/**
 * 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 {
  MatTableDataSource,
  MatTable,
  MatColumnDef,
  MatHeaderCellDef,
  MatHeaderCell,
  MatCellDef,
  MatCell,
  MatHeaderRowDef,
  MatHeaderRow,
  MatRowDef,
  MatRow
} from '@angular/material/table';
import { ActivatedRoute } from '@angular/router';
import { DateFormatPipe } from '../../../pipes/date-format.pipe';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
import { isSettledShareTransaction } from 'app/shares/share-transactions.util';

/**
 * Transactions Tab Component.
 */
@Component({
  selector: 'mifosx-transactions-tab',
  templateUrl: './transactions-tab.component.html',
  styleUrls: ['./transactions-tab.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    MatTable,
    MatColumnDef,
    MatHeaderCellDef,
    MatHeaderCell,
    MatCellDef,
    MatCell,
    MatHeaderRowDef,
    MatHeaderRow,
    MatRowDef,
    MatRow,
    DateFormatPipe
  ]
})
export class TransactionsTabComponent implements OnInit {
  private route = inject(ActivatedRoute);

  /** Shares Account Data */
  shareAccountData: any;
  /** Transactions Data */
  transactionsData: any;
  /** Data source for transactions table. */
  dataSource: MatTableDataSource<any>;
  /** Columns to be displayed in transactions table — a share account's passbook: every
   *  purchase/redeem entry plus the running share balance and, for a withdrawal, the Board
   *  Resolution Number / Date of Meeting that authorised it. */
  displayedColumns: string[] = [
    'transactionDate',
    'transactionType',
    'totalShares',
    'purchasedOrRedeemedPrice',
    'chargeAmount',
    'amountRecievedOrReturned',
    'runningBalance',
    'resolutionMeeting'
  ];

  /**
   * Retrieves shares account data from `resolve`.
   * @param {ActivatedRoute} route Activated Route.
   */
  constructor() {
    this.route.parent.data.subscribe((data: { sharesAccountData: any }) => {
      this.shareAccountData = data.sharesAccountData;
      this.transactionsData = this.shareAccountData.purchasedShares
        .filter(isSettledShareTransaction)
        .slice()
        .sort((a: any, b: any) => new Date(a.purchasedDate).getTime() - new Date(b.purchasedDate).getTime());

      let runningBalance = 0;
      this.transactionsData.forEach((transaction: any) => {
        const shares = Number(transaction.numberOfShares) || 0;
        runningBalance += transaction.type.value === 'Redeem' ? -shares : shares;
        transaction.runningBalance = runningBalance;
      });
      // Passbook reads newest-first.
      this.transactionsData.reverse();
    });
  }

  ngOnInit() {
    this.dataSource = new MatTableDataSource(this.transactionsData);
  }
}