import { useState } from "react";
import { Card, CardGrid } from "./Card";
import { Button, Checkbox, Counter, SectionHeading } from "./primitives";

export function ContainerShowcase() {
  const [water, setWater] = useState(3);
  const [read, setRead] = useState(false);

  return (
    <section className="ds-section ds-container-showcase" id="containers" aria-labelledby="containers-title">
      <SectionHeading id="containers-title" title="Containers & layout" />

      <div className="ds-spec-heading ds-spec-heading--spaced">
        <h3>Card surfaces</h3>
        <span className="ds-code">Card · soft / outlined</span>
      </div>
      <CardGrid>
        <Card headingLevel={4} heading="Soft surface">
          <p>A neutral fill gathers related content without adding another divider. Use it for summaries, guidance, and a small set of actions.</p>
        </Card>
        <Card headingLevel={4} variant="outlined" heading="Outlined surface">
          <p>A fine border defines a standalone group on white. Useful when a form or a focused task needs its own space.</p>
        </Card>
      </CardGrid>

      <div className="ds-spec-heading ds-spec-heading--spaced">
        <h3>Bento layout</h3>
        <span className="ds-code">CardGrid · bento</span>
      </div>
      <CardGrid layout="bento" aria-label="Interactive bento layout example">
        <Card
          headingLevel={4}
          span="featured"
          heading="Today"
        >
          <div className="ds-card-summary" role="status">
            <p className="type-display">{Number(water === 8) + Number(read)}<span className="type-title ds-muted"> / 2</span></p>
            <p>habits complete</p>
          </div>
        </Card>
        <Card headingLevel={4} eyebrow="DAILY / 8 GLASSES" heading="Drink water" variant="outlined">
          <Counter label="bento glasses of water" value={water} target={8} onChange={setWater} />
          <p className="type-small" role="status">{water === 8 ? "Complete for today" : `${8 - water} glasses to go`}</p>
        </Card>
        <Card headingLevel={4} heading="Read a little" variant="outlined">
          <Checkbox label="Reading done" checked={read} onChange={(event) => setRead(event.target.checked)} />
        </Card>
        <Card headingLevel={4} span="wide" heading="Demo">
          <p>Changes to these examples are not saved.</p>
        </Card>
      </CardGrid>
      <div className="ds-container-guidance">
        <p className="ds-footnote">Equal grids suit peer items. Bento gives one summary more room; smaller cards hold short tasks. Both collapse in reading order on small screens. Use one surface per group, with spacing inside and no shadows.</p>
        <Button variant="text" onClick={() => { setWater(3); setRead(false); }}>Reset card examples ↺</Button>
      </div>
      <pre className="ds-code ds-container-code"><code>{'<CardGrid layout="bento">\n  <Card heading="Today" headingLevel={4} span="featured">…</Card>\n  <Card heading="Water" headingLevel={4} variant="outlined">…</Card>\n  <Card heading="Reading" headingLevel={4} variant="outlined">…</Card>\n  <Card heading="A reminder" headingLevel={4} span="wide">…</Card>\n</CardGrid>'}</code></pre>
    </section>
  );
}