aitter_rakuten.js

(function(){
  var total = 0;
  var year = '2012';
  function init(num) {
		num = (typeof num !== 'number' ? 0 : num);
		if(num === 0) {
			$('<div/>').css({
				position: 'fixed',
				left: 0,
				top: 0,
				width: '100%',
				height: '100%',
				zIndex: 1000,
				backgroundColor: 'rgba(0,0,0,.7)',
				color: '#fff',
				fontSize: 30,
				textAlign: 'center',
				paddingTop: '15em'
			}).attr('id', '___overlay').text('楽天市場いくら使った？').appendTo('body');
			year = window.prompt('何年分の注文を集計しますか？\n半角数字4桁で入力してください', '2012');
			if(!/^[0-9]+$/.test(year)) {
				alert('正しい数値を入力してください');
				$('#___overlay').remove();
				return false;
			}
		}
		var progress = load(num+1);
		$('#___overlay').text('集計中…  / '+(num+1)+'ページ目');
		progress.done(function(price){
			total += price;
			init(num+1);
		}).fail(function(){
			alert('あなたは'+year+'年、合計'+ addFigure(total) + '円分の買い物を楽天市場でしました！');
			$('#___overlay').remove();
		});
	}
 
	function load(num) {
		var df = $.Deferred();
		var page = get(num);
		page.done(function(data){
			var dom = $.parseHTML(data);
			var _total = 0;
			$(dom).find('.itemPriceAmount').each(function(){
				var numchar = $(this).text().match(/[0-9]/g);
				var price = 0;
				if (numchar != null) {
					price = Number(numchar.join(''));
				}
				_total += price;	
			});
			if(_total === 0) df.reject();
			else df.resolve(_total);
		});
		return df.promise();
	}
 
	function get(num) {
		var df = $.Deferred();
		$.ajax({
      url: 'https://order.my.rakuten.co.jp/?page=myorder&fidomy=1&display_month=0&search_item=&page_num='+num+'&search_sender=&display_span='+year+'&search_shop=',
        success: function(data){
				df.resolve(data);
			}
		});
		return df.promise();
	}
 
	function addFigure(str) {
		var num = new String(str).replace(/,/g, "");
		while(num != (num = num.replace(/^(-?\d+)(\d{3})/, "$1,$2")));
		return num;
	}
 
	if(typeof $ !== 'function') {
		var d=document;
		var s=d.createElement('script');
		s.src='//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js';
		s.onload=init;
		d.body.appendChild(s);
	} else {
		init();
	}
})();