'app/shared/models/option-data.model';
/**
* Create Loans Account Terms Step
*/
@Component({
selector: 'mifosx-loans-account-terms-step',
templateUrl: './loans-account-terms-step.component.html',
styleUrls: ['./loans-account-terms-step.component.scss']
})
export class LoansAccountTermsStepComponent implements OnInit, OnChanges {
/** Loans Product Options */
@Input() loansProductOptions: any;
/** Loans Account Product Template */
@Input() loansAccountProductTemplate: any;
/** Loans Account Template */
@Input() loansAccountTemplate: any;
loansAccountTermsData: any;
/** Is Multi Disburse Loan */
multiDisburseLoan: any;
// @Input() loansAccountFormValid: LoansAccountFormValid
@Input() loansAccountFormValid: boolean;
// @Input collateralOptions: Collateral Options
@Input() collateralOptions: any;
// @Input loanPrincipal: Loan Principle
@Input() loanPrincipal: any;
/** Minimum date allowed. */
minDate = new Date(2000, 0, 1);
/** Maximum date allowed. */
maxDate = new Date(2100, 0, 1);
/** Loans Account Terms Form */
loansAccountTermsForm: UntypedFormGroup;
/** Term Frequency Type Data */
termFrequencyTypeData: any;
/** Repayment Frequency Nth Day Type Data */
repaymentFrequencyNthDayTypeData: any;
/** Repayment Frequency Days of Week Type Data */
repaymentFrequencyDaysOfWeekTypeData: any;
/** Interest Type Data */
interestTypeData: any;
/** Amortization Type Data */
amortizationTypeData: any;
/** Interest Calculation Period Type Data */
interestCalculationPeriodTypeData: any;
/** Client Active Loan Data */
clientActiveLoanData: any;
/** Multi Disbursement Data */
disbursementDataSource: {}[] = [];
currencyDisplaySymbol = '$';
/** Loan repayment strategies */
transactionProcessingStrategyOptions: any = [];
repaymentStrategyDisabled = false;
/** Check if value of collateral added is more than principal amount */
isCollateralSufficient = false;
/** Total value of all collateral added to a loan */
totalCollateralValue: any = 0;
/** Collateral Data Source */
collateralDataSource: {}[] = [];
/** Columns to be displayed in collateral table. */
loanCollateralDisplayedColumns: string[] = ['type', 'value', 'totalValue', 'totalCollateralValue', 'action'];
/** Disbursement Data Displayed Columns */
disbursementDisplayedColumns: string[] = ['expectedDisbursementDate', 'principal', 'actions'];
/** Multi Disbursement Control */
totalMultiDisbursed: any = 0;
isMultiDisbursedCompleted = false;
/** Component is pristine if there has been no changes by user interaction */
pristine = true;
loanId: any = null;
loanScheduleType: OptionData | null = null;
loanProduct: LoanProduct | null = null;
interestRateFrequencyTypeData: any[] = [];
/**
* Create Loans Account Terms Form
* @param formBuilder FormBuilder
* @param {SettingsService} settingsService SettingsService
*/
constructor(private formBuilder: UntypedFormBuilder,
private settingsService: SettingsService,
private route: ActivatedRoute,
public dialog: MatDialog) {
this.loanId = this.route.snapshot.params['loanId'];
this.createloansAccountTermsForm();
}
/**
* Executes on change of input values
*/
ngOnChanges() {
if (this.loansAccountProductTemplate) {
this.loansAccountTermsData = this.loansAccountProductTemplate;
this.currencyDisplaySymbol = this.loansAccountTermsData.currency.displaySymbol;
if (this.loanId != null && this.loansAccountTemplate.accountNo) {
