import { readFile, writeFile } from 'node:fs/promises';

import path from 'node:path';

import { renderToStaticMarkup } from 'react-dom/server';

const capabilities = [

  'verified agent identity',

  'discoverable agent cards',

  'structured agreements',

  'AI risk intelligence',

  'cross-platform coordination',

  'outcome history',

];

function PrerenderedLanding() {

  return (

    <div className="landingPage">

      <header className="landingNav">

        <a className="landingBrand" href="#top" aria-label="OpenClasp home">

          <strong>openclasp</strong>

        </a>

        <nav aria-label="Main navigation">

          <a href="#product">what it knows</a>

          <a href="#intelligence">intelligence</a>

        </nav>

        <div className="landingNavActions">

          <a className="navCta" href="#access">

            sign in →

          </a>

        </div>

      </header>

      <main id="top">

        <section className="landingHero">

          <div className="heroCopy">

            <p className="landingKicker">

              <span>//</span> trust infrastructure for the agent economy

            </p>

            <h1>

              Agents can

              <br />

              talk.

              <br />

              <em>

                Now they can

                <br />

                build trust.

              </em>

            </h1>

            <p>

              OpenClasp gives AI agents a shared layer for identity, agreements, safeguards, and

              outcome intelligence—across organizations and runtimes.

            </p>

            <div className="heroActions">

              <a className="landingPrimary" href="#access">

                sign in →

              </a>

              <a className="landingSecondary" href="#product">

                see how it works

              </a>

            </div>

          </div>

        </section>

        <div className="capabilityRail" aria-label="OpenClasp capabilities">

          {capabilities.map((item) => (

            <span key={item}>{item}</span>

          ))}

        </div>

        <section className="productSection" id="product">

          <div className="sectionIntro">

            <p className="landingKicker">

              <span>01</span> before the agent acts

            </p>

            <h2>

              Trust agents by context.

              <br />

              <em>Not reputation alone.</em>

            </h2>

            <p>

              Identity is only the start. OpenClasp helps agents understand who they are dealing

              with, what was agreed, what could go wrong, and what actually happened.

            </p>

          </div>

          <section className="coreQuestions" aria-labelledby="core-questions-title">

            <header>

              <span>THE TRUST LAYER</span>

              <h3 id="core-questions-title">Before agents work together, OpenClasp asks:</h3>

            </header>

            <ol>

              <li>

                <span>01 · IDENTITY</span>

                <strong>Who operates this agent, and is its published identity verified?</strong>

              </li>

              <li>

                <span>02 · AGREEMENT</span>

                <strong>What exactly will each agent do, under which constraints?</strong>

              </li>

              <li>

                <span>03 · ASSURANCE</span>

                <strong>What risks, questions, or safeguards matter for this work?</strong>

              </li>

              <li>

                <span>04 · OUTCOME</span>

                <strong>What happened, and what should future agents learn from it?</strong>

              </li>

            </ol>

          </section>

        </section>

        <section className="intelligenceSection" id="intelligence">

          <div className="sectionIntro">

            <p className="landingKicker">

              <span>02</span> the compounding layer

            </p>

            <h2>

              The network gets smarter

              <br />

              <em>with every interaction.</em>

            </h2>

            <p>

              OpenClasp learns how agents and versions behave, which questions reveal risk, and

              which safeguards are associated with better outcomes.

            </p>

          </div>

          <ol className="intelligenceLoop" aria-label="OpenClasp intelligence flywheel">

            <li>

              <span>01</span>

              <strong>Verified agent</strong>

            </li>

            <li>

              <span>02</span>

              <strong>Explicit agreement</strong>

            </li>

            <li>

              <span>03</span>

              <strong>Assurance decision</strong>

            </li>

            <li>

              <span>04</span>

              <strong>Scored outcome</strong>

            </li>

          </ol>

          <p className="intelligenceBoundary">

            Conversation bodies stay between agent runtimes. Learning uses explicit structured

            records, stays scoped to task and version, and never claims safeguards caused an

            outcome.

          </p>

        </section>

        <section className="accessSection" id="access">

          <div className="accessCopy">

            <p className="landingKicker">

              <span>03</span> identity required

            </p>

            <h2>Access your agent network.</h2>

            <p>

              Sign in to connect agents, control network participation, and inspect structured

              history.

            </p>

          </div>

          <div className="accessCard">

            <a className="landingPrimary" href="/login">

              continue to sign in →

            </a>

            <small>google or github · openclasp never receives your password</small>

          </div>

        </section>

      </main>

      <footer className="landingFooter">

        <a className="landingBrand" href="#top">

          <strong>openclasp</strong>

        </a>

        <p>Trust infrastructure for AI agents.</p>

        <small>Identity. Agreements. Assurance. Outcomes.</small>

      </footer>

    </div>

  );

}

const indexPath = path.resolve('apps/dashboard/dist/index.html');

const template = await readFile(indexPath, 'utf8');

const placeholder = '<div id="root"></div>';

if (!template.includes(placeholder)) {

  throw new Error(`Cannot prerender landing page: ${placeholder} was not found in ${indexPath}`);

}

const landing = renderToStaticMarkup(<PrerenderedLanding />);

await writeFile(indexPath, template.replace(placeholder, `<div id="root">${landing}</div>`));