2024-01-25 11:16:03 -06:00
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use std::{fs::OpenOptions, io::Write, path::PathBuf, process::exit};
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2024-01-24 09:02:52 -06:00
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2024-01-25 10:13:09 -06:00
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use chrono::prelude::Local;
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use clap::Args;
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use epub_builder::{EpubBuilder, EpubContent, ReferenceType, ZipLibrary};
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use file_system_crap::convert_path_to_os_specific;
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use url::Url;
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2024-01-25 08:49:55 -06:00
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mod book;
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mod constants;
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mod file_system_crap;
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mod html;
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mod http;
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mod misc;
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2024-01-25 08:49:55 -06:00
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/// struct that corresponds to arguments for Audiobook generation.
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#[derive(Args, Debug)]
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pub struct AudiobookArgs {
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/// Disable the generation of chapter titles in the audio file. Useful to avoid chapter titles appearing twice.
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#[arg(short, long)]
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pub no_chapter_titles: bool,
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/// Split the novel into multiple audio files by chapter.
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#[arg(short, long)]
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pub split_novel_by_chapters: bool,
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}
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/// struct that corresponds to arguments for Epub generation.
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#[derive(Args, Debug)]
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pub struct EpubArgs {
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/// Disable the inclusion of images.
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/// Will speed up epub generation and significantly decrease epub size.
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#[arg(short, long)]
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pub no_images: bool,
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}
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/// struct that corresponds to arguments for Html generation.
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#[derive(Args, Debug)]
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pub struct HtmlArgs {
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}
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/// struct that corresponds to arguments for Markdown generation.
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#[derive(Args, Debug)]
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pub struct MarkdownArgs {
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/// Disable the generation of chapter titles. Useful to avoid chapter titles appearing twice.
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#[arg(short, long)]
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pub no_chapter_titles: bool,
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/// Disables the inclusion of html image tags in the markdown.
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#[arg(short='i', long)]
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pub no_image_tags: bool,
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}
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/// Generate an audiobook from the given arguments, url, & outputs it to the output directory.
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///
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/// This function DOES NOT do any error checking on the Url or output directory & WILL panic if they are wrong.
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/// Make sure the Url is valid and the output directory is writable BEFORE passing them to this.
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pub fn generate_audiobook(audiobook_args: AudiobookArgs, book_url: Url, output_directory: PathBuf) {
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eprintln!("This is not implemented yet.");
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}
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/// Generate an epub file from the given arguments, url, & outputs it to the output directory.
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///
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/// This function DOES NOT do any error checking on the Url or output directory & WILL panic if they are wrong.
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/// Make sure the Url is valid and the output directory is writable BEFORE passing them to this.
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pub fn generate_epub(epub_args: EpubArgs, book_url: Url, output_directory: PathBuf) {
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// Until xhtml is working on MacOS this notice & exit code will remain.
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// See file_system_crap::setup_html2xhtml() for current status on MacOS support for this mode.
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#[cfg(target_os = "macos")] {
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eprint!("Error! This mode does not currently support MacOS. Try either html mode or markdown mode.");
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exit(1);
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}
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let book = book::Book::new(book_url);
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// Initialize the epub builder.
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let mut epub_builder = EpubBuilder::new(ZipLibrary::new().unwrap()).unwrap();
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// Add author and title metadata.
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epub_builder.stylesheet(constants::EPUB_CSS.as_bytes()).unwrap(); // Use the epub_css in the constants.rs file.
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epub_builder
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.metadata("author", &book.author)
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.expect("Unable to add author metadata");
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epub_builder
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.metadata("title", &book.title)
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.expect("Unable to add title metadata");
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// Download the cover image & add it to the epub.
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let cover_image = http::get_response(book.cover_image_url).get_bytes().to_vec();
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epub_builder.add_cover_image("cover.jpeg", cover_image.as_slice(), "image/jpeg").expect("Unable to add cover image.");
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// Generate the cover xhtml.