this.loansAccountTermsData = this.loansAccountTemplate;
}
if (this.loansAccountTermsData.product) {
this.loanProduct = this.loansAccountTermsData.product;
}
this.interestRateFrequencyTypeData = this.loansAccountTermsData.interestRateFrequencyTypeOptions;
console.log(this.loansAccountTermsData);
console.log(this.loanProduct);
this.loansAccountTermsForm.patchValue({
'principalAmount': this.loansAccountTermsData.principal,
'loanTermFrequency': this.loansAccountTermsData.termFrequency,
'loanTermFrequencyType': this.loansAccountTermsData.termPeriodFrequencyType.id,
'numberOfRepayments': this.loansAccountTermsData.numberOfRepayments,
'repaymentEvery': this.loansAccountTermsData.repaymentEvery,
'repaymentFrequencyType': this.loansAccountTermsData.repaymentFrequencyType.id,
'amortizationType': this.loansAccountTermsData.amortizationType.id,
'isEqualAmortization': this.loansAccountTermsData.isEqualAmortization,
'interestType': this.loansAccountTermsData.interestType.id,
'isFloatingInterestRate': this.loansAccountTermsData.isLoanProductLinkedToFloatingRate ? false : '',
'interestCalculationPeriodType': this.loansAccountTermsData.interestCalculationPeriodType.id,
'allowPartialPeriodInterestCalcualtion': this.loansAccountTermsData.allowPartialPeriodInterestCalcualtion,
'inArrearsTolerance': this.loansAccountTermsData.inArrearsTolerance,
'graceOnPrincipalPayment': this.loansAccountTermsData.graceOnPrincipalPayment,
'graceOnInterestPayment': this.loansAccountTermsData.graceOnInterestPayment,
'graceOnArrearsAgeing': this.loansAccountTermsData.graceOnArrearsAgeing,
'graceOnInterestCharged': this.loansAccountTermsData.graceOnInterestCharged,
'fixedEmiAmount': this.loansAccountTermsData.fixedEmiAmount,
'maxOutstandingLoanBalance': this.loansAccountTermsData.maxOutstandingLoanBalance,
'transactionProcessingStrategyCode': this.loansAccountTermsData.transactionProcessingStrategyCode,
'interestRateDifferential': this.loansAccountTermsData.interestRateDifferential,
'multiDisburseLoan': this.loansAccountTermsData.multiDisburseLoan,
'interestRateFrequencyType': this.loansAccountTermsData.interestRateFrequencyType.id,
'balloonRepaymentAmount': this.loansAccountTermsData.balloonRepaymentAmount,
});
this.setAdvancedPaymentStrategyControls();
if (this.loansAccountTermsData.isLoanProductLinkedToFloatingRate) {
this.loansAccountTermsForm.removeControl('interestRatePerPeriod');
}
this.multiDisburseLoan = this.loansAccountTermsData.multiDisburseLoan;
if (this.loansAccountTermsData.disbursementDetails) {
this.disbursementDataSource = this.loansAccountTermsData.disbursementDetails;
this.totalMultiDisbursed = 0;
this.disbursementDataSource.forEach((item: any) => {
this.totalMultiDisbursed += item.principal;
});
}
if (this.isDelinquencyEnabled()) {
this.loansAccountTermsForm.addControl('enableInstallmentLevelDelinquency', new UntypedFormControl(this.loansAccountTermsData.enableInstallmentLevelDelinquency || this.loanProduct.enableInstallmentLevelDelinquency));
}
this.collateralDataSource = this.loansAccountTermsData.collateral || [];
const allowAttributeOverrides = this.loansAccountTermsData.product.allowAttributeOverrides;
if (!allowAttributeOverrides.repaymentEvery) {
this.loansAccountTermsForm.controls.repaymentEvery.disable();
this.loansAccountTermsForm.controls.repaymentFrequencyType.disable();
