frostfs-sdk-go/client/accounting.go

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package client
import (
"context"
"errors"
"fmt"
v2accounting "github.com/nspcc-dev/neofs-api-go/v2/accounting"
"github.com/nspcc-dev/neofs-api-go/v2/refs"
rpcapi "github.com/nspcc-dev/neofs-api-go/v2/rpc"
"github.com/nspcc-dev/neofs-api-go/v2/rpc/client"
"github.com/nspcc-dev/neofs-sdk-go/accounting"
"github.com/nspcc-dev/neofs-sdk-go/user"
)
// PrmBalanceGet groups parameters of BalanceGet operation.
type PrmBalanceGet struct {
prmCommonMeta
accountSet bool
account user.ID
}
// SetAccount sets identifier of the NeoFS account for which the balance is requested.
// Required parameter.
func (x *PrmBalanceGet) SetAccount(id user.ID) {
x.account = id
x.accountSet = true
}
// ResBalanceGet groups resulting values of BalanceGet operation.
type ResBalanceGet struct {
statusRes
amount *accounting.Decimal
}
func (x *ResBalanceGet) setAmount(v *accounting.Decimal) {
x.amount = v
}
// Amount returns current amount of funds on the NeoFS account as decimal number.
//
// Client doesn't retain value so modification is safe.
func (x ResBalanceGet) Amount() *accounting.Decimal {
return x.amount
}
// BalanceGet requests current balance of the NeoFS account.
//
// Exactly one return value is non-nil. By default, server status is returned in res structure.
// Any client's internal or transport errors are returned as `error`,
// If PrmInit.ResolveNeoFSFailures has been called, unsuccessful
// NeoFS status codes are returned as `error`, otherwise, are included
// in the returned result structure.
//
// Immediately panics if parameters are set incorrectly (see PrmBalanceGet docs).
// Context is required and must not be nil. It is used for network communication.
//
// Return statuses:
// - global (see Client docs).
func (c *Client) BalanceGet(ctx context.Context, prm PrmBalanceGet) (*ResBalanceGet, error) {
switch {
case ctx == nil:
panic(panicMsgMissingContext)
case !prm.accountSet:
panic("account not set")
}
// form request body
var accountV2 refs.OwnerID
prm.account.WriteToV2(&accountV2)
var body v2accounting.BalanceRequestBody
body.SetOwnerID(&accountV2)
// form request
var req v2accounting.BalanceRequest
req.SetBody(&body)
// init call context
var (
cc contextCall
res ResBalanceGet
)
c.initCallContext(&cc)
cc.meta = prm.prmCommonMeta
cc.req = &req
cc.statusRes = &res
cc.call = func() (responseV2, error) {
return rpcapi.Balance(&c.c, &req, client.WithContext(ctx))
}
cc.result = func(r responseV2) {
resp := r.(*v2accounting.BalanceResponse)
bal := resp.GetBody().GetBalance()
if bal == nil {
cc.err = errors.New("missing balance field")
return
}
var d accounting.Decimal
cc.err = d.ReadFromV2(*bal)
if cc.err != nil {
cc.err = fmt.Errorf("invalid balance: %w", cc.err)
return
}
res.setAmount(&d)
}
// process call
if !cc.processCall() {
return nil, cc.err
}
return &res, nil
}