split bill

lib/infrastructure/order/datasources/remote_data_provider.dart

@@ -236,4 +236,29 @@ class OrderRemoteDataProvider {
       return DC.error(OrderFailure.serverError(e));
     }
   }
+
+  Future<DC<OrderFailure, PaymentDto>> createSplitBill(
+    PaymentSplitBillRequestDto request,
+  ) async {
+    try {
+      final response = await _apiClient.post(
+        "${ApiPath.orders}/split-bill",
+        data: request.toRequest(),
+        headers: getAuthorizationHeader(),
+      );
+
+      if (response.data['success'] == false) {
+        return DC.error(OrderFailure.unexpectedError());
+      }
+
+      final payment = PaymentDto.fromJson(
+        response.data['data'] as Map<String, dynamic>,
+      );
+
+      return DC.data(payment);
+    } on ApiFailure catch (e, s) {
+      log('createSplitBillError', name: _logName, error: e, stackTrace: s);
+      return DC.error(OrderFailure.serverError(e));
+    }
+  }
 }

lib/infrastructure/order/dtos/payment_request_dto.dart

@@ -69,3 +69,102 @@ class PaymentItemRequestDto with _$PaymentItemRequestDto {
         amount: request.amount,
       );
 }
+
+@freezed
+class PaymentSplitBillRequestDto with _$PaymentSplitBillRequestDto {
+  const PaymentSplitBillRequestDto._();
+
+  const factory PaymentSplitBillRequestDto({
+    @JsonKey(name: "order_id") String? orderId,
+    @JsonKey(name: "payment_method_id") String? paymentMethodId,
+    @JsonKey(name: "customer_id") String? customerId,
+    @JsonKey(name: "customer_name") String? customerName,
+    @JsonKey(name: "type") String? type, // e.g., "AMOUNT" or "ITEM"
+    @JsonKey(name: "amount") int? amount,
+    @JsonKey(name: "items") List<PaymentItemSplitBillRequestDto>? items,
+  }) = _PaymentSplitBillRequestDto;
+
+  factory PaymentSplitBillRequestDto.fromJson(Map<String, dynamic> json) =>
+      _$PaymentSplitBillRequestDtoFromJson(json);
+
+  // Optional mapper ke domain
+  PaymentSplitBillRequest toDomain() => PaymentSplitBillRequest(
+    orderId: orderId ?? '',
+    paymentMethodId: paymentMethodId ?? '',
+    customerId: customerId ?? '',
+    type: type?.toSplitType() ?? SplitType.unknown,
+    amount: amount ?? 0,
+    items: items?.map((e) => e.toDomain()).toList() ?? [],
+    customerName: customerName ?? '',
+  );
+
+  factory PaymentSplitBillRequestDto.fromDomain(
+    PaymentSplitBillRequest request,
+  ) => PaymentSplitBillRequestDto(
+    orderId: request.orderId,
+    paymentMethodId: request.paymentMethodId,
+    customerId: request.customerId,
+    type: request.type.toStringType(),
+    amount: request.amount,
+    items: request.items
+        .map((e) => PaymentItemSplitBillRequestDto.fromDomain(e))
+        .toList(),
+  );
+
+  Map<String, dynamic> toRequest() {
+    Map<String, dynamic> data = {
+      'order_id': orderId,
+      'payment_method_id': paymentMethodId,
+      'type': type,
+    };
+
+    if (customerId != null && customerId != '') {
+      data['customer_id'] = customerId;
+    }
+
+    if (customerName != null && customerName != '') {
+      data['customer_name'] = customerName;
+    }
+
+    if (type == 'AMOUNT') {
+      data['amount'] = amount;
+    }
+
+    if (type == 'ITEM') {
+      data['items'] = items?.map((item) => item.toRequest()).toList();
+    }
+
+    return data;
+  }
+}
+
+@freezed
+class PaymentItemSplitBillRequestDto with _$PaymentItemSplitBillRequestDto {
+  const PaymentItemSplitBillRequestDto._();
+
+  const factory PaymentItemSplitBillRequestDto({
+    @JsonKey(name: "order_item_id") String? orderItemId,
+    @JsonKey(name: "quantity") int? quantity,
+  }) = _PaymentItemSplitBillRequestDto;
+
+  factory PaymentItemSplitBillRequestDto.fromJson(Map<String, dynamic> json) =>
+      _$PaymentItemSplitBillRequestDtoFromJson(json);
+
+  // Optional mapper ke domain
+  PaymentItemSplitBillRequest toDomain() => PaymentItemSplitBillRequest(
+    orderItemId: orderItemId ?? '',
+    quantity: quantity ?? 0,
+  );
+
+  factory PaymentItemSplitBillRequestDto.fromDomain(
+    PaymentItemSplitBillRequest request,
+  ) => PaymentItemSplitBillRequestDto(
+    orderItemId: request.orderItemId,
+    quantity: request.quantity,
+  );
+
+  Map<String, dynamic> toRequest() => {
+    'order_item_id': orderItemId,
+    'quantity': quantity,
+  };
+}

