use super::{super::Animation, CharacterSkeleton, SkeletonAttr};
use std::f32::consts::PI;
use vek::*;

pub struct IdleAnimation;

impl Animation for IdleAnimation {
    type Dependency = f64;
    type Skeleton = CharacterSkeleton;

    fn update_skeleton(
        skeleton: &Self::Skeleton,
        _global_time: f64,
        anim_time: f64,
        _rate: &mut f32,
        skeleton_attr: &SkeletonAttr,
    ) -> Self::Skeleton {
        let mut next = (*skeleton).clone();

        let wave_ultra_slow = (anim_time as f32 * 1.0).sin();
        let wave_ultra_slow_cos = (anim_time as f32 * 1.0 + PI / 2.0).sin();
        let head_abs = ((anim_time as f32 * 0.5 + PI).sin()) + 1.0;

        next.head.offset = Vec3::new(
            0.0,
            -2.0 + skeleton_attr.head.0,
            skeleton_attr.head.1 + wave_ultra_slow * 0.1 + head_abs * -0.5,
        );

        next.head.scale = Vec3::one() * skeleton_attr.head_scale - head_abs * 0.05;

        next.chest.offset = Vec3::new(
            0.0,
            skeleton_attr.chest.0,
            skeleton_attr.chest.1 + wave_ultra_slow * 0.1,
        );
        next.chest.scale = Vec3::one() + head_abs * 0.05;

        next.belt.offset = Vec3::new(
            0.0,
            skeleton_attr.belt.0,
            skeleton_attr.belt.1 + wave_ultra_slow * 0.1,
        );
        next.belt.ori = Quaternion::rotation_x(0.0);
        next.belt.scale = Vec3::one() - head_abs * 0.05;

        next.shorts.offset = Vec3::new(
            0.0,
            skeleton_attr.shorts.0,
            skeleton_attr.shorts.1 + wave_ultra_slow * 0.1,
        );
        next.shorts.ori = Quaternion::rotation_x(0.0);
        next.shorts.scale = Vec3::one();

        next.l_hand.offset = Vec3::new(
            -skeleton_attr.hand.0,
            skeleton_attr.hand.1 + wave_ultra_slow_cos * 0.15,
            skeleton_attr.hand.2 + wave_ultra_slow * 0.5,
        );

        next.l_hand.ori = Quaternion::rotation_x(0.0 + wave_ultra_slow * -0.06);
        next.l_hand.scale = Vec3::one();

        next.r_hand.offset = Vec3::new(
            skeleton_attr.hand.0,
            skeleton_attr.hand.1 + wave_ultra_slow_cos * 0.15,
            skeleton_attr.hand.2 + wave_ultra_slow * 0.5 + head_abs * -0.05,
        );
        next.r_hand.ori = Quaternion::rotation_x(0.0 + wave_ultra_slow * -0.06);
        next.r_hand.scale = Vec3::one() + head_abs * -0.05;

        next.l_foot.offset = Vec3::new(
            -skeleton_attr.foot.0,
            skeleton_attr.foot.1,
            skeleton_attr.foot.2,
        );
        next.l_foot.scale = Vec3::one();

        next.r_foot.offset = Vec3::new(
            skeleton_attr.foot.0,
            skeleton_attr.foot.1,
            skeleton_attr.foot.2,
        );
        next.r_foot.scale = Vec3::one();

        next.l_shoulder.offset = Vec3::new(
            -skeleton_attr.shoulder.0,
            skeleton_attr.shoulder.0,
            skeleton_attr.shoulder.2,
        );
        next.l_shoulder.ori = Quaternion::rotation_x(0.0);
        next.l_shoulder.scale = (Vec3::one() + head_abs * -0.05) * 1.15;

        next.r_shoulder.offset = Vec3::new(
            skeleton_attr.shoulder.0,
            skeleton_attr.shoulder.0,
            skeleton_attr.shoulder.2,
        );
        next.r_shoulder.ori = Quaternion::rotation_x(0.0);
        next.r_shoulder.scale = (Vec3::one() + head_abs * -0.05) * 1.15;

        next.glider.scale = Vec3::one() * 0.0;

        next.main.offset = Vec3::new(-7.0, -5.0, 18.0);
        next.main.ori = Quaternion::rotation_y(2.5) * Quaternion::rotation_z(1.57);
        next.main.scale = Vec3::one() + head_abs * -0.05;

        next.second.offset = Vec3::new(0.0, 0.0, 0.0);
        next.second.scale = Vec3::one() * 0.0;

        next.lantern.offset = Vec3::new(
            skeleton_attr.lantern.0,
            skeleton_attr.lantern.1,
            skeleton_attr.lantern.2,
        );
        next.lantern.ori = Quaternion::rotation_x(0.0);
        next.lantern.scale = Vec3::one() * 0.0;

        next.torso.offset = Vec3::new(0.0, -0.2, 0.1) * skeleton_attr.scaler;
        next.torso.ori = Quaternion::rotation_x(0.0);
        next.torso.scale = Vec3::one() / 11.0 * skeleton_attr.scaler;

        next.control.offset = Vec3::new(0.0, 0.0, 0.0);
        next.control.ori = Quaternion::rotation_x(0.0);
        next.control.scale = Vec3::one();

        next.l_control.offset = Vec3::new(0.0, 0.0, 0.0);
        next.l_control.ori = Quaternion::rotation_x(0.0);
        next.l_control.scale = Vec3::one();

        next.r_control.offset = Vec3::new(0.0, 0.0, 0.0);
        next.r_control.ori = Quaternion::rotation_x(0.0);
        next.r_control.scale = Vec3::one();
        next
    }
}