/**
 * 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 { AfterViewInit, Component, ElementRef, TemplateRef, ViewChild, inject } from '@angular/core';
import { Router, RouterLink } from '@angular/router';

/** Custom Services */
import { ConfigurationWizardService } from '../configuration-wizard/configuration-wizard.service';
import { PopoverService } from '../configuration-wizard/popover/popover.service';
import { MatNavList, MatListItem } from '@angular/material/list';
import { MatIcon } from '@angular/material/icon';
import { FaIconComponent } from '@fortawesome/angular-fontawesome';
import { MatLine } from '@angular/material/grid-list';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
import { DISABLED_ACCOUNTING_FEATURES } from './disabled-features';

/**
 * Accounting component.
 */
@Component({
  selector: 'mifosx-accounting',
  templateUrl: './accounting.component.html',
  styleUrls: ['./accounting.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    MatNavList,
    MatListItem,
    MatIcon,
    FaIconComponent,
    MatLine
  ]
})
export class AccountingComponent implements AfterViewInit {
  private router = inject(Router);
  private configurationWizardService = inject(ConfigurationWizardService);
  private popoverService = inject(PopoverService);

  /* Reference of Chart of Accounts */
  @ViewChild('chartofAccounts') chartofAccounts: ElementRef<any>;
  /* Template for popover on Chart of Accounts */
  @ViewChild('templateChartofAccounts') templateChartofAccounts: TemplateRef<any>;
  /* Reference of Accounts Linked */
  @ViewChild('accountsLinked') accountsLinked: ElementRef<any>;
  /* Template for popover on Accounts  Linked */
  @ViewChild('templateAccountsLinked') templateAccountsLinked: TemplateRef<any>;
  /* Reference of Migrate Opening Balances */
  @ViewChild('migrateOpeningBalances') migrateOpeningBalances: ElementRef<any>;
  /* Template for popover on Migrate Opening Balances */
  @ViewChild('templateMigrateOpeningBalances') templateMigrateOpeningBalances: TemplateRef<any>;
  /* Reference of Closing Entries */
  @ViewChild('closingEntries') closingEntries: ElementRef<any>;
  /* Template for popover on Closing Entries */
  @ViewChild('templateClosingEntries') templateClosingEntries: TemplateRef<any>;
  /* Reference of Create Journal Entries */
  @ViewChild('createJournalEntries') createJournalEntries: ElementRef<any>;
  /* Template for popover on Create Journal Entries */
  @ViewChild('templateCreateJournalEntries') templateCreateJournalEntries: TemplateRef<any>;
  // Initialize an array of 10 boolean values, all set to false
  arrowBooleans: boolean[] = new Array(10).fill(false);

  /** Which accounting tiles are switched off for this installation — see disabled-features.ts. */
  disabledFeatures = DISABLED_ACCOUNTING_FEATURES;

  /**
   * Popover function
   * @param template TemplateRef<any>.
   * @param target HTMLElement | ElementRef<any>.
   * @param position String.
   * @param backdrop Boolean.
   * @param arrowNumber - The index of the boolean value to toggle.
   */
  showPopover(
    template: TemplateRef<any>,
    target: HTMLElement | ElementRef<any>,
    position: string,
    backdrop: boolean
  ): void {
    setTimeout(() => this.popoverService.open(template, target, position, backdrop, {}), 200);
  }

