/* global Symbol */
// Defining this global in .eslintrc.json would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module

define([
  "./var/arr",
  "./var/document",
  "./var/getProto",
  "./var/slice",
  "./var/concat",
  "./var/push",
  "./var/indexOf",
  "./var/class2type",
  "./var/toString",
  "./var/hasOwn",
  "./var/fnToString",
  "./var/ObjectFunctionString",
  "./var/support",
  "./var/isFunction",
  "./var/isWindow",
  "./core/DOMEval",
  "./core/toType"
], function(arr, document, getProto, slice, concat, push, indexOf,
  class2type, toString, hasOwn, fnToString, ObjectFunctionString,
  support, isFunction, isWindow, DOMEval, toType) {

  "use strict";

  var
    version = "3.3.1",

    // Define a local copy of jQuery
    jQuery = function(selector, context) {

      // The jQuery object is actually just the init constructor 'enhanced'
      // Need init if jQuery is called (just allow error to be thrown if not included)
      return new jQuery.fn.init(selector, context);
    },

    // Support: Android <=4.0 only
    // Make sure we trim BOM and NBSP
    rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;

  jQuery.fn = jQuery.prototype = {

    // The current version of jQuery being used
    jquery: version,

    constructor: jQuery,

    // The default length of a jQuery object is 0
    length: 0,

    toArray: function() {
      return slice.call(this);
    },

    // Get the Nth element in the matched element set OR
    // Get the whole matched element set as a clean array
    get: function(num) {

      // Return all the elements in a clean array
      if (num == null) {
        return slice.call(this);
      }

      // Return just the one element from the set
      return num < 0 ? this[num + this.length] : this[num];
    },

    // Take an array of elements and push it onto the stack
    // (returning the new matched element set)
    pushStack: function(elems) {

      // Build a new jQuery matched element set
      var ret = jQuery.merge(this.constructor(), elems);

      // Add the old object onto the stack (as a reference)
      ret.prevObject = this;

      // Return the newly-formed element set
      return ret;
    },

    // Execute a callback for every element in the matched set.
    each: function(callback) {
      return jQuery.each(this, callback);
    },

    map: function(callback) {
      return this.pushStack(jQuery.map(this, function(elem, i) {
        return callback.call(elem, i, elem);
      }));
    },

    slice: function() {
      return this.pushStack(slice.apply(this, arguments));
    },

    first: function() {
      return this.eq(0);
    },

    last: function() {
      return this.eq(-1);
    },

    eq: function(i) {
      var len = this.length,
        j = +i + (i < 0 ? len : 0);
      return this.pushStack(j >= 0 && j < len ? [this[j]] : []);
    },

    end: function() {
      return this.prevObject || this.constructor();
    },

    // For internal use only.
    // Behaves like an Array's method, not like a jQuery method.
    push: push,
    sort: arr.sort,
    splice: arr.splice
  };

  jQuery.extend = jQuery.fn.extend = function() {
    var options, name, src, copy, copyIsArray, clone,
      target = arguments[0] || {},
      i = 1,
      length = arguments.length,
      deep = false;

    // Handle a deep copy situation
    if (typeof target === "boolean") {
      deep = target;

      // Skip the boolean and the target
      target = arguments[i] || {};
      i++;
    }

    // Handle case when target is a string or something (possible in deep copy)
    if (typeof target !== "object" && !isFunction(target)) {
      target = {};
    }

    // Extend jQuery itself if only one argument is passed
    if (i === length) {
      target = this;
      i--;
    }

    for (; i < length; i++) {

      // Only deal with non-null/undefined values
      if ((options = arguments[i]) != null) {

        // Extend the base object
        for (name in options) {
          src = target[name];
          copy = options[name];

          // Prevent never-ending loop
          if (target === copy) {
            continue;
          }

          // Recurse if we're merging plain objects or arrays
          if (deep && copy && (jQuery.isPlainObject(copy) ||
              (copyIsArray = Array.isArray(copy)))) {

            if (copyIsArray) {
              copyIsArray = false;
              clone = src && Array.isArray(src) ? src : [];

            } else {
              clone = src && jQuery.isPlainObject(src) ? src : {};
            }

            // Never move original objects, clone them
            target[name] = jQuery.extend(deep, clone, copy);

            // Don't bring in undefined values
          } else if (copy !== undefined) {
            target[name] = copy;
          }
        }
      }
    }

    // Return the modified object
    return target;
  };

  jQuery.extend({

    // Unique for each copy of jQuery on the page
    expando: "jQuery" + (version + Math.random()).replace(/\D/g, ""),

