1package board
 2
 3import (
 4	"fmt"
 5
 6	"github.com/git-bug/git-bug/entities/identity"
 7	"github.com/git-bug/git-bug/entity"
 8	"github.com/git-bug/git-bug/entity/dag"
 9	"github.com/git-bug/git-bug/util/text"
10	"github.com/git-bug/git-bug/util/timestamp"
11)
12
13var _ Operation = &AddItemDraftOperation{}
14
15type AddItemDraftOperation struct {
16	dag.OpBase
17	ColumnId entity.Id `json:"column"`
18	Title    string    `json:"title"`
19}
20
21func (op *AddItemDraftOperation) Id() entity.Id {
22	return dag.IdOperation(op, &op.OpBase)
23}
24
25func (op *AddItemDraftOperation) Validate() error {
26	if err := op.OpBase.Validate(op, AddItemDraftOp); err != nil {
27		return err
28	}
29
30	if err := op.ColumnId.Validate(); err != nil {
31		return err
32	}
33
34	if text.Empty(op.Title) {
35		return fmt.Errorf("title is empty")
36	}
37	if !text.SafeOneLine(op.Title) {
38		return fmt.Errorf("title has unsafe characters")
39	}
40
41	return nil
42}
43
44func (op *AddItemDraftOperation) Apply(snapshot *Snapshot) {
45	// Recreate the combined Id to match on
46	combinedId := entity.CombineIds(snapshot.Id(), op.ColumnId)
47
48	// search the column
49	for _, column := range snapshot.Columns {
50		if column.CombinedId == combinedId {
51			column.Items = append(column.Items, &Draft{
52				combinedId: entity.CombineIds(snapshot.id, op.Id()),
53				author:     op.Author(),
54				title:      op.Title,
55				unixTime:   timestamp.Timestamp(op.UnixTime),
56			})
57
58			snapshot.addActor(op.Author())
59			return
60		}
61	}
62}
63
64func NewAddItemDraftOp(author identity.Interface, unixTime int64, columnId entity.Id, title string) *AddItemDraftOperation {
65	return &AddItemDraftOperation{
66		OpBase:   dag.NewOpBase(AddItemDraftOp, author, unixTime),
67		ColumnId: columnId,
68		Title:    title,
69	}
70}
71
72// AddItemDraft is a convenience function to add a draft item to a Board
73func AddItemDraft(b ReadWrite, author identity.Interface, unixTime int64, columnId entity.Id, title string, metadata map[string]string) (entity.CombinedId, *AddItemDraftOperation, error) {
74	op := NewAddItemDraftOp(author, unixTime, columnId, title)
75	for key, val := range metadata {
76		op.SetMetadata(key, val)
77	}
78	if err := op.Validate(); err != nil {
79		return entity.UnsetCombinedId, nil, err
80	}
81	b.Append(op)
82	return entity.CombineIds(b.Id(), op.Id()), op, nil
83}