/**
 * 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 { CurrencyPipe, DatePipe } from '@angular/common';
import { Router } from '@angular/router';
import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
import { MatButton } from '@angular/material/button';
import { FaIconComponent } from '@fortawesome/angular-fontawesome';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';

/** What the account view hands the dialog: the line, its account, and how to name its type. */
export interface DdsTransactionViewData {
  transaction: any;
  account: any;
  typeLabel: string;
  /** Opened from the Receipt menu item: print the receipt straight away. */
  printOnOpen?: boolean;
}

/**
 * One DDS passbook line in full - everything the line was saved with - the way a savings account's
 * View Transaction shows one: what it was, when, how much, and who keyed it, with the voucher, its
 * own reference and the journal it was booked under. Prints as a receipt.
 */
@Component({
  selector: 'mifosx-dds-transaction-view-dialog',
  templateUrl: './dds-transaction-view-dialog.component.html',
  styleUrls: ['./dds-transaction-view-dialog.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    CurrencyPipe,
    DatePipe,
    MatButton,
    FaIconComponent
  ]
})
export class DdsTransactionViewDialogComponent {
  private dialogRef = inject(MatDialogRef<DdsTransactionViewDialogComponent>);
  private router = inject(Router);
  data = inject<DdsTransactionViewData>(MAT_DIALOG_DATA);

  get txn(): any {
    return this.data.transaction || {};
  }

  get account(): any {
    return this.data.account || {};
  }

  get isCredit(): boolean {
    return this.txn.direction === 'CREDIT';
  }

  get currency(): string {
    return this.account.currencyCode || 'INR';
  }

  constructor() {
    if (this.data.printOnOpen) {
      // After the view has drawn, so the receipt has something in it to print.
      setTimeout(() => this.printReceipt(), 300);
    }
  }

  viewJournalEntries(): void {
    if (!this.txn.journalTransactionId) {
      return;
    }
    this.dialogRef.close();
    this.router.navigate([
      '/',
      'journal-entry',
      'view',
      this.txn.journalTransactionId
    ]);
  }

  /** The receipt block alone, in a window of its own - as the savings receipt prints. */
  printReceipt(): void {
    const receipt = document.getElementById('dds-txn-receipt');
    const popup = window.open('', '_blank', 'width=720,height=800');
    if (!receipt || !popup) {
      return;
    }
    popup.document.write(`<html><head><title>${this.txn.refNo || 'DDS'} Receipt</title><style>
      body { font-family: Arial, sans-serif; font-size: 12px; color: #111; margin: 24px; }
      h2 { margin: 0 0 4px; font-size: 16px; } .muted { color: #555; }
      table { width: 100%; border-collapse: collapse; margin-top: 12px; }
      td { padding: 6px 8px; border-bottom: 1px solid #ddd; vertical-align: top; }
      td.k { width: 38%; color: #555; } .amount { font-size: 18px; font-weight: 700; }
      .sign { margin-top: 48px; display: flex; justify-content: space-between; }
    </style></head><body>${receipt.innerHTML}
      <div class="sign"><span>Customer</span><span>Authorised Signatory</span></div>
    </body></html>`);
    popup.document.close();
    popup.focus();
    popup.print();
  }

  close(): void {
    this.dialogRef.close();
  }
}