onasty/internal/service/notesrv/notesrv.go (view raw)
Smirnov Oleksandr
Smirnov Oleksandr
ss2316544@gmail.com feat(api): get note metadata (#148)..., 11 months ago
ss2316544@gmail.com feat(api): get note metadata (#148)..., 11 months ago
| 1 | package notesrv |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "log/slog" |
| 7 | "time" |
| 8 | |
| 9 | "github.com/gofrs/uuid/v5" |
| 10 | "github.com/olexsmir/onasty/internal/dtos" |
| 11 | "github.com/olexsmir/onasty/internal/hasher" |
| 12 | "github.com/olexsmir/onasty/internal/models" |
| 13 | "github.com/olexsmir/onasty/internal/store/psql/noterepo" |
| 14 | "github.com/olexsmir/onasty/internal/store/rdb/notecache" |
| 15 | ) |
| 16 | |
| 17 | var ErrNotePasswordNotProvided = errors.New("note: password was not provided") |
| 18 | |
| 19 | type NoteServicer interface { |
| 20 | // Create creates note |
| 21 | // if slug is empty it will be generated, otherwise used as is |
| 22 | // if userID is empty it means user isn't authorized so it will be used |
| 23 | Create(ctx context.Context, note dtos.CreateNote, userID uuid.UUID) (dtos.NoteSlug, error) |
| 24 | |
| 25 | // GetBySlugAndRemoveIfNeeded returns note by slug, and removes if if needed. |
| 26 | // If note is not found returns [models.ErrNoteNotFound]. |
| 27 | GetBySlugAndRemoveIfNeeded( |
| 28 | ctx context.Context, |
| 29 | input GetNoteBySlugInput, |
| 30 | ) (dtos.GetNote, error) |
| 31 | |
| 32 | // GetNoteMetadataBySlug returns note metadata by slug. |
| 33 | // If note is not found returns [models.ErrNoteNotFound]. |
| 34 | GetNoteMetadataBySlug(ctx context.Context, slug dtos.NoteSlug) (dtos.NoteMetadata, error) |
| 35 | |
| 36 | // GetAllByAuthorID returns all notes by author id. |
| 37 | GetAllByAuthorID( |
| 38 | ctx context.Context, |
| 39 | authorID uuid.UUID, |
| 40 | ) ([]dtos.NoteDetailed, error) |
| 41 | |
| 42 | // UpdateExpirationTimeSettings updates expiresAt and burnBeforeExpiration. |
| 43 | // If notes is not found returns [models.ErrNoteNotFound]. |
| 44 | UpdateExpirationTimeSettings( |
| 45 | ctx context.Context, |
| 46 | patchData dtos.PatchNote, |
| 47 | slug dtos.NoteSlug, |
| 48 | userID uuid.UUID, |
| 49 | ) error |
| 50 | |
| 51 | // UpdatePassword sets or updates notes password. |
| 52 | // If notes is not found returns [models.ErrNoteNotFound]. |
| 53 | UpdatePassword(ctx context.Context, slug dtos.NoteSlug, passwd string, userID uuid.UUID) error |
| 54 | |
| 55 | // DeleteBySlug deletes note by slug |
| 56 | DeleteBySlug(ctx context.Context, slug dtos.NoteSlug, userID uuid.UUID) error |
| 57 | } |
| 58 | |
| 59 | var _ NoteServicer = (*NoteSrv)(nil) |
| 60 | |
| 61 | type NoteSrv struct { |
| 62 | noterepo noterepo.NoteStorer |
| 63 | hasher hasher.Hasher |
| 64 | cache notecache.NoteCacher |
| 65 | } |
| 66 | |
| 67 | func New(noterepo noterepo.NoteStorer, hasher hasher.Hasher, cache notecache.NoteCacher) *NoteSrv { |
| 68 | return &NoteSrv{ |
| 69 | noterepo: noterepo, |
| 70 | hasher: hasher, |
| 71 | cache: cache, |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | func (n *NoteSrv) Create( |
| 76 | ctx context.Context, |
| 77 | inp dtos.CreateNote, |
| 78 | userID uuid.UUID, |
| 79 | ) (dtos.NoteSlug, error) { |
| 80 | slog.DebugContext(ctx, "creating", "inp", inp) |
| 81 | |
| 82 | if inp.Slug == "" { |
| 83 | inp.Slug = uuid.Must(uuid.NewV4()).String() |
| 84 | } |
| 85 | |
| 86 | if inp.Password != "" { |
| 87 | hashedPassword, err := n.hasher.Hash(inp.Password) |
| 88 | if err != nil { |
| 89 | return "", err |
| 90 | } |
| 91 | inp.Password = hashedPassword |
| 92 | } |
| 93 | |
| 94 | //nolint:exhaustruct // ID - cannot be predicted, and ReadAt will be set on read |
| 95 | note := models.Note{ |
| 96 | Content: inp.Content, |
| 97 | Slug: inp.Slug, |
| 98 | Password: inp.Password, |
| 99 | BurnBeforeExpiration: inp.BurnBeforeExpiration, |
| 100 | CreatedAt: inp.CreatedAt, |
| 101 | ExpiresAt: inp.ExpiresAt, |
| 102 | } |
| 103 | if err := note.Validate(); err != nil { |
| 104 | return "", err |
| 105 | } |
| 106 | |
| 107 | if err := n.noterepo.Create(ctx, note); err != nil { |
| 108 | return "", err |
| 109 | } |
| 110 | |
| 111 | if !userID.IsNil() { |
| 112 | if err := n.noterepo.SetAuthorIDBySlug(ctx, inp.Slug, userID); err != nil { |
