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/*
 * RBMenu - Rust Bookmark Manager
 * Copyright (C) 2021-2022 DevHyperCoder
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

use regex::Regex;

/// Use regex to check if the given str is a URL
/// input : link to check against
pub fn is_url(input: &str) -> bool {
    let re = Regex::new( r"^(http://www\.|https://www.|http://|https://)?[a-z0-9]+([-.]{1}[a-z0-9]+)*.[a-z]{2,5}(:[0-9]{1,5})?(/.*)?$").unwrap();
    re.is_match(input)
}

/// Use regex to get the domain name and subdomains from the given URL
/// input : link to get the domain and subdomains
pub fn get_domain_name(input: &str) -> Option<regex::Match> {
    let re = Regex::new(r".*://(?:www.)?([^/]+)").unwrap();
    re.captures(input)?.get(1)
}