update database

lib/features/orders/domain/entities/payment_line.dart

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+/// Domain Entity: Payment Line
+///
+/// Represents a payment transaction for an invoice.
+library;
+
+/// Payment method enum
+enum PaymentMethod {
+  /// Cash payment
+  cash,
+
+  /// Bank transfer
+  bankTransfer,
+
+  /// Credit card
+  creditCard,
+
+  /// E-wallet (Momo, ZaloPay, etc.)
+  ewallet,
+
+  /// Check
+  check,
+
+  /// Other method
+  other;
+
+  /// Get display name for payment method
+  String get displayName {
+    switch (this) {
+      case PaymentMethod.cash:
+        return 'Cash';
+      case PaymentMethod.bankTransfer:
+        return 'Bank Transfer';
+      case PaymentMethod.creditCard:
+        return 'Credit Card';
+      case PaymentMethod.ewallet:
+        return 'E-Wallet';
+      case PaymentMethod.check:
+        return 'Check';
+      case PaymentMethod.other:
+        return 'Other';
+    }
+  }
+}
+
+/// Payment status enum
+enum PaymentStatus {
+  /// Payment pending
+  pending,
+
+  /// Payment is being processed
+  processing,
+
+  /// Payment completed successfully
+  completed,
+
+  /// Payment failed
+  failed,
+
+  /// Payment refunded
+  refunded,
+
+  /// Payment cancelled
+  cancelled;
+
+  /// Get display name for status
+  String get displayName {
+    switch (this) {
+      case PaymentStatus.pending:
+        return 'Pending';
+      case PaymentStatus.processing:
+        return 'Processing';
+      case PaymentStatus.completed:
+        return 'Completed';
+      case PaymentStatus.failed:
+        return 'Failed';
+      case PaymentStatus.refunded:
+        return 'Refunded';
+      case PaymentStatus.cancelled:
+        return 'Cancelled';
+    }
+  }
+}
+
+/// Payment Line Entity
+///
+/// Contains payment transaction information:
+/// - Payment details
+/// - Payment method
+/// - Bank information
+/// - Status tracking
+class PaymentLine {
+  /// Unique payment line identifier
+  final String paymentLineId;
+
+  /// Invoice ID this payment is for
+  final String invoiceId;
+
+  /// Payment number (human-readable)
+  final String paymentNumber;
+
+  /// Payment date
+  final DateTime paymentDate;
+
+  /// Payment amount
+  final double amount;
+
+  /// Payment method
+  final PaymentMethod paymentMethod;
+
+  /// Bank name (for bank transfer)
+  final String? bankName;
+
+  /// Bank account number (for bank transfer)
+  final String? bankAccount;
+
+  /// Reference number (transaction ID, check number, etc.)
+  final String? referenceNumber;
+
+  /// Payment notes
+  final String? notes;
+
+  /// Payment status
+  final PaymentStatus status;
+
+  /// Receipt URL
+  final String? receiptUrl;
+
+  /// ERPNext payment entry reference
+  final String? erpnextPaymentEntry;
+
+  /// Creation timestamp
+  final DateTime createdAt;
+
+  /// Processing timestamp
+  final DateTime? processedAt;
+
+  const PaymentLine({
+    required this.paymentLineId,
+    required this.invoiceId,
+    required this.paymentNumber,
+    required this.paymentDate,
+    required this.amount,
+    required this.paymentMethod,
+    this.bankName,
+    this.bankAccount,
+    this.referenceNumber,
+    this.notes,
+    required this.status,
+    this.receiptUrl,
+    this.erpnextPaymentEntry,
+    required this.createdAt,
+    this.processedAt,
+  });
+
+  /// Check if payment is completed
+  bool get isCompleted => status == PaymentStatus.completed;
+
+  /// Check if payment is pending
+  bool get isPending => status == PaymentStatus.pending;
+
+  /// Check if payment is being processed
+  bool get isProcessing => status == PaymentStatus.processing;
+
+  /// Check if payment failed
+  bool get isFailed => status == PaymentStatus.failed;
+
+  /// Check if payment has receipt
+  bool get hasReceipt => receiptUrl != null && receiptUrl!.isNotEmpty;
+
+  /// Copy with method for immutability
+  PaymentLine copyWith({
+    String? paymentLineId,
+    String? invoiceId,
+    String? paymentNumber,
+    DateTime? paymentDate,
+    double? amount,
+    PaymentMethod? paymentMethod,
+    String? bankName,
+    String? bankAccount,
+    String? referenceNumber,
+    String? notes,
+    PaymentStatus? status,
+    String? receiptUrl,
+    String? erpnextPaymentEntry,
+    DateTime? createdAt,
+    DateTime? processedAt,
+  }) {
+    return PaymentLine(
+      paymentLineId: paymentLineId ?? this.paymentLineId,
+      invoiceId: invoiceId ?? this.invoiceId,
+      paymentNumber: paymentNumber ?? this.paymentNumber,
+      paymentDate: paymentDate ?? this.paymentDate,
+      amount: amount ?? this.amount,
+      paymentMethod: paymentMethod ?? this.paymentMethod,
+      bankName: bankName ?? this.bankName,
+      bankAccount: bankAccount ?? this.bankAccount,
+      referenceNumber: referenceNumber ?? this.referenceNumber,
+      notes: notes ?? this.notes,
+      status: status ?? this.status,
+      receiptUrl: receiptUrl ?? this.receiptUrl,
+      erpnextPaymentEntry: erpnextPaymentEntry ?? this.erpnextPaymentEntry,
+      createdAt: createdAt ?? this.createdAt,
+      processedAt: processedAt ?? this.processedAt,
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+
+    return other is PaymentLine &&
+        other.paymentLineId == paymentLineId &&
+        other.invoiceId == invoiceId &&
+        other.paymentNumber == paymentNumber &&
+        other.amount == amount &&
+        other.paymentMethod == paymentMethod &&
+        other.status == status;
+  }
+
+  @override
+  int get hashCode {
+    return Object.hash(
+      paymentLineId,
+      invoiceId,
+      paymentNumber,
+      amount,
+      paymentMethod,
+      status,
+    );
+  }
+
+  @override
+  String toString() {
+    return 'PaymentLine(paymentLineId: $paymentLineId, paymentNumber: $paymentNumber, '
+        'amount: $amount, paymentMethod: $paymentMethod, status: $status)';
+  }
+}