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package bug
import (
"encoding/json"
"fmt"
"github.com/pkg/errors"
"github.com/MichaelMure/git-bug/entity"
"github.com/MichaelMure/git-bug/identity"
"github.com/MichaelMure/git-bug/util/timestamp"
"github.com/MichaelMure/git-bug/util/git"
"github.com/MichaelMure/git-bug/util/text"
)
var _ Operation = &EditCommentOperation{}
// EditCommentOperation will change a comment in the bug
type EditCommentOperation struct {
OpBase
Target entity.Id `json:"target"`
Message string `json:"message"`
Files []git.Hash `json:"files"`
}
func (op *EditCommentOperation) base() *OpBase {
return &op.OpBase
}
func (op *EditCommentOperation) Id() entity.Id {
return idOperation(op)
}
func (op *EditCommentOperation) Apply(snapshot *Snapshot) {
// Todo: currently any message can be edited, even by a different author
// crypto signature are needed.
snapshot.addActor(op.Author)
var target TimelineItem
for i, item := range snapshot.Timeline {
if item.Id() == op.Target {
target = snapshot.Timeline[i]
break
}
}
if target == nil {
// Target not found, edit is a no-op
return
}
comment := Comment{
id: op.Target,
Message: op.Message,
Files: op.Files,
UnixTime: timestamp.Timestamp(op.UnixTime),
}
switch target.(type) {
case *CreateTimelineItem:
item := target.(*CreateTimelineItem)
item.Append(comment)
case *AddCommentTimelineItem:
item := target.(*AddCommentTimelineItem)
item.Append(comment)
}
// Updating the corresponding comment
for i := range snapshot.Comments {
if snapshot.Comments[i].Id() == op.Target {
snapshot.Comments[i].Message = op.Message
snapshot.Comments[i].Files = op.Files
break
}
}
}
func (op *EditCommentOperation) GetFiles() []git.Hash {
return op.Files
}
func (op *EditCommentOperation) Validate() error {
if err := opBaseValidate(op, EditCommentOp); err != nil {
return err
}
if err := op.Target.Validate(); err != nil {
return errors.Wrap(err, "target hash is invalid")
}
if !text.Safe(op.Message) {
return fmt.Errorf("message is not fully printable")
}
return nil
}
// UnmarshalJSON is a two step JSON unmarshaling
// This workaround is necessary to avoid the inner OpBase.MarshalJSON
// overriding the outer op's MarshalJSON
func (op *EditCommentOperation) UnmarshalJSON(data []byte) error {
// Unmarshal OpBase and the op separately
base := OpBase{}
err := json.Unmarshal(data, &base)
if err != nil {
return err
}
aux := struct {
Target entity.Id `json:"target"`
Message string `json:"message"`
Files []git.Hash `json:"files"`
}{}
err = json.Unmarshal(data, &aux)
if err != nil {
return err
}
op.OpBase = base
op.Target = aux.Target
op.Message = aux.Message
op.Files = aux.Files
return nil
}
// Sign post method for gqlgen
func (op *EditCommentOperation) IsAuthored() {}
func NewEditCommentOp(author identity.Interface, unixTime int64, target entity.Id, message string, files []git.Hash) *EditCommentOperation {
return &EditCommentOperation{
OpBase: newOpBase(EditCommentOp, author, unixTime),
Target: target,
Message: message,
Files: files,
}
}
// Convenience function to apply the operation
func EditComment(b Interface, author identity.Interface, unixTime int64, target entity.Id, message string) (*EditCommentOperation, error) {
return EditCommentWithFiles(b, author, unixTime, target, message, nil)
}
// Convenience function to edit the body of a bug (the first comment)
func EditBody(b Interface, author identity.Interface, unixTime int64, message string) (*EditCommentOperation, error) {
createOp := b.FirstOp().(*CreateOperation)
return EditComment(b, author, unixTime, createOp.Id(), message)
}
func EditCommentWithFiles(b Interface, author identity.Interface, unixTime int64, target entity.Id, message string, files []git.Hash) (*EditCommentOperation, error) {
editCommentOp := NewEditCommentOp(author, unixTime, target, message, files)
if err := editCommentOp.Validate(); err != nil {
return nil, err
}
b.Append(editCommentOp)
return editCommentOp, nil
}
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