git-bug/bug/op_add_comment.go
2021-02-14 12:17:49 +01:00

134 lines
3.3 KiB
Go

package bug
import (
"encoding/json"
"fmt"
"github.com/MichaelMure/git-bug/entity"
"github.com/MichaelMure/git-bug/identity"
"github.com/MichaelMure/git-bug/repository"
"github.com/MichaelMure/git-bug/util/text"
"github.com/MichaelMure/git-bug/util/timestamp"
)
var _ Operation = &AddCommentOperation{}
// AddCommentOperation will add a new comment in the bug
type AddCommentOperation struct {
OpBase
Message string `json:"message"`
// TODO: change for a map[string]util.hash to store the filename ?
Files []repository.Hash `json:"files"`
}
// Sign-post method for gqlgen
func (op *AddCommentOperation) IsOperation() {}
func (op *AddCommentOperation) base() *OpBase {
return &op.OpBase
}
func (op *AddCommentOperation) Id() entity.Id {
return idOperation(op)
}
func (op *AddCommentOperation) Apply(snapshot *Snapshot) {
snapshot.addActor(op.Author)
snapshot.addParticipant(op.Author)
commentId := entity.CombineIds(snapshot.Id(), op.Id())
comment := Comment{
id: commentId,
Message: op.Message,
Author: op.Author,
Files: op.Files,
UnixTime: timestamp.Timestamp(op.UnixTime),
}
snapshot.Comments = append(snapshot.Comments, comment)
item := &AddCommentTimelineItem{
CommentTimelineItem: NewCommentTimelineItem(commentId, comment),
}
snapshot.Timeline = append(snapshot.Timeline, item)
}
func (op *AddCommentOperation) GetFiles() []repository.Hash {
return op.Files
}
func (op *AddCommentOperation) Validate() error {
if err := opBaseValidate(op, AddCommentOp); err != nil {
return err
}
if !text.Safe(op.Message) {
return fmt.Errorf("message is not fully printable")
}
return nil
}
// UnmarshalJSON is a two step JSON unmarshalling
// This workaround is necessary to avoid the inner OpBase.MarshalJSON
// overriding the outer op's MarshalJSON
func (op *AddCommentOperation) UnmarshalJSON(data []byte) error {
// Unmarshal OpBase and the op separately
base := OpBase{}
err := json.Unmarshal(data, &base)
if err != nil {
return err
}
aux := struct {
Message string `json:"message"`
Files []repository.Hash `json:"files"`
}{}
err = json.Unmarshal(data, &aux)
if err != nil {
return err
}
op.OpBase = base
op.Message = aux.Message
op.Files = aux.Files
return nil
}
// Sign post method for gqlgen
func (op *AddCommentOperation) IsAuthored() {}
func NewAddCommentOp(author identity.Interface, unixTime int64, message string, files []repository.Hash) *AddCommentOperation {
return &AddCommentOperation{
OpBase: newOpBase(AddCommentOp, author, unixTime),
Message: message,
Files: files,
}
}
// CreateTimelineItem replace a AddComment operation in the Timeline and hold its edition history
type AddCommentTimelineItem struct {
CommentTimelineItem
}
// Sign post method for gqlgen
func (a *AddCommentTimelineItem) IsAuthored() {}
// Convenience function to apply the operation
func AddComment(b Interface, author identity.Interface, unixTime int64, message string) (*AddCommentOperation, error) {
return AddCommentWithFiles(b, author, unixTime, message, nil)
}
func AddCommentWithFiles(b Interface, author identity.Interface, unixTime int64, message string, files []repository.Hash) (*AddCommentOperation, error) {
addCommentOp := NewAddCommentOp(author, unixTime, message, files)
if err := addCommentOp.Validate(); err != nil {
return nil, err
}
b.Append(addCommentOp)
return addCommentOp, nil
}