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extern crate inflector;

mod adjectives;
mod adverbs;
mod case;
mod nouns;
mod phrase;
mod sha;

pub use self::case::Case;
pub use self::phrase::{ParsePhraseError, Phrase};

/// Looks up a phrase from a given str slice. It should be able to look up
/// any sized string but only if it's a valid hexadecimal.
pub fn lookup(sha: &str) -> Result<Phrase, ParsePhraseError> {
    sha.parse()
}

#[cfg(test)]
mod tests {
    use super::*;
    use std::collections::HashSet;
    use std::hash::Hash;

    fn has_unique_elements<T>(iter: T) -> bool
    where
        T: IntoIterator,
        T::Item: Eq + Hash,
    {
        let mut uniq = HashSet::new();
        iter.into_iter().all(move |x| uniq.insert(x))
    }

    #[test]
    fn unique_function_detects_non_unique() {
        assert!(!has_unique_elements(vec![1, 1].iter()));
    }

    #[test]
    fn adverbs_are_unique() {
        assert!(has_unique_elements(adverbs::WORDS.iter()));
    }

    #[test]
    fn adjectives_are_unique() {
        assert!(has_unique_elements(adjectives::WORDS.iter()));
    }

    #[test]
    fn nouns_are_unique() {
        assert!(has_unique_elements(nouns::WORDS.iter()));
    }
}