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#![crate_type = "lib"]
#![crate_name = "spaceslugs"]

extern crate regex;

use regex::Regex;

pub struct Slug;

impl Slug {
	pub fn from(string: String) -> String {
		let re_replace_non_ascii = Regex::new(r"[^\x00-\x7F]").unwrap();
		let re_replace_single_quotes = Regex::new(r"[']+").unwrap();
		let re_replace_non_char = Regex::new(r"\W+").unwrap();
		let re_replace_spaces = Regex::new(r"[ ]+").unwrap();

		let mut result = string.to_string();

		result = re_replace_non_ascii.replace_all(&result[..], "");
		result = re_replace_single_quotes.replace_all(&result[..], "");
		result = re_replace_non_char.replace_all(&result[..], " ");
		result = result.trim().to_string();
		result = re_replace_spaces.replace_all(&result[..], "-");

		result.to_lowercase()
	}
}

#[test]
fn replace_character_case() {
	assert_eq!("test".to_string(), Slug::from("TEST".to_string()));
}

#[test]
fn replace_single_quotes() {
	assert_eq!("".to_string(), Slug::from("'".to_string()));
}

#[test]
fn replace_non_char() {
	assert_eq!("".to_string(), Slug::from("!".to_string()));
}

#[test]
fn replace_spaces() {
	assert_eq!("1-2".to_string(), Slug::from("1 2".to_string()));
}

#[test]
fn it_works() {
	let title = "This: just 1 great test title, y'know?...".to_string();
	assert_eq!("this-just-1-great-test-title-yknow".to_string(), Slug::from(title));
}