feat: Add various content types to docusaurus (#7231)

This brings blog posts, showcase posts, and newsletter editions into the Docusaurus site.

It also adds support for using TailwindCSS inside a container. So this will probably end up being the new freesewing.org site in v4.

sites/orgdocs/scripts/prebuild-step3.mjs

@@ -0,0 +1,76 @@
+import fs from 'fs'
+import { glob } from 'glob'
+import matter from 'gray-matter'
+
+const loadTagsAndAuthors = async () => {
+  const lists = {
+    blog: await glob('./blog/*/index.mdx'),
+    newsletter: await glob('./newsletter/*/index.mdx'),
+    showcase: await glob('./showcase/*/index.mdx'),
+  }
+
+  const tags = []
+  const authors = []
+  for (const type of Object.keys(lists)) {
+    for (const file of lists[type]) {
+      const content = await fs.readFileSync(file, 'utf-8')
+      const data = matter(content)
+      if (data.data.tags) {
+        if (Array.isArray(data.data.tags)) tags.push(...data.data.tags)
+        else tags.push(data.data.tags)
+      } else if (type === 'showcase')
+        console.log('Missing design tag in showcase post:', { file, data: data.data })
+      if (data.data.authors) {
+        if (Array.isArray(data.data.authors)) authors.push(...data.data.authors)
+        else authors.push(data.data.authors)
+      } else if (type === 'showcase') console.warn('Missing authors in showcase post:', file)
+      else if (type === 'blog') console.warn('Missing authors in blog post:', file)
+      else if (type === 'newsletter') console.warn('Missing authors in newsletter edition:', file)
+    }
+  }
+
+  return {
+    authors: [...new Set(authors.sort())], // Make them unique
+    tags: [...new Set(tags.sort())], // Make them unique
+  }
+}
+
+const titles = {
+  admin: 'FreeSewing Maintainer',
+  user: 'FreeSewing User',
+}
+
+const userAsAuthor = (user) => ({
+  name: user.profile.username,
+  title: titles[user.profile.role],
+  url: `https://freesewing.org/users/user?id=${user.profile.id}`,
+  image_url: `https://imagedelivery.net/ouSuR9yY1bHt-fuAokSA5Q/uid-${user.profile.ihash}/public`,
+  bio: user.profile.bio,
+})
+
+const loadUser = async (id) => {
+  let result
+  try {
+    result = await fetch(`https://backend3.freesewing.org/users/${id}`)
+  } catch (err) {
+    console.warn(`Failed to load user with id ${id}`, err)
+  }
+
+  if (result) return await result.json()
+}
+
+async function prebuild() {
+  const all = {}
+  const { authors, tags } = await loadTagsAndAuthors()
+  for (const author of authors) {
+    const user = await loadUser(author)
+    if (user.profile.id) all[user.profile.id] = userAsAuthor(user)
+  }
+  fs.writeFileSync(`./authors.json`, JSON.stringify(all, null, 2))
+  fs.writeFileSync(
+    `./showcase-tags.mjs`,
+    `export const tags = ${JSON.stringify([...new Set(tags.sort())])}`
+  )
+}
+
+prebuild()