/** History requirement
- Document can have embedded sub-documents
- Document can have referenced documents
- Document can be referenced by documents

- On save:
  * copy current version
  *
*/
import { Schema, model } from 'mongoose'

const historySchema = new Schema({
  author: [Schema.Types.ObjectId],
  created: Date,
  tag: String,
  reference: [Schema.Types.ObjectId],
  head: Boolean
})

export const History = model('History', historySchema)

const basicSchema = {
  name: {
    type: String,
    maxlength: 20,
    required: true },
  tag: {
    type: String,
    maxlength: 10,
    required: true },
  description: {
    type: String,
    maxlength: 200 }
}

export const collection = {
  ...basicSchema,
  __history: [historySchema]
}