/**
 * Copyright since 2025 Mifos Initiative
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

import { Component, Input, OnInit, inject } from '@angular/core';
import { UntypedFormBuilder, UntypedFormGroup, Validators, ReactiveFormsModule } from '@angular/forms';
import { ActivatedRoute, Router, RouterLink } from '@angular/router';
import { Dates } from 'app/core/utils/dates';
import { LoansService } from 'app/loans/loans.service';
import { SettingsService } from 'app/settings/settings.service';
import { DateFormatPipe } from '../../../../pipes/date-format.pipe';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';

@Component({
  selector: 'mifosx-add-interest-pause',
  templateUrl: './add-interest-pause.component.html',
  styleUrls: ['./add-interest-pause.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    DateFormatPipe
  ]
})
export class AddInterestPauseComponent implements OnInit {
  private formBuilder = inject(UntypedFormBuilder);
  private loanService = inject(LoansService);
  private route = inject(ActivatedRoute);
  private router = inject(Router);
  private dateUtils = inject(Dates);
  private settingsService = inject(SettingsService);

  @Input() dataObject: any;
  /** Loan Id */
  loanId: string;
  /** Payment Type Options */
  paymentTypes: any;
  /** Show payment details */
  showPaymentDetails = false;
  /** Minimum Date allowed. */
  minDate = new Date(2000, 0, 1);
  /** Maximum Date allowed. */
  maxDate = new Date();
  startDate = new Date();
  maturityDate: Date | null = null;
  /** Interest Pause Loan Form */
  interestPauseLoanForm: UntypedFormGroup;

  /**
   * @param {FormBuilder} formBuilder Form Builder.
   * @param {LoansService} loanService Loan Service.
   * @param {ActivatedRoute} route Activated Route.
   * @param {Router} router Router for navigation.
   * @param {SettingsService} settingsService Settings Service
   */
  constructor() {
    this.loanId = this.route.snapshot.params['loanId'];
  }

  /**
   * Creates the Interest Pause loan form
   * and initialize with the required values
   */
  ngOnInit() {
    this.maturityDate = new Date(this.dataObject.timeline.expectedMaturityDate);
    this.maxDate = new Date(this.dataObject.timeline.expectedMaturityDate);
    this.startDate = new Date(this.settingsService.businessDate);
    if (this.startDate > this.maxDate) {
      this.startDate = this.maxDate;
    }
    this.createInterestPauseLoanForm();
  }

  /**
   * Creates the Interest Pause loan form.
   */
  createInterestPauseLoanForm() {
    this.interestPauseLoanForm = this.formBuilder.group({
      startDate: [
        this.startDate,
        Validators.required
      ],
      endDate: [
        this.startDate,
        Validators.required
      ]
    });
  }

  /** Submits the Interest Pause form */
  submit() {
    const interestPauseLoanFormData = this.interestPauseLoanForm.value;
    const locale = this.settingsService.language.code;
    const dateFormat = this.settingsService.dateFormat;
    const startDate: Date = this.interestPauseLoanForm.value.startDate;
    if (interestPauseLoanFormData.startDate instanceof Date) {
      interestPauseLoanFormData.startDate = this.dateUtils.formatDate(startDate, dateFormat);
    }
    const endDate: Date = this.interestPauseLoanForm.value.endDate;
    if (interestPauseLoanFormData.endDate instanceof Date) {
      interestPauseLoanFormData.endDate = this.dateUtils.formatDate(endDate, dateFormat);
    }
    const data = {
      ...interestPauseLoanFormData,
      dateFormat,
      locale
    };
    this.loanService.addInterestPauseToLoan(this.loanId, data).subscribe((response: any) => {
      this.router.navigate(['../../term-variations'], { relativeTo: this.route });
    });
  }
}