    // Assume jQuery is ready without the ready module
    isReady: true,

    error: function(msg) {
      throw new Error(msg);
    },

    noop: function() {},

    isPlainObject: function(obj) {
      var proto, Ctor;

      // Detect obvious negatives
      // Use toString instead of jQuery.type to catch host objects
      if (!obj || toString.call(obj) !== "[object Object]") {
        return false;
      }

      proto = getProto(obj);

      // Objects with no prototype (e.g., `Object.create( null )`) are plain
      if (!proto) {
        return true;
      }

      // Objects with prototype are plain iff they were constructed by a global Object function
      Ctor = hasOwn.call(proto, "constructor") && proto.constructor;
      return typeof Ctor === "function" && fnToString.call(Ctor) === ObjectFunctionString;
    },

    isEmptyObject: function(obj) {

      /* eslint-disable no-unused-vars */
      // See https://github.com/eslint/eslint/issues/6125
      var name;

      for (name in obj) {
        return false;
      }
      return true;
    },

    // Evaluates a script in a global context
    globalEval: function(code) {
      DOMEval(code);
    },

    each: function(obj, callback) {
      var length, i = 0;

      if (isArrayLike(obj)) {
        length = obj.length;
        for (; i < length; i++) {
          if (callback.call(obj[i], i, obj[i]) === false) {
            break;
          }
        }
      } else {
        for (i in obj) {
          if (callback.call(obj[i], i, obj[i]) === false) {
            break;
          }
        }
      }

      return obj;
    },

    // Support: Android <=4.0 only
    trim: function(text) {
      return text == null ?
        "" :
        (text + "").replace(rtrim, "");
    },

    // results is for internal usage only
    makeArray: function(arr, results) {
      var ret = results || [];

      if (arr != null) {
        if (isArrayLike(Object(arr))) {
          jQuery.merge(ret,
            typeof arr === "string" ? [arr] : arr
          );
        } else {
          push.call(ret, arr);
        }
      }

      return ret;
    },

    inArray: function(elem, arr, i) {
      return arr == null ? -1 : indexOf.call(arr, elem, i);
    },

    // Support: Android <=4.0 only, PhantomJS 1 only
    // push.apply(_, arraylike) throws on ancient WebKit
    merge: function(first, second) {
      var len = +second.length,
        j = 0,
        i = first.length;

      for (; j < len; j++) {
        first[i++] = second[j];
      }

      first.length = i;

      return first;
    },

    grep: function(elems, callback, invert) {
      var callbackInverse,
        matches = [],
        i = 0,
        length = elems.length,
        callbackExpect = !invert;

      // Go through the array, only saving the items
      // that pass the validator function
      for (; i < length; i++) {
        callbackInverse = !callback(elems[i], i);
        if (callbackInverse !== callbackExpect) {
          matches.push(elems[i]);
        }
      }

      return matches;
    },

    // arg is for internal usage only
    map: function(elems, callback, arg) {
      var length, value,
        i = 0,
        ret = [];

      // Go through the array, translating each of the items to their new values
      if (isArrayLike(elems)) {
        length = elems.length;
        for (; i < length; i++) {
          value = callback(elems[i], i, arg);

          if (value != null) {
            ret.push(value);
          }
        }

        // Go through every key on the object,
      } else {
        for (i in elems) {
          value = callback(elems[i], i, arg);

          if (value != null) {
            ret.push(value);
          }
        }
      }

      // Flatten any nested arrays
      return concat.apply([], ret);
    },

    // A global GUID counter for objects
    guid: 1,

    // jQuery.support is not used in Core but other projects attach their
    // properties to it so it needs to exist.
    support: support
  });

  if (typeof Symbol === "function") {
    jQuery.fn[Symbol.iterator] = arr[Symbol.iterator];
  }

  // Populate the class2type map
  jQuery.each("Boolean Number String Function Array Date RegExp Object Error Symbol".split(" "),
    function(i, name) {
      class2type["[object " + name + "]"] = name.toLowerCase();
    });

  function isArrayLike(obj) {

    // Support: real iOS 8.2 only (not reproducible in simulator)
    // `in` check used to prevent JIT error (gh-2145)
    // hasOwn isn't used here due to false negatives
    // regarding Nodelist length in IE
    var length = !!obj && "length" in obj && obj.length,
      type = toType(obj);

    if (isFunction(obj) || isWindow(obj)) {
      return false;
    }

    return type === "array" || length === 0 ||
      typeof length === "number" && length > 0 && (length - 1) in obj;
  }

  return jQuery;
});