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package bug
import (
"encoding/json"
"fmt"
"github.com/MichaelMure/git-bug/identity"
"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 git.Hash
Message string
Files []git.Hash
}
func (op *EditCommentOperation) base() *OpBase {
return &op.OpBase
}
func (op *EditCommentOperation) Hash() (git.Hash, error) {
return hashOperation(op)
}
func (op *EditCommentOperation) Apply(snapshot *Snapshot) {
// Todo: currently any message can be edited, even by a different author
// crypto signature are needed.
var target TimelineItem
var commentIndex int
for i, item := range snapshot.Timeline {
h := item.Hash()
if h == op.Target {
target = snapshot.Timeline[i]
break
}
// Track the index in the []Comment
switch item.(type) {
case *CreateTimelineItem, *CommentTimelineItem:
commentIndex++
}
}
if target == nil {
// Target not found, edit is a no-op
return
}
comment := Comment{
Message: op.Message,
Files: op.Files,
UnixTime: Timestamp(op.UnixTime),
}
switch target.(type) {
case *CreateTimelineItem:
item := target.(*CreateTimelineItem)
item.Append(comment)
case *AddCommentTimelineItem:
item := target.(*AddCommentTimelineItem)
item.Append(comment)
}
snapshot.Comments[commentIndex].Message = op.Message
snapshot.Comments[commentIndex].Files = op.Files
}
func (op *EditCommentOperation) GetFiles() []git.Hash {
return op.Files
}
func (op *EditCommentOperation) Validate() error {
if err := opBaseValidate(op, EditCommentOp); err != nil {
return err
}
if !op.Target.IsValid() {
return fmt.Errorf("target hash is invalid")
}
if !text.Safe(op.Message) {
return fmt.Errorf("message is not fully printable")
}
return nil
}
// Workaround to avoid the inner OpBase.MarshalJSON overriding the outer op
// MarshalJSON
func (op *EditCommentOperation) MarshalJSON() ([]byte, error) {
base, err := json.Marshal(op.OpBase)
if err != nil {
return nil, err
}
// revert back to a flat map to be able to add our own fields
var data map[string]interface{}
if err := json.Unmarshal(base, &data); err != nil {
return nil, err
}
data["target"] = op.Target
data["message"] = op.Message
data["files"] = op.Files
return json.Marshal(data)
}
// Workaround to avoid the inner OpBase.MarshalJSON overriding the outer op
// 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 git.Hash `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 git.Hash, 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 git.Hash, message string) (*EditCommentOperation, error) {
return EditCommentWithFiles(b, author, unixTime, target, message, nil)
}
func EditCommentWithFiles(b Interface, author identity.Interface, unixTime int64, target git.Hash, 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
}
|
