use fluent_embed::localize;
use fluent_embed::Localize;

use fluent_embed::{localize, Localize};
use icu_locid::LanguageIdentifier;

use rstest::rstest;

use rstest::{fixture, rstest};

impl Messages {
    fn expected_message(&self, locale: &str) -> String {
        match self {
            Self::Emails { unread_emails } => match locale {
                "en-US" => match unread_emails {
                    // Only 1 is singular
                    1 => format!("You have {unread_emails} unread email."),
                    // Everything else is plural
                    0 | 2.. => format!("You have {unread_emails} unread emails."),
                },
                "fr" => match unread_emails {
                    // Both 0 & 1 are singular
                    0 | 1 => format!("Vous avez {unread_emails} e-mail non lu."),
                    // Everything else is plural
                    2.. => format!("Vous avez {unread_emails} e-mails non lus."),
                },
                _ => unreachable!(),
            },
        }
    }
}
/// End-to-end test of locale-specific selectors implementation by checking final output

#[case(0, "You have 0 unread emails.")]
#[case(1, "You have 1 unread email.")]
#[case(2, "You have 2 unread emails.")]
#[case(u64::MAX, "You have 18446744073709551615 unread emails.")]
fn english(#[case] unread_emails: u64, #[case] expected: &str) {

fn message_for_locale(
    #[values(0, 1, 2, u64::MAX)] unread_emails: u64,
    #[values("en-US", "fr")] locale: &str,
) {

    assert_eq!(&data.localize(), expected);

    let expected_message = data.expected_message(locale);
    let language_id = LanguageIdentifier::try_from_bytes(locale.as_bytes()).unwrap();
    // Make sure the generated string is what we expect
    let expected_message = data.expected_message(locale);
    assert_eq!(data.message_for_locale(&language_id), expected_message);

emails =
    { $unreadEmails ->
        [one] Vous avez { $unreadEmails } e-mail non lu.
       *[other] Vous avez { $unreadEmails } e-mails non lus.
    }