1/*!
 2 * Module dependencies.
 3 */
 4
 5var SchemaType = require('../schematype');
 6
 7/**
 8 * Boolean SchemaType constructor.
 9 *
10 * @param {String} path
11 * @param {Object} options
12 * @inherits SchemaType
13 * @api private
14 */
15
16function SchemaBoolean (path, options) {
17  SchemaType.call(this, path, options);
18};
19
20/*!
21 * Inherits from SchemaType.
22 */
23SchemaBoolean.prototype.__proto__ = SchemaType.prototype;
24
25/**
26 * Required validator
27 *
28 * @api private
29 */
30
31SchemaBoolean.prototype.checkRequired = function (value) {
32  return value === true || value === false;
33};
34
35/**
36 * Casts to boolean
37 *
38 * @param {Object} value
39 * @api private
40 */
41
42SchemaBoolean.prototype.cast = function (value) {
43  if (null === value) return value;
44  if ('0' === value) return false;
45  if ('true' === value) return true;
46  if ('false' === value) return false;
47  return !! value;
48}
49
50/*!
51 * ignore
52 */
53
54function handleArray (val) {
55  var self = this;
56  return val.map(function (m) {
57    return self.cast(m);
58  });
59}
60
61SchemaBoolean.$conditionalHandlers = {
62    '$in': handleArray
63}
64
65/**
66 * Casts contents for queries.
67 *
68 * @param {String} $conditional
69 * @param {any} val
70 * @api private
71 */
72
73SchemaBoolean.prototype.castForQuery = function ($conditional, val) {
74  var handler;
75  if (2 === arguments.length) {
76    handler = SchemaBoolean.$conditionalHandlers[$conditional];
77
78    if (handler) {
79      return handler.call(this, val);
80    }
81
82    return this.cast(val);
83  }
84
85  return this.cast($conditional);
86};
87
88/*!
89 * Module exports.
90 */
91
92module.exports = SchemaBoolean;