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Monorepo for Tangled
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import ( "net/http" "time"
comatproto "github.com/bluesky-social/indigo/api/atproto" "github.com/bluesky-social/indigo/atproto/syntax" lexutil "github.com/bluesky-social/indigo/lex/util"
"tangled.org/core/api/tangled" "tangled.org/core/appview/db" "tangled.org/core/appview/models" "tangled.org/core/appview/pages" "tangled.org/core/tid")
func (s *State) React(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "React") currentUser := s.oauth.GetMultiAccountUser(r)
subject := r.FormValue("subject-uri") if subject == "" { l.Warn("invalid form") return }
subjectUri, err := syntax.ParseATURI(subject) if err != nil { l.Warn("invalid form", "subject", subject, "err", err) return }
// override collection NSID to new one subjectUri = models.NormalizeReactionSubject(subjectUri)
reactionKind, ok := models.ParseReactionKind(r.URL.Query().Get("kind")) if !ok { l.Warn("invalid reaction kind", "kind", r.URL.Query().Get("kind")) return }
client, err := s.oauth.AuthorizedClient(r) if err != nil { l.Error("failed to authorize client", "err", err) return }
switch r.Method { case http.MethodPost: reaction := models.Reaction{ ReactedByDid: currentUser.Did, Rkey: tid.TID(), Kind: reactionKind, ThreadAt: subjectUri, Created: time.Now(), }
tx, err := s.db.BeginTx(r.Context(), nil) if err != nil { s.logger.Error("failed to start transaction", "err", err) return } defer tx.Rollback()
if err := db.UpsertReaction(tx, reaction); err != nil { l.Error("db: failed to upsert reaction", "err", err) return }
record := reaction.AsRecord() resp, err := comatproto.RepoPutRecord(r.Context(), client, &comatproto.RepoPutRecord_Input{ Collection: tangled.FeedReactionNSID, Repo: currentUser.Did, Rkey: reaction.Rkey, Record: &lexutil.LexiconTypeDecoder{ Val: &record, }, }) if err != nil { l.Error("failed to create atproto record", "err", err) return } l.Info("created atproto record", "uri", resp.Uri)
if err := tx.Commit(); err != nil { s.logger.Error("failed to commit transaction", "err", err) // DB op failed but record is created in PDS. Ingester will backfill the missed operation }
reactionMap, err := db.GetReactionMap(s.db, 20, subjectUri) if err != nil { l.Error("failed to get reactions", "subject", subjectUri) }
s.pages.ThreadReactionFragment(w, pages.ThreadReactionFragmentParams{ Kind: reactionKind, Count: reactionMap[reactionKind].Count, Users: reactionMap[reactionKind].Users, IsReacted: true, CommentRkey: subjectUri.RecordKey().String(), SubjectUri: subject, })
return case http.MethodDelete: tx, err := s.db.BeginTx(r.Context(), nil) if err != nil { l.Error("failed to start transaction", "err", err) } defer tx.Rollback()
reactions, err := db.DeleteReaction(tx, syntax.DID(currentUser.Did), subjectUri, reactionKind) if err != nil { l.Error("failed to delete reactions from db", "err", err) return }
var writes []*comatproto.RepoApplyWrites_Input_Writes_Elem for _, reactionAt := range reactions { writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{ RepoApplyWrites_Delete: &comatproto.RepoApplyWrites_Delete{ Collection: tangled.FeedReactionNSID, Rkey: reactionAt.RecordKey().String(), }, }) } _, err = comatproto.RepoApplyWrites(r.Context(), client, &comatproto.RepoApplyWrites_Input{ Repo: currentUser.Did, Writes: writes, }) if err != nil { l.Error("failed to delete reactions from PDS", "err", err) return }
if err := tx.Commit(); err != nil { l.Error("failed to commit transaction", "err", err) // DB op failed but record is created in PDS. Ingester will backfill the missed operation }
reactionMap, err := db.GetReactionMap(s.db, 20, subjectUri) if err != nil { l.Error("failed to get reactions", "subjectUri", subjectUri, "err", err) return }
s.pages.ThreadReactionFragment(w, pages.ThreadReactionFragmentParams{ Kind: reactionKind, Count: reactionMap[reactionKind].Count, Users: reactionMap[reactionKind].Users, IsReacted: false, CommentRkey: subjectUri.RecordKey().String(), SubjectUri: subject, })
return }}