105 lines
2.7 KiB
Dart
105 lines
2.7 KiB
Dart
import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:pshared/models/auto_refresh_mode.dart';
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import 'package:pshared/models/payment/quote/status_type.dart';
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import 'package:pshared/provider/payment/quotation/quotation.dart';
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class QuotationController extends ChangeNotifier {
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QuotationProvider? _quotation;
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Timer? _ticker;
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void update(QuotationProvider quotation) {
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if (identical(_quotation, quotation)) return;
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_quotation?.removeListener(_handleQuotationChanged);
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_quotation = quotation;
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_quotation?.addListener(_handleQuotationChanged);
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_handleQuotationChanged();
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}
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bool get isLoading => _quotation?.isLoading ?? false;
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Exception? get error => _quotation?.error;
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bool get canRefresh => _quotation?.canRefresh ?? false;
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bool get isReady => _quotation?.isReady ?? false;
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AutoRefreshMode get autoRefreshMode =>
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_quotation?.autoRefreshMode ?? AutoRefreshMode.on;
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DateTime? get quoteExpiresAt => _quotation?.quoteExpiresAt;
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Duration? get timeLeft {
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final expiresAt = quoteExpiresAt;
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if (expiresAt == null) return null;
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return expiresAt.difference(DateTime.now().toUtc());
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}
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bool get isExpired {
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final remaining = timeLeft;
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if (remaining == null) return false;
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return remaining <= Duration.zero;
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}
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QuoteStatusType get quoteStatus {
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if (isLoading) return QuoteStatusType.loading;
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if (error != null) return QuoteStatusType.error;
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if (_quotation?.quotation == null) return QuoteStatusType.missing;
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if (isExpired) return QuoteStatusType.expired;
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return QuoteStatusType.active;
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}
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bool get hasLiveQuote => isReady && _quotation?.quotation != null && !isExpired;
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void setAutoRefreshMode(AutoRefreshMode mode) {
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_quotation?.setAutoRefreshMode(mode);
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}
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void refreshQuotation() {
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_quotation?.refreshQuotation();
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}
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void _handleQuotationChanged() {
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_syncTicker();
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notifyListeners();
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}
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void _syncTicker() {
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final expiresAt = quoteExpiresAt;
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if (expiresAt == null) {
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_stopTicker();
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return;
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}
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final remaining = expiresAt.difference(DateTime.now().toUtc());
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if (remaining <= Duration.zero) {
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_stopTicker();
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return;
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}
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_ticker ??= Timer.periodic(const Duration(seconds: 1), (_) {
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final expiresAt = quoteExpiresAt;
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if (expiresAt == null) {
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_stopTicker();
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return;
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}
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final remaining = expiresAt.difference(DateTime.now().toUtc());
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if (remaining <= Duration.zero) {
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_stopTicker();
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}
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notifyListeners();
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});
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}
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void _stopTicker() {
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_ticker?.cancel();
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_ticker = null;
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}
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@override
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void dispose() {
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_quotation?.removeListener(_handleQuotationChanged);
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_stopTicker();
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super.dispose();
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}
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}
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