import 'package:fintracker_api/fintracker_api.dart';
import 'package:flutter/material.dart';

import '../portfolio/labels.dart' show eventKindLabel;

export '../portfolio/labels.dart' show eventKindLabel, eventKindLabels;

/// The kinds worth offering as a filter, in the order a person scans for them: the two
/// trades first, then the payouts, then the money moving in and out. The wire enum has
/// more members (splits, amortization, the generated `unknown_default_open_api`), but a
/// dropdown listing every one of them is a worse filter than a short one.
const filterableEventKinds = [
  EventKind.buy,
  EventKind.sell,
  EventKind.dividend,
  EventKind.coupon,
  EventKind.interest,
  EventKind.commission,
  EventKind.tax,
  EventKind.deposit,
  EventKind.withdrawal,
  EventKind.transferIn,
  EventKind.transferOut,
  EventKind.fxExchange,
  EventKind.repayment,
  EventKind.other,
];

/// Statuses as a person reads them. Only `confirmed` feeds analytics, so which of these a
/// row carries is the answer to "why isn't this event in my numbers".
const eventStatusLabels = {
  'confirmed': 'Подтверждено',
  'pending': 'Ожидает',
  'shadow': 'Теневое',
  'ignored': 'Игнорируется',
};

String eventStatusLabel(EventStatus status) => eventStatusLabels[status.value] ?? status.value;

/// Icon and colour per kind, on the same principle as the transaction list: money coming
/// in is green, money leaving is the error colour, everything structural is neutral.
(IconData, Color) eventKindIcon(EventKind kind, ColorScheme scheme) => switch (kind) {
      EventKind.buy => (Icons.add_shopping_cart, scheme.primary),
      EventKind.sell => (Icons.sell_outlined, Colors.deepPurple),
      EventKind.dividend || EventKind.coupon || EventKind.interest => (
          Icons.payments_outlined,
          Colors.green,
        ),
      EventKind.taxRefund => (Icons.assignment_return_outlined, Colors.green),
      EventKind.tax || EventKind.commission => (Icons.receipt_outlined, scheme.error),
      EventKind.deposit => (Icons.arrow_circle_down_outlined, Colors.green),
      EventKind.withdrawal => (Icons.arrow_circle_up_outlined, scheme.error),
      EventKind.transferIn || EventKind.transferOut => (Icons.swap_horiz, scheme.primary),
      EventKind.fxExchange => (Icons.currency_exchange, Colors.amber),
      EventKind.split || EventKind.amortization || EventKind.repayment => (
          Icons.call_split,
          scheme.outline,
        ),
      EventKind.other || EventKind.unknownDefaultOpenApi => (Icons.help_outline, scheme.outline),
    };

/// `'Покупка · SBER'`, the one-line identity of a row. Events with no instrument behind
/// them (deposits, fees) keep just the kind.
String eventTitle(EventKind kind, String? ticker) =>
    ticker == null || ticker.isEmpty ? eventKindLabel(kind) : '${eventKindLabel(kind)} · $ticker';