}
if (!allowAttributeOverrides.interestType) {
this.loansAccountTermsForm.controls.interestType.disable();
}
if (!allowAttributeOverrides.amortizationType) {
this.loansAccountTermsForm.controls.amortizationType.disable();
}
if (!allowAttributeOverrides.interestCalculationPeriodType) {
this.loansAccountTermsForm.controls.interestCalculationPeriodType.disable();
this.loansAccountTermsForm.controls.allowPartialPeriodInterestCalcualtion.disable();
}
if (!allowAttributeOverrides.inArrearsTolerance) {
this.loansAccountTermsForm.controls.inArrearsTolerance.disable();
}
if (!allowAttributeOverrides.transactionProcessingStrategyCode) {
this.loansAccountTermsForm.controls.transactionProcessingStrategyCode.disable();
}
if (!allowAttributeOverrides.graceOnPrincipalAndInterestPayment) {
this.loansAccountTermsForm.controls.graceOnPrincipalPayment.disable();
}
if (!allowAttributeOverrides.graceOnPrincipalAndInterestPayment) {
this.loansAccountTermsForm.controls.graceOnInterestPayment.disable();
}
if (!allowAttributeOverrides.graceOnArrearsAgeing) {
this.loansAccountTermsForm.controls.graceOnArrearsAgeing.disable();
}
this.setOptions();
}
}
ngOnInit() {
this.maxDate = this.settingsService.maxFutureDate;
this.loansAccountTermsData = this.loansAccountProductTemplate;
if (this.loanId != null && this.loansAccountTemplate.accountNo) {
this.loansAccountTermsData = this.loansAccountTemplate;
}
if (this.loansAccountTermsData) {
if (this.loansAccountTermsData.loanProductId) {
this.loansAccountTermsForm.patchValue({
'repaymentsStartingFromDate': this.loansAccountTermsData.expectedFirstRepaymentOnDate && new Date(this.loansAccountTermsData.expectedFirstRepaymentOnDate)
});
}
this.loansAccountTermsForm.patchValue({
'principalAmount': this.loansAccountTermsData.principal,
'loanTermFrequency': this.loansAccountTermsData.termFrequency,
'loanTermFrequencyType': this.loansAccountTermsData.termPeriodFrequencyType.id,
'numberOfRepayments': this.loansAccountTermsData.numberOfRepayments,
'repaymentEvery': this.loansAccountTermsData.repaymentEvery,
'repaymentFrequencyType': this.loansAccountTermsData.repaymentFrequencyType.id,
'amortizationType': this.loansAccountTermsData.amortizationType.id,
'isEqualAmortization': this.loansAccountTermsData.isEqualAmortization,
'interestType': this.loansAccountTermsData.interestType.id,
'isFloatingInterestRate': this.loansAccountTermsData.isLoanProductLinkedToFloatingRate ? false : '',
'interestCalculationPeriodType': this.loansAccountTermsData.interestCalculationPeriodType.id,
'allowPartialPeriodInterestCalcualtion': this.loansAccountTermsData.allowPartialPeriodInterestCalcualtion,
'inArrearsTolerance': this.loansAccountTermsData.inArrearsTolerance,
'graceOnPrincipalPayment': this.loansAccountTermsData.graceOnPrincipalPayment,
'graceOnInterestPayment': this.loansAccountTermsData.graceOnInterestPayment,
'graceOnArrearsAgeing': this.loansAccountTermsData.graceOnArrearsAgeing,
'graceOnInterestCharged': this.loansAccountTermsData.graceOnInterestCharged,
'fixedEmiAmount': this.loansAccountTermsData.fixedEmiAmount,
'maxOutstandingLoanBalance': this.loansAccountTermsData.maxOutstandingLoanBalance,
'transactionProcessingStrategyCode': this.loansAccountTermsData.transactionProcessingStrategyCode,
'interestRateDifferential': this.loansAccountTermsData.interestRateDifferential,
