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Flight Rising - Detect Underpriced Auctions

Detects and highlights Auction House listings where the price is set at or below the autosell cost. If underpriced listings are found, automatically scrolls down to the first one.

// ==UserScript==
// @name         Flight Rising - Detect Underpriced Auctions
// @namespace    https://greasyfork.org/users/547396
// @version      0.3
// @description  Detects and highlights Auction House listings where the price is set at or below the autosell cost. If underpriced listings are found, automatically scrolls down to the first one.
// @author       Jicky
// @match        https://www1.flightrising.com/auction-house/buy/*
// @icon         https://www.google.com/s2/favicons?domain=flightrising.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // User-editable values:
    var treasurePerGem = 1500.0;
    var priceOffset = 0;
    var flagColor = 'Gold';

    // FLAGGING
    // ------

    function detectUnderpriced() {
        var underpriced = [];
        var sellValues = parseItemSellValues();
        var listingDivs = document.querySelectorAll('div.ah-listing-row');
        for (const div of listingDivs) {
            let itmId = parseInt(div.getAttribute('data-listing-itemid'));
            let price = parseFloat(div.querySelector('div.ah-listing-sellprice div strong').textContent);
            if (div.querySelector('img.ah-listing-currency-icon').getAttribute('src').includes('gems')) {
                price = (price * treasurePerGem);
            }

            if ((price-priceOffset) <= sellValues[itmId]) {
                flagListing(div)
                underpriced.push(div);
            }
        }
        console.log(`Underpriced listings found: ${underpriced.length}`);
        if (underpriced.length > 0) { underpriced[0].scrollIntoView(); }
        return underpriced;
    }

    function flagListing(div) {
        div.style.backgroundColor = flagColor;
    }

    // PARSING
    // ------

    function parseItemSellValues() {
        var itemSellValues = [];
        var tooltips = document.querySelectorAll('div.itemtip');
        for (const tooltip of tooltips) {
            let id=parseInt(tooltip.getAttribute('id').split("-")[1]);
            let val=parseInt(tooltip.querySelector('div.sellval').textContent);
            itemSellValues[id] = val;
        }
        return itemSellValues;
    }

    detectUnderpriced();

})();