445 lines
13 KiB
Dart
445 lines
13 KiB
Dart
/// One shopping trip: receipt photo, supermarket, products and costs.
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library;
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'models/line_item.dart';
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import 'models/shop.dart';
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import 'product_detail_screen.dart';
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import 'services/product_repository.dart';
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import 'utils/dates.dart';
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import 'utils/money.dart';
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import 'widgets/confirm_dialog.dart';
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import 'widgets/item_edit_sheet.dart';
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import 'widgets/name_dialog.dart';
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import 'widgets/tag_editor.dart';
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class ShopDetailScreen extends StatefulWidget {
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const ShopDetailScreen({
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super.key,
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required this.repository,
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required this.shopId,
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});
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final ProductRepository repository;
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final int shopId;
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@override
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State<ShopDetailScreen> createState() => _ShopDetailScreenState();
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}
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class _ShopDetailScreenState extends State<ShopDetailScreen> {
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Shop? _shop;
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List<ShopItem>? _items;
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Object? _error;
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bool _editing = false;
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List<String> _tagSuggestions = [];
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int _loadToken = 0;
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@override
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void initState() {
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super.initState();
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widget.repository.addListener(_load);
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_load();
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widget.repository
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.getUsedShopTags()
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.then((tags) {
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if (mounted) setState(() => _tagSuggestions = tags);
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})
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.catchError((_) {});
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}
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@override
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void dispose() {
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widget.repository.removeListener(_load);
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super.dispose();
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}
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Future<void> _load() async {
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final token = ++_loadToken;
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try {
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final shop = await widget.repository.getShop(widget.shopId);
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if (shop == null) throw StateError('Shop not found');
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final items = await widget.repository.getShopItems(widget.shopId);
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if (!mounted || token != _loadToken) return;
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setState(() {
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_shop = shop;
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_items = items;
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_error = null;
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});
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} catch (error) {
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if (!mounted || token != _loadToken) return;
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setState(() => _error = error);
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}
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}
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Future<void> _openReceipt(File file) async {
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await showDialog<void>(
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context: context,
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builder: (context) {
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return Dialog(
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insetPadding: const EdgeInsets.all(16),
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child: InteractiveViewer(
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child: Image.file(file, fit: BoxFit.contain),
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),
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);
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},
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);
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}
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Future<void> _openProduct(int productId) async {
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await Navigator.of(context).push<void>(
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MaterialPageRoute(
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builder: (_) => ProductDetailScreen(
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repository: widget.repository,
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productId: productId,
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),
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),
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);
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}
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Future<void> _addItem() async {
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final shop = _shop;
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if (shop == null) return;
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final result = await showItemEditSheet(context);
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if (result == null || !mounted) return;
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final pendingId = -DateTime.now().microsecondsSinceEpoch;
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final pending = ShopItem(
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id: pendingId,
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shopId: shop.id,
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name: result.name,
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price: result.price,
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quantity: result.quantity,
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unitPrice: result.unitPrice,
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);
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setState(() {
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_items = [...?_items, pending];
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_shop = Shop(
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id: shop.id,
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supermarket: shop.supermarket,
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shoppedAt: shop.shoppedAt,
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total: roundMoney(shop.total + result.price),
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itemCount: shop.itemCount + 1,
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name: shop.name,
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receiptImagePath: shop.receiptImagePath,
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tags: shop.tags,
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);
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});
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try {
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final saved = await widget.repository.addShopItem(
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shopId: shop.id,
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item: result,
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);
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if (!mounted) return;
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setState(() {
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_items = [
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for (final entry in _items ?? const <ShopItem>[])
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if (entry.id == pendingId) saved else entry,
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];
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});
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} catch (_) {
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if (!mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Could not add this product.')),
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);
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_load();
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}
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}
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Future<void> _editItem(ShopItem item) async {
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final result = await showItemEditSheet(
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context,
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item: LineItem(
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id: '${item.id}',
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name: item.name,
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price: item.price,
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quantity: item.quantity,
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unitPrice: item.unitPrice,
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),
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);
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if (result == null || !mounted) return;
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await widget.repository.updateShopItem(
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id: item.id,
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name: result.name,
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price: result.price,
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quantity: result.quantity,
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unitPrice: result.unitPrice,
