/**
 * 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 { UntypedFormGroup, UntypedFormBuilder, Validators } from '@angular/forms';
import { Dates } from 'app/core/utils/dates';
import { SettingsService } from 'app/settings/settings.service';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';

@Component({
  selector: 'mifosx-savings-account-term-step',
  templateUrl: './savings-account-term-step.component.html',
  styleUrls: ['./savings-account-term-step.component.scss'],
  imports: [...STANDALONE_SHARED_IMPORTS]
})
export class SavingsAccountTermStepComponent implements OnInit {
  private formBuilder = inject(UntypedFormBuilder);
  private dateUtils = inject(Dates);
  private settingsService = inject(SettingsService);

  private _savingsAccountProductTemplate: any;

  @Input()
  set savingsAccountProductTemplate(value: any) {
    this._savingsAccountProductTemplate = value;
    if (value && this.savingsAccountTermForm) {
      this.applyTemplate(value);
    }
  }
  get savingsAccountProductTemplate(): any {
    return this._savingsAccountProductTemplate;
  }

  savingsAccountTermForm: UntypedFormGroup;

  interestCompoundingPeriodTypeData: any[] = [];
  interestPostingPeriodTypeData: any[] = [];
  interestCalculationTypeData: any[] = [];
  interestCalculationDaysInYearTypeData: any[] = [];
  interestCalculateSelectorData: any[] = [];
  periodFrequencyData: any[] = [];

  yesNoOptions = [
    { value: true, label: 'Yes' },
    { value: false, label: 'No' }
  ];

  minDate = new Date(2000, 0, 1);
  maxDate = new Date();

  constructor() {
    this.createForm();
  }

  createForm() {
    this.savingsAccountTermForm = this.formBuilder.group({
      currencyCode: [{ value: '', disabled: true }],
      nominalAnnualInterestRate: [
        '',
        [
          Validators.required,
          Validators.min(0)
        ]
      ],
      interestCompoundingPeriodType: [
        '',
        Validators.required
      ],
      interestPostingPeriodType: [
        '',
        Validators.required
      ],
      interestCalculationType: [
        '',
        Validators.required
      ],
      interestCalculationDaysInYearType: [
        '',
        Validators.required
      ],
      effectiveDate: [''],
      interestCalculateSelector: [1],
      averagePeriod: ['Monthly'],
      autoPost: [true],
      frequencyFixDay: [
        30,
        [Validators.min(0)]
      ],
      lastInterestDate: ['']
    });
  }

  ngOnInit() {
    this.maxDate = this.settingsService.businessDate;
    // Apply template if it was set before the form was ready
    if (this._savingsAccountProductTemplate) {
      this.applyTemplate(this._savingsAccountProductTemplate);
    }
  }

  private applyTemplate(t: any) {
    this.maxDate = this.settingsService.businessDate;

    this.interestCompoundingPeriodTypeData = t.interestCompoundingPeriodTypeOptions || [];
    this.interestPostingPeriodTypeData = t.interestPostingPeriodTypeOptions || [];
    this.interestCalculationTypeData = t.interestCalculationTypeOptions || [];
    this.interestCalculateSelectorData = t.interestCalculationTypeOption || [];
    this.interestCalculationDaysInYearTypeData = t.interestCalculationDaysInYearTypeOptions || [];
    this.periodFrequencyData = t.periodFrequencyOptions?.length ? t.periodFrequencyOptions : [
          { value: 'Monthly' },
          { value: 'Quarterly' },
          { value: 'Half Yearly' },
          { value: 'Yearly' }];

    const defaultPeriod = this.periodFrequencyData[0]?.value || 'Monthly';
    const savedEnumTypeId = t.interestCalculationType?.id || this.interestCalculationTypeData?.[0]?.id || 1;
    const savedSelectorId = t.interestCalculateSelector ?? this.interestCalculateSelectorData?.[0]?.id ?? null;

    this.savingsAccountTermForm.patchValue({
      currencyCode: t.currency?.code,
      nominalAnnualInterestRate: t.nominalAnnualInterestRate,
      interestCompoundingPeriodType: t.interestCompoundingPeriodType?.id,
      interestPostingPeriodType: t.interestPostingPeriodType?.id,
      interestCalculationType: savedEnumTypeId,
      interestCalculationDaysInYearType: t.interestCalculationDaysInYearType?.id,
      effectiveDate: t.effectiveDate ? new Date(t.effectiveDate) : '',
      interestCalculateSelector: savedSelectorId,
      averagePeriod: t.averagePeriod || defaultPeriod,
      autoPost: t.autoPost ?? true,
      frequencyFixDay: t.frequencyFixDay ?? 30,
      lastInterestDate: t.lastInterestDate ? new Date(t.lastInterestDate) : ''
    });
  }

  get savingsAccountTerms() {
    const value = { ...this.savingsAccountTermForm.getRawValue() };
    const dateFormat = this.settingsService.dateFormat;

    if (value.effectiveDate instanceof Date) {
      value.effectiveDate = this.dateUtils.formatDate(value.effectiveDate, dateFormat) || '';
    }
    if (value.lastInterestDate instanceof Date) {
      value.lastInterestDate = this.dateUtils.formatDate(value.lastInterestDate, dateFormat) || '';
    }

    delete value.currencyCode;
    return value;
  }
}