1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
package bug
import (
"encoding/json"
"fmt"
"strings"
"github.com/MichaelMure/git-bug/entity"
"github.com/MichaelMure/git-bug/identity"
"github.com/MichaelMure/git-bug/util/timestamp"
"github.com/MichaelMure/git-bug/util/text"
)
var _ Operation = &SetTitleOperation{}
// SetTitleOperation will change the title of a bug
type SetTitleOperation struct {
OpBase
Title string `json:"title"`
Was string `json:"was"`
}
// Sign-post method for gqlgen
func (op *SetTitleOperation) IsOperation() {}
func (op *SetTitleOperation) base() *OpBase {
return &op.OpBase
}
func (op *SetTitleOperation) Id() entity.Id {
return idOperation(op)
}
func (op *SetTitleOperation) Apply(snapshot *Snapshot) {
snapshot.Title = op.Title
snapshot.addActor(op.Author)
item := &SetTitleTimelineItem{
id: op.Id(),
Author: op.Author,
UnixTime: timestamp.Timestamp(op.UnixTime),
Title: op.Title,
Was: op.Was,
}
snapshot.Timeline = append(snapshot.Timeline, item)
}
func (op *SetTitleOperation) Validate() error {
if err := opBaseValidate(op, SetTitleOp); err != nil {
return err
}
if text.Empty(op.Title) {
return fmt.Errorf("title is empty")
}
if strings.Contains(op.Title, "\n") {
return fmt.Errorf("title should be a single line")
}
if !text.Safe(op.Title) {
return fmt.Errorf("title should be fully printable")
}
if strings.Contains(op.Was, "\n") {
return fmt.Errorf("previous title should be a single line")
}
if !text.Safe(op.Was) {
return fmt.Errorf("previous title should be fully printable")
}
return nil
}
// UnmarshalJSON is a two step JSON unmarshaling
// This workaround is necessary to avoid the inner OpBase.MarshalJSON
// overriding the outer op's MarshalJSON
func (op *SetTitleOperation) UnmarshalJSON(data []byte) error {
// Unmarshal OpBase and the op separately
base := OpBase{}
err := json.Unmarshal(data, &base)
if err != nil {
return err
}
aux := struct {
Title string `json:"title"`
Was string `json:"was"`
}{}
err = json.Unmarshal(data, &aux)
if err != nil {
return err
}
op.OpBase = base
op.Title = aux.Title
op.Was = aux.Was
return nil
}
// Sign post method for gqlgen
func (op *SetTitleOperation) IsAuthored() {}
func NewSetTitleOp(author identity.Interface, unixTime int64, title string, was string) *SetTitleOperation {
return &SetTitleOperation{
OpBase: newOpBase(SetTitleOp, author, unixTime),
Title: title,
Was: was,
}
}
type SetTitleTimelineItem struct {
id entity.Id
Author identity.Interface
UnixTime timestamp.Timestamp
Title string
Was string
}
func (s SetTitleTimelineItem) Id() entity.Id {
return s.id
}
// Sign post method for gqlgen
func (s *SetTitleTimelineItem) IsAuthored() {}
// Convenience function to apply the operation
func SetTitle(b Interface, author identity.Interface, unixTime int64, title string) (*SetTitleOperation, error) {
it := NewOperationIterator(b)
var lastTitleOp Operation
for it.Next() {
op := it.Value()
if op.base().OperationType == SetTitleOp {
lastTitleOp = op
}
}
var was string
if lastTitleOp != nil {
was = lastTitleOp.(*SetTitleOperation).Title
} else {
was = b.FirstOp().(*CreateOperation).Title
}
setTitleOp := NewSetTitleOp(author, unixTime, title, was)
if err := setTitleOp.Validate(); err != nil {
return nil, err
}
b.Append(setTitleOp)
return setTitleOp, nil
}
|
