from ebooklib import epub

if __name__ == "__main__":
    book = epub.EpubBook()

    # add metadata
    book.set_identifier("sample123456")
    book.set_title("Sample book")
    book.set_language("en")

    book.add_author("Aleksandar Erkalovic")

    # intro chapter
    c1 = epub.EpubHtml(title="Introduction", file_name="intro.xhtml", lang="hr")
    c1.content = (
        "<html><head></head><body><h1>Introduction</h1>"
        "<p>Introduction paragraph where i explain what is happening.</p></body></html>"
    )

    # defube style
    style = """BODY { text-align: justify;}"""

    default_css = epub.EpubItem(
        uid="style_default",
        file_name="style/default.css",
        media_type="text/css",
        content=style,
    )
    book.add_item(default_css)

    # about chapter
    c2 = epub.EpubHtml(title="About this book", file_name="about.xhtml")
    c2.content = "<h1>About this book</h1><p>Helou, this is my book! There are many books, but this one is mine.</p>"
    c2.set_language("hr")
    c2.properties.append("rendition:layout-pre-paginated rendition:orientation-landscape rendition:spread-none")
    c2.add_item(default_css)

    # add chapters to the book
    book.add_item(c1)
    book.add_item(c2)

    # create table of contents
    # - add manual link
    # - add section
    # - add auto created links to chapters

    book.toc = (
        epub.Link("intro.xhtml", "Introduction", "intro"),
        (epub.Section("Languages"), (c1, c2)),
    )

    # add navigation files
    book.add_item(epub.EpubNcx())
    book.add_item(epub.EpubNav())

    # define css style
    style = """
@namespace epub "http://www.idpf.org/2007/ops";

body {
    font-family: Cambria, Liberation Serif, Bitstream Vera Serif, Georgia, Times, Times New Roman, serif;
}

h2 {
     text-align: left;
     text-transform: uppercase;
     font-weight: 200;
}

ol {
        list-style-type: none;
}

ol > li:first-child {
        margin-top: 0.3em;
}


nav[epub|type~='toc'] > ol > li > ol  {
    list-style-type:square;
}


nav[epub|type~='toc'] > ol > li > ol > li {
        margin-top: 0.3em;
}

"""

    # add css file
    nav_css = epub.EpubItem(uid="style_nav", file_name="style/nav.css", media_type="text/css", content=style)
    book.add_item(nav_css)

    # create spine
    book.spine = ["nav", c1, c2]

    # create epub file
    epub.write_epub("test01.epub", book, {})
