Fully separated payment quotation and orchestration flows

api/proto/payments/quotation/v1/quotation.proto

@@ -0,0 +1,38 @@
+syntax = "proto3";
+
+package payments.quotation.v1;
+
+option go_package = "github.com/tech/sendico/pkg/proto/payments/quotation/v1;quotationv1";
+
+import "payments/shared/v1/shared.proto";
+
+message QuotePaymentRequest {
+  payments.shared.v1.RequestMeta meta = 1;
+  string idempotency_key = 2;
+  payments.shared.v1.PaymentIntent intent = 3;
+  bool preview_only = 4;
+}
+
+message QuotePaymentResponse {
+  payments.shared.v1.PaymentQuote quote = 1;
+  string idempotency_key = 2;
+}
+
+message QuotePaymentsRequest {
+  payments.shared.v1.RequestMeta meta = 1;
+  string idempotency_key = 2;
+  repeated payments.shared.v1.PaymentIntent intents = 3;
+  bool preview_only = 4;
+}
+
+message QuotePaymentsResponse {
+  string quote_ref = 1;
+  payments.shared.v1.PaymentQuoteAggregate aggregate = 2;
+  repeated payments.shared.v1.PaymentQuote quotes = 3;
+  string idempotency_key = 4;
+}
+
+service QuotationService {
+  rpc QuotePayment(QuotePaymentRequest) returns (QuotePaymentResponse);
+  rpc QuotePayments(QuotePaymentsRequest) returns (QuotePaymentsResponse);
+}