Add gutenberg utility functions

src/lib/gutenberg.js

@@ -0,0 +1,23 @@
+import Axios from 'axios'
+
+export async function search(searchTerm, maxResults = Infinity) {
+  const regex = new RegExp(searchTerm, 'i')
+  const result = []
+  const data = await import('../../data/gutenberg.json').then(
+    module => module.default
+  )
+  for (let entry of data) {
+    if (regex.test(entry.title[0]) || regex.test(entry.author[0])) {
+      result.push(entry)
+    }
+
+    if (result.length >= maxResults) break
+  }
+  return result
+}
+
+export async function getBook(bookId) {
+  const url = `https://gutenberg.muperfredi.de/texts/${bookId}/stripped-body`
+  const text = await Axios.get(url).then(res => res.data.body)
+  return text
+}