winnow/lib/normalize-query-options/index.js

Apply sql-like filters to GeoJSON

const _ = require('lodash')
const normalizeWhere = require('./where')
const normalizeFields = require('./fields')
const normalizeOrder = require('./order')
const normalizeAggregates = require('./aggregates')
const normalizeGroupBy = require('./group-by')
const normalizeClassification = require('./classification')
const normalizeCollection = require('./collection')
const deriveDateFields = require('./date-fields')
const normalizeSpatialPredicate = require('./spatial-predicate')
const normalizeOutputDataSpatialReference = require('./output-data-spatial-reference')
const normalizeSourceDataSpatialReference = require('./source-data-spatial-reference')
const normalizeGeometryFilter = require('./geometry-filter')
const normalizeIdField = require('./id-field')
const normalizeLimit = require('./limit')
const normalizeOffset = require('./offset')

function normalizeQueryOptions (options, features) {
  const {
    where,
    collection
  } = options

  const normalizedOptions = _.merge({}, options, {
    collection: normalizeCollection(collection, features),
    idField: normalizeIdField(options, features),
    where: normalizeWhere(where),
    geometry: normalizeGeometryFilter(options),
    spatialPredicate: normalizeSpatialPredicate(options),
    fields: normalizeFields(options),
    order: normalizeOrder(options),
    aggregates: normalizeAggregates(options),
    groupBy: normalizeGroupBy(options),
    limit: normalizeLimit(options),
    outputCrs: normalizeOutputDataSpatialReference(options),
    inputCrs: normalizeSourceDataSpatialReference(options),
    classification: normalizeClassification(options)
  })
  normalizedOptions.offset = normalizeOffset(normalizedOptions)
  normalizedOptions.dateFields = deriveDateFields(normalizedOptions.collection, normalizedOptions.fields)

  return normalizedOptions
}

module.exports = normalizeQueryOptions