use rivet_core::*;
fn held() -> Phrase {
    Phrase {
        length: PPQ,
        notes: vec![
            Note {
                start: 0,
                duration: PPQ / 2,
                pitch: 60,
                velocity: 90,
                ..Default::default()
            },
            Note {
                start: PPQ / 2,
                duration: PPQ / 2,
                pitch: 60,
                velocity: 70,
                ..Default::default()
            },
        ],
    }
}
#[test]
fn role_handoffs_preserve_event_identity_and_respect_locks() {
    let mut source = demo_motif();
    source.notes[1].pitch_locked = true;
    source.notes[0].locked = true;
    for mode in RoleMode::ALL {
        let mut s = PerformanceSettings {
            mode,
            ..Default::default()
        };
        s.voices[0].transpose = -12;
        s.voices[1].transpose = 12;
        s.voices[0].velocity = 50;
        s.voices[1].velocity = 50;
        let p = Performance::compile(&source, &s, 140., false, Meter::default()).unwrap();
        let on: Vec<_> = p
            .events
            .iter()
            .filter(|e| e.message.kind == MessageKind::On && !e.next_cycle)
            .collect();
        assert_eq!(on.len(), source.notes.len());
        for (i, n) in source.notes.iter().enumerate() {
            let role = mode.role(i, n, Meter::default());
            let actual = on.iter().find(|e| e.tick == n.start as i32).unwrap();
            assert_eq!(actual.message.channel, s.voices[role].channel);
            assert_eq!(
                actual.message.key,
                if n.keeps_pitch() {
                    n.pitch
                } else {
                    (n.pitch as i16 + s.voices[role].transpose as i16) as u8
                }
            );
        }
        assert_eq!(on[0].message.value, 90);
    }
}
#[test]
fn controller_interpolation_and_validation_are_explicit() {
    let mut curve = ControllerCurve::default();
    assert_eq!(curve.value_at(500), 64);
    curve.shape(2);
    assert_eq!(curve.value_at(500), 127);
    assert_eq!(curve.value_at(1000), 0);
    curve.cc = 64;
    assert!(curve.validate().is_err());
    let mut s = PerformanceSettings::default();
    s.voices[0].controller.enabled = true;
    s.voices[0].controller.cc = 20;
    let p = Performance::compile(&held(), &s, 120., false, Meter::default()).unwrap();
    assert!(p
        .events
        .iter()
        .any(|e| e.message.kind == MessageKind::Control
            && e.message.key == 20
            && e.message.value == 127));
    s.voices[0].controller.points[1].position = 0;
    assert!(s.validate().is_err());
}
#[test]
fn attack_compensation_warms_up_once_and_wraps_without_cutting_the_next_note() {
    let mut s = PerformanceSettings::default();
    s.voices[0].attack_ms = 100;
    let performance = Performance::compile(&held(), &s, 120., true, Meter::default()).unwrap();
    assert_eq!(performance.lead_in, 192);
    assert!(performance
        .events
        .iter()
        .any(|e| e.tick == -192 && e.message.kind == MessageKind::On && !e.next_cycle));
    let mut player = PerformancePlayer::default();
    player.set_sample_rate(8000.).unwrap();
    player.set_looping(true);
    player.play(performance.clip().unwrap());
    let mut ons = Vec::new();
    for frame in 0..4802 {
        let (_, events) = player.next_frame(120.);
        for e in events.events[..events.len].iter().flatten() {
            if e.kind == MessageKind::On {
                ons.push(frame);
            }
        }
    }
    assert_eq!(ons.len(), 3);
    assert_eq!(ons[0], 0);
    assert!((ons[2] as i32 - 4000).abs() <= 1);
    assert!(player
        .current_messages()
        .events
        .iter()
        .flatten()
        .any(|e| e.kind == MessageKind::On && e.key == 60));
    player.set_looping(false);
    player.play(performance.clip().unwrap());
    let mut count = 0;
    while player.is_playing() {
        let (_, events) = player.next_frame(120.);
        count += events
            .events
            .iter()
            .flatten()
            .filter(|e| e.kind == MessageKind::On)
            .count();
    }
    assert_eq!(count, 2);
}
#[test]
fn public_clip_validation_rejects_bad_roles_and_dense_events() {
    let mut p = Performance::compile(
        &held(),
        &PerformanceSettings::default(),
        120.,
        false,
        Meter::default(),
    )
    .unwrap();
    p.events[0].role = 9;
    assert!(p.clip().is_err());
    let event = TimedMessage {
        tick: 0,
        role: 0,
        message: MidiMessage {
            kind: MessageKind::On,
            channel: 0,
            key: 60,
            value: 90,
            rest: 0,
        },
        next_cycle: false,
    };
    let p = Performance {
        length: PPQ,
        lead_in: 0,
        events: vec![event; 17],
    };
    assert!(p.clip().is_err());
}