/**
 * 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 { FaIconComponent } from '@fortawesome/angular-fontawesome';
import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
import { MatTooltip } from '@angular/material/tooltip';
import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';

import { NeftRtgsTxn, ProcessingState } from '../neft-rtgs-report/neft-rtgs-report.component';

export interface SenderHistoryDialogData {
  /** Sender's name as shown on the sender chip. */
  senderName: string;
  /** Picked sender account number (for exact-match filtering). */
  senderAccountNo: string;
  /** Full transaction history to filter (already-seeded mock or live API rows). */
  txns: NeftRtgsTxn[];
}

@Component({
  selector: 'mifosx-sender-history-dialog',
  templateUrl: './sender-history-dialog.component.html',
  styleUrls: ['./sender-history-dialog.component.scss'],
  imports: [
    ...STANDALONE_SHARED_IMPORTS,
    CommonModule,
    FaIconComponent,
    MatTooltip
  ]
})
export class SenderHistoryDialogComponent {
  private dialogRef = inject(MatDialogRef<SenderHistoryDialogComponent>);
  data: SenderHistoryDialogData = inject(MAT_DIALOG_DATA);

  /** Today's date as YYYY-MM-DD — matches the `valueDate` shape in the txn seed. */
  private get todayKey(): string {
    const d = new Date();
    const pad = (n: number) => String(n).padStart(2, '0');
    return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`;
  }

  /**
   * Today's NEFT/RTGS rows for this sender — matched by exact A/C number when
   * available, otherwise by case-insensitive holder name (since the demo seed
   * and operator account list don't share account numbers). Older value dates
   * are excluded; this view is intentionally a today-only snapshot.
   */
  get filteredTxns(): NeftRtgsTxn[] {
    const acc = (this.data.senderAccountNo || '').trim().toLowerCase();
    const name = (this.data.senderName || '').trim().toLowerCase();
    const today = this.todayKey;
    return (this.data.txns || []).filter((t) => {
      if (t.valueDate !== today) return false;
      if (acc && t.remitterAcc.toLowerCase() === acc) return true;
      if (name && t.remitterUser.toLowerCase() === name) return true;
      return false;
    });
  }

  // ─── KPI getters ───
  get totalCount(): number {
    return this.filteredTxns.length;
  }
  get totalAmount(): number {
    return this.filteredTxns.reduce((s, t) => s + t.amount, 0);
  }
  get settledCount(): number {
    return this.filteredTxns.filter((t) => t.processingState === 'SETTLED').length;
  }
  get pendingCount(): number {
    return this.filteredTxns.filter((t) => [
        'UPLOADED',
        'VALIDATED',
        'SENT',
        'PENDING'
      ].includes(t.processingState)).length;
  }
  get returnedCount(): number {
    return this.filteredTxns.filter((t) => t.processingState === 'RETURNED').length;
  }
  get successRate(): number {
    if (this.totalCount === 0) return 0;
    return (this.settledCount / this.totalCount) * 100;
  }

  stateColor(state: ProcessingState): string {
    switch (state) {
      case 'SETTLED':
        return 'green';
      case 'RETURNED':
        return 'red';
      case 'SENT':
        return 'blue';
      case 'VALIDATED':
        return 'teal';
      case 'UPLOADED':
        return 'amber';
      case 'PENDING':
        return 'amber';
    }
  }

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