423 lines
No EOL
15 KiB
Dart
423 lines
No EOL
15 KiB
Dart
// Version: 1.9 - 見積書画面（簡素版）
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import '../models/customer.dart';
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import '../models/product.dart';
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import '../services/database_helper.dart';
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/// 見積書作成画面
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class EstimateScreen extends StatefulWidget {
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const EstimateScreen({super.key});
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@override
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State<EstimateScreen> createState() => _EstimateScreenState();
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}
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class _EstimateScreenState extends State<EstimateScreen> with SingleTickerProviderStateMixin {
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Customer? _selectedCustomer;
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List<Customer> _customers = [];
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DateTime? _expiryDate;
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// 商品リスト状態
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List<Product> _products = [];
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List<_EstimateItem> _estimateItems = <_EstimateItem>[];
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double _totalAmount = 0.0;
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String _estimateNumber = '';
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@override
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void initState() {
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super.initState();
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_loadCustomers();
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_generateEstimateNumber();
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_loadProducts();
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}
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Future<void> _loadCustomers() async {
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try {
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final customers = await DatabaseHelper.instance.getCustomers();
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if (mounted) setState(() => _customers = customers ?? const <Customer>[]);
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} catch (e) {}
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}
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/// 見積書番号を自動生成（YMM-0001 形式）
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void _generateEstimateNumber() {
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final now = DateTime.now();
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final yearMonth = '${now.year}${now.month.toString().padLeft(2, '0')}';
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if (mounted) setState(() => _estimateNumber = '$yearMonth-0001');
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}
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Future<void> _loadProducts() async {
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try {
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final ps = await DatabaseHelper.instance.getProducts();
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if (mounted) setState(() => _products = ps ?? const <Product>[]);
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} catch (e) {}
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}
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/// 商品を検索して見積項目に追加
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Future<void> searchProduct(String keyword) async {
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if (!mounted || keyword.isEmpty || keyword.contains(' ')) return;
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final keywordLower = keyword.toLowerCase();
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final matchedProducts = _products.where((p) =>
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(p.name?.toLowerCase() ?? '').contains(keywordLower) ||
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(p.productCode ?? '').contains(keyword)).toList();
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if (matchedProducts.isEmpty) return;
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// 最初の一致する商品を追加
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final product = matchedProducts.first;
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final existingItemIndex = _estimateItems.indexWhere((item) => item.productId == product.id);
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setState(() {
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if (existingItemIndex == -1 || _estimateItems[existingItemIndex].quantity < 50) {
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_estimateItems.add(_EstimateItem(
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productId: product.id ?? 0,
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productName: product.name ?? '',
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productCode: product.productCode ?? '',
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unitPrice: product.unitPrice ?? 0.0,
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quantity: 1,
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totalAmount: (product.unitPrice ?? 0.0),
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));
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} else if (existingItemIndex != -1) {
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_estimateItems[existingItemIndex].quantity += 1;
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_estimateItems[existingItemIndex].totalAmount =
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_estimateItems[existingItemIndex].unitPrice * _estimateItems[existingItemIndex].quantity;
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}
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calculateTotal();
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});
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}
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void removeItem(int index) {
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if (index >= 0 && index < _estimateItems.length) {
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_estimateItems.removeAt(index);
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calculateTotal();
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}
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}
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void increaseQuantity(int index) {
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if (index >= 0 && index < _estimateItems.length) {
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final item = _estimateItems[index];
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if (item.quantity < 50) { // 1 セルで最大 50 件
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item.quantity += 1;
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item.totalAmount = item.unitPrice * item.quantity;
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calculateTotal();
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}
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}
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}
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void decreaseQuantity(int index) {
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if (index >= 0 && index < _estimateItems.length && _estimateItems[index].quantity > 1) {
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_estimateItems[index].quantity -= 1;
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_estimateItems[index].totalAmount = _estimateItems[index].unitPrice * _estimateItems[index].quantity;
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calculateTotal();
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}
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}
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void calculateTotal() {
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final items = _estimateItems.map((item) => item.totalAmount).toList();
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if (mounted) setState(() => _totalAmount = items.fold(0.0, (sum, val) => sum + val));
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}
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Future<void> saveEstimate() async {
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if (_estimateItems.isEmpty || !_selectedCustomer!.customerCode.isNotEmpty) return;
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try {
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// Map にデータ構築
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final estimateData = <String, dynamic>{
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'customer_code': _selectedCustomer!.customerCode,
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'estimate_number': _estimateNumber,
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'expiry_date': _expiryDate != null ? DateFormat('yyyy-MM-dd').format(_expiryDate!) : null,
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'total_amount': _totalAmount.round(),
