frostfs-node/pkg/morph/client/frostfs/client.go

77 lines
1.8 KiB
Go

package frostfscontract
import (
"fmt"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
"github.com/nspcc-dev/neo-go/pkg/util"
)
// Client is a wrapper over StaticClient
// which makes calls with the names and arguments
// of the FrostFS contract.
//
// Working client must be created via constructor New.
// Using the Client that has been created with new(Client)
// expression (or just declaring a Client variable) is unsafe
// and can lead to panic.
type Client struct {
client *client.StaticClient // static FrostFS contract client
}
const (
alphabetUpdateMethod = "alphabetUpdate"
chequeMethod = "cheque"
)
// NewFromMorph wraps client to work with FrostFS contract.
func NewFromMorph(cli *client.Client, contract util.Uint160, fee fixedn.Fixed8, opts ...Option) (*Client, error) {
o := defaultOpts()
for i := range opts {
opts[i](o)
}
sc, err := client.NewStatic(cli, contract, fee, ([]client.StaticClientOption)(*o)...)
if err != nil {
return nil, fmt.Errorf("could not create client of FrostFS contract: %w", err)
}
return &Client{client: sc}, nil
}
// ContractAddress returns the address of the associated contract.
func (x *Client) ContractAddress() util.Uint160 {
return x.client.ContractAddress()
}
// Option allows to set an optional
// parameter of ClientWrapper.
type Option func(*opts)
type opts []client.StaticClientOption
func defaultOpts() *opts {
return new(opts)
}
// TryNotary returns option to enable
// notary invocation tries.
func TryNotary() Option {
return func(o *opts) {
*o = append(*o, client.TryNotary())
}
}
// AsAlphabet returns option to sign main TX
// of notary requests with client's private
// key.
//
// Considered to be used by IR nodes only.
func AsAlphabet() Option {
return func(o *opts) {
*o = append(*o, client.AsAlphabet())
}
}