64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package tree
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import (
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"errors"
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"github.com/anytypeio/go-anytype-infrastructure-experiments/pkg/acl/treechangeproto"
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)
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var (
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ErrIncorrectSignature = errors.New("change has incorrect signature")
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ErrIncorrectCID = errors.New("change has incorrect CID")
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)
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// Change is an abstract type for all types of changes
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type Change struct {
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Next []*Change
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PreviousIds []string
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AclHeadId string
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Id string
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SnapshotId string
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IsSnapshot bool
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Timestamp int64
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ReadKeyHash uint64
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Identity string
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Data []byte
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Model interface{}
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// iterator helpers
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visited bool
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branchesFinished bool
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Signature []byte
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}
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func NewChange(id string, ch *treechangeproto.TreeChange, signature []byte) *Change {
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return &Change{
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Next: nil,
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PreviousIds: ch.TreeHeadIds,
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AclHeadId: ch.AclHeadId,
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Timestamp: ch.Timestamp,
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ReadKeyHash: ch.CurrentReadKeyHash,
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Id: id,
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Data: ch.ChangesData,
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SnapshotId: ch.SnapshotBaseId,
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IsSnapshot: ch.IsSnapshot,
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Identity: string(ch.Identity),
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Signature: signature,
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}
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}
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func NewChangeFromRoot(id string, ch *treechangeproto.RootChange, signature []byte) *Change {
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return &Change{
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Next: nil,
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AclHeadId: ch.AclHeadId,
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Id: id,
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IsSnapshot: true,
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Identity: string(ch.Identity),
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Signature: signature,
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}
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}
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func (ch *Change) CID() string {
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return ch.Id
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}
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