interceptors: migrate to otel and add logging interceptor

Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>

service/interceptors.go

@@ -1,6 +1,14 @@
 package service
 
 import (
+	"context"
+	"fmt"
+
+	"github.com/fullstorydev/grpchan/inprocgrpc"
+	grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
+	"google.golang.org/grpc"
+	insecure2 "google.golang.org/grpc/credentials/insecure"
+
 	"go.linka.cloud/grpc-toolkit/interceptors"
 	"go.linka.cloud/grpc-toolkit/interceptors/metadata"
 )
@@ -18,3 +26,47 @@ func md(opts *options) interceptors.Interceptors {
 	}
 	return nil
 }
+
+func (s *service) wrapCC() grpc.ClientConnInterface {
+	c, err := grpc.NewClient("internal", grpc.WithTransportCredentials(insecure2.NewCredentials()))
+	if err != nil {
+		panic(fmt.Sprintf("failed to create fake grpc client: %v", err))
+	}
+	w := &client{ch: s.inproc, c: c}
+	if len(s.opts.unaryClientInterceptors) != 0 {
+		w.ui = grpc_middleware.ChainUnaryClient(s.opts.unaryClientInterceptors...)
+	}
+	if len(s.opts.streamClientInterceptors) != 0 {
+		w.si = grpc_middleware.ChainStreamClient(s.opts.streamClientInterceptors...)
+	}
+	return w
+}
+
+type client struct {
+	ui grpc.UnaryClientInterceptor
+	si grpc.StreamClientInterceptor
+	ch *inprocgrpc.Channel
+	c  *grpc.ClientConn
+}
+
+func (c *client) Invoke(ctx context.Context, method string, args any, reply any, opts ...grpc.CallOption) error {
+	if c.ui != nil {
+		return c.ui(ctx, method, args, reply, c.c, c.invoke, opts...)
+	}
+	return c.ch.Invoke(ctx, method, args, reply, opts...)
+}
+
+func (c *client) NewStream(ctx context.Context, desc *grpc.StreamDesc, method string, opts ...grpc.CallOption) (grpc.ClientStream, error) {
+	if c.si != nil {
+		return c.si(ctx, desc, c.c, method, c.stream, opts...)
+	}
+	return c.ch.NewStream(ctx, desc, method, opts...)
+}
+
+func (c *client) invoke(ctx context.Context, method string, req, reply any, _ *grpc.ClientConn, opts ...grpc.CallOption) error {
+	return c.ch.Invoke(ctx, method, req, reply, opts...)
+}
+
+func (c *client) stream(ctx context.Context, desc *grpc.StreamDesc, _ *grpc.ClientConn, method string, opts ...grpc.CallOption) (grpc.ClientStream, error) {
+	return c.ch.NewStream(ctx, desc, method, opts...)
+}