/**
 * 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/.
 */

/** Angular Imports */
import { Component, OnInit, inject } from '@angular/core';
import { UntypedFormBuilder, UntypedFormGroup, Validators, ReactiveFormsModule } from '@angular/forms';
import { ActivatedRoute, Router, RouterLink } from '@angular/router';
import { SettingsService } from 'app/settings/settings.service';
import { Dates } from 'app/core/utils/dates';
import { AlertService } from 'app/core/alert/alert.service';

/** Custom Services */
import { SystemService } from '../../../system.service';
import { CdkTextareaAutosize } from '@angular/cdk/text-field';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';

/**
 * Edit Configuration Component
 */
@Component({
  selector: 'mifosx-edit-configuration',
  templateUrl: './edit-configuration.component.html',
  styleUrls: ['./edit-configuration.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    CdkTextareaAutosize
  ]
})
export class EditConfigurationComponent implements OnInit {
  private formBuilder = inject(UntypedFormBuilder);
  private systemService = inject(SystemService);
  private settingsService = inject(SettingsService);
  private route = inject(ActivatedRoute);
  private router = inject(Router);
  private dateUtils = inject(Dates);
  private alertService = inject(AlertService);

  /** Minimum transaction date allowed. */
  minDate = new Date(2000, 0, 1);
  /** Maximum transaction date allowed. */
  maxDate = new Date();

  /** Global Configuration form. */
  configurationForm: UntypedFormGroup;
  /** Configuration. */
  configuration: any;

  /**
   * Retrieves the configuration data from `resolve`.
   * @param {FormBuilder} formBuilder Form Builder.
   * @param {SystemService} systemService System Service.
   * @param {SettingsService} settingsService Setting Service.
   * @param {ActivatedRoute} route Activated Route.
   * @param {Router} router Router for navigation.
   */
  constructor() {
    this.route.data.subscribe((data: { configuration: any }) => {
      this.configuration = data.configuration;
    });
  }

  /**
   * Creates and sets the configuration form.
   */
  ngOnInit() {
    this.maxDate = this.settingsService.businessDate;
    this.createConfigurationForm();
  }

  /**
   * Creates and sets the global configuration form.
   */
  createConfigurationForm() {
    this.configurationForm = this.formBuilder.group({
      name: [
        { value: this.configuration.name, disabled: true },
        Validators.required
      ],
      description: [{ value: this.configuration.description, disabled: true }],
      value: [this.configuration.value],
      stringValue: [this.configuration.stringValue],
      dateValue: [this.configuration.dateValue]
    });
  }

  /**
   * Submits the global configuration form and updates global configuration,
   * if successful redirects to view all global configurations.
   */
  submit() {
    if (
      this.configurationForm.value.value != null ||
      this.configurationForm.value.stringValue != null ||
      this.configurationForm.value.dateValue != null
    ) {
      const payload: any = {
        ...this.configurationForm.value
      };

      if (!this.configurationForm.value.stringValue) {
        delete payload.stringValue;
      }

      if (this.configurationForm.value.dateValue != null) {
        // Format the date according to the dateFormat setting
        const dateFormat = this.settingsService.dateFormat || 'dd MMMM yyyy';

        const formattedDate = this.dateUtils.formatDate(this.configurationForm.value.dateValue, dateFormat);

        if (formattedDate) {
          payload.dateValue = formattedDate;
          payload.locale = this.settingsService.language.code;
          payload.dateFormat = dateFormat;
        } else {
          // Avoid sending invalid/null date to backend
          delete payload.dateValue;
        }
      } else {
        delete payload.dateValue;
      }

      this.systemService.updateConfiguration(this.configuration.id, payload).subscribe((response: any) => {
        if (response?.rollbackTransaction) {
          this.alertService.alert({
            type: 'Success',
            message: 'Configuration update has been submitted for approval.'
          });
          this.router.navigate(['../../'], { relativeTo: this.route });
          return;
        }
        this.router.navigate(['../../'], { relativeTo: this.route });
      });
    }
  }
}