lib/infrastructure/order/order_dtos.dart

@@ -1,5 +1,7 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 
+import '../../common/extension/extension.dart';
+import '../../common/types/split_type.dart';
 import '../../domain/order/order.dart';
 
 part 'order_dtos.freezed.dart';

lib/infrastructure/order/order_dtos.freezed.dart

@@ -2851,6 +2851,559 @@ abstract class _PaymentItemRequestDto extends PaymentItemRequestDto {
   get copyWith => throw _privateConstructorUsedError;
 }
 
+PaymentSplitBillRequestDto _$PaymentSplitBillRequestDtoFromJson(
+  Map<String, dynamic> json,
+) {
+  return _PaymentSplitBillRequestDto.fromJson(json);
+}
+
+/// @nodoc
+mixin _$PaymentSplitBillRequestDto {
+  @JsonKey(name: "order_id")
+  String? get orderId => throw _privateConstructorUsedError;
+  @JsonKey(name: "payment_method_id")
+  String? get paymentMethodId => throw _privateConstructorUsedError;
+  @JsonKey(name: "customer_id")
+  String? get customerId => throw _privateConstructorUsedError;
+  @JsonKey(name: "customer_name")
+  String? get customerName => throw _privateConstructorUsedError;
+  @JsonKey(name: "type")
+  String? get type => throw _privateConstructorUsedError; // e.g., "AMOUNT" or "ITEM"
+  @JsonKey(name: "amount")
+  int? get amount => throw _privateConstructorUsedError;
+  @JsonKey(name: "items")
+  List<PaymentItemSplitBillRequestDto>? get items =>
+      throw _privateConstructorUsedError;
+
+  /// Serializes this PaymentSplitBillRequestDto to a JSON map.
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+
+  /// Create a copy of PaymentSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $PaymentSplitBillRequestDtoCopyWith<PaymentSplitBillRequestDto>
+  get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $PaymentSplitBillRequestDtoCopyWith<$Res> {
+  factory $PaymentSplitBillRequestDtoCopyWith(
+    PaymentSplitBillRequestDto value,
+    $Res Function(PaymentSplitBillRequestDto) then,
+  ) =
+      _$PaymentSplitBillRequestDtoCopyWithImpl<
+        $Res,
+        PaymentSplitBillRequestDto
+      >;
+  @useResult
+  $Res call({
+    @JsonKey(name: "order_id") String? orderId,
+    @JsonKey(name: "payment_method_id") String? paymentMethodId,
+    @JsonKey(name: "customer_id") String? customerId,
+    @JsonKey(name: "customer_name") String? customerName,
+    @JsonKey(name: "type") String? type,
+    @JsonKey(name: "amount") int? amount,
+    @JsonKey(name: "items") List<PaymentItemSplitBillRequestDto>? items,
+  });
+}
+
+/// @nodoc
+class _$PaymentSplitBillRequestDtoCopyWithImpl<
+  $Res,
+  $Val extends PaymentSplitBillRequestDto
+>
+    implements $PaymentSplitBillRequestDtoCopyWith<$Res> {
+  _$PaymentSplitBillRequestDtoCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of PaymentSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? orderId = freezed,
+    Object? paymentMethodId = freezed,
+    Object? customerId = freezed,
+    Object? customerName = freezed,
+    Object? type = freezed,
+    Object? amount = freezed,
+    Object? items = freezed,
+  }) {
+    return _then(
+      _value.copyWith(
+            orderId: freezed == orderId
+                ? _value.orderId
+                : orderId // ignore: cast_nullable_to_non_nullable
+                      as String?,
+            paymentMethodId: freezed == paymentMethodId
+                ? _value.paymentMethodId
+                : paymentMethodId // ignore: cast_nullable_to_non_nullable
+                      as String?,
+            customerId: freezed == customerId
+                ? _value.customerId
+                : customerId // ignore: cast_nullable_to_non_nullable
+                      as String?,
