(() => {
  let metadataStore;

  function createPropsTable(props) {
    const table = document.createElement('table');
    table.innerHTML = `
      <thead>
        <tr>
          <th>Property</th>
          <th>Attribute</th>
          <th>Description</th>
          <th>Type</th>
          <th>Default</th>
        </tr>
      </thead>
      <tbody>
        ${props
          .map(
            prop => `
        <tr>
          <td><code>${escapeHtml(prop.name)}</code></td>
          <td><code style="white-space: nowrap;">${escapeHtml(prop.attr)}</code></td>
          <td>${escapeHtml(prop.docs)}</td>
          <td><code>${escapeHtml(prop.type)}</code></td>
          <td><code>${escapeHtml(prop.default)}</code></td>
        </tr>
        `
          )
          .join('')}
      </tbody>
    `;

    return table.outerHTML;
  }

  function createEventsTable(events) {
    const table = document.createElement('table');
    table.innerHTML = `
      <thead>
        <tr>
          <th>Event</th>
          <th>Description</th>
          <th>Type</th>
        </tr>
      </thead>
      <tbody>
        ${events
          .map(
            event => `
        <tr>
          <td><code>${escapeHtml(event.event)}</code></td>
          <td>${escapeHtml(event.docs)}</td>
          <td><code>CustomEvent&lt;${escapeHtml(event.detail)}&gt;</code></td>
        </tr>
        `
          )
          .join('')}
      </tbody>
    `;

    return table.outerHTML;
  }

  function createMethodsTable(methods) {
    const table = document.createElement('table');
    table.innerHTML = `
      <thead>
        <tr>
          <th>Method</th>
          <th>Description</th>
          <th>Returns</th>
        </tr>
      </thead>
      <tbody>
        ${methods
          .map(
            method => `
        <tr>
          <td><code>${escapeHtml(method.name)}</code></td>
          <td>${escapeHtml(method.docs)}</td>
          <td><code>${escapeHtml(method.returns.type)}</code></td>
        </tr>
        `
          )
          .join('')}
      </tbody>
    `;

    return table.outerHTML;
  }

  function createSlotsTable(slots) {
    const table = document.createElement('table');
    table.innerHTML = `
      <thead>
        <tr>
          <th>Slot</th>
          <th>Description</th>
        </tr>
      </thead>
      <tbody>
        ${slots
          .map(
            slot => `
        <tr>
          <td><code>${slot.name ? escapeHtml(slot.name) : '(default)'}</code></td>
          <td>${escapeHtml(slot.docs)}</td>
        </tr>
        `
          )
          .join('')}
      </tbody>
    `;

    return table.outerHTML;
  }

  function createCustomPropertiesTable(styles) {
    const table = document.createElement('table');
    table.innerHTML = `
      <thead>
        <tr>
          <th>Name</th>
          <th>Description</th>
        </tr>
      </thead>
      <tbody>
        ${styles
          .map(
            style => `
        <tr>
          <td><code style="white-space: nowrap;">${escapeHtml(style.name)}</code></td>
          <td>${escapeHtml(style.docs)}</td>
        </tr>
        `
          )
          .join('')}
      </tbody>
    `;

    return table.outerHTML;
  }

  function createPartsTable(parts) {
    const table = document.createElement('table');
    table.innerHTML = `
      <thead>
        <tr>
          <th>Name</th>
          <th>Description</th>
        </tr>
      </thead>
      <tbody>
        ${parts
          .map(
            part => `
        <tr>
          <td><code>${escapeHtml(part.name)}</code></td>
          <td>${escapeHtml(part.docs)}</td>
        </tr>
        `
          )
          .join('')}
      </tbody>
    `;

    return table.outerHTML;
  }

  function createDependentsList(dependents) {
    const ul = document.createElement('ul');
    ul.innerHTML = `
        ${dependents
          .map(
            dependent => `
              <li><code>${escapeHtml(dependent)}</code></li>
            `
          )
          .join('')}
    `;

    return ul.outerHTML;
  }

  function escapeHtml(html) {
    return (html + '')
      .replace(/&/g, '&amp;')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
      .replace(/"/g, '&quot;')
      .replace(/'/g, '&apos;')
      .replace(/`(.*?)`/g, '<code>$1</code>');
  }

  function getMetadata() {
    return new Promise((resolve, reject) => {
      // Simple caching to prevent multiple XHR requests
      if (metadataStore) {
        return resolve(metadataStore);
      }

      fetch('/dist/components.json')
        .then(res => res.json())
        .then(data => {
          metadataStore = data;
          resolve(metadataStore);
        })
        .catch(err => console.error(err));
    });
  }

  function getDocsTagsObject(docsTags) {
    let tags = {};

    for (const tag of docsTags) {
      tags[tag.name] = tag.text;
    }

    return tags;
  }

  if (!window.$docsify) {
    throw new Error('Docsify must be loaded before installing this plugin.');
  }

  window.$docsify.plugins.push((hook, vm) => {
    hook.mounted(function () {
      getMetadata().then(metadata => {
        const target = document.querySelector('.app-name');

