margin.at
Write on the margins of the internet. Powered by the AT Protocol.
margin.at
extension
web
atproto
comments
scanash.com
1package api
2
3import (
4 "encoding/json"
5 "time"
6
7 "margin.at/internal/db"
8)
9
10func (s *AnnotationService) checkDuplicateAnnotation(did, url, text string) (*db.Annotation, error) {
11 recentAnnos, err := s.db.GetAnnotationsByAuthor(did, 5, 0)
12 if err != nil {
13 return nil, err
14 }
15 for _, a := range recentAnnos {
16 if a.TargetSource == url &&
17 ((a.BodyValue == nil && text == "") || (a.BodyValue != nil && *a.BodyValue == text)) &&
18 time.Since(a.CreatedAt) < 10*time.Second {
19 return &a, nil
20 }
21 }
22 return nil, nil
23}
24
25func (s *AnnotationService) checkDuplicateHighlight(did, url string, selector json.RawMessage) (*db.Highlight, error) {
26 recentHighs, err := s.db.GetHighlightsByAuthor(did, 5, 0)
27 if err != nil {
28 return nil, err
29 }
30 for _, h := range recentHighs {
31 matchSelector := false
32 if h.SelectorJSON == nil && selector == nil {
33 matchSelector = true
34 } else if h.SelectorJSON != nil && selector != nil {
35 selectorBytes, _ := json.Marshal(selector)
36 if *h.SelectorJSON == string(selectorBytes) {
37 matchSelector = true
38 }
39 }
40
41 if h.TargetSource == url && matchSelector && time.Since(h.CreatedAt) < 10*time.Second {
42 return &h, nil
43 }
44 }
45 return nil, nil
46}
47
48func (s *AnnotationService) checkDuplicateBookmark(did, url string) (*db.Bookmark, error) {
49 urlHash := db.HashURL(url)
50 bookmarks, err := s.db.GetBookmarksByTargetHash(urlHash, 50, 0)
51 if err != nil {
52 return nil, err
53 }
54 for _, b := range bookmarks {
55 if b.AuthorDID == did && b.Source == url {
56 return &b, nil
57 }
58 }
59 return nil, nil
60}