ph-dl 1.2.3

Get highest quality direct link to download PH videos, or download them automatically.
Documentation 
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use clap::{crate_version, value_t, App, Arg};
use regex::Regex;

fn main() {
    let matches = App::new("ph-dl")
        .version(crate_version!())
        .author("Miika Launiainen <miika.launiainen@gmail.com>")
        .about("Get highest quality direct link to download PH videos, or download them automatically.")
        .arg(
            Arg::with_name("url")
                .help("view key to the video or URL to the video/playlist")
                .required(true),
        )
        .arg(
            Arg::with_name("download")
                .short("d")
                .long("download")
                .help("Download the video automatically"),
        )
        .arg(
            Arg::with_name("show_quality")
                .short("Q")
                .long("show_quality")
                .help("Print all available resolutions"),
        )
        .arg(
            Arg::with_name("quality")
                .short("q")
                .long("quality")
                .takes_value(true)
                .possible_values(&["1", "2", "3", "4"])
                .help("Use specific resolution"),
        )
        .get_matches();

    let url = value_t!(matches.value_of("url"), String).unwrap();
    let download = matches.is_present("download");
    let show_quality = matches.is_present("show_quality");
    let quality = if matches.is_present("quality") {
        value_t!(matches.value_of("quality"), String).unwrap()
    } else {
        "none".to_string()
    };

    let url = check_for_ph_url(&url);

    ph_dl::run(url, download, show_quality, quality);
}

fn check_for_ph_url(url: &str) -> String {
    let normal_url =
        Regex::new(r"(https?://(www\.)?pornhub\.com/view_video\.php\?viewkey=[0-9a-รถ]*)[/&]?")
            .unwrap();
    let playlist = Regex::new(r"https?://(www\.)pornhub.com/playlist/\d+").unwrap();

    if normal_url.is_match(url) {
        let url = match normal_url.captures(url) {
            Some(i) => i.get(1).unwrap().as_str().to_string(),
            None => "Error".to_string(),
        };
        url
    } else if playlist.is_match(url) {
        url.to_string()
    } else {
        return format!("https://www.pornhub.com/view_video.php?viewkey={}", url);
    }
}