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Subeta Searching

This script searches for shops.

Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta // @require https://update.greasyfork.org/scripts/30529/203734/Subeta%20Searching.js 

// ==UserScript==
// @name         Subeta Searching
// @namespace    http://artees.pw/
// @description  This script searches for shops.
// @version      1.8
// @author       Artees
// @match        *://subeta.net/user_shops.php/mine/*
// @match        *://subeta.net/shop.php?shop*
// @exclude      *quick_stock*
// @exclude      *profits*
// @exclude      *history*
// @exclude      *edit_shop*
// @exclude      *delete_shop*
// @grant        none
// @icon         https://subeta.net/favicon.ico
// @icon64       https://img.subeta.net/items/identifier_04_crystal.gif
// ==/UserScript==

const CY = " sP",
    SPLITTER = "    | ",
    XHR = new XMLHttpRequest(),
    KEY_ITEM_DELAY = "itemDelay";

var itemDelay = getFromStorage(localStorage, KEY_ITEM_DELAY, 5),
    itemCountdown = itemDelay,
    loadIntervalId,
    loadIntervalCount = 0;

function parseItems(itemDivs, getPriceField) {
    var prevItem = null,
        firstItem;
    for (var i = 0; i < itemDivs.length; i++) {
        var priceField = getPriceField(itemDivs[i]);
        if (priceField === null) {
            continue;
        }
        var curItem = new Item(itemDivs[i], priceField);
        if (curItem.priceField === null) {
            continue;
        }
        if (prevItem === null) {
            firstItem = curItem;
        } else {
            prevItem.next = curItem;
        }
        prevItem = curItem;
    }
    if (prevItem !== null) {
        prevItem.next = firstItem;
    }
    return firstItem;
}

function getFromStorage(storage, key, defaultValue) {
    if (storage[key] === undefined) {
        return defaultValue;
    } else {
        return typeof defaultValue === "boolean" ? storage[key] === "true" : storage[key];
    }
}

function forEachItem(action) {
    var f = curItem,
        i = f;
    do {
        if (!action(i)) {
            return;
        }
        i = i.next;
    } while (i !== f);
}

function createSpace() {
    var space = document.createElement("SPAN");
    space.innerText = "|";
    space.style = "display: inline-block; width: 50px;";
    return space;
}

function search() {
    var safeName = replaceAll(curItem.name, "%", "%25");
    XHR.open("GET", "https://subeta.net/user_shops.php/search/shops/" + safeName, true);
    XHR.send();
    curItem.priceField.value = curItem.resetPrice();
    curItem.priceField.value += SPLITTER;
    loadIntervalCount = 0;
    loadIntervalId = setInterval(updateSearchProgress, 100);
}

function updateSearchProgress() {
    loadIntervalCount++;
    if (loadIntervalCount > 20) {
        clearInterval(loadIntervalId);
        XHR.abort();
        search();
        return;
    }
    curItem.priceField.value += ".";
}

XHR.onreadystatechange = function setLowestPrice() {
    if (XHR.readyState !== XMLHttpRequest.DONE || XHR.status !== 200) return;
    clearInterval(loadIntervalId);
    var pricesText = XHR.responseText.split(CY),
        prices = [];
    for (var i = 0; i < pricesText.length; i++) {
        var priceWithCommas = pricesText[i].substring(pricesText[i].lastIndexOf(">") + 1),
            priceText = replaceAll(priceWithCommas, ",", ""),
            price = parseInt(priceText);
        if (isNaN(price)) continue;
        var isNPC = pricesText[i].indexOf("(NPC Shop)") !== -1,
            priceObject = new Price(price, isNPC);
        prices.push(priceObject);
    }
    if (prices.length > 0) {
        prices.sort(compareNumbers);
    }
    filterPrices(prices);
    curItem = curItem.next;
    if (curItem.onSelect()) {
        itemIntervalId = setInterval(updateItemCountdown, 1000);
    }
};

function Price(value, isNPC) {
    this.isNPC = function () {
        return isNPC;
    };
    this.valueOf = function () {
        return value;
    };
    this.toString = function () {
        return value.toString();
    };
}

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

function compareNumbers(a, b)
{
    return a - b;
}

function updateItemCountdown() {
    curItem.priceField.value = curItem.resetPrice() + SPLITTER + itemCountdown;
    itemCountdown--;
    if (itemCountdown >= 0) return;
    curItem.priceField.value = curItem.resetPrice();
    itemCountdown = itemDelay;
    clearInterval(itemIntervalId);
    search();
}