[#265] pkg/client: Implement SendLocalTrust method

Define `Reputation` section interface. Embed `Reputation` interface to
`Client` one.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/client/client.go

@@ -13,6 +13,7 @@ type Client interface {
 	Netmap
 	Object
 	Session
+	Reputation
 
 	// Raw must return underlying raw protobuf client.
 	Raw() *client.Client

pkg/client/reputation.go

@@ -0,0 +1,82 @@
+package client
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/pkg/reputation"
+	"github.com/nspcc-dev/neofs-api-go/rpc/client"
+	v2reputation "github.com/nspcc-dev/neofs-api-go/v2/reputation"
+	rpcapi "github.com/nspcc-dev/neofs-api-go/v2/rpc"
+	v2signature "github.com/nspcc-dev/neofs-api-go/v2/signature"
+	"github.com/pkg/errors"
+)
+
+// Reputation contains methods for working with Reputation system values.
+type Reputation interface {
+	// SendLocalTrust sends local trust values of local peer.
+	SendLocalTrust(context.Context, SendLocalTrustPrm, ...CallOption) (*SendLocalTrustRes, error)
+}
+
+// SendLocalTrustPrm groups parameters of SendLocalTrust operation.
+type SendLocalTrustPrm struct {
+	epoch uint64
+
+	trusts []*reputation.Trust
+}
+
+// Epoch returns epoch in which the trust was assessed.
+func (x SendLocalTrustPrm) Epoch() uint64 {
+	return x.epoch
+}
+
+// SetEpoch sets epoch in which the trust was assessed.
+func (x *SendLocalTrustPrm) SetEpoch(epoch uint64) {
+	x.epoch = epoch
+}
+
+// Trusts returns list of local trust values.
+func (x SendLocalTrustPrm) Trusts() []*reputation.Trust {
+	return x.trusts
+}
+
+// SetTrusts sets list of local trust values.
+func (x *SendLocalTrustPrm) SetTrusts(trusts []*reputation.Trust) {
+	x.trusts = trusts
+}
+
+// SendLocalTrustPrm groups results of SendLocalTrust operation.
+type SendLocalTrustRes struct{}
+
+func (c *clientImpl) SendLocalTrust(ctx context.Context, prm SendLocalTrustPrm, opts ...CallOption) (*SendLocalTrustRes, error) {
+	// apply all available options
+	callOptions := c.defaultCallOptions()
+
+	for i := range opts {
+		opts[i](callOptions)
+	}
+
+	reqBody := new(v2reputation.SendLocalTrustRequestBody)
+	reqBody.SetEpoch(prm.Epoch())
+	reqBody.SetTrusts(reputation.TrustsToV2(prm.Trusts()))
+
+	req := new(v2reputation.SendLocalTrustRequest)
+	req.SetBody(reqBody)
+	req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions))
+
+	err := v2signature.SignServiceMessage(callOptions.key, req)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := rpcapi.SendLocalTrust(c.Raw(), req, client.WithContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	err = v2signature.VerifyServiceMessage(resp)
+	if err != nil {
+		return nil, errors.Wrap(err, "can't verify response message")
+	}
+
+	return new(SendLocalTrustRes), nil
+}