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let cover_xhtml = format!(
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r#"<head></head><body><div style="text-align: center;">
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<h1><a href="{0}">{1}</a></h1>
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<img src="cover.jpeg"/>
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<h2>by: {2}</h2>
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<h3>Archived on: {3}</h3></div></body>"#,
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book.book_url,
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book.title,
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book.author,
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chrono::Local::now().to_rfc3339_opts(chrono::SecondsFormat::Secs, false)
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);
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let cover_xhtml = format!("{0}{cover_xhtml}{1}", constants::EPUB_XML_HEAD, constants::EPUB_XML_TAIL);
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// Add the cover xhtml to the epub.
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epub_builder.add_content(
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EpubContent::new("title.xhtml", cover_xhtml.as_bytes())
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.title("Cover")
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.reftype(ReferenceType::Cover),
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).expect("Unable to add cover");
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// Add a table of contents after the cover page.
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epub_builder.inline_toc();
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// Setup html2xhtml on the operating system.
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file_system_crap::setup_html2xhtml();
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// TODO! Generate the epub body, deal with images etc etc. You know pickup from last night etc etc.
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// Finish setup_html2xhtml() first though dummy.
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// Generate the finished epub data as a byte vector.
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let mut finished_epub: Vec<u8> = vec![];
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epub_builder.generate(&mut finished_epub).expect("Unable to generate epub data");
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// Create the epub file and write the finished epub data to it.
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let output_path = convert_path_to_os_specific(output_directory.join(format!("{0}.epub", book.file_name_title)));
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let mut output_file = match OpenOptions::new().write(true).create_new(true).open(&output_path) {
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Ok(output_file) => output_file,
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Err(error) => {
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eprintln!("Error! Unable to create: {0}\n{error}", output_path.to_string_lossy());
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exit(1);
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}
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};
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output_file.write_all(finished_epub.as_slice())
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.expect(format!("Unable to write finished epub data to {0}", output_path.to_string_lossy()).as_str());
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// Delete html2xhtml from the temp directory. It's good to clean up after yourself.
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file_system_crap::delete_html2xhtml();
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}
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/// Generate an html archive from the given arguments, url, & outputs it to the output directory.
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///
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/// This function DOES NOT do any error checking on the Url or output directory & WILL panic if they are wrong.
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/// Make sure the Url is valid and the output directory is writable BEFORE passing them to this.
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pub fn generate_html(html_args: HtmlArgs, book_url: Url, output_directory: PathBuf) {
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eprintln!("This is not implemented yet.");
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}
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/// Generate a markdown file from the given arguments, url, & outputs it to the output directory.
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///
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/// This function DOES NOT do any error checking on the Url or output directory & WILL panic if they are wrong.
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/// Make sure the Url is valid and the output directory is writable BEFORE passing them to this.
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pub fn generate_markdown(markdown_args: MarkdownArgs, book_url: Url, output_directory: PathBuf) {
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let book = book::Book::new(book_url);
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let output_path = convert_path_to_os_specific(output_directory.join(format!("{0}.md", book.file_name_title)));
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// Create the md file. This will crash if it already exists or can not be created.
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let mut output_file = match OpenOptions::new().write(true).create_new(true).open(&output_path) {
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Ok(output_file) => output_file,
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Err(error) => {
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eprintln!("Error! Unable to create: {0}\n{error}", output_path.to_string_lossy());
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exit(1);
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}
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};
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// Append the book title & author.
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let buf = format!("{}\n\nby: {}", &book.title, &book.author);
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output_file.write_all(buf.as_bytes()).unwrap();
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let buf = format!(
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"\nArchived on: {}\n\n",
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Local::now().to_rfc3339_opts(chrono::SecondsFormat::Secs, false)
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);
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output_file.write_all(buf.as_bytes()).unwrap();
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for chapter in book.chapters {
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let mut buf;
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if !markdown_args.no_chapter_titles {
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buf = format!("----\n{}", chapter.chapter_name);
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output_file.write_all(buf.as_bytes()).unwrap();
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}
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if markdown_args.no_image_tags {
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// Remove image tags or not depending on args.
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buf = format!("\n\n{}\n\n", html2md::parse_html(&html::remove_image_tags(&chapter.isolated_chapter_html)));
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} else {
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buf = format!("\n\n{}\n\n", html2md::parse_html(&chapter.isolated_chapter_html.html()));
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}
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output_file.write_all(buf.as_bytes()).unwrap();
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}
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}
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