add empty graphql task

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

cmd/servicechecker/main.go

@@ -208,6 +208,10 @@ func main() {
 				fn, args, err = newGRPCTask(ctx, l, mtr, check.Name, task)
 			case task.HTTP != nil:
 				fn, args, err = newHTTPTask(ctx, l, mtr, check.Name, task)
+			case task.GraphQL != nil:
+				fn, args, err = newGraphQLTask(ctx, l, mtr, check.Name, task)
+			default:
+				err = fmt.Errorf("unknown task type")
 			}
 			if err != nil {
 				l.Error(ctx, "failed to create task", err)
@@ -424,3 +428,96 @@ func newGRPCTask(ctx context.Context, l logger.Logger, m meter.Meter, check stri
 
 	return fn, nil, nil
 }
+
+func newGraphQLTask(ctx context.Context, l logger.Logger, m meter.Meter, check string, task *config.TaskConfig) (any, []any, error) {
+	/*
+		var err error
+
+		c, ok := clients["http"]
+		if !ok {
+			err = fmt.Errorf("unknown client http")
+			l.Error(ctx, "failed to get client", err)
+			return nil, nil, err
+		}
+
+		var req interface{}
+		var rsp interface{}
+		var treq client.Request
+		var opts []client.CallOption
+		var labels []string
+
+		if task.HTTP.OpenAPI != "" {
+
+			openapiBuf, err := os.ReadFile(task.HTTP.OpenAPI)
+			if err != nil {
+				l.Error(ctx, "failed to unmarshal openapi file", err)
+				return nil, nil, err
+			}
+
+			doc, err := openapi_v3.ParseDocument(openapiBuf)
+			if err != nil {
+				l.Error(ctx, "failed to unmarshal openapi file", err)
+				return nil, nil, err
+			}
+			_ = doc
+
+			errmap := make(map[string]interface{}, 1)
+			errmap["default"] = &codecpb.Frame{}
+			opts = []client.CallOption{
+				httpcli.ErrorMap(errmap),
+				httpcli.Method(task.HTTP.Method),
+				httpcli.Path(task.HTTP.Endpoint),
+
+				// client.WithContentType("application/json"),
+			}
+
+			req = &codecpb.Frame{Data: []byte(task.HTTP.Data)}
+			rsp = &codecpb.Frame{}
+
+			treq = c.NewRequest(task.Name, task.Name, req)
+
+			labels = []string{"check", check, "task", task.Name, "service", task.Name, "endpoint", task.Name}
+		}
+
+		fn := func() {
+			var cerr error
+
+			metadata := make(map[string]string, len(task.HTTP.Metadata))
+			var rquid string
+			for k, v := range task.HTTP.Metadata {
+				if k == "x-request-id" && v == "generate" {
+					uid, err := uuid.NewV7()
+					if err != nil {
+						l.Error(ctx, "failed to generate x-request-id", err)
+						uid = uuid.Nil
+					} else {
+						v = uid.String()
+					}
+				}
+				metadata[k] = v
+				rquid = v
+			}
+
+			l.Info(ctx, fmt.Sprintf("call %s.%s endpoint %s", treq.Service(), treq.Method(), treq.Endpoint()), "x-request-id", rquid)
+			m.Counter(semconv.ClientRequestInflight, labels...).Inc()
+			ts := time.Now()
+			cerr = httpconn.Call(ctx, rquid, l, c, task.HTTP.Addr, time.Duration(task.Timeout),
+				treq,
+				rsp,
+				append(opts, client.WithRequestMetadata(metadata))...,
+			)
+			te := time.Since(ts)
+			m.Counter(semconv.ClientRequestInflight, labels...).Dec()
+
+			m.Summary(semconv.ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
+			m.Histogram(semconv.ClientRequestDurationSeconds, labels...).Update(te.Seconds())
+
+			if cerr != nil {
+				m.Counter(semconv.ClientRequestTotal, append(labels, "status", "failure")...).Inc()
+			} else {
+				m.Counter(semconv.ClientRequestTotal, append(labels, "status", "success")...).Inc()
+			}
+		}
+	*/
+	return nil, nil, nil
+}