New model update details, author and series inputs with create new, compare & copy utils

server/objects/entities/Book.js

@@ -1,6 +1,8 @@
+const Logger = require('../../Logger')
 const BookMetadata = require('../metadata/BookMetadata')
 const AudioFile = require('../files/AudioFile')
 const EBookFile = require('../files/EBookFile')
+const { areEquivalent, copyValue } = require('../../utils/index')
 
 class Book {
   constructor(book) {
@@ -78,5 +80,24 @@ class Book {
     this.audioFiles.forEach((af) => total += af.metadata.size)
     return total
   }
+
+  update(payload) {
+    var json = this.toJSON()
+    var hasUpdates = false
+    for (const key in json) {
+      if (payload[key] !== undefined) {
+        if (key === 'metadata') {
+          if (this.metadata.update(payload.metadata)) {
+            hasUpdates = true
+          }
+        } else if (!areEquivalent(payload[key], json[key])) {
+          this[key] = copyValue(payload[key])
+          Logger.debug('[Book] Key updated', key, this[key])
+          hasUpdates = true
+        }
+      }
+    }
+    return hasUpdates
+  }
 }
 module.exports = Book