use safina::select::OptionAbcd;

#[allow(clippy::type_complexity)]
fn test_values() -> (
    OptionAbcd<bool, u8, &'static str, usize>,
    OptionAbcd<bool, u8, &'static str, usize>,
    OptionAbcd<bool, u8, &'static str, usize>,
    OptionAbcd<bool, u8, &'static str, usize>,
) {
    (
        OptionAbcd::A(true),
        OptionAbcd::B(42),
        OptionAbcd::C("s1"),
        OptionAbcd::D(7_usize),
    )
}

#[test]
fn test_as_ref() {
    let (a, b, c, d) = test_values();
    let _: OptionAbcd<&bool, &u8, &&'static str, &usize> = a.as_ref();
    let _: &u8 = b.as_ref().unwrap_b();
    let _: &&'static str = c.as_ref().unwrap_c();
    let _: &usize = d.as_ref().unwrap_d();
    assert!(*(a.as_ref().unwrap_a()));
    assert_eq!(42_u8, *(b.as_ref().unwrap_b()));
    assert_eq!("s1", *(c.as_ref().unwrap_c()));
    assert_eq!(7_usize, *(d.as_ref().unwrap_d()));
}

#[test]
fn test_accessors() {
    let (a, b, c, d) = test_values();
    assert!(*(a.a().unwrap()));
    assert_eq!(None, a.b());
    assert_eq!(None, a.c());
    assert_eq!(None, a.d());

    assert_eq!(None, b.a());
    assert_eq!(42_u8, *(b.b().unwrap()));
    assert_eq!(None, b.c());
    assert_eq!(None, b.d());

    assert_eq!(None, c.a());
    assert_eq!(None, c.b());
    assert_eq!("s1", *(c.c().unwrap()));
    assert_eq!(None, c.d());

    assert_eq!(None, d.a());
    assert_eq!(None, d.b());
    assert_eq!(None, d.c());
    assert_eq!(7_usize, *(d.d().unwrap()));
}

#[test]
fn test_debug() {
    let (a, b, c, d) = test_values();
    assert_eq!("OptionABCD::A(true)", format!("{a:?}"));
    assert_eq!("OptionABCD::B(42)", format!("{b:?}"));
    assert_eq!("OptionABCD::C(\"s1\")", format!("{c:?}"));
    assert_eq!("OptionABCD::D(7)", format!("{d:?}"));
}

#[test]
fn test_display() {
    let (a, b, c, d) = test_values();
    assert_eq!("true", format!("{a}"));
    assert_eq!("42", format!("{b}"));
    assert_eq!("s1", format!("{c}"));
    assert_eq!("7", format!("{d}"));
}

#[test]
fn test_eq() {
    let (a, b, c, d) = test_values();
    assert_eq!(OptionAbcd::A(true), a);
    assert_ne!(OptionAbcd::A(false), a);
    assert_eq!(OptionAbcd::B(42_u8), b);
    assert_ne!(OptionAbcd::B(2_u8), b);
    assert_eq!(OptionAbcd::C("s1"), c);
    assert_ne!(OptionAbcd::C("other"), c);
    assert_eq!(OptionAbcd::D(7_usize), d);
    assert_ne!(OptionAbcd::D(2_usize), d);
    assert_ne!(a, b);
    assert_ne!(a, c);
    assert_ne!(a, d);
    assert_ne!(b, c);
    assert_ne!(b, d);
    assert_ne!(c, d);
}

#[test]
fn test_unwrap() {
    let (a, b, c, d) = test_values();
    let a_clone = a.clone();
    assert!(a_clone.unwrap_a());
    let a_clone = a.clone();
    assert_eq!(
        "expected OptionABCD::B(_) but found OptionABCD::A(true)",
        std::panic::catch_unwind(|| a_clone.unwrap_b())
            .unwrap_err()
            .downcast::<String>()
            .unwrap()
            .as_str()
    );
    let a_clone = a.clone();
    assert_eq!(
        "expected OptionABCD::C(_) but found OptionABCD::A(true)",
        std::panic::catch_unwind(|| a_clone.unwrap_c())
            .unwrap_err()
            .downcast::<String>()
            .unwrap()
            .as_str()
    );
    let a_clone = a.clone();
    assert_eq!(
        "expected OptionABCD::D(_) but found OptionABCD::A(true)",
        std::panic::catch_unwind(|| a_clone.unwrap_d())
            .unwrap_err()
            .downcast::<String>()
            .unwrap()
            .as_str()
    );

    let b_clone = b.clone();
    assert_eq!(
        "expected OptionABCD::A(_) but found OptionABCD::B(42)",
        std::panic::catch_unwind(|| b_clone.unwrap_a())
            .unwrap_err()
            .downcast::<String>()
            .unwrap()
            .as_str()
    );
    let b_clone = b.clone();
    assert_eq!(42_u8, b_clone.unwrap_b());
    let b_clone = b.clone();
    std::panic::catch_unwind(|| b_clone.unwrap_c()).unwrap_err();
    let b_clone = b.clone();
    std::panic::catch_unwind(|| b_clone.unwrap_d()).unwrap_err();

    let c_clone = c.clone();
    std::panic::catch_unwind(|| c_clone.unwrap_a()).unwrap_err();
    let c_clone = c.clone();
    std::panic::catch_unwind(|| c_clone.unwrap_b()).unwrap_err();
    let c_clone = c.clone();
    assert_eq!("s1", c_clone.unwrap_c());
    let c_clone = c.clone();
    std::panic::catch_unwind(|| c_clone.unwrap_d()).unwrap_err();

    let d_clone = d.clone();
    std::panic::catch_unwind(|| d_clone.unwrap_a()).unwrap_err();
    let d_clone = d.clone();
    std::panic::catch_unwind(|| d_clone.unwrap_b()).unwrap_err();
    let d_clone = d.clone();
    std::panic::catch_unwind(|| d_clone.unwrap_c()).unwrap_err();
    let d_clone = d.clone();
    assert_eq!(7_usize, d_clone.unwrap_d());
}

#[test]
fn test_take() {
    let same_a: OptionAbcd<u8, u8, u8, u8> = OptionAbcd::A(42_u8);
    let same_b: OptionAbcd<u8, u8, u8, u8> = OptionAbcd::B(42_u8);
    let same_c: OptionAbcd<u8, u8, u8, u8> = OptionAbcd::C(42_u8);
    let same_d: OptionAbcd<u8, u8, u8, u8> = OptionAbcd::C(42_u8);
    assert_eq!(42_u8, same_a.take());
    assert_eq!(42_u8, same_b.take());
    assert_eq!(42_u8, same_c.take());
    assert_eq!(42_u8, same_d.take());
}