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use iced::{button, container, pick_list, slider, Background, Color};

const ACTIVE: Color = Color::from_rgb(
    0x72 as f32 / 255.0,
    0x89 as f32 / 255.0,
    0xDA as f32 / 255.0,
);

const DESTRUCTIVE: Color = Color::from_rgb(
    0xC0 as f32 / 255.0,
    0x47 as f32 / 255.0,
    0x47 as f32 / 255.0,
);

const HOVERED: Color = Color::from_rgb(
    0x67 as f32 / 255.0,
    0x7B as f32 / 255.0,
    0xC4 as f32 / 255.0,
);

const BACKGROUND: Color = Color::from_rgb(
    0x2F as f32 / 255.0,
    0x31 as f32 / 255.0,
    0x36 as f32 / 255.0,
);

pub struct Container;

impl container::StyleSheet for Container {
    fn style(&self) -> container::Style {
        container::Style {
            background: Some(Background::Color(Color::from_rgb8(
                0x36, 0x39, 0x3F,
            ))),
            text_color: Some(Color::WHITE),
            ..container::Style::default()
        }
    }
}

pub struct Button;

impl button::StyleSheet for Button {
    fn active(&self) -> button::Style {
        button::Style {
            background: Some(Background::Color(ACTIVE)),
            border_radius: 3,
            text_color: Color::WHITE,
            ..button::Style::default()
        }
    }

    fn hovered(&self) -> button::Style {
        button::Style {
            background: Some(Background::Color(HOVERED)),
            text_color: Color::WHITE,
            ..self.active()
        }
    }

    fn pressed(&self) -> button::Style {
        button::Style {
            border_width: 1,
            border_color: Color::WHITE,
            ..self.hovered()
        }
    }
}

pub struct Clear;

impl button::StyleSheet for Clear {
    fn active(&self) -> button::Style {
        button::Style {
            background: Some(Background::Color(DESTRUCTIVE)),
            border_radius: 3,
            text_color: Color::WHITE,
            ..button::Style::default()
        }
    }

    fn hovered(&self) -> button::Style {
        button::Style {
            background: Some(Background::Color(Color {
                a: 0.5,
                ..DESTRUCTIVE
            })),
            text_color: Color::WHITE,
            ..self.active()
        }
    }

    fn pressed(&self) -> button::Style {
        button::Style {
            border_width: 1,
            border_color: Color::WHITE,
            ..self.hovered()
        }
    }
}

pub struct Slider;

impl slider::StyleSheet for Slider {
    fn active(&self) -> slider::Style {
        slider::Style {
            rail_colors: (ACTIVE, Color { a: 0.1, ..ACTIVE }),
            handle: slider::Handle {
                shape: slider::HandleShape::Circle { radius: 9 },
                color: ACTIVE,
                border_width: 0,
                border_color: Color::TRANSPARENT,
            },
        }
    }

    fn hovered(&self) -> slider::Style {
        let active = self.active();

        slider::Style {
            handle: slider::Handle {
                color: HOVERED,
                ..active.handle
            },
            ..active
        }
    }

    fn dragging(&self) -> slider::Style {
        let active = self.active();

        slider::Style {
            handle: slider::Handle {
                color: Color::from_rgb(0.85, 0.85, 0.85),
                ..active.handle
            },
            ..active
        }
    }
}

pub struct PickList;

impl pick_list::StyleSheet for PickList {
    fn menu(&self) -> pick_list::Menu {
        pick_list::Menu {
            text_color: Color::WHITE,
            background: BACKGROUND.into(),
            border_width: 1,
            border_color: Color {
                a: 0.7,
                ..Color::BLACK
            },
            selected_background: Color {
                a: 0.5,
                ..Color::BLACK
            }
            .into(),
            selected_text_color: Color::WHITE,
        }
    }

    fn active(&self) -> pick_list::Style {
        pick_list::Style {
            text_color: Color::WHITE,
            background: BACKGROUND.into(),
            border_width: 1,
            border_color: Color {
                a: 0.6,
                ..Color::BLACK
            },
            border_radius: 2,
            icon_size: 0.5,
        }
    }

    fn hovered(&self) -> pick_list::Style {
        let active = self.active();

        pick_list::Style {
            border_color: Color {
                a: 0.9,
                ..Color::BLACK
            },
            ..active
        }
    }
}