use anyhow::{Context, Error, Result};
use reqwest::{get, Url};
use urlparse::quote_plus as urlparse_quote_plus;

pub(crate) fn quote_plus(text: &str) -> Result<String, Error> {
    Ok(urlparse_quote_plus(text, b"")?)
}

// TODO: Either catinator should have a URL shortening utility module,
// or we should start our own service
pub(crate) async fn shorten_url(url: &str) -> Result<String, Error> {
    // This just uses the first service gonzobot uses too
    let short_url = get(Url::parse(&format!(
        "https://is.gd/create.php?format=simple&url={}",
        url
    ))
    .context("Failed to parse url")?)
    .await
    .context("Failed to make request")?
    .text()
    .await
    .context("failed to get request response text")?;

    Ok(short_url)
}

#[cfg(test)]
mod tests {
    use super::{quote_plus};
    use anyhow::{Error, Result};

    #[test]
    fn test_quote_plus_1() -> Result<(), Error> {
        assert_eq!(quote_plus("5/10")?, "5%2F10");
        Ok(())
    }

    #[test]
    fn test_quote_plus_2() -> Result<(), Error> {
        assert_eq!(quote_plus("1 * 2")?, "1+%2A+2");
        Ok(())
    }

    #[test]
    fn test_quote_plus_3() -> Result<(), Error> {
        assert_eq!(quote_plus(&quote_plus("1 * 2")?)?, "1%2B%252A%2B2");
        Ok(())
    }
}