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package bug
import (
"fmt"
"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 `json:"target"`
Message string `json:"message"`
Files []git.Hash `json:"files"`
}
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, err := item.Hash()
if err != nil {
// Should never happen, we control what goes into the timeline
panic(err)
}
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
}
switch target.(type) {
case *CreateTimelineItem:
item := target.(*CreateTimelineItem)
newComment := item.LastState()
newComment.Message = op.Message
item.History = append(item.History, newComment)
case *CommentTimelineItem:
item := target.(*CommentTimelineItem)
newComment := item.LastState()
newComment.Message = op.Message
item.History = append(item.History, newComment)
}
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.Empty(op.Message) {
return fmt.Errorf("message is empty")
}
if !text.Safe(op.Message) {
return fmt.Errorf("message is not fully printable")
}
return nil
}
func NewEditCommentOp(author Person, 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 Person, unixTime int64, target git.Hash, message string) error {
return EditCommentWithFiles(b, author, unixTime, target, message, nil)
}
func EditCommentWithFiles(b Interface, author Person, unixTime int64, target git.Hash, message string, files []git.Hash) error {
editCommentOp := NewEditCommentOp(author, unixTime, target, message, files)
if err := editCommentOp.Validate(); err != nil {
return err
}
b.Append(editCommentOp)
return nil
}
|
