aboutsummaryrefslogtreecommitdiffstats
path: root/cache/filter.go
blob: 27e92cf33c24a588a4b5829e45afaf842d431f6d (plain) (blame)
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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
package cache

import (
	"strings"

	"github.com/MichaelMure/git-bug/bug"
)

// Filter is a predicate that match a subset of bugs
type Filter func(repoCache *RepoCache, excerpt *BugExcerpt) bool

// StatusFilter return a Filter that match a bug status
func StatusFilter(query string) (Filter, error) {
	status, err := bug.StatusFromString(query)
	if err != nil {
		return nil, err
	}

	return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
		return excerpt.Status == status
	}, nil
}

// AuthorFilter return a Filter that match a bug author
func AuthorFilter(query string) Filter {
	return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
		query = strings.ToLower(query)

		// Normal identity
		if excerpt.AuthorId != "" {
			author, ok := repoCache.identitiesExcerpts[excerpt.AuthorId]
			if !ok {
				panic("missing identity in the cache")
			}

			return author.Match(query)
		}

		// Legacy identity support
		return strings.Contains(strings.ToLower(excerpt.LegacyAuthor.Name), query) ||
			strings.Contains(strings.ToLower(excerpt.LegacyAuthor.Login), query)
	}
}

// LabelFilter return a Filter that match a label
func LabelFilter(label string) Filter {
	return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
		for _, l := range excerpt.Labels {
			if string(l) == label {
				return true
			}
		}
		return false
	}
}

// ActorFilter return a Filter that match a bug actor
func ActorFilter(query string) Filter {
	return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
		query = strings.ToLower(query)

		for _, id := range excerpt.Actors {
			identityExcerpt, ok := repoCache.identitiesExcerpts[id]
			if !ok {
				panic("missing identity in the cache")
			}

			if identityExcerpt.Match(query) {
				return true
			}
		}
		return false
	}
}

// ParticipantFilter return a Filter that match a bug participant
func ParticipantFilter(query string) Filter {
	return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
		query = strings.ToLower(query)

		for _, id := range excerpt.Participants {
			identityExcerpt, ok := repoCache.identitiesExcerpts[id]
			if !ok {
				panic("missing identity in the cache")
			}

			if identityExcerpt.Match(query) {
				return true
			}
		}
		return false
	}
}

// TitleFilter return a Filter that match if the title contains the given query
func TitleFilter(query string) Filter {
	return func(repo *RepoCache, excerpt *BugExcerpt) bool {
		return strings.Contains(
			strings.ToLower(excerpt.Title),
			strings.ToLower(query),
		)
	}
}

// NoLabelFilter return a Filter that match the absence of labels
func NoLabelFilter() Filter {
	return func(repoCache *RepoCache, excerpt *BugExcerpt) bool {
		return len(excerpt.Labels) == 0
	}
}

// Filters is a collection of Filter that implement a complex filter
type Filters struct {
	Status      []Filter
	Author      []Filter
	Actor       []Filter
	Participant []Filter
	Label       []Filter
	Title       []Filter
	NoFilters   []Filter
}

// Match check if a bug match the set of filters
func (f *Filters) Match(repoCache *RepoCache, excerpt *BugExcerpt) bool {
	if match := f.orMatch(f.Status, repoCache, excerpt); !match {
		return false
	}

	if match := f.orMatch(f.Author, repoCache, excerpt); !match {
		return false
	}

	if match := f.orMatch(f.Participant, repoCache, excerpt); !match {
		return false
	}

	if match := f.orMatch(f.Actor, repoCache, excerpt); !match {
		return false
	}

	if match := f.andMatch(f.Label, repoCache, excerpt); !match {
		return false
	}

	if match := f.andMatch(f.NoFilters, repoCache, excerpt); !match {
		return false
	}

	if match := f.andMatch(f.Title, repoCache, excerpt); !match {
		return false
	}

	return true
}

// Check if any of the filters provided match the bug
func (*Filters) orMatch(filters []Filter, repoCache *RepoCache, excerpt *BugExcerpt) bool {
	if len(filters) == 0 {
		return true
	}

	match := false
	for _, f := range filters {
		match = match || f(repoCache, excerpt)
	}

	return match
}

// Check if all of the filters provided match the bug
func (*Filters) andMatch(filters []Filter, repoCache *RepoCache, excerpt *BugExcerpt) bool {
	if len(filters) == 0 {
		return true
	}

	match := true
	for _, f := range filters {
		match = match && f(repoCache, excerpt)
	}

	return match
}