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package dag
import (
"fmt"
"github.com/pkg/errors"
"github.com/MichaelMure/git-bug/entities/identity"
"github.com/MichaelMure/git-bug/entity"
"github.com/MichaelMure/git-bug/util/text"
)
var _ Operation = &SetMetadataOperation[Snapshot]{}
var _ OperationDoesntChangeSnapshot = &SetMetadataOperation[Snapshot]{}
type SetMetadataOperation[SnapT Snapshot] struct {
OpBase
Target entity.Id `json:"target"`
NewMetadata map[string]string `json:"new_metadata"`
}
func NewSetMetadataOp[SnapT Snapshot](opType OperationType, author identity.Interface, unixTime int64, target entity.Id, newMetadata map[string]string) *SetMetadataOperation[SnapT] {
return &SetMetadataOperation[SnapT]{
OpBase: NewOpBase(opType, author, unixTime),
Target: target,
NewMetadata: newMetadata,
}
}
func (op *SetMetadataOperation[SnapT]) Id() entity.Id {
return IdOperation(op, &op.OpBase)
}
func (op *SetMetadataOperation[SnapT]) Apply(snapshot SnapT) {
for _, target := range snapshot.AllOperations() {
if target.Id() == op.Target {
// Apply the metadata in an immutable way: if a metadata already
// exist, it's not possible to override it.
for key, value := range op.NewMetadata {
target.setExtraMetadataImmutable(key, value)
}
return
}
}
}
func (op *SetMetadataOperation[SnapT]) Validate() error {
if err := op.OpBase.Validate(op, op.OperationType); err != nil {
return err
}
if err := op.Target.Validate(); err != nil {
return errors.Wrap(err, "target invalid")
}
for key, val := range op.NewMetadata {
if !text.SafeOneLine(key) {
return fmt.Errorf("metadata key is unsafe")
}
if !text.Safe(val) {
return fmt.Errorf("metadata value is not fully printable")
}
}
return nil
}
func (op *SetMetadataOperation[SnapT]) DoesntChangeSnapshot() {}
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