use vec_reg_common::{CompiledRegex, Regex};

#[test]
fn without_capture() {
    let reg = Regex::is(1).compile();
    assert!(reg.captures(&[1]).is_some());
    assert!(reg.captures(&[1]).unwrap().get(1).is_none());
}

#[test]
fn with_capture() {
    let is_even = |x: &i32| x % 2 == 0;
    let is_odd = |x: &i32| x % 2 == 1;
    let reg = Regex::concat(
        Regex::group(Regex::repeat1(Regex::satisfy(is_even), true)),
        Regex::group(Regex::repeat1(Regex::satisfy(is_odd), true)),
    )
    .compile();
    let captures = reg.captures(&[2, 4, 6, 3, 5, 7]);
    assert!(captures.is_some());

    let capture_1 = &captures.as_ref().unwrap().get(1).unwrap();
    assert_eq!(capture_1.range(), 0..3);
    assert_eq!(capture_1.values(), &[2, 4, 6]);

    let capture_2 = &captures.as_ref().unwrap().get(2).unwrap();
    assert_eq!(capture_2.range(), 3..6);
    assert_eq!(capture_2.values(), &[3, 5, 7]);
}

#[test]
fn non_capture_group() {
    let is_even = |x: &i32| x % 2 == 0;
    let is_odd = |x: &i32| x % 2 == 1;
    let reg = Regex::concat(
        Regex::non_capturing_group(Regex::repeat1(Regex::satisfy(is_even), true)),
        Regex::group(Regex::repeat1(Regex::satisfy(is_odd), true)),
    )
    .compile();
    let captures = reg.captures(&[2, 4, 6, 3, 5, 7]);
    assert!(captures.is_some());

    let capture_1 = &captures.as_ref().unwrap().get(1).unwrap();
    assert_eq!(capture_1.range(), 3..6);
    assert_eq!(capture_1.values(), &[3, 5, 7]);
}

#[test]
fn named_capture_group() {
    let is_even = |x: &i32| x % 2 == 0;
    let is_odd = |x: &i32| x % 2 == 1;
    let reg = Regex::concat(
        Regex::named_group("is_even", Regex::repeat1(Regex::satisfy(is_even), true)),
        Regex::group(Regex::repeat1(Regex::satisfy(is_odd), true)),
    )
    .compile();
    let captures = reg.captures(&[2, 4, 6, 3, 5, 7]);
    assert!(captures.is_some());

    let capture_1 = &captures.as_ref().unwrap().get(1).unwrap();
    assert_eq!(capture_1.range(), 0..3);
    assert_eq!(capture_1.values(), &[2, 4, 6]);

    let capture_is_even = &captures.as_ref().unwrap().name("is_even").unwrap();
    assert_eq!(capture_is_even.range(), 0..3);
    assert_eq!(capture_is_even.values(), &[2, 4, 6]);

    let capture_2 = &captures.as_ref().unwrap().get(2).unwrap();
    assert_eq!(capture_2.range(), 3..6);
    assert_eq!(capture_2.values(), &[3, 5, 7]);
}