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'tax_rate': _selectedCustomer!.taxRate ?? 8,
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'product_items': _estimateItems.map((item) {
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return <String, dynamic>{
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'productId': item.productId,
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'productName': item.productName,
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'unitPrice': item.unitPrice.round(),
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'quantity': item.quantity,
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};
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}).toList(),
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};
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await DatabaseHelper.instance.insertEstimate(estimateData);
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if (mounted) ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('見積書保存完了'), duration: Duration(seconds: 2)),
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);
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} catch (e) {
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if (mounted) ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('保存エラー：$e'), backgroundColor: Colors.red),
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);
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('見積書'),
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actions: [
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IconButton(
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icon: const Icon(Icons.save),
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onPressed: _selectedCustomer != null ? saveEstimate : null,
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),
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],
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),
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body: _selectedCustomer == null || _estimateItems.isEmpty
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? Center(child: Text('得意先を選択し、商品を検索して見積書を作成'))
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: SingleChildScrollView(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// 見積書番号表示
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ListTile(
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contentPadding: EdgeInsets.zero,
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title: const Text('見積書番号'),
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subtitle: Text(_estimateNumber),
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),
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const Divider(height: 24),
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// 得意先情報表示
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Card(
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child: ListTile(
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contentPadding: EdgeInsets.zero,
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title: const Text('得意先'),
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subtitle: Text(_selectedCustomer!.name),
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trailing: IconButton(icon: const Icon(Icons.person), onPressed: () => _showCustomerSelector()),
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),
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),
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const SizedBox(height: 16),
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// 有効期限設定
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Card(
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child: ListTile(
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contentPadding: EdgeInsets.zero,
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title: Text(_expiryDate != null ? '見積有効期限' : '見積有効期限（未設定）'),
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subtitle: _expiryDate != null
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? Text(DateFormat('yyyy/MM/dd').format(_expiryDate!))
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: const Text('-'),
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trailing: IconButton(icon: const Icon(Icons.calendar_today), onPressed: () => _showDatePicker()),
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),
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),
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const SizedBox(height: 16),
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// 商品検索エリア
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Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: TextField(
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decoration: InputDecoration(
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labelText: '商品検索',
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hintText: '商品名または JAN コードを入力',
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prefixIcon: const Icon(Icons.search),
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suffixIcon: IconButton(icon: const Icon(Icons.clear), onPressed: () => searchProduct('')),
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),
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onChanged: searchProduct,
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),
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),
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// 見積項目一覧
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Card(
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child: _estimateItems.isEmpty
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? Padding(
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padding: const EdgeInsets.all(24),
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child: Center(child: Text('商品を登録して見積書を作成')),
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)
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: ListView.separated(
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shrinkWrap: true,
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physics: const NeverScrollableScrollPhysics(),
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itemCount: _estimateItems.length,
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itemBuilder: (context, index) {
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final item = _estimateItems[index];
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return ListTile(
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title: Text(item.productName),
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subtitle: Text('コード：${item.productCode} / ¥${item.totalAmount.toStringAsFixed(2)} × ${item.quantity}'),
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trailing: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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IconButton(icon: const Icon(Icons.remove_circle), onPressed: () => decreaseQuantity(index),),
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IconButton(icon: const Icon(Icons.add_circle), onPressed: () => increaseQuantity(index),),
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],
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),
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);
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},
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separatorBuilder: (_, __) => const Divider(),
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),
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),
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const SizedBox(height: 24),
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// 合計金額表示
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Card(
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color: Colors.blue.shade50,
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child: ListTile(
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contentPadding: EdgeInsets.zero,
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title: const Text('見積書合計'),
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subtitle: Text('¥${_totalAmount.toStringAsFixed(2)}', style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
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),
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),
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const SizedBox(height: 24),
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// 保存ボタン
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ElevatedButton.icon(
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onPressed: _selectedCustomer != null ? saveEstimate : null,
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icon: const Icon(Icons.save),
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label: const Text('見積書を保存'),
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style: ElevatedButton.styleFrom(padding: const EdgeInsets.all(16)),
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),
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const SizedBox(height: 12),
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// 詳細表示ボタン（簡易版）
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OutlinedButton.icon(
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onPressed: _estimateItems.isNotEmpty ? () => _showSummary() : null,
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icon: const Icon(Icons.info),
