service backend

api/payments/orchestrator/client/client.go

@@ -0,0 +1,148 @@
+package client
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	orchestratorv1 "github.com/tech/sendico/pkg/proto/payments/orchestrator/v1"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
+)
+
+// Client exposes typed helpers around the payment orchestrator gRPC API.
+type Client interface {
+	QuotePayment(ctx context.Context, req *orchestratorv1.QuotePaymentRequest) (*orchestratorv1.QuotePaymentResponse, error)
+	InitiatePayment(ctx context.Context, req *orchestratorv1.InitiatePaymentRequest) (*orchestratorv1.InitiatePaymentResponse, error)
+	CancelPayment(ctx context.Context, req *orchestratorv1.CancelPaymentRequest) (*orchestratorv1.CancelPaymentResponse, error)
+	GetPayment(ctx context.Context, req *orchestratorv1.GetPaymentRequest) (*orchestratorv1.GetPaymentResponse, error)
+	ListPayments(ctx context.Context, req *orchestratorv1.ListPaymentsRequest) (*orchestratorv1.ListPaymentsResponse, error)
+	InitiateConversion(ctx context.Context, req *orchestratorv1.InitiateConversionRequest) (*orchestratorv1.InitiateConversionResponse, error)
+	ProcessTransferUpdate(ctx context.Context, req *orchestratorv1.ProcessTransferUpdateRequest) (*orchestratorv1.ProcessTransferUpdateResponse, error)
+	ProcessDepositObserved(ctx context.Context, req *orchestratorv1.ProcessDepositObservedRequest) (*orchestratorv1.ProcessDepositObservedResponse, error)
+	Close() error
+}
+
+type grpcOrchestratorClient interface {
+	QuotePayment(ctx context.Context, in *orchestratorv1.QuotePaymentRequest, opts ...grpc.CallOption) (*orchestratorv1.QuotePaymentResponse, error)
+	InitiatePayment(ctx context.Context, in *orchestratorv1.InitiatePaymentRequest, opts ...grpc.CallOption) (*orchestratorv1.InitiatePaymentResponse, error)
+	CancelPayment(ctx context.Context, in *orchestratorv1.CancelPaymentRequest, opts ...grpc.CallOption) (*orchestratorv1.CancelPaymentResponse, error)
+	GetPayment(ctx context.Context, in *orchestratorv1.GetPaymentRequest, opts ...grpc.CallOption) (*orchestratorv1.GetPaymentResponse, error)
+	ListPayments(ctx context.Context, in *orchestratorv1.ListPaymentsRequest, opts ...grpc.CallOption) (*orchestratorv1.ListPaymentsResponse, error)
+	InitiateConversion(ctx context.Context, in *orchestratorv1.InitiateConversionRequest, opts ...grpc.CallOption) (*orchestratorv1.InitiateConversionResponse, error)
+	ProcessTransferUpdate(ctx context.Context, in *orchestratorv1.ProcessTransferUpdateRequest, opts ...grpc.CallOption) (*orchestratorv1.ProcessTransferUpdateResponse, error)
+	ProcessDepositObserved(ctx context.Context, in *orchestratorv1.ProcessDepositObservedRequest, opts ...grpc.CallOption) (*orchestratorv1.ProcessDepositObservedResponse, error)
+}
+
+type orchestratorClient struct {
+	cfg    Config
+	conn   *grpc.ClientConn
+	client grpcOrchestratorClient
+}
+
+// New dials the payment orchestrator endpoint and returns a ready client.
+func New(ctx context.Context, cfg Config, opts ...grpc.DialOption) (Client, error) {
+	cfg.setDefaults()
+	if strings.TrimSpace(cfg.Address) == "" {
+		return nil, errors.New("payment-orchestrator: address is required")
+	}
+
+	dialCtx, cancel := context.WithTimeout(ctx, cfg.DialTimeout)
+	defer cancel()
+
+	dialOpts := make([]grpc.DialOption, 0, len(opts)+1)
+	dialOpts = append(dialOpts, opts...)
+
+	if cfg.Insecure {
+		dialOpts = append(dialOpts, grpc.WithTransportCredentials(insecure.NewCredentials()))
+	} else {
+		dialOpts = append(dialOpts, grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})))
+	}
+
+	conn, err := grpc.DialContext(dialCtx, cfg.Address, dialOpts...)
+	if err != nil {
+		return nil, fmt.Errorf("payment-orchestrator: dial %s: %w", cfg.Address, err)
+	}
+
+	return &orchestratorClient{
+		cfg:    cfg,
+		conn:   conn,
+		client: orchestratorv1.NewPaymentOrchestratorClient(conn),
+	}, nil
+}
+
+// NewWithClient injects a pre-built orchestrator client (useful for tests).
+func NewWithClient(cfg Config, oc grpcOrchestratorClient) Client {
+	cfg.setDefaults()
+	return &orchestratorClient{
+		cfg:    cfg,
+		client: oc,
+	}
+}
+
+func (c *orchestratorClient) Close() error {
+	if c.conn != nil {
+		return c.conn.Close()
+	}
+	return nil
+}
+
+func (c *orchestratorClient) QuotePayment(ctx context.Context, req *orchestratorv1.QuotePaymentRequest) (*orchestratorv1.QuotePaymentResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.QuotePayment(ctx, req)
+}
+
+func (c *orchestratorClient) InitiatePayment(ctx context.Context, req *orchestratorv1.InitiatePaymentRequest) (*orchestratorv1.InitiatePaymentResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.InitiatePayment(ctx, req)
+}
+
+func (c *orchestratorClient) CancelPayment(ctx context.Context, req *orchestratorv1.CancelPaymentRequest) (*orchestratorv1.CancelPaymentResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.CancelPayment(ctx, req)
+}
+
+func (c *orchestratorClient) GetPayment(ctx context.Context, req *orchestratorv1.GetPaymentRequest) (*orchestratorv1.GetPaymentResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.GetPayment(ctx, req)
+}
+
+func (c *orchestratorClient) ListPayments(ctx context.Context, req *orchestratorv1.ListPaymentsRequest) (*orchestratorv1.ListPaymentsResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.ListPayments(ctx, req)
+}
+
+func (c *orchestratorClient) InitiateConversion(ctx context.Context, req *orchestratorv1.InitiateConversionRequest) (*orchestratorv1.InitiateConversionResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.InitiateConversion(ctx, req)
+}
+
+func (c *orchestratorClient) ProcessTransferUpdate(ctx context.Context, req *orchestratorv1.ProcessTransferUpdateRequest) (*orchestratorv1.ProcessTransferUpdateResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.ProcessTransferUpdate(ctx, req)
+}
+
+func (c *orchestratorClient) ProcessDepositObserved(ctx context.Context, req *orchestratorv1.ProcessDepositObservedRequest) (*orchestratorv1.ProcessDepositObservedResponse, error) {
+	ctx, cancel := c.callContext(ctx)
+	defer cancel()
+	return c.client.ProcessDepositObserved(ctx, req)
+}
+
+func (c *orchestratorClient) callContext(ctx context.Context) (context.Context, context.CancelFunc) {
+	timeout := c.cfg.CallTimeout
+	if timeout <= 0 {
+		timeout = 3 * time.Second
+	}
+	return context.WithTimeout(ctx, timeout)
+}