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delegations.go
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delegations.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.DATANODE file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package service
import (
"context"
"code.vegaprotocol.io/vega/datanode/entities"
"code.vegaprotocol.io/vega/datanode/utils"
"code.vegaprotocol.io/vega/logging"
)
type delegationStore interface {
Add(ctx context.Context, d entities.Delegation) error
GetAll(ctx context.Context) ([]entities.Delegation, error)
Get(ctx context.Context, partyID *string, nodeID *string, epoch *int64, p entities.Pagination) ([]entities.Delegation, entities.PageInfo, error)
}
type Delegation struct {
log *logging.Logger
store delegationStore
observer utils.Observer[entities.Delegation]
}
func NewDelegation(store delegationStore, log *logging.Logger) *Delegation {
return &Delegation{
store: store,
log: log,
observer: utils.NewObserver[entities.Delegation]("delegation", log, 10, 10),
}
}
func (d *Delegation) Add(ctx context.Context, delegation entities.Delegation) error {
err := d.store.Add(ctx, delegation)
if err != nil {
return err
}
d.observer.Notify([]entities.Delegation{delegation})
return nil
}
func (d *Delegation) GetAll(ctx context.Context) ([]entities.Delegation, error) {
return d.store.GetAll(ctx)
}
func (d *Delegation) Get(ctx context.Context, partyID *string, nodeID *string, epoch *int64, p entities.Pagination) ([]entities.Delegation, entities.PageInfo, error) {
return d.store.Get(ctx, partyID, nodeID, epoch, p)
}
func (d *Delegation) Observe(ctx context.Context, retries int, partyID, nodeID string) (rewardCh <-chan []entities.Delegation, ref uint64) {
ch, ref := d.observer.Observe(ctx,
retries,
func(dele entities.Delegation) bool {
return (len(nodeID) == 0 || nodeID == dele.NodeID.String()) &&
(len(partyID) == 0 || partyID == dele.PartyID.String())
})
return ch, ref
}
func (d *Delegation) GetDelegationSubscribersCount() int32 {
return d.observer.GetSubscribersCount()
}