nel.pet
1package state
2
3import (
4 "log"
5 "net/http"
6 "time"
7
8 comatproto "github.com/bluesky-social/indigo/api/atproto"
9 lexutil "github.com/bluesky-social/indigo/lex/util"
10 "tangled.org/core/api/tangled"
11 "tangled.org/core/appview/db"
12 "tangled.org/core/appview/models"
13 "tangled.org/core/appview/pages"
14 "tangled.org/core/tid"
15)
16
17func (s *State) Follow(w http.ResponseWriter, r *http.Request) {
18 currentUser := s.oauth.GetUser(r)
19
20 subject := r.URL.Query().Get("subject")
21 if subject == "" {
22 log.Println("invalid form")
23 return
24 }
25
26 subjectIdent, err := s.idResolver.ResolveIdent(r.Context(), subject)
27 if err != nil {
28 log.Println("failed to follow, invalid did")
29 }
30
31 if currentUser.Did == subjectIdent.DID.String() {
32 log.Println("cant follow or unfollow yourself")
33 return
34 }
35
36 client, err := s.oauth.AuthorizedClient(r)
37 if err != nil {
38 log.Println("failed to authorize client")
39 return
40 }
41
42 switch r.Method {
43 case http.MethodPost:
44 createdAt := time.Now().Format(time.RFC3339)
45 rkey := tid.TID()
46 resp, err := client.RepoPutRecord(r.Context(), &comatproto.RepoPutRecord_Input{
47 Collection: tangled.GraphFollowNSID,
48 Repo: currentUser.Did,
49 Rkey: rkey,
50 Record: &lexutil.LexiconTypeDecoder{
51 Val: &tangled.GraphFollow{
52 Subject: subjectIdent.DID.String(),
53 CreatedAt: createdAt,
54 }},
55 })
56 if err != nil {
57 log.Println("failed to create atproto record", err)
58 return
59 }
60
61 log.Println("created atproto record: ", resp.Uri)
62
63 follow := &models.Follow{
64 UserDid: currentUser.Did,
65 SubjectDid: subjectIdent.DID.String(),
66 Rkey: rkey,
67 }
68
69 err = db.AddFollow(s.db, follow)
70 if err != nil {
71 log.Println("failed to follow", err)
72 return
73 }
74
75 s.notifier.NewFollow(r.Context(), follow)
76
77 s.pages.FollowFragment(w, pages.FollowFragmentParams{
78 UserDid: subjectIdent.DID.String(),
79 FollowStatus: models.IsFollowing,
80 })
81
82 return
83 case http.MethodDelete:
84 // find the record in the db
85 follow, err := db.GetFollow(s.db, currentUser.Did, subjectIdent.DID.String())
86 if err != nil {
87 log.Println("failed to get follow relationship")
88 return
89 }
90
91 _, err = client.RepoDeleteRecord(r.Context(), &comatproto.RepoDeleteRecord_Input{
92 Collection: tangled.GraphFollowNSID,
93 Repo: currentUser.Did,
94 Rkey: follow.Rkey,
95 })
96
97 if err != nil {
98 log.Println("failed to unfollow")
99 return
100 }
101
102 err = db.DeleteFollowByRkey(s.db, currentUser.Did, follow.Rkey)
103 if err != nil {
104 log.Println("failed to delete follow from DB")
105 // this is not an issue, the firehose event might have already done this
106 }
107
108 s.pages.FollowFragment(w, pages.FollowFragmentParams{
109 UserDid: subjectIdent.DID.String(),
110 FollowStatus: models.IsNotFollowing,
111 })
112
113 s.notifier.DeleteFollow(r.Context(), follow)
114
115 return
116 }
117
118}