'multiDisburseLoan': this.loansAccountTermsData.multiDisburseLoan,
'interestRateFrequencyType': this.loansAccountTermsData.interestRateFrequencyType.id,
'balloonRepaymentAmount': this.loansAccountTermsData.balloonRepaymentAmount
});
}
this.createloansAccountTermsForm();
this.setAdvancedPaymentStrategyControls();
// this.setCustomValidators();
this.setLoanTermListener();
}
allowAddDisbursementDetails() {
return (this.multiDisburseLoan && !this.loansAccountTermsData.disallowExpectedDisbursements);
}
/** Custom Validators for the form */
setCustomValidators() {
const repaymentFrequencyNthDayType = this.loansAccountTermsForm.get('repaymentFrequencyNthDayType');
const repaymentFrequencyDayOfWeekType = this.loansAccountTermsForm.get('repaymentFrequencyDayOfWeekType');
this.loansAccountTermsForm.get('repaymentFrequencyType').valueChanges
.subscribe(repaymentFrequencyType => {
if (repaymentFrequencyType === 2) {
repaymentFrequencyNthDayType.setValidators([Validators.required]);
repaymentFrequencyDayOfWeekType.setValidators([Validators.required]);
} else {
repaymentFrequencyNthDayType.setValidators(null);
repaymentFrequencyDayOfWeekType.setValidators(null);
}
repaymentFrequencyNthDayType.updateValueAndValidity();
repaymentFrequencyDayOfWeekType.updateValueAndValidity();
});
}
/** Custom Listeners for the form to calculate Loan Term */
setLoanTermListener() {
this.loansAccountTermsForm.get('numberOfRepayments').valueChanges
.subscribe(numberOfRepayments => {
const repaymentEvery: number = this.loansAccountTermsForm.value.repaymentEvery;
this.calculateLoanTerm(numberOfRepayments, repaymentEvery);
});
this.loansAccountTermsForm.get('repaymentEvery').valueChanges
.subscribe(repaymentEvery => {
const numberOfRepayments: number = this.loansAccountTermsForm.value.numberOfRepayments;
this.calculateLoanTerm(numberOfRepayments, repaymentEvery);
});
this.loansAccountTermsForm.get('loanTermFrequencyType').valueChanges
.subscribe(loanTermFrequencyType => {
this.loansAccountTermsForm.patchValue({'repaymentFrequencyType': loanTermFrequencyType});
});
this.loansAccountTermsForm.get('amortizationType').valueChanges
.subscribe(amortizationType => {
if (amortizationType === 0) { // Equal Principal Payments
this.loansAccountTermsForm.addControl('fixedPrincipalPercentagePerInstallment', new UntypedFormControl(''));
} else { // Equal Installments
this.loansAccountTermsForm.removeControl('fixedPrincipalPercentagePerInstallment');
}
});
}
setAdvancedPaymentStrategyControls(): void {
// Fixed Length validation
if (this.loansAccountTermsData) {
this.loansAccountTermsForm.removeControl('interestRatePerPeriod');
this.loansAccountTermsForm.removeControl('fixedLength');
if (this.loansAccountTermsData.product.fixedLength) {
this.loansAccountTermsForm.addControl('interestRatePerPeriod', new UntypedFormControl({value: 0, disabled: true}, Validators.required));
this.loansAccountTermsForm.addControl('fixedLength', new UntypedFormControl(this.loansAccountTermsData.product.fixedLength));
} else {
this.loansAccountTermsForm.addControl('interestRatePerPeriod', new UntypedFormControl(this.loansAccountTermsData.interestRatePerPeriod, Validators.required));
}
}
}
hasFixedLength(): boolean {
if (this.loansAccountTermsData) {
return this.loansAccountTermsData.product.fixedLength ? true : false;
