package model

import "time"

// Library represents a music library directory.
type Library struct {
	ID        int       `json:"id"`
	Name      string    `json:"name"`
	Path      string    `json:"path"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
}

// MediaFile represents a single audio file on disk.
type MediaFile struct {
	ID          int       `json:"id"`
	Path        string    `json:"path"`
	LibraryID   int       `json:"library_id"`
	FileSize    int64     `json:"file_size"`
	FileMtimeNs int64     `json:"file_mtime_ns"`
	Format      string    `json:"format"`
	BitRate     int       `json:"bit_rate"`
	SampleRate  int       `json:"sample_rate"`
	LastSeenAt  time.Time `json:"last_seen_at"`
	CreatedAt   time.Time `json:"created_at"`
	UpdatedAt   time.Time `json:"updated_at"`
}

// Artist represents a music artist.
type Artist struct {
	ID   int    `json:"id"`
	Name string `json:"name"`
}

// Album represents a music album.
type Album struct {
	ID       int    `json:"id"`
	Title    string `json:"title"`
	ArtistID int    `json:"artist_id"`
	Cover    string `json:"cover"`
	Year     int    `json:"year"`
}

// Song represents a single track within an album.
type Song struct {
	ID          int    `json:"id"`
	Title       string `json:"title"`
	ArtistID    int    `json:"artist_id"`
	AlbumID     int    `json:"album_id"`
	Duration    int    `json:"duration"`
	MediaFileID int    `json:"media_file_id"`
	TrackNumber int    `json:"track_number"`
	DiscNumber  int    `json:"disc_number"`
	Genre       string `json:"genre"`
}