73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
package wrapper
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import (
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client/balance"
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)
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// Wrapper is a wrapper over balance contract
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// client which implements:
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// * tool for obtaining the amount of funds in the client's account;
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// * tool for obtaining decimal precision of currency transactions.
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//
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// Working wrapper must be created via constructor New.
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// Using the Wrapper that has been created with new(Wrapper)
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// expression (or just declaring a Wrapper variable) is unsafe
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// and can lead to panic.
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type Wrapper struct {
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client *balance.Client
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}
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// Option allows to set an optional
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// parameter of Wrapper.
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type Option func(*opts)
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type opts []client.StaticClientOption
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func defaultOpts() *opts {
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return new(opts)
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}
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// TryNotary returns option to enable
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// notary invocation tries.
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func TryNotary() Option {
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return func(o *opts) {
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*o = append(*o, client.TryNotary())
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}
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}
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// AsAlphabet returns option to sign main TX
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// of notary requests with client's private
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// key.
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//
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// Considered to be used by IR nodes only.
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func AsAlphabet() Option {
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return func(o *opts) {
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*o = append(*o, client.AsAlphabet())
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}
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}
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// NewFromMorph returns the wrapper instance from the raw morph client.
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func NewFromMorph(cli *client.Client, contract util.Uint160, fee fixedn.Fixed8, opts ...Option) (*Wrapper, error) {
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o := defaultOpts()
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for i := range opts {
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opts[i](o)
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}
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staticClient, err := client.NewStatic(cli, contract, fee, ([]client.StaticClientOption)(*o)...)
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if err != nil {
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return nil, fmt.Errorf("could not create static client of Balance contract: %w", err)
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}
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enhancedBalanceClient, err := balance.New(staticClient)
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if err != nil {
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return nil, fmt.Errorf("could not create Balance contract client: %w", err)
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}
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return &Wrapper{client: enhancedBalanceClient}, nil
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}
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