/
checkpoint.go
80 lines (69 loc) · 1.94 KB
/
checkpoint.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 entities
import (
"encoding/json"
"fmt"
"time"
v2 "github.com/zeta-protocol/zeta/protos/data-node/api/v2"
eventspb "github.com/zeta-protocol/zeta/protos/zeta/events/v1"
)
type Checkpoint struct {
Hash string
BlockHash string
BlockHeight int64
TxHash TxHash
ZetaTime time.Time
SeqNum uint64
}
func (cp *Checkpoint) ToProto() *v2.Checkpoint {
pcp := v2.Checkpoint{
Hash: cp.Hash,
BlockHash: cp.BlockHash,
AtBlock: uint64(cp.BlockHeight),
}
return &pcp
}
func (cp Checkpoint) Cursor() *Cursor {
return NewCursor(CheckpointCursor{BlockHeight: cp.BlockHeight}.String())
}
func (cp Checkpoint) ToProtoEdge(_ ...any) (*v2.CheckpointEdge, error) {
return &v2.CheckpointEdge{
Node: cp.ToProto(),
Cursor: cp.Cursor().Encode(),
}, nil
}
func CheckpointFromProto(cpe *eventspb.CheckpointEvent, txHash TxHash) (Checkpoint, error) {
cp := Checkpoint{
Hash: cpe.Hash,
BlockHash: cpe.BlockHash,
BlockHeight: int64(cpe.BlockHeight),
TxHash: txHash,
}
return cp, nil
}
type CheckpointCursor struct {
BlockHeight int64 `json:"blockHeight"`
}
func (cp CheckpointCursor) String() string {
bs, err := json.Marshal(cp)
if err != nil {
panic(fmt.Errorf("couldn't marshal CheckpointCursor: %w", err))
}
return string(bs)
}
func (cp *CheckpointCursor) Parse(cursorString string) error {
if cursorString == "" {
return nil
}
return json.Unmarshal([]byte(cursorString), cp)
}