chatdocs/data/index.html

<title>ChatDocs</title>

<script>
  const auth = new URLSearchParams(window.location.search).get('auth');
  const ws = new WebSocket(`ws://${location.host}/ws`);

  ws.addEventListener('message', (event) => {
    data = JSON.parse(event.data);
    onReceive(data);
  });

  const send = (req) => {
    if (auth) {
      req['auth'] = auth;
    }
    req = JSON.stringify(req);
    ws.send(req);
  };

  const el = (tag) => document.createElement(tag);

  const onReceive = (res) => {
    const { id } = res;
    const answer = document.getElementById('answer-' + id);
    const sources = document.getElementById('sources-' + id);
    if (res.chunk) {
      answer.innerText += res.chunk;
    } else {
      answer.innerText = res.result;
      for (const { source, content } of res.sources) {
        const summary = el('summary');
        summary.innerText = source;

        const details = el('details');
        details.innerText = content;
        details.appendChild(summary);

        sources.appendChild(details);
      }
      form.reset();
      form.elements.submit.disabled = false;
      form.elements.query.disabled = false;
    }
    document.getElementById('end').scrollIntoView();
  };

  function onSubmit(event) {
    event.preventDefault();
    event.target.elements.submit.disabled = true;
    const query = new FormData(event.target).get('query');
    event.target.elements.query.disabled = true;
    event.target.elements.query.value = 'Processing your query. Please wait...';
    const id = 'mid-' + performance.now();
    const messages = document.getElementById('messages');

    const me = el('div');
    me.classList.add('message', 'message-me');
    messages.appendChild(me);

    const q = el('div');
    q.innerText = query;
    me.appendChild(q);

    const ai = el('div');
    ai.classList.add('message', 'message-ai');
    messages.appendChild(ai);

    const answer = el('div');
    answer.classList.add('answer');
    answer.setAttribute('id', 'answer-' + id);
    ai.appendChild(answer);

    const sources = el('div');
    sources.classList.add('sources');
    sources.setAttribute('id', 'sources-' + id);
    ai.appendChild(sources);

    document.getElementById('end').scrollIntoView();

    send({ id, query });
  }
</script>

<style>
  *,
  ::before,
  ::after {
    box-sizing: border-box;
  }

  html {
    line-height: 1.5;
  }

  body {
    margin: 0;
    font-family: system-ui, sans-serif;
  }

  button,
  input,
  optgroup,
  select,
  textarea {
    font-family: inherit;
    font-size: 100%;
    line-height: 1.5;
    margin: 0;
  }

  button,
  select {
    text-transform: none;
  }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    -webkit-clip-path: inset(50%);
    clip-path: inset(50%);
    border: 0;
  }

  body {
    background-color: #343541;
    color: #ececf1;
  }

  main {
    padding-bottom: 100px;
  }

  .message {
    padding: 1.5rem 0;
    line-height: 1.75;
    border-bottom: 1px solid rgba(32, 33, 35, 0.5);
  }

  .message br {
    line-height: 1;
  }

  .message > div {
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
  }

  .message-ai {
    background-color: #444654;
    color: #d1d5db;
  }

  .answer {
    margin-bottom: 1.25em;
  }

  .sources details {
    margin-bottom: 0.625em;
  }

  .sources summary {
    cursor: pointer;
    font-weight: 500;
    color: #fff;
  }

  footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    display: flex;
    align-items: center;
    background-image: linear-gradient(
      180deg,
      rgba(53, 55, 64, 0),
      #353740 58.85%
    );
  }

  footer form {
    flex-grow: 1;
    max-width: 48rem;
    margin: 0 auto;
  }

  footer input {
    width: 100%;
    padding: 1rem;
    background-color: #202123;
    color: #fff;
    border-radius: 0.75rem;
    border: 0;
    outline: 0;
  }
</style>

<main id="messages"></main>
<div id="end"></div>
<footer>
  <form id="form">
    <input
      type="text"
      name="query"
      required
      placeholder="Type your query and press Enter."
      autofocus
    />
    <button type="submit" name="submit" class="sr-only">Send</button>
  </form>
</footer>

<script>
  const form = document.getElementById('form');
  form.addEventListener('submit', onSubmit);
</script>