/// <reference path="../pb_data/types.d.ts" />
migrate((app) => {
  const collection = app.findCollectionByNameOrId("pbc_3945946014")

  // add field
  collection.fields.addAt(1, new Field({
    "autogeneratePattern": "",
    "hidden": false,
    "id": "text2560465762",
    "max": 0,
    "min": 0,
    "name": "slug",
    "pattern": "",
    "presentable": false,
    "primaryKey": false,
    "required": false,
    "system": false,
    "type": "text"
  }))

  // add field
  collection.fields.addAt(2, new Field({
    "autogeneratePattern": "",
    "hidden": false,
    "id": "text724990059",
    "max": 0,
    "min": 0,
    "name": "title",
    "pattern": "",
    "presentable": false,
    "primaryKey": false,
    "required": false,
    "system": false,
    "type": "text"
  }))

  // add field
  collection.fields.addAt(3, new Field({
    "autogeneratePattern": "",
    "hidden": false,
    "id": "text3295727154",
    "max": 0,
    "min": 0,
    "name": "meta_title",
    "pattern": "",
    "presentable": false,
    "primaryKey": false,
    "required": false,
    "system": false,
    "type": "text"
  }))

  // add field
  collection.fields.addAt(4, new Field({
    "autogeneratePattern": "",
    "hidden": false,
    "id": "text3307435217",
    "max": 0,
    "min": 0,
    "name": "meta_description",
    "pattern": "",
    "presentable": false,
    "primaryKey": false,
    "required": false,
    "system": false,
    "type": "text"
  }))

  return app.save(collection)
}, (app) => {
  const collection = app.findCollectionByNameOrId("pbc_3945946014")

  // remove field
  collection.fields.removeById("text2560465762")

  // remove field
  collection.fields.removeById("text724990059")

  // remove field
  collection.fields.removeById("text3295727154")

  // remove field
  collection.fields.removeById("text3307435217")

  return app.save(collection)
})