overleaf/services/docstore/app/js/RangeManager.js
Jakob Ackermann df0747ec48 [misc] migrate the app to the native mongo driver
acceptance tests to follow in a separate commit
2020-08-25 09:40:59 +01:00

69 lines
2 KiB
JavaScript

/* eslint-disable
camelcase,
no-return-assign,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
* decaffeinate suggestions:
* DS101: Remove unnecessary use of Array.from
* DS102: Remove unnecessary code created because of implicit returns
* DS207: Consider shorter variations of null checks
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
let RangeManager
const _ = require('underscore')
const { ObjectId } = require('./mongodb')
module.exports = RangeManager = {
shouldUpdateRanges(doc_ranges, incoming_ranges) {
if (incoming_ranges == null) {
throw new Error('expected incoming_ranges')
}
// If the ranges are empty, we don't store them in the DB, so set
// doc_ranges to an empty object as default, since this is was the
// incoming_ranges will be for an empty range set.
if (doc_ranges == null) {
doc_ranges = {}
}
return !_.isEqual(doc_ranges, incoming_ranges)
},
jsonRangesToMongo(ranges) {
if (ranges == null) {
return null
}
const updateMetadata = function (metadata) {
if ((metadata != null ? metadata.ts : undefined) != null) {
metadata.ts = new Date(metadata.ts)
}
if ((metadata != null ? metadata.user_id : undefined) != null) {
return (metadata.user_id = RangeManager._safeObjectId(metadata.user_id))
}
}
for (const change of Array.from(ranges.changes || [])) {
change.id = RangeManager._safeObjectId(change.id)
updateMetadata(change.metadata)
}
for (const comment of Array.from(ranges.comments || [])) {
comment.id = RangeManager._safeObjectId(comment.id)
if ((comment.op != null ? comment.op.t : undefined) != null) {
comment.op.t = RangeManager._safeObjectId(comment.op.t)
}
updateMetadata(comment.metadata)
}
return ranges
},
_safeObjectId(data) {
try {
return ObjectId(data)
} catch (error) {
return data
}
}
}