/**
 * 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, inject } from '@angular/core';
import { UntypedFormBuilder, UntypedFormGroup, Validators } from '@angular/forms';
import { MatIconModule } from '@angular/material/icon';
import { MatButtonModule } from '@angular/material/button';
import { MatSnackBar, MatSnackBarModule } from '@angular/material/snack-bar';
import { FaIconComponent } from '@fortawesome/angular-fontawesome';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';

/** Custom Services */
import { ChequeBookService } from '../chequebook.service';

/**
 * The teller/counter quick-lookup: given a bare cheque-leaf serial number, is it active, stopped, lost, or
 * was it ever issued at all — one code path covers every case (issued or unissued-but-stolen stock).
 */
@Component({
  selector: 'mifosx-leaf-lookup',
  templateUrl: './leaf-lookup.component.html',
  styleUrls: ['./leaf-lookup.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    MatIconModule,
    MatButtonModule,
    MatSnackBarModule,
    FaIconComponent
  ]
})
export class LeafLookupComponent {
  private formBuilder = inject(UntypedFormBuilder);
  private chequeBookService = inject(ChequeBookService);
  private snackBar = inject(MatSnackBar);

  private notify(message: string, isError = false): void {
    this.snackBar.open(message, 'Dismiss', { duration: isError ? 6000 : 3000 });
  }

  searchForm: UntypedFormGroup;
  // a bare serial number is only unique within its own series — more than one series can share a number,
  // so the lookup can legitimately return more than one match
  results: any[] = [];
  searched = false;
  busy = false;

  constructor() {
    this.searchForm = this.formBuilder.group({
      serialNo: [
        '',
        Validators.required
      ]
    });
  }

  search(): void {
    if (this.searchForm.invalid || this.busy) {
      return;
    }
    this.busy = true;
    this.searched = true;
    this.results = [];
    this.chequeBookService.lookupLeaf(this.searchForm.value.serialNo).subscribe({
      next: (data: any) => {
        this.busy = false;
        this.results = Array.isArray(data) ? data : [data];
      },
      error: () => {
        this.busy = false;
        this.results = [];
        this.notify('No cheque leaf found with that serial number', true);
      }
    });
  }
}