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Subeta Autobuy

This script automatically buys items at the lowest price on the Shop Search page.

Fra og med 30.06.2017. Se den nyeste version.

Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greasyfork.org/scripts/30965/203424/Subeta%20Autobuy.js 

// ==UserScript==
// @name         Subeta Autobuy
// @namespace    http://artees.pw/
// @description  This script automatically buys items at the lowest price on the Shop Search page.
// @version      0.5
// @author       Artees
// @match        *://subeta.net/user_shops.php/search/shops/*
// @match        *://subeta.net/shop.php?shopid=*
// @match        *://subeta.net/explore/pawn.php/buy/*
// @grant        none
// @icon         https://subeta.net/favicon.ico
// @icon64       https://img.subeta.net/items/accessory_hustlermoneyclip.gif
// ==/UserScript==

const KEY_AUTOBUY_SOURCE = "autobuySource",
    KEY_AUTOBUY_NPC = "autobuyNpc";

function autobuy() {
    setTimeout(buy, 1000);

    function buy() {
        var source = sessionStorage[KEY_AUTOBUY_SOURCE];
        if (source === undefined) return;
        sessionStorage.removeItem(KEY_AUTOBUY_SOURCE);
        setTimeout(goBack, 20000);
        function goBack() {
            open(source, "_self");
        }
        var rows = getRows(),
            items = [];
        if (rows.length === 0) return;
        for (var i = 0; i < rows.length; i++) {
            var row = rows[i],
                buttons = getButtons(row);
            if (buttons.length === 0) continue;
            items.push(row);
        }
        function getButtons(e) {
            return e.getElementsByClassName("btn btn-primary btn-sm");
        }
        items.sort(comparePrices);
        var item = items[0],
            isNPC = item.innerText.indexOf("NPC Shop") !== -1;
        if (isNPC) {
            sessionStorage[KEY_AUTOBUY_NPC] = source;
        }
        var button = getButtons(item)[0],
            countdown = getCountdown(),
            nextButton = getButtons(items[1])[0],
            openCount = 0,
            clickCount = 4,
            clickIntervalId = setInterval(click, 1000);
        function getCountdown () {
            var s = document.getElementsByTagName("strong");
            for (var i = 0; i < rows.length; i++) {
                if (s[i].innerText === "Buy") return s[i];
            }
        }
        countdown.innerText = clickCount.toString();
        function click() {
            clickCount--;
            countdown.innerText = clickCount.toString();
            if (clickCount > 0) return;
            clearInterval(clickIntervalId);
            button.click();
            if (!isNPC) {
                var sourceIntervalId = setInterval(openSource, 500);
            }
            function openSource() {
                openCount++;
                if (button.disabled && nextButton.disabled && openCount < 10) return;
                open(source, "_self");
                clearInterval(sourceIntervalId);
            }
        }
    }

    function getRows() {
        return document.getElementsByClassName("row");
    }

    function comparePrices(a, b) {
        var aPrice = getPrice(a),
            bPrice = getPrice(b);
        function getPrice(item) {
            var itemText = item.innerHTML,
                end = itemText.indexOf(" sP"),
                start = itemText.lastIndexOf(">", end) + 1,
                priceText = replaceAll(itemText.substring(start, end), ",", "");
            return parseInt(priceText);
        }
        return aPrice - bPrice;
    }

    function replaceAll(target, searchValue, replaceValue) {
        return target.replace(new RegExp(searchValue, 'g'), replaceValue);
    }

    back();

    function back() {
        if (getRows().length > 0) return;
        var npcSource = sessionStorage[KEY_AUTOBUY_NPC];
        if (npcSource === undefined) return;
        sessionStorage.removeItem(KEY_AUTOBUY_NPC);
        open(npcSource, "_self");
    }
}