datamodel.puml

@startuml
title Data model

class Book {
    String: title
    String?: summary
    Date?: releaseDate
    String?: language
    Int?: ageRating
    String?: ISBN
}

class Series {
    String: title
    String?: titleSort
}

class SeriesIssue {
    String?: issueNumber
    Float?: issueNumberSort
}

class Publisher {
    String: name
}

enum ReadingDirection {
    LTR
    RTL
    Vertical
}

class Author {
    String: name
}

class Work {
    String: role
}

class BookCollection {
    String: name
    String?: nameSort
    Bool?: ended
}

class BookCollectionEntry {
    String?: number
    String?: numberSort
}

class SeriesCollectionEntry {
    String?: number
    String?: numberSort
}

class SeriesCollection {
    String: name
    String?: nameSort
    Bool?: ended
}

class Genre {
    String: value
}

class Tag {
    String: value
}

class ExternalId {
    String: url
    String: id
    String?: referential
}


enum SeriesStatus {
    ONGOING
    ENDED
    ABANDONED
    HIATUS
}


Book "0..*" - "0..1" Series: > part of
(Book, Series) .. SeriesIssue

Book "0..*" -up- "0..1" Publisher: > published by
Book "0..*" -up-o "0..*" Genre: > has genres
Book "0..*" -up-o "0..*" Tag: > has tags
Book "1" -up- "0..*" ExternalId: > has externalIds
Book  -up- "0..1"  ReadingDirection: > read as

Book "0..*" -- "0..*" Author: < wrote
(Book, Author) .. Work

Book "0..*" -- "0..*" BookCollection: > part of
(Book, BookCollection) .. BookCollectionEntry


Series -up- "0..1" SeriesStatus: > status
Series "0..*" - "0..*" SeriesCollection: > part of
(Series, SeriesCollection) .. SeriesCollectionEntry

@enduml