Move pp client from pp repository to any-sync

paymentservice/paymentserviceclient/paymentserviceclient.go

@@ -0,0 +1,97 @@
+package paymentserviceclient
+
+import (
+	"context"
+
+	"github.com/anyproto/any-sync/app"
+	"github.com/anyproto/any-sync/net/pool"
+	"github.com/anyproto/any-sync/net/rpc/rpcerr"
+	"github.com/anyproto/any-sync/nodeconf"
+
+	pp "github.com/anyproto/any-sync/paymentservice/paymentserviceproto"
+)
+
+const CName = "any-pp.drpcclient"
+
+/*
+ * This client component can be used to access the Any Payment Processing node
+ * from other components.
+ */
+type AnyPpClientService interface {
+	GetSubscriptionStatus(ctx context.Context, in *pp.GetSubscriptionRequestSigned) (out *pp.GetSubscriptionResponse, err error)
+	BuySubscription(ctx context.Context, in *pp.BuySubscriptionRequestSigned) (out *pp.BuySubscriptionResponse, err error)
+
+	app.ComponentRunnable
+}
+
+type service struct {
+	pool     pool.Pool
+	nodeconf nodeconf.Service
+	close    chan struct{}
+}
+
+func (s *service) Init(a *app.App) (err error) {
+	s.pool = a.MustComponent(pool.CName).(pool.Pool)
+	s.nodeconf = a.MustComponent(nodeconf.CName).(nodeconf.Service)
+	s.close = make(chan struct{})
+	return nil
+}
+
+func (s *service) Name() (name string) {
+	return CName
+}
+
+func New() AnyPpClientService {
+	return new(service)
+}
+
+func (s *service) Run(_ context.Context) error {
+	return nil
+}
+
+func (s *service) Close(_ context.Context) error {
+	select {
+	case <-s.close:
+	default:
+		close(s.close)
+	}
+	return nil
+}
+
+func (s *service) doClient(ctx context.Context, fn func(cl pp.DRPCAnyPaymentProcessingClient) error) error {
+	// it will try to connect to the Payment Node
+	// please use "paymentProcessingNode" type of node in the config (in the network.nodes array)
+	peer, err := s.pool.Get(ctx, s.nodeconf.PaymentProcessingNodePeers()[0])
+
+	if err != nil {
+		return err
+	}
+
+	dc, err := peer.AcquireDrpcConn(ctx)
+	if err != nil {
+		return err
+	}
+	defer peer.ReleaseDrpcConn(dc)
+
+	return fn(pp.NewDRPCAnyPaymentProcessingClient(dc))
+}
+
+func (s *service) GetSubscriptionStatus(ctx context.Context, in *pp.GetSubscriptionRequestSigned) (out *pp.GetSubscriptionResponse, err error) {
+	err = s.doClient(ctx, func(cl pp.DRPCAnyPaymentProcessingClient) error {
+		if out, err = cl.GetSubscriptionStatus(ctx, in); err != nil {
+			return rpcerr.Unwrap(err)
+		}
+		return nil
+	})
+	return
+}
+
+func (s *service) BuySubscription(ctx context.Context, in *pp.BuySubscriptionRequestSigned) (out *pp.BuySubscriptionResponse, err error) {
+	err = s.doClient(ctx, func(cl pp.DRPCAnyPaymentProcessingClient) error {
+		if out, err = cl.BuySubscription(ctx, in); err != nil {
+			return rpcerr.Unwrap(err)
+		}
+		return nil
+	})
+	return
+}