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//! Sophia adapter for N-Triples.

use crate::NTriplesParser;

impl_triple_source!(NTriplesParser);

#[cfg(test)]
mod test {
    use super::*;
    use rio_api::model::{Literal, NamedNode};
    use sophia_api::graph::Graph;
    use sophia_api::ns::rdf;
    use sophia_api::term::matcher::ANY;
    use sophia_api::term::test::TestTerm;
    use sophia_api::triple::stream::TripleSource;

    #[test]
    fn test_simple_nt_string() -> Result<(), Box<dyn std::error::Error>> {
        let ntriples = r#"
            <http://localhost/ex#me> <http://example.org/ns/knows> _:b1.
            _:b1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://example.org/ns/Person>.
            _:b1 <http://example.org/ns/name> "Alice".
        "#;

        let p = NTriplesParser::new(ntriples.as_ref());

        let g: Vec<[TestTerm<String>; 3]> = p.collect_triples()?;
        assert_eq!(g.len(), 3);
        assert!(g
            .triples_matching(
                &NamedNode {
                    iri: "http://localhost/ex#me"
                },
                &NamedNode {
                    iri: "http://example.org/ns/knows"
                },
                &ANY,
            )
            .next()
            .is_some());
        assert!(g
            .triples_matching(
                &ANY,
                &rdf::type_,
                &NamedNode {
                    iri: "http://example.org/ns/Person"
                },
            )
            .next()
            .is_some());
        assert!(g
            .triples_matching(
                &ANY,
                &NamedNode {
                    iri: "http://example.org/ns/name"
                },
                &Literal::Simple { value: "Alice" },
            )
            .next()
            .is_some());
        Ok(())
    }
}