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label: const Text('見積内容を確認'),
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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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void _showCustomerSelector() {
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showDialog(
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context: context,
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builder: (context) => StatefulBuilder(
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builder: (context, setStateDialog) => AlertDialog(
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title: const Text('得意先を選択'),
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content: SizedBox(
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width: double.maxFinite,
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child: ListView.builder(
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shrinkWrap: true,
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itemCount: _customers.length,
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itemBuilder: (context, index) {
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final customer = _customers[index];
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return ListTile(
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title: Text(customer.name),
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subtitle: Text('${customer.customerCode} / TEL:${customer.phoneNumber}'),
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onTap: () {
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setState(() {
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_selectedCustomer = customer;
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if (_expiryDate != null) {
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final yearMonth = '${_expiryDate!.year}${_expiryDate!.month.toString().padLeft(2, '0')}';
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_estimateNumber = '$yearMonth-0001';
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}
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});
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Navigator.pop(context);
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},
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);
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},
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),
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),
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actions: [TextButton(onPressed: () => Navigator.pop(context), child: const Text('キャンセル'))],
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),
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),
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);
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}
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void _showDatePicker() {
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showDialog<bool>(
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context: context,
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builder: (context) => DatePickerDialog(initialDate: _expiryDate ?? DateTime.now().add(const Duration(days: 30))),
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);
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}
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void _showSummary() {
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if (_estimateItems.isEmpty) return;
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('見積書概要'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text('見積書番号：$_estimateNumber'),
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const SizedBox(height: 8),
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Text('得意先：${_selectedCustomer?.name ?? '未指定'}'),
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const SizedBox(height: 8),
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Text('合計金額：¥${_totalAmount.toStringAsFixed(2)}'),
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if (_expiryDate != null) Text('有効期限：${DateFormat('yyyy/MM/dd').format(_expiryDate!)}'),
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],
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),
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actions: [TextButton(onPressed: () => Navigator.pop(context), child: const Text('閉じる'))],
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),
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);
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}
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}
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class _EstimateItem {
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final int productId;
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final String productName;
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final String productCode;
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double unitPrice;
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int quantity;
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double totalAmount;
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_EstimateItem({
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required this.productId,
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required this.productName,
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required this.productCode,
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required this.unitPrice,
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required this.quantity,
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required this.totalAmount,
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});
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}
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/// デイティピッカーダイアログ（簡易）
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class DatePickerDialog extends StatefulWidget {
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final DateTime initialDate;
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const DatePickerDialog({super.key, required this.initialDate});
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@override
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State<DatePickerDialog> createState() => _DatePickerDialogState();
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}
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class _DatePickerDialogState extends State<DatePickerDialog> {
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DateTime _selectedDate = DateTime.now();
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void _selectDate(DateTime date) {
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setState(() => _selectedDate = date);
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Navigator.pop(context, true);
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}
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@override
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Widget build(BuildContext context) {
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return AlertDialog(
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title: const Text('見積有効期限を選択'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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ListTile(
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leading: const Icon(Icons.calendar_today),
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title: const Text('今日から 30 日後'),
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onTap: () => _selectDate(DateTime.now().add(const Duration(days: 30))),
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),
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ListTile(
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leading: const Icon(Icons.access_time),
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title: const Text('1 ヶ月後（約 30 日）'),
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onTap: () => _selectDate(DateTime.now().add(const Duration(days: 30))),
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),
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ListTile(
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leading: const Icon(Icons.info_outline),
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title: const Text('カスタム日付（簡易：未実装）'),
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subtitle: const Text('デフォルト：30 日後'),
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),
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],
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),
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actions: [
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TextButton(onPressed: () => Navigator.pop(context, false), child: const Text('キャンセル')),
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ElevatedButton(
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onPressed: () => _selectDate(DateTime.now().add(const Duration(days: 30))),
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child: const Text('標準（30 日後）'),
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),
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],
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);
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}
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} |