(function(undefined) {
	var root = this;

	// Weird IE shit, objects do not have hasOwn, but the prototype does...
	var hasOwnProp = Object.prototype.hasOwnProperty;

	// Object cloning function, uses jQuery/Underscore/Object.create depending on what's available

	var clone = function (object) {
		if (typeof Object.hasOwnProperty !== 'undefined') {
			var target = {};
			for (var i in object) {
				if (hasOwnProp.call(object, i)) {
					target[i] = object[i];
				}
			}
			return target;
		}
		if (typeof jQuery !== 'undefined') {
			return jQuery.extend({}, object);
		}
		if (typeof _ !== 'undefined') {
			return _.extend({}, object);
		}
	};

	var Dottie = function() {
		var args = Array.prototype.slice.call(arguments);

		if (args.length == 2) {
			return Dottie.find.apply(this, args);
		}
		return Dottie.transform.apply(this, args);
	};

	// Legacy syntax, changed syntax to have get/set be similar in arg order
	Dottie.find = function(path, object) {
		return Dottie.get(object, path);
	};

	// Dottie memoization flag
	Dottie.memoizePath = true;
	var memoized = {};

	// Traverse object according to path, return value if found - Return undefined if destination is unreachable
	Dottie.get = function(object, path, defaultVal) {
		if ((object === undefined) || (object === null)) return defaultVal;

		var names;

		if (typeof path === "string") {
			if (Dottie.memoizePath) {
				if (memoized[path]) {
					names = memoized[path].slice(0);
				} else {
					names = path.split('.').reverse();
					memoized[path] = names.slice(0);
				}
			} else {
				names = path.split('.').reverse();
			}
		} else if (Array.isArray(path)) {
			names = path.reverse();
		}

		while (names.length && (object = object[names.pop()]) !== undefined && object !== null);

		// Handle cases where accessing a childprop of a null value
		if (object === null && names.length) object = undefined;

		return (object === undefined ? defaultVal : object);
	};

	// Set nested value
	Dottie.set = function(object, path, value) {
		var pieces = Array.isArray(path) ? path : path.split('.'), current = object, piece, length = pieces.length;

		for (var index = 0; index < length; index++) {
			piece = pieces[index];
			if (!hasOwnProp.call(current, piece) || current[piece] === undefined) {
				current[piece] = {};
			}

			if (typeof current !== 'object') throw new Error('Target key is not suitable for a nested value (it is either not undefined or not an object)');

			if (index == (length - 1)) {
				current[piece] = value;
			} else {
				current = current[piece];
			}
		}

		current[piece] = value;
	};

	// Set default nested value
	Dottie['default'] = function(object, path, value) {
		if (Dottie.get(object, path) === undefined) {
			Dottie.set(object, path, value);
		}
	};

	// Transform unnested object with .-seperated keys into a nested object.
	Dottie.transform = function Dottie$transformfunction(object, options) {
		if (Array.isArray(object)) {
			return object.map(function(o) {
				return Dottie.transform(o, options);
			});
		}

		options = options || {};
		options.delimiter = options.delimiter || '.';

		var pieces,
			piecesLength,
			piece,
			current,
			transformed = {},
			key,
			keys = Object.keys(object),
			length = keys.length,
			i;

		for (i = 0; i < length; i++) {
			key = keys[i];

			if (key.indexOf(options.delimiter) !== -1) {
				pieces = key.split(options.delimiter);
				piecesLength = pieces.length;
				current = transformed;

				for (var index = 0; index < piecesLength; index++) {
					piece = pieces[index];
					if (index != (piecesLength - 1) && !current.hasOwnProperty(piece)) {
						current[piece] = {};
					}

					if (index == (piecesLength - 1)) {
						current[piece] = object[key];
					}

					current = current[piece];
					if (current === null) {
						break;
					}
				}
			} else {
				transformed[key] = object[key];
			}
		}

		return transformed;
	};

	Dottie.flatten = function(object, seperator) {
		if (typeof seperator === "undefined") seperator = '.';
		var flattened = {},
			current,
			nested;

		for (var key in object) {
			if (hasOwnProp.call(object, key)) {
				current = object[key];
				if (Object.prototype.toString.call(current) === "[object Object]") {
					nested = Dottie.flatten(current, seperator);

					for (var _key in nested) {
						flattened[key+seperator+_key] = nested[_key];
					}
				} else {
					flattened[key] = current;
				}
			}
		}

		return flattened;
	};

	if (typeof module !== 'undefined' && module.exports) {
		exports = module.exports = Dottie;
	} else {
		root['Dottie'] = Dottie;
		root['Dot'] = Dottie; //BC

		if (typeof define === "function") {
			define([], function () { return Dottie; });
		}
	}
})();
