use iced::{
    Background,
    Color,
    Theme,
    widget,
};

#[macro_export]
macro_rules! list_item {
    ($title:expr, $($x:expr),+ $(,)?) => (
        $crate::widget::list_row!(
            $crate::iced::widget::Text::new($title),
            $crate::iced::widget::horizontal_space(
                $crate::iced::Length::Fill
            ),
            $($x),+
        )
    );
}
pub use list_item;

#[macro_export]
macro_rules! list_row {
    ($($x:expr),+ $(,)?) => (
        $crate::iced::widget::Row::with_children(vec![
            $($crate::iced::Element::from($x)),+
        ])
        .align_items(Alignment::Center)
        .padding([0, 8])
        .spacing(12)
    );
}
pub use list_row;

#[macro_export]
macro_rules! list_section {
    ($title:expr, $($x:expr),+ $(,)?) => (
        $crate::iced::widget::Column::with_children(vec![
            $crate::iced::widget::Text::new($title)
            .font($crate::font::FONT_SEMIBOLD)
            .into()
            ,
            $crate::iced::widget::Container::new({
                let mut children = vec![$($crate::iced::Element::from($x)),+];

                //TODO: more efficient method for adding separators
                let mut i = 1;
                while i < children.len() {
                    children.insert(i, $crate::iced::widget::horizontal_rule(12).into());
                    i += 2;
                }

                $crate::iced::widget::Column::with_children(children)
                .spacing(12)
            })
            .padding([12, 16])
            .style(theme::Container::Custom(
                $crate::widget::list_section_style
            ))
            .into()
        ])
        .spacing(8)
    );
}
pub use list_section;

pub fn list_section_style(theme: &Theme) -> widget::container::Appearance {
    let cosmic = &theme.cosmic().primary;
    widget::container::Appearance {
        text_color: Some(cosmic.on.into()),
        background: Some(Background::Color(cosmic.base.into())),
        border_radius: 8.0,
        border_width: 0.0,
        border_color: Color::TRANSPARENT,
    }
}

#[macro_export]
macro_rules! list_view {
    ($($x:expr),+ $(,)?) => (
        $crate::iced::widget::Column::with_children(
            vec![$($crate::iced::Element::from($x)),+]
        )
        .spacing(24)
        .padding(24)
        .max_width(600)
    );
}
pub use list_view;