Build exchange workspace and shared transaction services (#28)

2026-09-12 12:01:36 +02:00
1 parent 52b7135eda
commit c496da8a55
@@ -0,0 +1,89 @@
+import '../models/wallet.dart';
+
+class AccountDTO {
+  AccountDTO(this.id, this.currency, this.precision, this.available);
+  final String id, currency;
+  final int precision;
+  int available;
+}
+
+class RequestDTO {
+  const RequestDTO(
+    this.kind,
+    this.source,
+    this.destination,
+    this.amount,
+    this.recipient,
+  );
+  final String kind, source, recipient;
+  final String? destination;
+  final int amount;
+}
+
+class QuoteDTO {
+  const QuoteDTO(
+    this.id,
+    this.request,
+    this.fee,
+    this.debit,
+    this.credit,
+    this.expires,
+    this.numerator,
+    this.denominator,
+  );
+  final String id;
+  final RequestDTO request;
+  final int fee, debit, credit, numerator, denominator;
+  final DateTime expires;
+}
+
+class OperationDTO {
+  OperationDTO(
+    this.id,
+    this.quote,
+    this.created,
+    this.ready, {
+    this.status = 'pending',
+    this.fail = false,
+  });
+  final String id;
+  final QuoteDTO quote;
+  final DateTime created, ready;
+  String status;
+  final bool fail;
+}
+
+abstract final class WalletMapper {
+  static CurrencyAccount account(AccountDTO d) => CurrencyAccount(
+    id: d.id,
+    currency: d.currency,
+    precision: d.precision,
+    available: d.available,
+  );
+  static RequestDTO request(TransferRequest r) =>
+      RequestDTO(r.kind.name, r.source, r.destination, r.amount, r.recipient);
+  static TransferRequest fromRequest(RequestDTO d) => TransferRequest(
+    kind: TransferKind.values.byName(d.kind),
+    source: d.source,
+    destination: d.destination,
+    amount: d.amount,
+    recipient: d.recipient,
+  );
+  static Quote quote(QuoteDTO d) => Quote(
+    id: d.id,
+    request: fromRequest(d.request),
+    fee: d.fee,
+    debit: d.debit,
+    credit: d.credit,
+    expiresAt: d.expires,
+    rateNumerator: d.numerator,
+    rateDenominator: d.denominator,
+  );
+  static WalletOperation operation(OperationDTO d) => WalletOperation(
+    id: d.id,
+    quote: quote(d.quote),
+    status: OperationStatus.values.byName(d.status),
+    createdAt: d.created,
+  );
+  static AccountProfile profile(String locale) => AccountProfile(locale);
+}