}
return false;
}
isEqualPrincipalPayments(): boolean {
return (this.loansAccountTermsForm.value.amortizationType === 0);
}
/** Create Loans Account Terms Form */
createloansAccountTermsForm() {
this.loansAccountTermsForm = this.formBuilder.group({
'principalAmount': ['', Validators.required],
'loanTermFrequency': [{ value: '', disabled: true }, Validators.required],
'loanTermFrequencyType': ['', Validators.required],
'numberOfRepayments': ['', Validators.required],
'repaymentEvery': ['', Validators.required],
'repaymentFrequencyType': [{ value: '', disabled: true }, Validators.required],
'repaymentFrequencyNthDayType': [''],
'repaymentFrequencyDayOfWeekType': [''],
'repaymentsStartingFromDate': [''],
'interestChargedFromDate': [''],
'interestRatePerPeriod': [''],
'interestType': [''],
'isFloatingInterestRate': [''],
'isEqualAmortization': [''],
'amortizationType': ['', Validators.required],
'interestCalculationPeriodType': [''],
'allowPartialPeriodInterestCalcualtion': [''],
'inArrearsTolerance': [''],
'graceOnInterestCharged': [''],
'graceOnPrincipalPayment': [''],
'graceOnInterestPayment': [''],
'graceOnArrearsAgeing': [''],
'loanIdToClose': [''],
'fixedEmiAmount': [''],
'isTopup': [''],
'maxOutstandingLoanBalance': [''],
'interestRateDifferential': [''],
'transactionProcessingStrategyCode': ['', Validators.required],
'multiDisburseLoan': [false],
'interestRateFrequencyType': [''],
'balloonRepaymentAmount': ['']
});
}
calculateLoanTerm(numberOfRepayments: number, repaymentEvery: number): void {
const loanTerm = numberOfRepayments * repaymentEvery;
this.loansAccountTermsForm.patchValue({'loanTermFrequency': loanTerm});
}
/**
* Gets the Disbursement Data array.
* @returns {Array} Disbursement Data array.
*/
get disbursementData() {
return {
disbursementData: this.disbursementDataSource
};
}
/**
* Adds the Disbursement Data entry form to given Disbursement Data entry.
*/
addDisbursementDataEntry() {
const currentPrincipalAmount = this.loansAccountTermsForm.get('principalAmount').value;
const formfields: FormfieldBase[] = [
new DatepickerBase({
controlName: 'expectedDisbursementDate',
label: 'Expected Disbursement Date',
value: new Date() || '',
type: 'datetime-local',
minDate: this.minDate,
maxDate: this.maxDate,
required: true,
order: 1
}),
new InputBase({
controlName: 'principal',
label: `Principal(It should be less than equal to the ${currentPrincipalAmount})`,
value: '',
type: 'number',
required: true,
order: 2
})
];
const data = {
title: 'Add Disbursement Details',
layout: { addButtonText: 'Add' },
formfields: formfields
};
const disbursementDialogRef = this.dialog.open(FormDialogComponent, { data });
disbursementDialogRef.afterClosed().subscribe((response: any) => {
if (response.data) {
const principal = response.data.value.principal * 1;
if ((this.totalMultiDisbursed + principal) <= currentPrincipalAmount) {
this.disbursementDataSource = this.disbursementDataSource.concat(response.data.value);
this.totalMultiDisbursed += principal;
this.isMultiDisbursedCompleted = (this.totalMultiDisbursed === currentPrincipalAmount);
this.pristine = false;
}
}
});
}
/**
* Removes the Disbursement Data entry form from given Disbursement Data entry form array at given index.
* @param {number} index Array index from where Disbursement Data entry form needs to be removed.