  /**
   * To show popover.
   */
  ngAfterViewInit() {
    if (this.configurationWizardService.showChartofAccounts) {
      setTimeout(() => {
        this.showPopover(this.templateChartofAccounts, this.chartofAccounts.nativeElement, 'bottom', true);
      });
    }
    if (this.configurationWizardService.showAccountsLinked) {
      setTimeout(() => {
        this.showPopover(this.templateAccountsLinked, this.accountsLinked.nativeElement, 'bottom', true);
      });
    }
    if (this.configurationWizardService.showMigrateOpeningBalances) {
      setTimeout(() => {
        this.showPopover(
          this.templateMigrateOpeningBalances,
          this.migrateOpeningBalances.nativeElement,
          'bottom',
          true
        );
      });
    }
    // Closing Entries and Create Journal Entries can be switched off (see disabled-features.ts), in
    // which case their tiles never render and these refs stay undefined — the wizard simply has no
    // step to point at, rather than throwing on a missing element.
    if (this.configurationWizardService.showClosingEntries && this.closingEntries) {
      setTimeout(() => {
        this.showPopover(this.templateClosingEntries, this.closingEntries.nativeElement, 'bottom', true);
      });
    }
    if (this.configurationWizardService.showCreateJournalEntries && this.createJournalEntries) {
      setTimeout(() => {
        this.showPopover(this.templateCreateJournalEntries, this.createJournalEntries.nativeElement, 'bottom', true);
      });
    }
  }

  /**
   * Next Step (Charts of Accounts Page) Configuration Wizard.
   */
  nextStepChartofAccounts() {
    this.configurationWizardService.showChartofAccounts = false;
    this.configurationWizardService.showChartofAccountsPage = true;
    this.router.navigate(['/accounting/chart-of-accounts']);
  }

  /**
   * Previous Step (Scheduler Jobs Page) Configuration Wizard.
   */
  previousStepChartofAccounts() {
    this.configurationWizardService.showChartofAccounts = false;
    this.configurationWizardService.showSchedulerJobsList = true;
    this.router.navigate(['/system/scheduler-jobs']);
  }

  /**
   * Next Step (Accounts Linked Page) Configuration Wizard.
   */
  nextStepAccountsLinked() {
    this.configurationWizardService.showAccountsLinked = false;
    this.configurationWizardService.showAccountsLinkedPage = true;
    this.router.navigate(['/accounting/financial-activity-mappings']);
  }

  /**
   * Previous Step (Create Chart of Accounts Page) Configuration Wizard.
   */
  previousStepAccountsLinked() {
    this.configurationWizardService.showAccountsLinked = false;
    this.configurationWizardService.showChartofAccountsForm = true;
    this.router.navigate(['/accounting/chart-of-accounts/gl-accounts/create']);
  }

  /**
   * Next Step (Migrate Opening Balances) Configuration Wizard.
   */
  nextStepMigrateOpeningBalances() {
    this.router.navigate(['/accounting/migrate-opening-balances']);
  }

  /**
   * Previous Step (Accounts Linked Page) Configuration Wizard.
   */
  previousStepMigrateOpeningBalances() {
    this.configurationWizardService.showMigrateOpeningBalances = false;
    this.configurationWizardService.showAccountsLinkedList = true;
    this.router.navigate(['accounting/financial-activity-mappings']);
  }

  /**
   * Next Step (Closing Entries Page) Configuration Wizard.
   */
  nextStepClosingEntries() {
    this.configurationWizardService.showClosingEntries = false;
    this.configurationWizardService.showClosingEntriesPage = true;
    this.router.navigate(['/accounting/closing-entries']);
  }

  /**
   * Previous Step (Migrate Opening Balances Page) Configuration Wizard.
   */
  previousStepClosingEntries() {
    this.configurationWizardService.showClosingEntries = false;
    this.configurationWizardService.showMigrateOpeningBalances = true;
    this.router.navigate(['/accounting/migrate-opening-balances']);
  }

  /**
   * Next Step (Create Journal Entries Page) Configuration Wizard.
   */
  nextStepCreateJournalEntries() {
    this.router.navigate(['/accounting/journal-entries/create']);
  }

  /**
   * Previous Step (Closing Entries Page) Configuration Wizard.
   */
  previousStepCreateJournalEntries() {
    this.configurationWizardService.showCreateJournalEntries = false;
    this.configurationWizardService.showClosingEntriesList = true;
    this.router.navigate(['/accounting/closing-entries']);
  }

  arrowBooleansToggle(arrowNumber: number) {
    // Toggle the boolean value at the given index
    this.arrowBooleans[arrowNumber] = !this.arrowBooleans[arrowNumber];
  }
}