| 113 | return "", err |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | return inp.Slug, nil |
| 118 | } |
| 119 | |
| 120 | func (n *NoteSrv) GetBySlugAndRemoveIfNeeded( |
| 121 | ctx context.Context, |
| 122 | inp GetNoteBySlugInput, |
| 123 | ) (dtos.GetNote, error) { |
| 124 | note, err := n.getNote(ctx, inp) |
| 125 | if err != nil { |
| 126 | return dtos.GetNote{}, err |
| 127 | } |
| 128 | |
| 129 | if note.IsExpired() { |
| 130 | return dtos.GetNote{}, models.ErrNoteExpired |
| 131 | } |
| 132 | |
| 133 | respNote := dtos.GetNote{ |
| 134 | Content: note.Content, |
| 135 | ReadAt: note.ReadAt, |
| 136 | CreatedAt: note.CreatedAt, |
| 137 | ExpiresAt: note.ExpiresAt, |
| 138 | } |
| 139 | |
| 140 | // since not every note should be burn before expiration |
| 141 | // we return early if it's not |
| 142 | if note.ShouldBeBurnt() { |
| 143 | return respNote, nil |
| 144 | } |
| 145 | |
| 146 | return respNote, n.noterepo.RemoveBySlug(ctx, inp.Slug, time.Now()) |
| 147 | } |
| 148 | |
| 149 | func (n *NoteSrv) GetNoteMetadataBySlug( |
| 150 | ctx context.Context, |
| 151 | slug dtos.NoteSlug, |
| 152 | ) (dtos.NoteMetadata, error) { |
| 153 | note, err := n.noterepo.GetMetadataBySlug(ctx, slug) |
| 154 | return note, err |
| 155 | } |
| 156 | |
| 157 | func (n *NoteSrv) GetAllByAuthorID( |
| 158 | ctx context.Context, |
| 159 | authorID uuid.UUID, |
| 160 | ) ([]dtos.NoteDetailed, error) { |
| 161 | notes, err := n.noterepo.GetAllByAuthorID(ctx, authorID) |
| 162 | if err != nil { |
| 163 | return nil, err |
| 164 | } |
| 165 | |
| 166 | var resNotes []dtos.NoteDetailed |
| 167 | for _, note := range notes { |
| 168 | resNotes = append(resNotes, dtos.NoteDetailed{ |
| 169 | Content: note.Content, |
| 170 | Slug: note.Slug, |
| 171 | BurnBeforeExpiration: note.BurnBeforeExpiration, |
| 172 | HasPassword: note.Password != "", |
| 173 | CreatedAt: note.CreatedAt, |
| 174 | ExpiresAt: note.ExpiresAt, |
| 175 | ReadAt: note.ReadAt, |
| 176 | }) |
| 177 | } |
| 178 | |
| 179 | return resNotes, nil |
| 180 | } |
| 181 | |
| 182 | func (n *NoteSrv) UpdateExpirationTimeSettings( |
| 183 | ctx context.Context, |
| 184 | patchData dtos.PatchNote, |
| 185 | slug dtos.NoteSlug, |
| 186 | userID uuid.UUID, |
| 187 | ) error { |
| 188 | return n.noterepo.UpdateExpirationTimeSettingsBySlug(ctx, slug, patchData, userID) |
| 189 | } |
| 190 | |
| 191 | func (n *NoteSrv) UpdatePassword( |
| 192 | ctx context.Context, |
| 193 | slug dtos.NoteSlug, |
| 194 | passwd string, |
| 195 | userID uuid.UUID, |
| 196 | ) error { |
| 197 | if len(passwd) == 0 { |
| 198 | return ErrNotePasswordNotProvided |
| 199 | } |
| 200 | |
| 201 | hashedPassword, err := n.hasher.Hash(passwd) |
| 202 | if err != nil { |
| 203 | return err |
| 204 | } |
| 205 | |
| 206 | return n.noterepo.UpdatePasswordBySlug(ctx, slug, userID, hashedPassword) |
| 207 | } |
| 208 | |
| 209 | func (n *NoteSrv) DeleteBySlug( |
| 210 | ctx context.Context, |
| 211 | slug dtos.NoteSlug, |
| 212 | authorID uuid.UUID, |
| 213 | ) error { |
| 214 | return n.noterepo.DeleteNoteBySlug(ctx, slug, authorID) |
| 215 | } |
| 216 | |
| 217 | func (n *NoteSrv) getNote(ctx context.Context, inp GetNoteBySlugInput) (models.Note, error) { |
| 218 | if r, err := n.cache.GetNote(ctx, inp.Slug); err == nil { |
| 219 | return r, nil |
| 220 | } |
| 221 | |
| 222 | note, err := n.getNoteFromDBasedOnInput(ctx, inp) |
| 223 | if err != nil { |
| 224 | return models.Note{}, err |
| 225 | } |
| 226 | |
| 227 | if !note.IsRead() { |
| 228 | if err = n.cache.SetNote(ctx, inp.Slug, note); err != nil { |
| 229 | slog.ErrorContext(ctx, "notecache", "err", err) |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | return note, err |
| 234 | } |
| 235 | |
| 236 | func (n *NoteSrv) getNoteFromDBasedOnInput( |
| 237 | ctx context.Context, |
| 238 | inp GetNoteBySlugInput, |
| 239 | ) (models.Note, error) { |
| 240 | if inp.HasPassword() { |
| 241 | hashedPassword, err := n.hasher.Hash(inp.Password) |
| 242 | if err != nil { |
| 243 | return models.Note{}, err |
| 244 | } |
| 245 | |
| 246 | return n.noterepo.GetBySlugAndPassword(ctx, inp.Slug, hashedPassword) |
| 247 | } |
| 248 | return n.noterepo.GetBySlug(ctx, inp.Slug) |
| 249 | } |