model

type Book struct {
	ID                     int
	Title                  string
	Authors                []string
	Pages                  int
	Slug                   string
	ImageURL               string
	Rating                 float64
	RatingsCount           int
	ReviewsCount           int
	UsersCount             int
	UsersReadCount         int
	ReleaseDate            string
	FeaturedSeries         string
	FeaturedSeriesPosition int
}

type DayActivity struct {
	Date    time.Time
	Minutes int
}

type PageUpdate struct {
	Absolute int  // target page (if not relative)
	Delta    int  // delta (if relative)
	Relative bool // true if +N or -N
}

type ReadingSession struct {
	ID        int
	BookID    int // 0 = no book associated
	StartedAt time.Time
	EndedAt   *time.Time // nil = still running (should not be stored without end)
	Notes     string
	BookTitle string // denormalized for display
}

type SearchMode string

type SearchResult struct {
	ID       int
	Title    string
	Authors  []string
	Pages    int
	Slug     string
	ImageURL string
	Rating   float64
	Ratings  int
}

type Status int

type StreakInfo struct {
	Current   int  // consecutive days ending today or yesterday
	Longest   int  // longest streak ever
	Total     int  // total days with at least one session
	ReadToday bool // whether there's a completed session today
}

type TimerState struct {
	BookID    int       `json:"book_id"`
	StartedAt time.Time `json:"started_at"`
}

type UserBook struct {
	ID            int
	BookID        int
	StatusID      Status
	CurrentPage   int
	Book          Book
	UserBookReads []UserBookRead
	UpdatedAt     time.Time
}

type UserBookRead struct {
	ID            int
	UserBookID    int
	ProgressPages int
	StartedAt     *time.Time
	FinishedAt    *time.Time
}

type WeeklyStats struct {
	Days       [7]int // minutes per day (Mon=0 .. Sun=6)
	Total      int    // total minutes in the period
	Sessions   int    // total number of sessions
	LongestDay int    // index of day with most reading
}