/**
 * 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, Input } from '@angular/core';
import { CommonModule } from '@angular/common';

/** Where a voucher stands after a voucher correction. */
export type VoucherStatus =
  | 'ACTIVE'
  | 'REVOKED'
  | 'UNPASS_PENDING'
  | 'UNPASSED'
  | 'CORRECTION_PENDING'
  | 'CORRECTED'
  | 'CLOSED'
  | null
  | undefined;

/**
 * A small badge saying whether a voucher was revoked, is under correction, or replaced another one.
 * Nothing is shown for an ordinary (active) voucher, so the registers read as before.
 */
@Component({
  selector: 'mifosx-voucher-status',
  standalone: true,
  imports: [CommonModule],
  template: `
    @if (label) {
      <span class="vs" [class]="'vs vs--' + status" [title]="hint">{{ label }}</span>
      @if (note) {
        <div class="vs-note">{{ note }}</div>
      }
    }
  `,
  styles: [
    `
      .vs {
        display: inline-block;
        margin-left: 6px;
        padding: 1px 8px;
        border-radius: 999px;
        background: #e2e8f0;
        color: #334155;
        font-size: 10px;
        font-weight: 700;
        white-space: nowrap;
        vertical-align: middle;
      }

      .vs-note {
        margin-top: 2px;
        max-width: 280px;
        font-size: 11px;
        line-height: 1.3;
        color: #64748b;
      }

      .vs--REVOKED {
        background: #fee2e2;
        color: #991b1b;
      }

      .vs--UNPASS_PENDING,
      .vs--CORRECTION_PENDING {
        background: #fef3c7;
        color: #92400e;
      }

      .vs--UNPASSED {
        background: #dbeafe;
        color: #1e40af;
      }

      .vs--CLOSED {
        background: #f1f5f9;
        color: #475569;
      }

      .vs--CORRECTED {
        background: #d1fae5;
        color: #065f46;
      }
    `
  ]
})
export class VoucherStatusComponent {
  @Input() status: VoucherStatus;
  /** The voucher that replaced this one, when it is revoked. */
  @Input() revokedBy: string | null | undefined;
  /** The voucher this one replaced, when it is the corrected one. */
  @Input() replaces: string | null | undefined;
  /** Why: the reason the voucher was unpassed, or why the correction was closed. */
  @Input() note: string | null | undefined;

  get label(): string {
    switch (this.status) {
      case 'REVOKED':
        return this.revokedBy ? `Revoked → ${this.revokedBy}` : 'Revoked';
      case 'UNPASS_PENDING':
        return 'Unpass pending';
      case 'UNPASSED':
        return 'Unpassed';
      case 'CORRECTION_PENDING':
        return 'Correction pending';
      case 'CLOSED':
        return 'Closed — cashier deposits separately';
      case 'CORRECTED':
        return this.replaces ? `Corrected (replaces ${this.replaces})` : 'Corrected';
      default:
        return '';
    }
  }

  get hint(): string {
    switch (this.status) {
      case 'REVOKED':
        return 'This voucher was revoked: its deposit was moved to another account and a new voucher replaced it.';
      case 'UNPASS_PENDING':
        return 'A manager has not yet approved unpassing this voucher.';
      case 'UNPASSED':
        return 'Unpassed: waiting for the cashier to enter the correct account.';
      case 'CORRECTION_PENDING':
        return 'The correct account is entered; waiting for a manager to approve.';
      case 'CLOSED':
        return 'The correction was closed by the cashier; the voucher stays as it was.';
      case 'CORRECTED':
        return 'This voucher was raised by a correction and replaces the earlier one.';
      default:
        return '';
    }
  }
}