135 lines
No EOL
4 KiB
Dart
135 lines
No EOL
4 KiB
Dart
// Version: 1.5 - Estimate モデル定義（見積書）
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import '../services/database_helper.dart';
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/// 見積項目クラス
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class EstimateItem {
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int productId;
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String productName;
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double unitPrice;
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int quantity;
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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.unitPrice,
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this.quantity = 1,
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});
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/// 小計金額（税込）を取得
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double get subtotal => unitPrice * quantity;
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Map<String, dynamic> toMap() {
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return {
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'productId': productId,
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'productName': productName,
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'unitPrice': unitPrice,
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'quantity': quantity,
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'subtotal': subtotal,
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};
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}
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factory EstimateItem.fromMap(Map<dynamic, dynamic> map) {
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return EstimateItem(
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productId: map['productId'] as int,
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productName: map['productName'] as String,
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unitPrice: (map['unitPrice'] as num).toDouble(),
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quantity: map['quantity'] as int? ?? 1,
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);
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}
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static List<EstimateItem> fromMaps(List<dynamic> maps) {
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return maps.map((e) => EstimateItem.fromMap(e as Map)).toList();
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}
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}
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/// 見積書モデル
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class Estimate {
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int? id;
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String customerCode; // データベースでは product_code として保存（顧客コード）
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String estimateNumber;
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DateTime? expiryDate;
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double totalAmount;
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double taxRate;
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DateTime createdAt;
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DateTime updatedAt;
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List<EstimateItem> items = [];
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Estimate({
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this.id,
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required this.customerCode,
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required this.estimateNumber,
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this.expiryDate,
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this.totalAmount = 0,
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this.taxRate = 8.0, // デフォルト：8%
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DateTime? createdAt,
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DateTime? updatedAt,
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List<EstimateItem>? items,
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}) : createdAt = createdAt ?? DateTime.now(),
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updatedAt = updatedAt ?? DateTime.now(),
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items = items ?? [];
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/// マップから Estimate オブジェクトへ変換
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factory Estimate.fromMap(Map<String, dynamic> map) {
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return Estimate(
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id: map['id'] as int?,
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customerCode: map['customer_code'] as String, // 'product_code' を 'customer_code' として扱う
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estimateNumber: map['estimate_number'] as String,
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expiryDate: map['expiry_date'] != null ? DateTime.parse(map['expiry_date']) : null,
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totalAmount: (map['total_amount'] as num).toDouble(),
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taxRate: (map['tax_rate'] as num?)?.toDouble() ?? 8.0, // 税率（％）：デフォルト 8%
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createdAt: DateTime.parse(map['created_at']),
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updatedAt: DateTime.parse(map['updated_at']),
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);
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}
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/// Map に変換
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Map<String, dynamic> toMap() {
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return {
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'id': id,
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'customer_code': customerCode,
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'estimate_number': estimateNumber,
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'expiry_date': expiryDate?.toIso8601String(),
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'total_amount': totalAmount,
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'tax_rate': taxRate,
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'created_at': createdAt.toIso8601String(),
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'updated_at': updatedAt.toIso8601String(),
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};
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}
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/// カピービルダ
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Estimate copyWith({
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int? id,
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String? customerCode,
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String? estimateNumber,
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DateTime? expiryDate,
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double? totalAmount,
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int? taxRate,
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DateTime? createdAt,
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DateTime? updatedAt,
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List<EstimateItem>? items,
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}) {
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return Estimate(
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id: id ?? this.id,
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customerCode: customerCode ?? this.customerCode,
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estimateNumber: estimateNumber ?? this.estimateNumber,
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expiryDate: expiryDate ?? this.expiryDate,
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totalAmount: totalAmount ?? this.totalAmount,
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taxRate: (taxRate as num?)?.toDouble() ?? this.taxRate, // 型エラー修正
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createdAt: createdAt ?? this.createdAt,
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updatedAt: updatedAt ?? this.updatedAt,
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items: items ?? this.items,
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);
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}
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/// 合計金額を再計算（items から集計）
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void recalculate() {
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totalAmount = items.fold(0, (sum, item) => sum + item.subtotal);
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}
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/// 見積書番号を生成（YYYYMM-NNNN 形式）
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static String 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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return '$yearMonth-${DateTime.now().millisecondsSinceEpoch.toString().substring(6, 10)}';
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}
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} |