Add saved payout destination UX and service contracts (#54)

2026-10-16 12:01:33 +02:00
1 parent a5689876ff
commit 24af794112
@@ -0,0 +1,116 @@
+import 'models.dart';
+
+/// Local DTO boundary: transport fields never escape services into providers/UI.
+class DestinationDTO {
+  const DestinationDTO(this.value);
+  final Map<String, Object?> value;
+}
+
+abstract final class DestinationMapper {
+  static DestinationDTO details(DestinationDetails value) =>
+      DestinationDTO(switch (value) {
+        CryptoDestination d => {
+          'type': 'crypto',
+          'assetId': d.assetId,
+          'networkId': d.networkId,
+          'address': d.address,
+          'memo': d.memo,
+          'assetLabel': d.assetLabel,
+          'networkLabel': d.networkLabel,
+        },
+        CardDestination d => {
+          'type': 'card',
+          'capture': d.capture,
+          'identity': d.identity,
+          'brand': d.brand,
+          'last4': d.last4,
+          'expiryMonth': d.expiryMonth,
+          'expiryYear': d.expiryYear,
+        },
+        RussianBankDestination d => {
+          'type': 'russianBank',
+          'firstName': d.firstName,
+          'lastName': d.lastName,
+          'patronymic': d.patronymic,
+          'account': d.account,
+          'bank': bank(d.bank),
+        },
+      });
+  static Map<String, Object?> bank(Bank b) => {
+    'bik': b.bik,
+    'name': b.name,
+    'city': b.city,
+    'correspondent': b.correspondent,
+    'revision': b.revision,
+    'supported': b.supported,
+  };
+  static Bank fromBank(Map<String, dynamic> v) => Bank(
+    bik: v['bik'] as String,
+    name: v['name'] as String,
+    city: v['city'] as String,
+    correspondent: v['correspondent'] as String,
+    revision: v['revision'] as String,
+    supported: v['supported'] as bool,
+  );
+  static DestinationDetails fromDTO(DestinationDTO dto) {
+    final d = dto.value;
+    return switch (d['type']) {
+      'crypto' => CryptoDestination(
+        assetId: d['assetId'] as String,
+        networkId: d['networkId'] as String,
+        address: d['address'] as String,
+        memo: d['memo'] as String,
+        assetLabel: d['assetLabel'] as String,
+        networkLabel: d['networkLabel'] as String,
+      ),
+      'card' => CardDestination(
+        capture: d['capture'] as String,
+        identity: d['identity'] as String,
+        brand: d['brand'] as String,
+        last4: d['last4'] as String,
+        expiryMonth: d['expiryMonth'] as int,
+        expiryYear: d['expiryYear'] as int,
+      ),
+      'russianBank' => RussianBankDestination(
+        firstName: d['firstName'] as String,
+        lastName: d['lastName'] as String,
+        patronymic: d['patronymic'] as String,
+        account: d['account'] as String,
+        bank: fromBank(Map<String, dynamic>.from(d['bank'] as Map)),
+      ),
+      _ => throw const DestinationException(DestinationIssue.unsupported),
+    };
+  }
+
+  static DestinationDetails clone(DestinationDetails d) => fromDTO(details(d));
+}
+
+sealed class DestinationInputDTO {
+  const DestinationInputDTO();
+}
+
+class SavedInputDTO extends DestinationInputDTO {
+  const SavedInputDTO(this.id, this.executionRevision);
+  final String id;
+  final int executionRevision;
+}
+
+class OneTimeInputDTO extends DestinationInputDTO {
+  const OneTimeInputDTO(this.details);
+  final DestinationDTO details;
+}
+
+abstract final class DestinationInputMapper {
+  static DestinationInputDTO toDTO(DestinationInput input) => switch (input) {
+    SavedReference r => SavedInputDTO(r.id, r.executionRevision),
+    OneTimeDestination d => OneTimeInputDTO(
+      DestinationMapper.details(d.details),
+    ),
+  };
+  static DestinationInput fromDTO(DestinationInputDTO dto) => switch (dto) {
+    SavedInputDTO d => SavedReference(d.id, d.executionRevision),
+    OneTimeInputDTO d => OneTimeDestination(
+      DestinationMapper.fromDTO(d.details),
+    ),
+  };
+}