package domain import ( "context" validation "github.com/go-ozzo/ozzo-validation/v4" ) type WatcherType int64 const ( SubredditWatcher WatcherType = iota UserWatcher TrendingWatcher ) func (wt WatcherType) String() string { switch wt { case SubredditWatcher: return "subreddit" case UserWatcher: return "user" case TrendingWatcher: return "trending" } return "unknown" } type Watcher struct { ID int64 CreatedAt float64 LastNotifiedAt float64 Label string DeviceID int64 AccountID int64 Type WatcherType WatcheeID int64 Author string Subreddit string Upvotes int64 Keyword string Flair string Domain string Hits int64 // Related models Device Device Account Account } func (w *Watcher) Validate() error { return validation.ValidateStruct(w, validation.Field(&w.Label, validation.Required, validation.Length(1, 64)), validation.Field(&w.Type, validation.In(SubredditWatcher, UserWatcher, TrendingWatcher)), validation.Field(&w.WatcheeID, validation.Required), ) } type WatcherRepository interface { GetByID(ctx context.Context, id int64) (Watcher, error) GetBySubredditID(ctx context.Context, id int64) ([]Watcher, error) GetByUserID(ctx context.Context, id int64) ([]Watcher, error) GetByTrendingSubredditID(ctx context.Context, id int64) ([]Watcher, error) GetByDeviceAPNSTokenAndAccountRedditID(ctx context.Context, apns string, rid string) ([]Watcher, error) Create(ctx context.Context, watcher *Watcher) error Update(ctx context.Context, watcher *Watcher) error IncrementHits(ctx context.Context, id int64) error Delete(ctx context.Context, id int64) error DeleteByTypeAndWatcheeID(context.Context, WatcherType, int64) error }