1/*!
  2 * Module requirements.
  3 */
  4
  5var castArraysOfNumbers = require('./helpers').castArraysOfNumbers;
  6var castToNumber = require('./helpers').castToNumber;
  7
  8/*!
  9 * ignore
 10 */
 11
 12exports.cast$geoIntersects = cast$geoIntersects;
 13exports.cast$near = cast$near;
 14exports.cast$within = cast$within;
 15
 16function cast$near(val) {
 17  var SchemaArray = require('../array');
 18
 19  if (Array.isArray(val)) {
 20    castArraysOfNumbers(val, this);
 21    return val;
 22  }
 23
 24  _castMinMaxDistance(this, val);
 25
 26  if (val && val.$geometry) {
 27    return cast$geometry(val, this);
 28  }
 29
 30  return SchemaArray.prototype.castForQuery.call(this, val);
 31}
 32
 33function cast$geometry(val, self) {
 34  switch (val.$geometry.type) {
 35    case 'Polygon':
 36    case 'LineString':
 37    case 'Point':
 38      castArraysOfNumbers(val.$geometry.coordinates, self);
 39      break;
 40    default:
 41      // ignore unknowns
 42      break;
 43  }
 44
 45  _castMinMaxDistance(this, val);
 46
 47  return val;
 48}
 49
 50function cast$within(val) {
 51  _castMinMaxDistance(this, val);
 52
 53  if (val.$box || val.$polygon) {
 54    var type = val.$box ? '$box' : '$polygon';
 55    val[type].forEach(function(arr) {
 56      if (!Array.isArray(arr)) {
 57        var msg = 'Invalid $within $box argument. '
 58            + 'Expected an array, received ' + arr;
 59        throw new TypeError(msg);
 60      }
 61      arr.forEach(function(v, i) {
 62        arr[i] = castToNumber.call(this, v);
 63      });
 64    });
 65  } else if (val.$center || val.$centerSphere) {
 66    type = val.$center ? '$center' : '$centerSphere';
 67    val[type].forEach(function(item, i) {
 68      if (Array.isArray(item)) {
 69        item.forEach(function(v, j) {
 70          item[j] = castToNumber.call(this, v);
 71        });
 72      } else {
 73        val[type][i] = castToNumber.call(this, item);
 74      }
 75    });
 76  } else if (val.$geometry) {
 77    cast$geometry(val, this);
 78  }
 79
 80  return val;
 81}
 82
 83function cast$geoIntersects(val) {
 84  var geo = val.$geometry;
 85  if (!geo) {
 86    return;
 87  }
 88
 89  cast$geometry(val, this);
 90  return val;
 91}
 92
 93function _castMinMaxDistance(self, val) {
 94  if (val.$maxDistance) {
 95    val.$maxDistance = castToNumber.call(self, val.$maxDistance);
 96  }
 97  if (val.$minDistance) {
 98    val.$minDistance = castToNumber.call(self, val.$minDistance);
 99  }
100}