---
import { compare, site } from "../data/site";

const keyFor: Record<string, "margin" | "vellum" | "atticus" | "lacuna"> = {
  Margin: "margin",
  Vellum: "vellum",
  Atticus: "atticus",
  Lacuna: "lacuna",
};

function cell(value: boolean | "partial") {
  if (value === true) return { cls: "yes", label: "Yes" };
  if (value === "partial") return { cls: "partial", label: "Varies" };
  return { cls: "no", label: "No" };
}
---

<section class="section compare" id="compare">
  <div class="container">
    <header class="block-head block-head--center">
      <p class="eyebrow">How Margin compares</p>
      <h2>A better way to make a book.</h2>
      <p class="lede">
        Atticus, Vellum, and Lacuna are capable tools. Here's where Margin is simply different:
        offline, on every platform, and yours from $0.
      </p>
    </header>

    <div class="table-wrap card">
      <table>
        <thead>
          <tr>
            <th class="th-feature"></th>
            {
              compare.cols.map((c) => (
                <th class:list={["th-col", { "th-col--us": c === "Margin" }]}>{c}</th>
              ))
            }
          </tr>
        </thead>
        <tbody>
          {
            compare.rows.map((row) => (
              <tr>
                <td class="td-feature">{row.feature}</td>
                {
                  compare.cols.map((c) => {
                    const v = row[keyFor[c]];
                    const m = cell(v);
                    const isUs = c === "Margin";
                    return (
                      <td class:list={["td-val", { "td-val--us": isUs }]}>
                        <span class:list={["mark", m.cls]} title={m.label}>
                          {m.cls === "yes" ? (
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M20 6 9 17l-5-5" /></svg>
                          ) : (
                            <span class="bar" aria-hidden="true"></span>
                          )}
                          <span class="sr">{m.label}</span>
                        </span>
                      </td>
                    );
                  })
                }
              </tr>
            ))
          }
        </tbody>
      </table>
    </div>
    <p class="compare__foot">
      Vellum is Mac-only. Lacuna runs on Mac and Windows. Atticus is cloud-based and asks you to
      sign in. {site.name} runs offline on all three platforms, with no account at all.
    </p>
  </div>
</section>

<style>
  .block-head--center {
    margin-inline: auto;
    text-align: center;
  }
  .block-head--center .lede {
    margin-inline: auto;
  }
  .table-wrap {
    overflow-x: auto;
    padding: 6px;
  }
  table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
  }
  th,
  td {
    padding: 15px 18px;
    text-align: center;
  }
  .th-feature,
  .td-feature {
    text-align: left;
    width: 42%;
  }
  thead th {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 680;
    color: var(--ink-soft);
    border-bottom: 1px solid var(--line);
    padding-top: 18px;
    padding-bottom: 18px;
  }
  .th-col--us {
    color: var(--ink);
    background: var(--accent-wash);
    border-radius: var(--r-md) var(--r-md) 0 0;
  }
  .td-feature {
    font-weight: 550;
    color: var(--ink);
    font-size: 0.95rem;
  }
  tbody tr + tr td {
    border-top: 1px solid var(--line);
  }
  .td-val--us {
    background: var(--accent-wash);
  }
  tbody tr:last-child .td-val--us {
    border-radius: 0 0 var(--r-md) var(--r-md);
  }
  .mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
  }
  .mark.yes {
    background: color-mix(in srgb, var(--good) 16%, transparent);
    color: var(--good);
  }
  .mark.yes svg {
    width: 15px;
    height: 15px;
  }
  .bar {
    width: 12px;
    height: 2px;
    border-radius: 2px;
    background: var(--line-strong);
  }
  .sr {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
  .compare__foot {
    margin-top: 18px;
    font-size: 0.82rem;
    color: var(--ink-faint);
    max-width: 70ch;
  }
</style>