+            customerName: freezed == customerName
+                ? _value.customerName
+                : customerName // ignore: cast_nullable_to_non_nullable
+                      as String?,
+            type: freezed == type
+                ? _value.type
+                : type // ignore: cast_nullable_to_non_nullable
+                      as String?,
+            amount: freezed == amount
+                ? _value.amount
+                : amount // ignore: cast_nullable_to_non_nullable
+                      as int?,
+            items: freezed == items
+                ? _value.items
+                : items // ignore: cast_nullable_to_non_nullable
+                      as List<PaymentItemSplitBillRequestDto>?,
+          )
+          as $Val,
+    );
+  }
+}
+
+/// @nodoc
+abstract class _$$PaymentSplitBillRequestDtoImplCopyWith<$Res>
+    implements $PaymentSplitBillRequestDtoCopyWith<$Res> {
+  factory _$$PaymentSplitBillRequestDtoImplCopyWith(
+    _$PaymentSplitBillRequestDtoImpl value,
+    $Res Function(_$PaymentSplitBillRequestDtoImpl) then,
+  ) = __$$PaymentSplitBillRequestDtoImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({
+    @JsonKey(name: "order_id") String? orderId,
+    @JsonKey(name: "payment_method_id") String? paymentMethodId,
+    @JsonKey(name: "customer_id") String? customerId,
+    @JsonKey(name: "customer_name") String? customerName,
+    @JsonKey(name: "type") String? type,
+    @JsonKey(name: "amount") int? amount,
+    @JsonKey(name: "items") List<PaymentItemSplitBillRequestDto>? items,
+  });
+}
+
+/// @nodoc
+class __$$PaymentSplitBillRequestDtoImplCopyWithImpl<$Res>
+    extends
+        _$PaymentSplitBillRequestDtoCopyWithImpl<
+          $Res,
+          _$PaymentSplitBillRequestDtoImpl
+        >
+    implements _$$PaymentSplitBillRequestDtoImplCopyWith<$Res> {
+  __$$PaymentSplitBillRequestDtoImplCopyWithImpl(
+    _$PaymentSplitBillRequestDtoImpl _value,
+    $Res Function(_$PaymentSplitBillRequestDtoImpl) _then,
+  ) : super(_value, _then);
+
+  /// Create a copy of PaymentSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? orderId = freezed,
+    Object? paymentMethodId = freezed,
+    Object? customerId = freezed,
+    Object? customerName = freezed,
+    Object? type = freezed,
+    Object? amount = freezed,
+    Object? items = freezed,
+  }) {
+    return _then(
+      _$PaymentSplitBillRequestDtoImpl(
+        orderId: freezed == orderId
+            ? _value.orderId
+            : orderId // ignore: cast_nullable_to_non_nullable
+                  as String?,
+        paymentMethodId: freezed == paymentMethodId
+            ? _value.paymentMethodId
+            : paymentMethodId // ignore: cast_nullable_to_non_nullable
+                  as String?,
+        customerId: freezed == customerId
+            ? _value.customerId
+            : customerId // ignore: cast_nullable_to_non_nullable
+                  as String?,
+        customerName: freezed == customerName
+            ? _value.customerName
+            : customerName // ignore: cast_nullable_to_non_nullable
+                  as String?,
+        type: freezed == type
+            ? _value.type
+            : type // ignore: cast_nullable_to_non_nullable
+                  as String?,
+        amount: freezed == amount
+            ? _value.amount
+            : amount // ignore: cast_nullable_to_non_nullable
+                  as int?,
+        items: freezed == items
+            ? _value._items
+            : items // ignore: cast_nullable_to_non_nullable
+                  as List<PaymentItemSplitBillRequestDto>?,
+      ),
+    );
