[#48] client: Refactor NetworkInfo()

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

client/netmap.go

@@ -120,6 +120,16 @@ type PrmNetworkInfo struct {
 	prmCommonMeta
 }
 
+func (x PrmNetworkInfo) buildRequest(c *Client) (*v2netmap.NetworkInfoRequest, error) {
+	meta := new(v2session.RequestMetaHeader)
+	writeXHeadersToMeta(x.xHeaders, meta)
+
+	var req v2netmap.NetworkInfoRequest
+	req.SetBody(new(v2netmap.NetworkInfoRequestBody))
+	c.prepareRequest(&req, meta)
+	return &req, nil
+}
+
 // ResNetworkInfo groups resulting values of NetworkInfo operation.
 type ResNetworkInfo struct {
 	statusRes
@@ -148,46 +158,35 @@ func (x ResNetworkInfo) Info() netmap.NetworkInfo {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) NetworkInfo(ctx context.Context, prm PrmNetworkInfo) (*ResNetworkInfo, error) {
-	// form request
-	var req v2netmap.NetworkInfoRequest
-
-	// init call context
-
-	var (
-		cc  contextCall
-		res ResNetworkInfo
-	)
-
-	c.initCallContext(&cc)
-	cc.meta = prm.prmCommonMeta
-	cc.req = &req
-	cc.statusRes = &res
-	cc.call = func() (responseV2, error) {
-		return rpcapi.NetworkInfo(&c.c, &req, client.WithContext(ctx))
-	}
-	cc.result = func(r responseV2) {
-		resp := r.(*v2netmap.NetworkInfoResponse)
-
-		const fieldNetInfo = "network info"
-
-		netInfoV2 := resp.GetBody().GetNetworkInfo()
-		if netInfoV2 == nil {
-			cc.err = newErrMissingResponseField(fieldNetInfo)
-			return
-		}
-
-		cc.err = res.info.ReadFromV2(*netInfoV2)
-		if cc.err != nil {
-			cc.err = newErrInvalidResponseField(fieldNetInfo, cc.err)
-			return
-		}
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
 	}
 
-	// process call
-	if !cc.processCall() {
-		return nil, cc.err
+	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+		return nil, fmt.Errorf("sign request: %w", err)
 	}
 
+	resp, err := rpcapi.NetworkInfo(&c.c, req, client.WithContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	var res ResNetworkInfo
+	res.st, err = c.processResponse(resp)
+	if err != nil || !apistatus.IsSuccessful(res.st) {
+		return &res, err
+	}
+
+	const fieldNetInfo = "network info"
+
+	netInfoV2 := resp.GetBody().GetNetworkInfo()
+	if netInfoV2 == nil {
+		return nil, newErrMissingResponseField(fieldNetInfo)
+	}
+	if err := res.info.ReadFromV2(*netInfoV2); err != nil {
+		return nil, newErrInvalidResponseField(fieldNetInfo, err)
+	}
 	return &res, nil
 }