//! The Askama entry point for the described "remove from cart" button.
//!
//! Shape 8 (`b279b9eb`), through the glue-module ruling `27d5e5b8`.
//!
//! # The confirm is carried across rather than settled here
//!
//! This is the weakest case in the shape's destructive column: taking a line
//! off a cart is undone by adding it again, and the prompt asks about a
//! decision the reader has made by pressing a button labelled Remove. Whether
//! it earns its keep is a question for the copy, not for the conversion, so the
//! prompt moves as it was written and the question is filed rather than
//! answered by a translation.
//!
//! The tone is not in question: the row goes.
//!
//! `DELETE /api/cart/{item}` is a plain API route the description layer does
//! not serve; the page already gives the row an id, so the control names it.
//! See [`Action::replaces`].
//!
//! Ids arrive as `impl Display` rather than `&str`: the caller is Askama and
//! the server's ids are typed newtypes over `Uuid`, so asking for a string
//! would push a `to_string()` into every call site to say what `format!`
//! already says here.

use std::fmt;

use makeover_layout::Tone;
use quasi_router::screen::Act;
use quasi_router::{Action, Node};

/// The remove button for one cart line.
#[must_use]
pub fn html(item_id: impl fmt::Display) -> String {
    use quasi_axum::Serves as _;

    let act = Act::new(
        "Remove",
        Action::delete(format!("/api/cart/{item_id}")).replacing(format!("cart-row-{item_id}")),
    )
    .tone(Tone::Danger)
    .confirm("Remove this item from your cart?");

    quasi_webview::Webview::new().fragment(&Node::Act(act))
}

#[cfg(test)]
mod tests {
    #[test]
    fn a_removal_names_its_route_its_row_and_its_prompt() {
        let html = super::html("i7");

        assert!(html.contains(r#"hx-delete="/api/cart/i7""#), "{html}");
        assert!(html.contains(r##"hx-target="#cart-row-i7""##), "{html}");
        assert!(
            html.contains(r#"hx-confirm="Remove this item from your cart?""#),
            "{html}"
        );
    }

    #[test]
    fn a_removal_says_it_is_dangerous() {
        assert!(super::html("i7").contains(r#"data-tone="danger""#));
    }
}