git-bug/entities/bug/op_create.go

116 lines
2.9 KiB
Go

package bug
import (
"fmt"
"github.com/MichaelMure/git-bug/entities/identity"
"github.com/MichaelMure/git-bug/entity"
"github.com/MichaelMure/git-bug/entity/dag"
"github.com/MichaelMure/git-bug/repository"
"github.com/MichaelMure/git-bug/util/text"
"github.com/MichaelMure/git-bug/util/timestamp"
)
var _ Operation = &CreateOperation{}
var _ dag.OperationWithFiles = &CreateOperation{}
// CreateOperation define the initial creation of a bug
type CreateOperation struct {
dag.OpBase
Title string `json:"title"`
Message string `json:"message"`
Files []repository.Hash `json:"files"`
}
func (op *CreateOperation) Id() entity.Id {
return dag.IdOperation(op, &op.OpBase)
}
func (op *CreateOperation) Apply(snapshot *Snapshot) {
// sanity check: will fail when adding a second Create
if snapshot.id != "" && snapshot.id != entity.UnsetId && snapshot.id != op.Id() {
return
}
// the Id of the Bug/Snapshot is the Id of the first Operation: CreateOperation
opId := op.Id()
snapshot.id = opId
snapshot.addActor(op.Author())
snapshot.addParticipant(op.Author())
snapshot.Title = op.Title
comment := Comment{
combinedId: entity.CombineIds(snapshot.id, opId),
targetId: opId,
Message: op.Message,
Author: op.Author(),
unixTime: timestamp.Timestamp(op.UnixTime),
}
snapshot.Comments = []Comment{comment}
snapshot.Author = op.Author()
snapshot.CreateTime = op.Time()
snapshot.Timeline = []TimelineItem{
&CreateTimelineItem{
CommentTimelineItem: NewCommentTimelineItem(comment),
},
}
}
func (op *CreateOperation) GetFiles() []repository.Hash {
return op.Files
}
func (op *CreateOperation) Validate() error {
if err := op.OpBase.Validate(op, CreateOp); err != nil {
return err
}
if text.Empty(op.Title) {
return fmt.Errorf("title is empty")
}
if !text.SafeOneLine(op.Title) {
return fmt.Errorf("title has unsafe characters")
}
if !text.Safe(op.Message) {
return fmt.Errorf("message is not fully printable")
}
return nil
}
func NewCreateOp(author identity.Interface, unixTime int64, title, message string, files []repository.Hash) *CreateOperation {
return &CreateOperation{
OpBase: dag.NewOpBase(CreateOp, author, unixTime),
Title: title,
Message: message,
Files: files,
}
}
// CreateTimelineItem replace a Create operation in the Timeline and hold its edition history
type CreateTimelineItem struct {
CommentTimelineItem
}
// IsAuthored is a sign post method for gqlgen
func (c *CreateTimelineItem) IsAuthored() {}
// Create is a convenience function to create a bug
func Create(author identity.Interface, unixTime int64, title, message string, files []repository.Hash, metadata map[string]string) (*Bug, *CreateOperation, error) {
b := NewBug()
op := NewCreateOp(author, unixTime, title, message, files)
for key, val := range metadata {
op.SetMetadata(key, val)
}
if err := op.Validate(); err != nil {
return nil, op, err
}
b.Append(op)
return b, op, nil
}