60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package plaintextdocument
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import (
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"fmt"
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"github.com/anytypeio/go-anytype-infrastructure-experiments/pkg/acl/testutils/testchanges/testchangepb"
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"github.com/gogo/protobuf/proto"
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)
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type DocumentState struct {
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LastChangeId string
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Text string
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}
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func NewDocumentState(text string, id string) *DocumentState {
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return &DocumentState{
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LastChangeId: id,
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Text: text,
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}
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}
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func BuildDocumentStateFromChange(change []byte, id string) (*DocumentState, error) {
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var changesData testchangepb.PlainTextChangeData
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err := proto.Unmarshal(change, &changesData)
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if err != nil {
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return nil, err
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}
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if changesData.GetSnapshot() == nil {
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return nil, fmt.Errorf("could not create state from empty snapshot")
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}
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return NewDocumentState(changesData.GetSnapshot().GetText(), id), nil
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}
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func (p *DocumentState) ApplyChange(change []byte, id string) (*DocumentState, error) {
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var changesData testchangepb.PlainTextChangeData
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err := proto.Unmarshal(change, &changesData)
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if err != nil {
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return nil, err
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}
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for _, content := range changesData.GetContent() {
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err = p.applyChange(content)
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if err != nil {
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return nil, err
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}
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}
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p.LastChangeId = id
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return p, nil
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}
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func (p *DocumentState) applyChange(ch *testchangepb.PlainTextChangeContent) error {
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switch {
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case ch.GetTextAppend() != nil:
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text := ch.GetTextAppend().GetText()
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p.Text += "|" + text
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}
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return nil
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}
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