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use derive_more::Display;
use yew::prelude::*;
use yewtil::NeqAssign;

#[derive(Clone, Debug, Properties, PartialEq)]
pub struct ImageProps {
    #[prop_or_default]
    pub children: Children,
    #[prop_or_default]
    pub classes: Option<String>,
    /// The size of this component.
    #[prop_or_default]
    pub size: Option<ImageSize>,
}

/// A container for responsive images.
///
/// [https://bulma.io/documentation/elements/image/](https://bulma.io/documentation/elements/image/)
pub struct Image {
    props: ImageProps,
}

impl Component for Image {
    type Message = ();
    type Properties = ImageProps;

    fn create(props: Self::Properties, _: ComponentLink<Self>) -> Self {
        Self { props }
    }

    fn update(&mut self, _: Self::Message) -> ShouldRender {
        false
    }

    fn change(&mut self, props: Self::Properties) -> ShouldRender {
        self.props.neq_assign(props)
    }

    fn view(&self) -> Html {
        let mut classes = Classes::from("image");
        if let Some(extra) = &self.props.classes {
            classes = classes.extend(extra);
        }
        if let Some(size) = &self.props.size {
            classes.push(&size.to_string());
        }
        html! {
            <figure class=classes>
                {self.props.children.clone()}
            </figure>
        }
    }
}

/// Available placeholder sizes for figures.
///
/// https://bulma.io/documentation/elements/image/
#[derive(Clone, Debug, Display, PartialEq)]
#[display(fmt = "is-{}")]
pub enum ImageSize {
    #[display(fmt = "16x16")]
    Is16x16,
    #[display(fmt = "24x24")]
    Is24x24,
    #[display(fmt = "32x32")]
    Is32x32,
    #[display(fmt = "48x48")]
    Is48x48,
    #[display(fmt = "64x64")]
    Is64x64,
    #[display(fmt = "96x96")]
    Is96x96,
    #[display(fmt = "128x128")]
    Is128x128,
    #[display(fmt = "Square")]
    IsSquare,
    #[display(fmt = "1by1")]
    Is1by1,
    #[display(fmt = "5by4")]
    Is5by4,
    #[display(fmt = "4by3")]
    Is4by3,
    #[display(fmt = "3by2")]
    Is3by2,
    #[display(fmt = "5by3")]
    Is5by3,
    #[display(fmt = "16by9")]
    Is16by9,
    #[display(fmt = "2by1")]
    Is2by1,
    #[display(fmt = "3by1")]
    Is3by1,
    #[display(fmt = "4by5")]
    Is4by5,
    #[display(fmt = "3by4")]
    Is3by4,
    #[display(fmt = "2by3")]
    Is2by3,
    #[display(fmt = "3by5")]
    Is3by5,
    #[display(fmt = "9by16")]
    Is9by16,
    #[display(fmt = "1by2")]
    Is1by2,
    #[display(fmt = "1by3")]
    Is1by3,
}