frostfs-sdk-go/client/accounting.go
Leonard Lyubich 22dad0573d [#164] client: Refactor and document package functionality
Get rid of `Option` pattern. Define `Init`, `Dial` and `Close` methods
for the corresponding stages of use.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2022-03-10 15:02:10 +03:00

104 lines
2.6 KiB
Go

package client
import (
"context"
v2accounting "github.com/nspcc-dev/neofs-api-go/v2/accounting"
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/owner"
)
// PrmBalanceGet groups parameters of BalanceGet operation.
type PrmBalanceGet struct {
prmCommonMeta
ownerSet bool
ownerID owner.ID
}
// SetAccount sets identifier of the NeoFS account for which the balance is requested.
// Required parameter. Must be a valid ID according to NeoFS API protocol.
func (x *PrmBalanceGet) SetAccount(id owner.ID) {
x.ownerID = id
x.ownerSet = 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 WithNeoFSErrorParsing option has been provided, 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.ownerSet:
panic("account not set")
case !prm.ownerID.Valid():
panic("invalid account ID")
}
// form request body
var body v2accounting.BalanceRequestBody
body.SetOwnerID(prm.ownerID.ToV2())
// 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)
res.setAmount(accounting.NewDecimalFromV2(resp.GetBody().GetBalance()))
}
// process call
if !cc.processCall() {
return nil, cc.err
}
return &res, nil
}