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);
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if (mounted) _load();
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}
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Future<void> _removeItem(ShopItem item) async {
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final confirmed = await confirmAction(
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context,
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title: 'Remove item?',
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message:
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'"${item.name}" will be removed from this trip. The product stays in your catalog.',
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confirmLabel: 'Remove',
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);
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if (!confirmed || !mounted) return;
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final isLastItem = (_items?.length ?? 0) == 1;
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final shop = _shop;
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setState(() {
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_items = [
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for (final entry in _items ?? const <ShopItem>[])
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if (entry.id != item.id) entry,
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];
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if (shop != null) {
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_shop = Shop(
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id: shop.id,
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supermarket: shop.supermarket,
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shoppedAt: shop.shoppedAt,
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total: roundMoney(shop.total - item.price),
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itemCount: shop.itemCount - 1,
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name: shop.name,
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receiptImagePath: shop.receiptImagePath,
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tags: shop.tags,
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);
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}
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});
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try {
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await widget.repository.deleteShopItem(item.id);
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if (!mounted || !isLastItem || shop == null) return;
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await _confirmRemoveEmptyTrip(shop);
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} catch (_) {
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if (mounted) _load();
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}
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}
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Future<void> _confirmRemoveEmptyTrip(Shop shop) async {
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final removeTrip = await confirmAction(
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context,
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title: 'Remove trip?',
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message:
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'This trip has no products left. Remove it from your shop log? '
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'Products from this trip stay in your catalog.',
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confirmLabel: 'Remove trip',
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);
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if (!mounted) return;
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if (!removeTrip) return;
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try {
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await widget.repository.deleteShop(shop.id);
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if (mounted) Navigator.of(context).pop();
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} catch (_) {
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if (!mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Could not remove this trip.')),
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);
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_load();
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}
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}
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Future<void> _editName(Shop shop) async {
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final name = await showNameDialog(
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context,
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title: 'Trip name',
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label: 'Name',
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initial: shop.name,
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allowEmpty: true,
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);
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if (name == null || !mounted) return;
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await widget.repository.updateShop(
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id: shop.id,
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name: name,
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clearName: name.isEmpty,
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);
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if (mounted) _load();
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}
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Future<void> _editDate(Shop shop) async {
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final picked = await showDatePicker(
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context: context,
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initialDate: shop.shoppedAt,
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firstDate: DateTime(2018),
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lastDate: DateTime.now().add(const Duration(days: 1)),
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);
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if (picked == null || !mounted) return;
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await widget.repository.updateShop(
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id: shop.id,
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shoppedAt: DateTime(picked.year, picked.month, picked.day),
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);
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if (mounted) _load();
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}
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Future<void> _setTags(Shop shop, List<String> tags) async {
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await widget.repository.updateShop(id: shop.id, tags: tags);
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if (mounted) _load();
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}
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Widget? _itemSubtitle(ShopItem item) {
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final parts = [
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if (item.quantity != null)
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'${item.quantity} × ${formatEuro(item.unitPrice ?? 0)}',
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if (_editing) formatEuro(item.price),
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];
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if (parts.isEmpty) return null;
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return Text(parts.join(' · '));
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Scaffold(
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appBar: AppBar(
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title: const Text('Shopping trip'),
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actions: [
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IconButton(
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tooltip: _editing ? 'Done' : 'Edit',
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onPressed: () => setState(() => _editing = !_editing),
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icon: Icon(_editing ? Icons.check : Icons.edit_outlined),
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),
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],
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),
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floatingActionButton: _editing
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? FloatingActionButton.extended(
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onPressed: _addItem,
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icon: const Icon(Icons.add),
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label: const Text('Add product'),
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)
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: null,
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body: Builder(
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builder: (context) {
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if (_error != null) {
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return Center(
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child: Text(
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'Could not load this trip.',
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style: theme.textTheme.bodyLarge,
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),
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);
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}
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final shop = _shop;
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final items = _items;
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if (shop == null || items == null) {
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return const Center(child: CircularProgressIndicator());
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}
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final receipt = shop.receiptImagePath;
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final receiptFile = receipt == null ? null : File(receipt);
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final hasReceipt = receiptFile != null && receiptFile.existsSync();
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return ListView(
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padding: const EdgeInsets.fromLTRB(16, 8, 16, 96),
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children: [
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if (_editing)
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ListTile(
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contentPadding: EdgeInsets.zero,
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title: Text(
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shop.name?.isNotEmpty == true
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? shop.name!