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$PaymentSplitBillRequestDtoImpl extends _PaymentSplitBillRequestDto {
+  const _$PaymentSplitBillRequestDtoImpl({
+    @JsonKey(name: "order_id") this.orderId,
+    @JsonKey(name: "payment_method_id") this.paymentMethodId,
+    @JsonKey(name: "customer_id") this.customerId,
+    @JsonKey(name: "customer_name") this.customerName,
+    @JsonKey(name: "type") this.type,
+    @JsonKey(name: "amount") this.amount,
+    @JsonKey(name: "items") final List<PaymentItemSplitBillRequestDto>? items,
+  }) : _items = items,
+       super._();
+
+  factory _$PaymentSplitBillRequestDtoImpl.fromJson(
+    Map<String, dynamic> json,
+  ) => _$$PaymentSplitBillRequestDtoImplFromJson(json);
+
+  @override
+  @JsonKey(name: "order_id")
+  final String? orderId;
+  @override
+  @JsonKey(name: "payment_method_id")
+  final String? paymentMethodId;
+  @override
+  @JsonKey(name: "customer_id")
+  final String? customerId;
+  @override
+  @JsonKey(name: "customer_name")
+  final String? customerName;
+  @override
+  @JsonKey(name: "type")
+  final String? type;
+  // e.g., "AMOUNT" or "ITEM"
+  @override
+  @JsonKey(name: "amount")
+  final int? amount;
+  final List<PaymentItemSplitBillRequestDto>? _items;
+  @override
+  @JsonKey(name: "items")
+  List<PaymentItemSplitBillRequestDto>? get items {
+    final value = _items;
+    if (value == null) return null;
+    if (_items is EqualUnmodifiableListView) return _items;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(value);
+  }
+
+  @override
+  String toString() {
+    return 'PaymentSplitBillRequestDto(orderId: $orderId, paymentMethodId: $paymentMethodId, customerId: $customerId, customerName: $customerName, type: $type, amount: $amount, items: $items)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$PaymentSplitBillRequestDtoImpl &&
+            (identical(other.orderId, orderId) || other.orderId == orderId) &&
+            (identical(other.paymentMethodId, paymentMethodId) ||
+                other.paymentMethodId == paymentMethodId) &&
+            (identical(other.customerId, customerId) ||
+                other.customerId == customerId) &&
+            (identical(other.customerName, customerName) ||
+                other.customerName == customerName) &&
+            (identical(other.type, type) || other.type == type) &&
+            (identical(other.amount, amount) || other.amount == amount) &&
+            const DeepCollectionEquality().equals(other._items, _items));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode => Object.hash(
+    runtimeType,
+    orderId,
+    paymentMethodId,
+    customerId,
+    customerName,
+    type,
+    amount,
+    const DeepCollectionEquality().hash(_items),
+  );
+
+  /// Create a copy of PaymentSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$PaymentSplitBillRequestDtoImplCopyWith<_$PaymentSplitBillRequestDtoImpl>
+  get copyWith =>
+      __$$PaymentSplitBillRequestDtoImplCopyWithImpl<
+        _$PaymentSplitBillRequestDtoImpl
+      >(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$PaymentSplitBillRequestDtoImplToJson(this);
+  }
+}
+
+abstract class _PaymentSplitBillRequestDto extends PaymentSplitBillRequestDto {
+  const factory _PaymentSplitBillRequestDto({
+    @JsonKey(name: "order_id") final String? orderId,
+    @JsonKey(name: "payment_method_id") final String? paymentMethodId,
+    @JsonKey(name: "customer_id") final String? customerId,
+    @JsonKey(name: "customer_name") final String? customerName,
+    @JsonKey(name: "type") final String? type,
+    @JsonKey(name: "amount") final int? amount,
+    @JsonKey(name: "items") final List<PaymentItemSplitBillRequestDto>? items,
