package com.bookshop.behavioral.templatemethod;

import com.bookshop.domain.Book;
import java.math.BigDecimal;

/**
 * HTML variant: different formatting, identical structure and totalling logic.
 *
 * <p>Deliberately simplified: real HTML output must escape {@code < > &} in field
 * values -- use a templating library for that. The lesson here is the Template Method
 * shape, not HTML generation.
 */
public class HtmlSalesReport extends SalesReport {

    @Override
    protected String header() {
        return "<table><tr><th>Title</th><th>Price</th></tr>";
    }

    @Override
    protected String line(Book sale) {
        return "<tr><td>" + sale.title() + "</td><td>" + sale.price() + "</td></tr>";
    }

    @Override
    protected String footer(BigDecimal total) {
        return "<tr><td>Total</td><td>" + total + "</td></tr></table>";
    }
}