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: 'Add a trip name',
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),
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subtitle: const Text('Optional name for this shop log'),
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trailing: const Icon(Icons.edit_outlined),
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onTap: () => _editName(shop),
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)
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else
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Text(shop.displayName, style: theme.textTheme.headlineMedium),
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if (_editing || (shop.name != null && shop.name!.isNotEmpty)) ...[
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const SizedBox(height: 4),
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Text(shop.supermarket, style: theme.textTheme.titleMedium),
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],
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const SizedBox(height: 4),
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if (_editing)
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ListTile(
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contentPadding: EdgeInsets.zero,
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title: Text(formatDate(shop.shoppedAt)),
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subtitle: const Text('Trip date'),
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trailing: const Icon(Icons.calendar_today_outlined),
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onTap: () => _editDate(shop),
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)
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else
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Text(
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formatDate(shop.shoppedAt),
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style: theme.textTheme.bodyLarge,
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),
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if (_editing) ...[
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const SizedBox(height: 16),
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TagEditor(
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tags: shop.tags,
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suggestions: _tagSuggestions,
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onChanged: (tags) => _setTags(shop, tags),
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),
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] else if (shop.tags.isNotEmpty) ...[
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const SizedBox(height: 12),
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TagChips(tags: shop.tags),
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],
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if (hasReceipt) ...[
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const SizedBox(height: 16),
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GestureDetector(
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onTap: () => _openReceipt(receiptFile),
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child: ClipRRect(
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borderRadius: BorderRadius.circular(16),
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child: Image.file(
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receiptFile,
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height: 180,
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width: double.infinity,
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fit: BoxFit.cover,
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cacheWidth: 900,
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),
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),
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),
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],
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const SizedBox(height: 24),
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Text('Products', style: theme.textTheme.titleMedium),
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const SizedBox(height: 8),
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if (items.isEmpty)
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Text(
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'No items on this trip.',
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style: theme.textTheme.bodyLarge,
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),
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for (final item in items)
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ListTile(
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contentPadding: EdgeInsets.zero,
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title: Text(item.name),
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subtitle: _itemSubtitle(item),
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trailing: _editing
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? Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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IconButton(
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tooltip: 'Edit',
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visualDensity: VisualDensity.compact,
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onPressed: () => _editItem(item),
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icon: const Icon(Icons.edit_outlined),
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),
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IconButton(
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tooltip: 'Remove',
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visualDensity: VisualDensity.compact,
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onPressed: () => _removeItem(item),
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icon: const Icon(Icons.delete_outline),
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),
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],
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)
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: Text(
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formatEuro(item.price),
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style: theme.textTheme.titleMedium,
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),
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onTap: _editing || item.productId == null
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? null
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: () => _openProduct(item.productId!),
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),
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const Divider(),
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ListTile(
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contentPadding: EdgeInsets.zero,
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title: Text('Total', style: theme.textTheme.titleMedium),
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trailing: Text(
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formatEuro(shop.total),
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style: theme.textTheme.titleLarge,
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),
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),
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],
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);
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},
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),
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);
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}
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}
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