package balance import ( "fmt" "github.com/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 Balance 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 Balance contract client } const ( transferXMethod = "transferX" mintMethod = "mint" burnMethod = "burn" lockMethod = "lock" balanceOfMethod = "balanceOf" decimalsMethod = "decimals" ) // NewFromMorph returns the wrapper instance from the raw morph client. func NewFromMorph(cli *client.Client, contract util.Uint160, fee fixedn.Fixed8, opts ...Option) (*Client, error) { o := defaultOpts() for i := range opts { opts[i](o) } staticClient, err := client.NewStatic(cli, contract, fee, ([]client.StaticClientOption)(*o)...) if err != nil { return nil, fmt.Errorf("could not create static client of Balance contract: %w", err) } return &Client{ client: staticClient, }, nil } // Option allows to set an optional // parameter of Wrapper. 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()) } }