+  }) = _$PaymentSplitBillRequestDtoImpl;
+  const _PaymentSplitBillRequestDto._() : super._();
+
+  factory _PaymentSplitBillRequestDto.fromJson(Map<String, dynamic> json) =
+      _$PaymentSplitBillRequestDtoImpl.fromJson;
+
+  @override
+  @JsonKey(name: "order_id")
+  String? get orderId;
+  @override
+  @JsonKey(name: "payment_method_id")
+  String? get paymentMethodId;
+  @override
+  @JsonKey(name: "customer_id")
+  String? get customerId;
+  @override
+  @JsonKey(name: "customer_name")
+  String? get customerName;
+  @override
+  @JsonKey(name: "type")
+  String? get type; // e.g., "AMOUNT" or "ITEM"
+  @override
+  @JsonKey(name: "amount")
+  int? get amount;
+  @override
+  @JsonKey(name: "items")
+  List<PaymentItemSplitBillRequestDto>? get items;
+
+  /// Create a copy of PaymentSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$PaymentSplitBillRequestDtoImplCopyWith<_$PaymentSplitBillRequestDtoImpl>
+  get copyWith => throw _privateConstructorUsedError;
+}
+
+PaymentItemSplitBillRequestDto _$PaymentItemSplitBillRequestDtoFromJson(
+  Map<String, dynamic> json,
+) {
+  return _PaymentItemSplitBillRequestDto.fromJson(json);
+}
+
+/// @nodoc
+mixin _$PaymentItemSplitBillRequestDto {
+  @JsonKey(name: "order_item_id")
+  String? get orderItemId => throw _privateConstructorUsedError;
+  @JsonKey(name: "quantity")
+  int? get quantity => throw _privateConstructorUsedError;
+
+  /// Serializes this PaymentItemSplitBillRequestDto to a JSON map.
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+
+  /// Create a copy of PaymentItemSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $PaymentItemSplitBillRequestDtoCopyWith<PaymentItemSplitBillRequestDto>
+  get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $PaymentItemSplitBillRequestDtoCopyWith<$Res> {
+  factory $PaymentItemSplitBillRequestDtoCopyWith(
+    PaymentItemSplitBillRequestDto value,
+    $Res Function(PaymentItemSplitBillRequestDto) then,
+  ) =
+      _$PaymentItemSplitBillRequestDtoCopyWithImpl<
+        $Res,
+        PaymentItemSplitBillRequestDto
+      >;
+  @useResult
+  $Res call({
+    @JsonKey(name: "order_item_id") String? orderItemId,
+    @JsonKey(name: "quantity") int? quantity,
+  });
+}
+
+/// @nodoc
+class _$PaymentItemSplitBillRequestDtoCopyWithImpl<
+  $Res,
+  $Val extends PaymentItemSplitBillRequestDto
+>
+    implements $PaymentItemSplitBillRequestDtoCopyWith<$Res> {
+  _$PaymentItemSplitBillRequestDtoCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of PaymentItemSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({Object? orderItemId = freezed, Object? quantity = freezed}) {
+    return _then(
+      _value.copyWith(
+            orderItemId: freezed == orderItemId
+                ? _value.orderItemId
+                : orderItemId // ignore: cast_nullable_to_non_nullable
+                      as String?,
+            quantity: freezed == quantity
+                ? _value.quantity
+                : quantity // ignore: cast_nullable_to_non_nullable
+                      as int?,
+          )
+          as $Val,
+    );
+  }
+}
+
+/// @nodoc
+abstract class _$$PaymentItemSplitBillRequestDtoImplCopyWith<$Res>
+    implements $PaymentItemSplitBillRequestDtoCopyWith<$Res> {
+  factory _$$PaymentItemSplitBillRequestDtoImplCopyWith(
+    _$PaymentItemSplitBillRequestDtoImpl value,
+    $Res Function(_$PaymentItemSplitBillRequestDtoImpl) then,
+  ) = __$$PaymentItemSplitBillRequestDtoImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({
+    @JsonKey(name: "order_item_id") String? orderItemId,
+    @JsonKey(name: "quantity") int? quantity,
+  });
+}
+
