scenario

type Point struct {
	ID       int64   `json:"id" db:"id"`
	StrokeID int64   `json:"stroke_id" db:"stroke_id"`
	X        float64 `json:"x" db:"x"`
	Y        float64 `json:"y" db:"y"`
}

type Response struct {
	Error     string  `json:"error,omitempty"`
	Room      *Room   `json:"room,omitempty"`
	Rooms     []Room  `json:"rooms,omitempty"`
	Stroke    *Stroke `json:"stroke,omitempty"`
	Token     string  `json:"token,omitempty"`     // /api/csrf_tokenはこっち
	CSRFToken string  `json:"csrfToken,omitempty"` // HTMLの__ASYNC_PROPS__はこっち
}

type Room struct {
	ID           int64     `json:"id" db:"id"`
	Name         string    `json:"name" db:"name"`
	CanvasWidth  int       `json:"canvas_width" db:"canvas_width"`
	CanvasHeight int       `json:"canvas_height" db:"canvas_height"`
	CreatedAt    time.Time `json:"created_at" db:"created_at"`
	Strokes      []Stroke  `json:"strokes"`
	StrokeCount  int       `json:"stroke_count"`
	WatcherCount int       `json:"watcher_count"`
}

type RoomWatcher struct {
	EndCh            chan struct{}
	StrokeLogs       []StrokeLog
	WatcherCountLogs []WatcherCountLog
	// contains filtered or unexported fields
}

type StaticFile struct {
	Path string
	MD5  string
}

type Stroke struct {
	ID        int64     `json:"id" db:"id"`
	RoomID    int64     `json:"room_id" db:"room_id"`
	Width     int       `json:"width" db:"width"`
	Red       int       `json:"red" db:"red"`
	Green     int       `json:"green" db:"green"`
	Blue      int       `json:"blue" db:"blue"`
	Alpha     float64   `json:"alpha" db:"alpha"`
	CreatedAt time.Time `json:"created_at" db:"created_at"`
	Points    []Point   `json:"points" db:"points"`
}

type StrokeLog struct {
	ReceivedTime time.Time
	Stroke
}

type WatcherCountLog struct {
	ReceivedTime time.Time
	Count        int
}