2022-10-02 16:11:47 +02:00

74 lines
2.8 KiB
Go

package syncservice
import (
"fmt"
"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/spacesyncproto"
"github.com/anytypeio/go-anytype-infrastructure-experiments/pkg/acl/tree"
"github.com/anytypeio/go-anytype-infrastructure-experiments/pkg/acl/treechangeproto"
"github.com/anytypeio/go-anytype-infrastructure-experiments/util/slice"
)
type RequestFactory interface {
CreateHeadUpdate(t tree.ObjectTree, added []*treechangeproto.RawTreeChangeWithId) (msg *spacesyncproto.ObjectSyncMessage)
CreateNewTreeRequest(id string) (msg *spacesyncproto.ObjectSyncMessage)
CreateFullSyncRequest(t tree.ObjectTree, theirHeads, theirSnapshotPath []string, trackingId string) (req *spacesyncproto.ObjectSyncMessage, err error)
CreateFullSyncResponse(t tree.ObjectTree, theirHeads, theirSnapshotPath []string, trackingId string) (*spacesyncproto.ObjectSyncMessage, error)
}
func newRequestFactory() RequestFactory {
return &requestFactory{}
}
type requestFactory struct{}
func (r *requestFactory) CreateHeadUpdate(t tree.ObjectTree, added []*treechangeproto.RawTreeChangeWithId) (msg *spacesyncproto.ObjectSyncMessage) {
return spacesyncproto.WrapHeadUpdate(&spacesyncproto.ObjectHeadUpdate{
Heads: t.Heads(),
Changes: added,
SnapshotPath: t.SnapshotPath(),
}, t.Header(), t.ID(), "")
}
func (r *requestFactory) CreateNewTreeRequest(id string) (msg *spacesyncproto.ObjectSyncMessage) {
return spacesyncproto.WrapFullRequest(&spacesyncproto.ObjectFullSyncRequest{}, nil, id, "")
}
func (r *requestFactory) CreateFullSyncRequest(t tree.ObjectTree, theirHeads, theirSnapshotPath []string, trackingId string) (msg *spacesyncproto.ObjectSyncMessage, err error) {
req := &spacesyncproto.ObjectFullSyncRequest{}
if t == nil {
return nil, fmt.Errorf("tree should not be empty")
}
req.Heads = t.Heads()
req.SnapshotPath = t.SnapshotPath()
var changesAfterSnapshot []*treechangeproto.RawTreeChangeWithId
changesAfterSnapshot, err = t.ChangesAfterCommonSnapshot(theirSnapshotPath, theirHeads)
if err != nil {
return
}
req.Changes = changesAfterSnapshot
msg = spacesyncproto.WrapFullRequest(req, t.Header(), t.ID(), trackingId)
return
}
func (r *requestFactory) CreateFullSyncResponse(t tree.ObjectTree, theirHeads, theirSnapshotPath []string, trackingId string) (msg *spacesyncproto.ObjectSyncMessage, err error) {
resp := &spacesyncproto.ObjectFullSyncResponse{
Heads: t.Heads(),
SnapshotPath: t.SnapshotPath(),
}
if slice.UnsortedEquals(theirHeads, t.Heads()) {
msg = spacesyncproto.WrapFullResponse(resp, t.Header(), t.ID(), trackingId)
return
}
ourChanges, err := t.ChangesAfterCommonSnapshot(theirSnapshotPath, theirHeads)
if err != nil {
return
}
resp.Changes = ourChanges
msg = spacesyncproto.WrapFullResponse(resp, t.Header(), t.ID(), trackingId)
return
}