+/// @nodoc
+class __$$PaymentItemSplitBillRequestDtoImplCopyWithImpl<$Res>
+    extends
+        _$PaymentItemSplitBillRequestDtoCopyWithImpl<
+          $Res,
+          _$PaymentItemSplitBillRequestDtoImpl
+        >
+    implements _$$PaymentItemSplitBillRequestDtoImplCopyWith<$Res> {
+  __$$PaymentItemSplitBillRequestDtoImplCopyWithImpl(
+    _$PaymentItemSplitBillRequestDtoImpl _value,
+    $Res Function(_$PaymentItemSplitBillRequestDtoImpl) _then,
+  ) : super(_value, _then);
+
+  /// Create a copy of PaymentItemSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({Object? orderItemId = freezed, Object? quantity = freezed}) {
+    return _then(
+      _$PaymentItemSplitBillRequestDtoImpl(
+        orderItemId: freezed == orderItemId
+            ? _value.orderItemId
+            : orderItemId // ignore: cast_nullable_to_non_nullable
+                  as String?,
+        quantity: freezed == quantity
+            ? _value.quantity
+            : quantity // ignore: cast_nullable_to_non_nullable
+                  as int?,
+      ),
+    );
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$PaymentItemSplitBillRequestDtoImpl
+    extends _PaymentItemSplitBillRequestDto {
+  const _$PaymentItemSplitBillRequestDtoImpl({
+    @JsonKey(name: "order_item_id") this.orderItemId,
+    @JsonKey(name: "quantity") this.quantity,
+  }) : super._();
+
+  factory _$PaymentItemSplitBillRequestDtoImpl.fromJson(
+    Map<String, dynamic> json,
+  ) => _$$PaymentItemSplitBillRequestDtoImplFromJson(json);
+
+  @override
+  @JsonKey(name: "order_item_id")
+  final String? orderItemId;
+  @override
+  @JsonKey(name: "quantity")
+  final int? quantity;
+
+  @override
+  String toString() {
+    return 'PaymentItemSplitBillRequestDto(orderItemId: $orderItemId, quantity: $quantity)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$PaymentItemSplitBillRequestDtoImpl &&
+            (identical(other.orderItemId, orderItemId) ||
+                other.orderItemId == orderItemId) &&
+            (identical(other.quantity, quantity) ||
+                other.quantity == quantity));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode => Object.hash(runtimeType, orderItemId, quantity);
+
+  /// Create a copy of PaymentItemSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$PaymentItemSplitBillRequestDtoImplCopyWith<
+    _$PaymentItemSplitBillRequestDtoImpl
+  >
+  get copyWith =>
+      __$$PaymentItemSplitBillRequestDtoImplCopyWithImpl<
+        _$PaymentItemSplitBillRequestDtoImpl
+      >(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$PaymentItemSplitBillRequestDtoImplToJson(this);
+  }
+}
+
+abstract class _PaymentItemSplitBillRequestDto
+    extends PaymentItemSplitBillRequestDto {
+  const factory _PaymentItemSplitBillRequestDto({
+    @JsonKey(name: "order_item_id") final String? orderItemId,
+    @JsonKey(name: "quantity") final int? quantity,
+  }) = _$PaymentItemSplitBillRequestDtoImpl;
+  const _PaymentItemSplitBillRequestDto._() : super._();
+
+  factory _PaymentItemSplitBillRequestDto.fromJson(Map<String, dynamic> json) =
+      _$PaymentItemSplitBillRequestDtoImpl.fromJson;
+
+  @override
+  @JsonKey(name: "order_item_id")
+  String? get orderItemId;
+  @override
+  @JsonKey(name: "quantity")
+  int? get quantity;
+
+  /// Create a copy of PaymentItemSplitBillRequestDto
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$PaymentItemSplitBillRequestDtoImplCopyWith<
+    _$PaymentItemSplitBillRequestDtoImpl
+  >
+  get copyWith => throw _privateConstructorUsedError;
+}
+
 PaymentDto _$PaymentDtoFromJson(Map<String, dynamic> json) {
   return _PaymentOrderDto.fromJson(json);
 }

