Clean and parse author name from directory, sort by author last name, scan for covers

server/utils/parseAuthors.js

@@ -0,0 +1,67 @@
+const parseFullName = require('./parseFullName')
+
+function parseName(name) {
+  var parts = parseFullName(name)
+  var firstName = parts.first
+  if (firstName && parts.middle) firstName += ' ' + parts.middle
+
+  return {
+    first_name: firstName,
+    last_name: parts.last
+  }
+}
+
+// Check if this name segment is of the format "Last, First" or "First Last"
+// return true is "Last, First"
+function checkIsALastName(name) {
+  if (!name.includes(' ')) return true // No spaces must be a Last name
+
+  var parsed = parseFullName(name)
+  if (!parsed.first) return true // had spaces but not a first name i.e. "von Mises", must be last name only
+
+  return false
+}
+
+module.exports = (author) => {
+  if (!author) return null
+  var splitByComma = author.split(', ')
+
+  var authors = []
+
+  // 1 author FIRST LAST
+  if (splitByComma.length === 1) {
+    authors.push(parseName(author))
+  } else {
+    var firstChunkIsALastName = checkIsALastName(splitByComma[0])
+    var isEvenNum = splitByComma.length % 2 === 0
+
+    if (!isEvenNum && firstChunkIsALastName) {
+      // console.error('Multi-author LAST,FIRST entry has a straggler (could be roman numerals or a suffix), ignore it', splitByComma[splitByComma.length - 1])
+      splitByComma = splitByComma.slice(0, splitByComma.length - 1)
+    }
+
+    if (firstChunkIsALastName) {
+      var numAuthors = splitByComma.length / 2
+      for (let i = 0; i < numAuthors; i++) {
+        var last = splitByComma.shift()
+        var first = splitByComma.shift()
+        authors.push({
+          first_name: first,
+          last_name: last
+        })
+      }
+    } else {
+      splitByComma.forEach((segment) => {
+        authors.push(parseName(segment))
+      })
+    }
+  }
+
+  var firstLast = authors.length ? authors.map(a => a.first_name ? `${a.first_name} ${a.last_name}` : a.last_name).join(', ') : ''
+  var lastFirst = authors.length ? authors.map(a => a.first_name ? `${a.last_name}, ${a.first_name}` : a.last_name).join(', ') : ''
+  return {
+    authorFL: firstLast,
+    authorLF: lastFirst,
+    authorsParsed: authors
+  }
+}