*/
removeDisbursementDataEntry(index: number) {
const currentPrincipalAmount = this.loansAccountTermsForm.get('principalAmount').value;
const dialogRef = this.dialog.open(DeleteDialogComponent, {
data: { deleteContext: `this` }
});
dialogRef.afterClosed().subscribe((response: any) => {
if (response.delete) {
const principal = this.disbursementDataSource[index]['principal'] * 1;
this.disbursementDataSource.splice(index, 1);
this.disbursementDataSource = this.disbursementDataSource.concat([]);
this.totalMultiDisbursed -= principal;
this.isMultiDisbursedCompleted = (this.totalMultiDisbursed === currentPrincipalAmount);
}
});
}
/**
* Add a Collateral to the loan
*/
addCollateral() {
const addCollateralDialogRef = this.dialog.open(LoansAccountAddCollateralDialogComponent, {
data: { collateralOptions: this.collateralOptions }
});
addCollateralDialogRef.afterClosed().subscribe((response: any) => {
if (response.data) {
const collateralData = {
type: response.data.value.collateral,
value: response.data.value.quantity,
};
this.totalCollateralValue += collateralData.type.pctToBase * collateralData.type.basePrice * collateralData.value / 100;
this.collateralDataSource = this.collateralDataSource.concat(collateralData);
this.collateralOptions = this.collateralOptions.filter((user: any) => user.collateralId !== response.data.value.collateral.collateralId);
if (this.loanPrincipal < this.totalCollateralValue) {
this.isCollateralSufficient = true;
} else {
this.isCollateralSufficient = false;
}
}
});
}
/**
* Delete a added collateral from loan
* @param id ID od the collateral to be deleted
*/
deleteCollateral(id: any) {
const deleteCollateralDialogRef = this.dialog.open(DeleteDialogComponent, {
data: { deleteContext: `collateral` }
});
deleteCollateralDialogRef.afterClosed().subscribe((response: any) => {
if (response.delete) {
const removed: any = this.collateralDataSource.splice(id, 1);
this.collateralOptions = this.collateralOptions.concat(removed[0].type);
this.totalCollateralValue -= removed[0].type.pctToBase * removed[0].type.basePrice * removed[0].value / 100;
this.collateralDataSource = this.collateralDataSource.concat([]);
this.pristine = false;
if (this.loanPrincipal < this.totalCollateralValue) {
this.isCollateralSufficient = true;
} else {
this.isCollateralSufficient = false;
}
}
});
}
/**
* Sets all select dropdown options.
*/
setOptions() {
this.termFrequencyTypeData = this.loansAccountProductTemplate.termFrequencyTypeOptions;
this.repaymentFrequencyNthDayTypeData = this.loansAccountProductTemplate.repaymentFrequencyNthDayTypeOptions;
this.repaymentFrequencyDaysOfWeekTypeData = this.loansAccountProductTemplate.repaymentFrequencyDaysOfWeekTypeOptions;
this.interestTypeData = this.loansAccountProductTemplate.interestTypeOptions;
this.amortizationTypeData = this.loansAccountProductTemplate.amortizationTypeOptions;
this.interestCalculationPeriodTypeData = this.loansAccountProductTemplate.interestCalculationPeriodTypeOptions;
this.clientActiveLoanData = this.loansAccountProductTemplate.clientActiveLoanOptions;
this.loanScheduleType = this.loansAccountProductTemplate.loanScheduleType;
this.transactionProcessingStrategyOptions = [];
if (this.loanScheduleType.code === LoanProducts.LOAN_SCHEDULE_TYPE_CUMULATIVE) {
// Filter Advanced Payment Allocation Strategy
this.transactionProcessingStrategyOptions = this.loansAccountProductTemplate.transactionProcessingStrategyOptions.filter(
(cn: CodeName) => !LoanProducts.isAdvancedPaymentAllocationStrategy(cn.code)
);
this.repaymentStrategyDisabled = false;
} else {
// Only Advanced Payment Allocation Strategy
this.loansAccountProductTemplate.transactionProcessingStrategyOptions.some(
(cn: CodeName) => {
if (LoanProducts.isAdvancedPaymentAllocationStrategy(cn.code)) {
this.transactionProcessingStrategyOptions.push(cn);
}
});
this.repaymentStrategyDisabled = true;
}
}
isDelinquencyEnabled(): boolean {
if (!this.loanProduct || !this.loanProduct.delinquencyBucket) {
return false;
}
return true;
}
/**
* Returns loans account terms form value.
*/
get loansAccountTerms() {
return this.loansAccountTermsForm.getRawValue();
}
get loanCollateral() {
return {
collateral: this.collateralDataSource
};
}
}