        // Add version
        const version = document.createElement('div');
        version.classList.add('sidebar-version');
        version.textContent = metadata.version;
        target.appendChild(version);

        // Add repo buttons
        const buttons = document.createElement('div');
        buttons.classList.add('sidebar-buttons');
        buttons.innerHTML = `
          <a class="repo-button repo-button--small repo-button--sponsor" href="https://github.com/sponsors/claviska" rel="noopener" target="_blank">
            <sl-icon name="heart"></sl-icon> Sponsor
          </a>
          <a class="repo-button repo-button--small repo-button--github" href="https://github.com/shoelace-style/shoelace/stargazers" rel="noopener" target="_blank">
            <sl-icon src="/assets/images/github.svg"></sl-icon> Star
          </a>
          <a class="repo-button repo-button--small repo-button--twitter" href="https://twitter.com/shoelace_style" rel="noopener" target="_blank">
            <sl-icon src="/assets/images/twitter.svg"></sl-icon> Follow
          </a>
        `;
        target.appendChild(buttons);
      });
    });

    hook.beforeEach(async function (content, next) {
      const metadata = await getMetadata();

      // Replace %VERSION% placeholders
      content = content.replace(/%VERSION%/g, metadata.version);

      // Handle [component-header] tags
      content = content.replace(/\[component-header:([a-z-]+)\]/g, (match, tag) => {
        const data = metadata.components.filter(data => data.tag === tag)[0];
        let result = '';

        if (!data) {
          console.error('Component not found in metadata: ' + tag);
          next(content);
        }

        const tags = getDocsTagsObject(data.docsTags);

        if (tags && tags.status) {
          let badgeType = 'info';
          if (tags.status === 'stable') badgeType = 'primary';
          if (tags.status === 'experimental') badgeType = 'warning';
          if (tags.status === 'planned') badgeType = 'info';
          if (tags.status === 'deprecated') badgeType = 'danger';

          result += `
            <div class="component-header">
              <div class="component-header__tag">
                <code>&lt;${tag}&gt;</code>
              </div>

              <div class="component-header__info">
                <sl-badge type="info">
                  Since ${tags.since || '?'}
                </sl-badge>

                <sl-badge type="${badgeType}" style="text-transform: capitalize;">
                  ${tags.status}
                </sl-badge>
              </div>
            </div>
          `;
        }

        return result.replace(/^ +| +$/gm, '');
      });

      // Handle [component-metadata] tags
      content = content.replace(/\[component-metadata:([a-z-]+)\]/g, (match, tag) => {
        const data = metadata.components.filter(data => data.tag === tag)[0];
        let result = '';

        if (!data) {
          console.error('Component not found in metadata: ' + tag);
          next(content);
        }

        if (data.props.length) {
          result += `
            ## Properties
            ${createPropsTable(data.props)}
          `;
        }

        if (data.events.length) {
          result += `
            ## Events
            ${createEventsTable(data.events)}
          `;
        }

        if (data.methods.length) {
          result += `
            ## Methods
            ${createMethodsTable(data.methods)}
          `;
        }

        if (data.slots.length) {
          result += `
            ## Slots
            ${createSlotsTable(data.slots)}
          `;
        }

        if (data.styles.length) {
          result += `
            ## CSS Custom Properties
            ${createCustomPropertiesTable(data.styles)}
          `;
        }

        if (data.parts.length) {
          result += `
            ## CSS Parts
            ${createPartsTable(data.parts)}
          `;
        }

        if (data.dependents.length) {
          result += `
            ## Dependents

            The following components make use of this component.

            ${createDependentsList(data.dependents)}
          `;
        }

        // Strip whitespace so markdown doesn't process things as code blocks
        return result.replace(/^ +| +$/gm, '');
      });

      next(content);
    });
  });
})();