1package cache
2
3import (
4 "strings"
5
6 "github.com/MichaelMure/git-bug/bug"
7)
8
9// Filter is a predicate that match a subset of bugs
10type Filter func(repoCache *RepoCache, excerpt *BugExcerpt) bool
11
12// StatusFilter return a Filter that match a bug status
13func StatusFilter(query string) (Filter, error) {
14 status, err := bug.StatusFromString(query)
15 if err != nil {
16 return nil, err
17 }
18
19 return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
20 return excerpt.Status == status
21 }, nil
22}
23
24// AuthorFilter return a Filter that match a bug author
25func AuthorFilter(query string) Filter {
26 return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
27 query = strings.ToLower(query)
28
29 // Normal identity
30 if excerpt.AuthorId != "" {
31 author, ok := repoCache.identitiesExcerpts[excerpt.AuthorId]
32 if !ok {
33 panic("missing identity in the cache")
34 }
35
36 return strings.Contains(strings.ToLower(author.Name), query) ||
37 strings.Contains(strings.ToLower(author.Login), query)
38 }
39
40 // Legacy identity support
41 return strings.Contains(strings.ToLower(excerpt.LegacyAuthor.Name), query) ||
42 strings.Contains(strings.ToLower(excerpt.LegacyAuthor.Login), query)
43 }
44}
45
46// LabelFilter return a Filter that match a label
47func LabelFilter(label string) Filter {
48 return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
49 for _, l := range excerpt.Labels {
50 if string(l) == label {
51 return true
52 }
53 }
54 return false
55 }
56}
57
58// ActorFilter return a Filter that match a bug actor
59func ActorFilter(actor string) Filter {
60 return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
61 for _, identityExcerpt := range repoCache.identitiesExcerpts {
62 if strings.Contains(strings.ToLower(identityExcerpt.Name), actor) ||
63 actor == identityExcerpt.Id || actor == identityExcerpt.Login {
64 for _, actorId := range excerpt.Actors {
65 if identityExcerpt.Id == actorId {
66 return true
67 }
68 }
69 }
70 }
71 return false
72 }
73}
74
75// ParticipantFilter return a Filter that match a bug participant
76func ParticipantFilter(participant string) Filter {
77 return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
78 for _, identityExcerpt := range repoCache.identitiesExcerpts {
79 if strings.Contains(strings.ToLower(identityExcerpt.Name), participant) ||
80 participant == identityExcerpt.Id || participant == identityExcerpt.Login {
81 for _, participantId := range excerpt.Participants {
82 if identityExcerpt.Id == participantId {
83 return true
84 }
85 }
86 }
87 }
88 return false
89 }
90}
91
92// TitleFilter return a Filter that match if the title contains the given query
93func TitleFilter(query string) Filter {
94 return func(repo *RepoCache, excerpt *BugExcerpt) bool {
95 return strings.Contains(
96 strings.ToLower(excerpt.Title),
97 strings.ToLower(query),
98 )
99 }
100}
101
102// NoLabelFilter return a Filter that match the absence of labels
103func NoLabelFilter() Filter {
104 return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
105 return len(excerpt.Labels) == 0
106 }
107}
108
109// Filters is a collection of Filter that implement a complex filter
110type Filters struct {
111 Status []Filter
112 Author []Filter
113 Actor []Filter
114 Participant []Filter
115 Label []Filter
116 Title []Filter
117 NoFilters []Filter
118}
119
120// Match check if a bug match the set of filters
121func (f *Filters) Match(repoCache *RepoCache, excerpt *BugExcerpt) bool {
122 if match := f.orMatch(f.Status, repoCache, excerpt); !match {
123 return false
124 }
125
126 if match := f.orMatch(f.Author, repoCache, excerpt); !match {
127 return false
128 }
129
130 if match := f.orMatch(f.Participant, repoCache, excerpt); !match {
131 return false
132 }
133
134 if match := f.orMatch(f.Actor, repoCache, excerpt); !match {
135 return false
136 }
137
138 if match := f.andMatch(f.Label, repoCache, excerpt); !match {
139 return false
140 }
141
142 if match := f.andMatch(f.NoFilters, repoCache, excerpt); !match {
143 return false
144 }
145
146 if match := f.andMatch(f.Title, repoCache, excerpt); !match {
147 return false
148 }
149
150 return true
151}
152
153// Check if any of the filters provided match the bug
154func (*Filters) orMatch(filters []Filter, repoCache *RepoCache, excerpt *BugExcerpt) bool {
155 if len(filters) == 0 {
156 return true
157 }
158
159 match := false
160 for _, f := range filters {
161 match = match || f(repoCache, excerpt)
162 }
163
164 return match
165}
166
167// Check if all of the filters provided match the bug
168func (*Filters) andMatch(filters []Filter, repoCache *RepoCache, excerpt *BugExcerpt) bool {
169 if len(filters) == 0 {
170 return true
171 }
172
173 match := true
174 for _, f := range filters {
175 match = match && f(repoCache, excerpt)
176 }
177
178 return match
179}