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andrewjmetzger / Amazon CamelCamelCamel Graph

// ==UserScript==
// @name           Amazon CamelCamelCamel Graph
// @version        1.0.6
// @description    Add CamelCamelCamel graph, link to Amazon product pages.
// @author         Andrew Metzger
// @namespace      http://static.nerdoncloud.com/userscripts/
// @include        /^https?://www\.amazon\.tld/*$/
// @include        http://*.camelcamelcamel.com/*
// @include        http://camelcamelcamel.com/*
// @require        https://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js
// @require        https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
// ==/UserScript==


var width = 400;
var height = 250;
var chart = "amazon-new"; // Possible values are "amazon", "amazon-new", "new", "used", "new-used", "amazon-new-used"


var arr = document.domain.split(".");
var country = arr[arr.length - 1];
if (country == "com") {
    country = "us";
}

var element = $(':input[id="ASIN"]');
var asin = $.trim(element.attr("value"));

if (asin === "") {
    element = $(':input[id="ASIN"]');
    asin = $.trim(element.attr("value"));
}
var link2 = "<a  target='blank' href='http://" + country + ".camelcamelcamel.com/product/" + asin + "'><img src='http://charts.camelcamelcamel.com/" + country + "/" + asin + "/" + chart + ".png?force=1&zero=0&w=" + width + "&h=" + height + "&desired=false&legend=1&ilt=1&tp=all&fo=0' /></a>";
var camelurl = 'http://' + country + '.camelcamelcamel.com/product/' + asin;
GM_xmlhttpRequest({
    method: 'GET',
    url: camelurl,

    onload: function (response) {

        var parser = new DOMParser();
        var responseDoc = parser.parseFromString(response.responseText, "text/html");
        var chartpost = 0;
        if (chart == "amazon" || chart == "amazon-new" || chart == "amazon-new-used" || chart == "amazon-used") {
            if (!responseDoc.getElementById('price_type_1').disabled) {
                $("#averageCustomerReviews_feature_div").append("<div id='camelcamelcamel' style='margin-top: 10px; margin-left: -10px'>" + link2 + "</div>");
                chartpost = 1;
            }
        }

        if (chart == "new" || chart == "amazon-new" || chart == "amazon-new-used" || chart == "new-used") {
            if (!responseDoc.getElementById('price_type_2').disabled && chartpost === 0) {
                $("#averageCustomerReviews_feature_div").append("<div id='camelcamelcamel' style='margin-top: 10px; margin-left: -10px'>" + link2 + "</div>");
                chartpost = 1;
            }
        }


        if (chart == "used" || chart == "amazon-used" || chart == "amazon-new-used" || chart == "new-used") {
            if (!responseDoc.getElementById('price_type_2').disabled && chartpost === 0) {
                $("#averageCustomerReviews_feature_div").append("<div id='camelcamelcamel' style='margin-top: 10px; margin-left: -10px'>" + link2 + "</div>");

            }
        }

    }
});

function thisCodeProduct() {
    var url = unescape(location.href);
    var pattern = "http://([a-z]{0,2}).?camelcamelcamel.com/(.*)/product/B([A-Z0-9]{9}).*";
    var exp = new RegExp(pattern, "gi");
    return url.replace(exp, "$3");
}

var url = unescape(location.href);
var pattern = "http://([a-z]{0,2}).?camelcamelcamel.com/.*";
var exp = new RegExp(pattern, "gi");
var code = url.replace(exp, "$1");

if (code === '')
    code = 'com';
else if (code == 'uk')
    code = 'co.uk';

$(document).ready(function () {
    var links = document.evaluate("//a[contains(@href, 'camelcamelcamel.com')]", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0; i < links.snapshotLength; i++) {
        var link = links.snapshotItem(i);
        if (link.title == 'View the product page at Amazon') {
            link.removeAttribute('onclick');
            link.href = 'https://www.amazon.' + code + '/dp/B' + thisCodeProduct() + '/';
        }
    }


});

(function (doc) {
    // ASIN.0 in kindle store
    var asin = doc.getElementById("ASIN") || doc.getElementsByName("ASIN.0")[0];
    if (asin) {
        asin = asin.value;
        history.replaceState(null, "", "/dp/" + asin + "/");
    }

})(document);