/**
 * 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, inject } from '@angular/core';
import { CommonModule } from '@angular/common';
import { ReactiveFormsModule, FormBuilder, FormGroup, Validators } from '@angular/forms';
import { MatCardModule } from '@angular/material/card';
import { MatFormFieldModule } from '@angular/material/form-field';
import { MatInputModule } from '@angular/material/input';
import { MatButtonModule } from '@angular/material/button';
import { MatSelectModule } from '@angular/material/select';
import { MatDatepickerModule } from '@angular/material/datepicker';
import { MatProgressSpinnerModule } from '@angular/material/progress-spinner';
import { MatSnackBar, MatSnackBarModule } from '@angular/material/snack-bar';
import { MatDialogModule, MatDialog } from '@angular/material/dialog';
import { FaIconComponent } from '@fortawesome/angular-fontawesome';
import { TranslateModule } from '@ngx-translate/core';
import { CfcfrmsService } from '../cfcfrms.service';
import { ConfirmDialogComponent } from '../components/confirm-dialog/confirm-dialog.component';

@Component({
  selector: 'mifosx-cfcfrms-report-suspect',
  standalone: true,
  templateUrl: './report-suspect.component.html',
  styleUrls: ['./report-suspect.component.scss'],
  imports: [
    CommonModule,
    ReactiveFormsModule,
    MatCardModule,
    MatFormFieldModule,
    MatInputModule,
    MatButtonModule,
    MatSelectModule,
    MatDatepickerModule,
    MatProgressSpinnerModule,
    MatSnackBarModule,
    MatDialogModule,
    FaIconComponent,
    TranslateModule
  ]
})
export class ReportSuspectComponent {
  private fb = inject(FormBuilder);
  private service = inject(CfcfrmsService);
  private snackBar = inject(MatSnackBar);
  private dialog = inject(MatDialog);

  form: FormGroup = this.fb.group({
    accountNumber: [
      '',
      [
        Validators.required,
        Validators.minLength(8)
      ]
    ],
    accountName: [
      '',
      Validators.required
    ],
    bankIfsc: [
      'LINC0000001',
      [
        Validators.required,
        Validators.pattern(/^[A-Z]{4}0[A-Z0-9]{6}$/)
      ]
    ],
    suspicionReason: [
      '',
      Validators.required
    ],
    detectedBy: [
      '',
      Validators.required
    ],
    detectedOn: [
      '',
      Validators.required
    ],
    linkedTransactions: [''],
    remarks: ['']
  });

  isSubmitting = false;
  result: any = null;

  suspicionReasons = [
    'Unusual transaction pattern',
    'Multiple fraud complaints linked',
    'High-value transactions to unknown beneficiaries',
    'Account used as pass-through',
    'KYC document mismatch',
    'Tip-off from law enforcement',
    'Internal fraud detection system alert',
    'Other'
  ];

  onSubmit(): void {
    if (this.form.invalid) {
      this.form.markAllAsTouched();
      return;
    }

    const dialogRef = this.dialog.open(ConfirmDialogComponent, {
      data: { title: 'Confirm Report', message: 'Are you sure you want to report this suspect account to I4C?' }
    });

    dialogRef.afterClosed().subscribe((confirmed) => {
      if (!confirmed) return;
      this.isSubmitting = true;
      const val = this.form.value;
      const payload = {
        ...val,
        detectedOn: new Date(val.detectedOn).toISOString(),
        linkedTransactions: val.linkedTransactions
          ? val.linkedTransactions
              .split(',')
              .map((s: string) => s.trim())
              .filter(Boolean)
          : []
      };

      this.service.reportSuspect(payload).subscribe({
        next: (res) => {
          this.result = res;
          this.isSubmitting = false;
          this.snackBar.open('Suspect account reported successfully', 'OK', { duration: 4000 });
        },
        error: () => {
          this.isSubmitting = false;
          this.snackBar.open('Failed to report suspect account', 'OK', { duration: 4000 });
        }
      });
    });
  }

  resetForm(): void {
    this.form.reset({ bankIfsc: 'LINC0000001' });
    this.result = null;
  }
}