/**
 * Date / time formats often from back from server APIs in a format that you
 * don't wish to display to your end users (ISO8601 for example). This rendering
 * helper can be used to transform any source date / time format into something
 * which can be easily understood by your users when reading the table, and also
 * by DataTables for sorting the table.
 *
 * The [MomentJS library](http://momentjs.com/) is used to accomplish this and
 * you simply need to tell it which format to transfer from, to and specify a
 * locale if required.
 *
 * This function should be used with the `dt-init columns.render` configuration
 * option of DataTables.
 *
 * It accepts one, two or three parameters:
 *
 * * `$.fn.dataTable.render.moment( to );`
 * * `$.fn.dataTable.render.moment( from, to );`
 * * `$.fn.dataTable.render.moment( from, to, locale );`
 *
 * Where:
 *
 * * `to` - the format that will be displayed to the end user
 * * `from` - the format that is supplied in the data (the default is ISO8601 -
 *   `YYYY-MM-DD`)
 * * `locale` - the locale which MomentJS should use - the default is `en`
 *   (English).
 *
 *  @name datetime
 *  @summary Convert date / time source data into one suitable for display
 *  @author [Allan Jardine](http://datatables.net)
 *  @requires DataTables 1.10+, Moment.js 1.7+
 *
 *  @example
 *    // Convert ISO8601 dates into a simple human readable format
 *    $('#example').DataTable( {
 *      columnDefs: [ {
 *        targets: 1,
 *        render: $.fn.dataTable.render.moment( 'Do MMM YYYY' )
 *      } ]
 *    } );
 *
 *  @example
 *    // Specify a source format - in this case a unix timestamp
 *    $('#example').DataTable( {
 *      columnDefs: [ {
 *        targets: 2,
 *        render: $.fn.dataTable.render.moment( 'X', 'Do MMM YY' )
 *      } ]
 *    } );
 *
 *  @example
 *    // Specify a source format and locale
 *    $('#example').DataTable( {
 *      columnDefs: [ {
 *        targets: 2,
 *        render: $.fn.dataTable.render.moment( 'YYYY/MM/DD', 'Do MMM YY', 'fr' )
 *      } ]
 *    } );
 */


// UMD
(function( factory ) {
	"use strict";

	if ( typeof define === 'function' && define.amd ) {
		// AMD
		define( ['jquery'], function ( $ ) {
			return factory( $, window, document );
		} );
	}
	else if ( typeof exports === 'object' ) {
		// CommonJS
		module.exports = function (root, $) {
			if ( ! root ) {
				root = window;
			}

			if ( ! $ ) {
				$ = typeof window !== 'undefined' ?
					require('jquery') :
					require('jquery')( root );
			}

			return factory( $, root, root.document );
		};
	}
	else {
		// Browser
		factory( jQuery, window, document );
	}
}
(function( $, window, document ) {


$.fn.dataTable.render.moment = function ( from, to, locale ) {
	// Argument shifting
	if ( arguments.length === 1 ) {
		locale = 'en';
		to = from;
		from = 'YYYY-MM-DD';
	}
	else if ( arguments.length === 2 ) {
		locale = 'en';
	}

	return function ( d, type, row ) {
		if (! d) {
			return type === 'sort' || type === 'type' ? 0 : d;
		}

		var m = window.moment( d, from, locale, true );

		// Order and type get a number value from Moment, everything else
		// sees the rendered value
		if (m.isValid()) {
		    return m.format( type === 'sort' || type === 'type' ? 'x' : to );
		} else {
			return type === 'sort' || type === 'type' ? 0 : d;
		}
	};
};


}));