lib/infrastructure/order/order_dtos.g.dart

@@ -220,6 +220,49 @@ Map<String, dynamic> _$$PaymentItemRequestDtoImplToJson(
   'amount': instance.amount,
 };
 
+_$PaymentSplitBillRequestDtoImpl _$$PaymentSplitBillRequestDtoImplFromJson(
+  Map<String, dynamic> json,
+) => _$PaymentSplitBillRequestDtoImpl(
+  orderId: json['order_id'] as String?,
+  paymentMethodId: json['payment_method_id'] as String?,
+  customerId: json['customer_id'] as String?,
+  customerName: json['customer_name'] as String?,
+  type: json['type'] as String?,
+  amount: (json['amount'] as num?)?.toInt(),
+  items: (json['items'] as List<dynamic>?)
+      ?.map(
+        (e) =>
+            PaymentItemSplitBillRequestDto.fromJson(e as Map<String, dynamic>),
+      )
+      .toList(),
+);
+
+Map<String, dynamic> _$$PaymentSplitBillRequestDtoImplToJson(
+  _$PaymentSplitBillRequestDtoImpl instance,
+) => <String, dynamic>{
+  'order_id': instance.orderId,
+  'payment_method_id': instance.paymentMethodId,
+  'customer_id': instance.customerId,
+  'customer_name': instance.customerName,
+  'type': instance.type,
+  'amount': instance.amount,
+  'items': instance.items,
+};
+
+_$PaymentItemSplitBillRequestDtoImpl
+_$$PaymentItemSplitBillRequestDtoImplFromJson(Map<String, dynamic> json) =>
+    _$PaymentItemSplitBillRequestDtoImpl(
+      orderItemId: json['order_item_id'] as String?,
+      quantity: (json['quantity'] as num?)?.toInt(),
+    );
+
+Map<String, dynamic> _$$PaymentItemSplitBillRequestDtoImplToJson(
+  _$PaymentItemSplitBillRequestDtoImpl instance,
+) => <String, dynamic>{
+  'order_item_id': instance.orderItemId,
+  'quantity': instance.quantity,
+};
+
 _$PaymentOrderDtoImpl _$$PaymentOrderDtoImplFromJson(
   Map<String, dynamic> json,
 ) => _$PaymentOrderDtoImpl(

lib/infrastructure/order/repositories/order_repository.dart

@@ -177,4 +177,25 @@ class OrderRepository implements IOrderRepository {
       return left(const OrderFailure.unexpectedError());
     }
   }
+
+  @override
+  Future<Either<OrderFailure, Payment>> createSplitBill(
+    PaymentSplitBillRequest request,
+  ) async {
+    try {
+      final result = await _dataProvider.createSplitBill(
+        PaymentSplitBillRequestDto.fromDomain(request),
+      );
+
+      if (result.hasError) {
+        return left(result.error!);
+      }
+
+      final payment = result.data!.toDomain();
+      return right(payment);
+    } catch (e) {
+      log('createSplitBillError', name: _logName, error: e);
+      return left(const OrderFailure.unexpectedError());
+    }
+  }
 }