Market helper

market helper
Wrap lines
// ==UserScript==
// @name         Market helper
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  market helper
// @author       Salmon
// @license MIT 
// @include      https://my.lordswm.com/auction.php*
// @include      https://www.heroeswm.ru/auction.php*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const createEl = (el, style, innerText, placeholder, type) => {
        let element = document.createElement(el);
        if (style) element.style = style;
        if (innerText) element.innerText = innerText;
        if (placeholder) element.placeholder = placeholder;
        if (type) element.type = type;
        return element;
    }

    let items = [...document.querySelectorAll('.wb')];
    items.shift();

    let pricesForOne = [];
    let pricesForMult = [];

    let likablePriceLS = JSON.parse(localStorage.getItem('likablePriceLS'));
    if (likablePriceLS === null) localStorage.setItem('likablePriceLS', JSON.stringify(0));
    let likablePrice = likablePriceLS;

    let useOnlyForOneLS = JSON.parse(localStorage.getItem('useOnlyForOneLS'));
    if (useOnlyForOneLS === null) localStorage.setItem('useOnlyForOneLS', JSON.stringify(false));
    let useOnlyForOneT = useOnlyForOneLS;

    let useOnlyForMultLS = JSON.parse(localStorage.getItem('useOnlyForMultLS'));
    if (useOnlyForMultLS === null) localStorage.setItem('useOnlyForMultLS', JSON.stringify(false));
    let useOnlyForMultT = useOnlyForMultLS;

    let likablePriceInput = createEl('input');
    likablePriceInput.value = likablePriceLS;

    likablePriceInput.addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            localStorage.setItem('likablePriceLS', JSON.stringify(likablePriceInput.value));
            likablePrice = Number(likablePriceInput.value);
            render();
        }
    });

    let useOnlyForOne = createEl('input','', '','','checkbox');
    useOnlyForOne.checked = useOnlyForOneLS;
    useOnlyForOne.addEventListener('click', () => {
        useOnlyForOneT = !useOnlyForOneT;
        localStorage.setItem('useOnlyForOneLS', JSON.stringify(useOnlyForOneT));
        useOnlyForOne.checked = useOnlyForOneT;
        render();
    })
    let useOnlyForOneLabel = createEl('div', '', 'Разово')

    let useOnlyForMult = createEl('input','', '','','checkbox');
    useOnlyForMult.checked = useOnlyForMultLS;
    useOnlyForMult.addEventListener('click', () => {
        useOnlyForMultT = !useOnlyForMultT;
        localStorage.setItem('useOnlyForMultLS', JSON.stringify(useOnlyForMultT));
        useOnlyForMult.checked = useOnlyForMultT;
        render();
    })
    let useOnlyForMultLabel = createEl('div', '', 'Багаторазово');

    let operationBlock = createEl('div', 'display: flex; text-align: right');
    operationBlock.appendChild(useOnlyForOneLabel)
    operationBlock.appendChild(useOnlyForOne)
    operationBlock.appendChild(useOnlyForMultLabel)
    operationBlock.appendChild(useOnlyForMult)

    let block = document.getElementsByClassName('wbwhite')[0];
    block = block.getElementsByTagName('tr')[0].lastChild;
    block.appendChild(likablePriceInput);
    block.appendChild(operationBlock);

    let artInfoLink = items[0].getElementsByTagName('a')[1].href;

    const opti = (price, repair, currStrength, strength) => {
        let summ = price;
        let str = strength;
        let count = currStrength;
        let opt = [{price: Math.round(summ/count), str: str}];

        for (let i = 1; i < strength; i++) {
            summ += repair;
            count += Math.round(str * 0.9);
            str = str - 1;
            opt.push({price: Math.round(summ/count), str: str});
        }
        return opt;
    }

    const checkPrice = (repair) => {
        items.forEach(item => {
            let text = item.innerText;
            let strength = text.match(/Прочность: \d+\/\d+/gi)[0].match(/\d+\/\d+/gi)[0].split('/');
            let price = Number(text.match(/\d+,\d+,?\d+/gi)[0].replaceAll(',', ''));
            let myPriceDiv = document.createElement('div');
            let myOptiSlomDiv = document.createElement('div');
            let data = opti(price, repair, +strength[0], +strength[1]);
            let czb = data.map(el => el.price);
            czb = Math.min(...czb);
            let optiSlom = data.filter(el => el.price === czb);
            optiSlom = optiSlom.map(el => el.str);
            optiSlom = Math.min(...optiSlom);

            pricesForMult.push(czb);
            if (likablePrice >= czb && useOnlyForMultT) {
                item.style.background = 'yellow'
            }
            myPriceDiv.innerText = `багато ${czb}`;
            myPriceDiv.style = 'color: green';
            myOptiSlomDiv.innerText = `оптислом 0/${optiSlom}`
            let mid = item.children[2];
            mid.appendChild(myPriceDiv);
            mid.appendChild(myOptiSlomDiv);
        })
    }

    const checkPriceForOneUse = () => {
        items.forEach(item => {
            let text = item.innerText;
            let strength = text.match(/Прочность: \d+\/\d+/gi)[0].match(/\d+\/\d+/gi)[0].split('/');
            let price = Number(text.match(/\d+,\d+,?\d+/gi)[0].replaceAll(',', ''));
            let myPriceDiv = document.createElement('div');
            let czb = Math.round(price/Number(strength[0]));
            pricesForOne.push(czb);
            myPriceDiv.innerText = `разовий ${czb}`;
            myPriceDiv.style = 'color: red';
            if (likablePrice >= czb && useOnlyForOneT) {
                item.style.background = 'yellow'
            }
            let mid = item.children[2];
            mid.appendChild(myPriceDiv);
        })
    }
    checkPriceForOneUse();

    const fetchMy = async () => {
        let res = await fetch(artInfoLink);
        let text = await res.text();
        let repair = Number(text.match(/<td>\d+,\d+<\/td>/gi)[0].match(/\d+,\d+/gi)[0].replace(',', ''));
        checkPrice(repair)
    }

    const render = () => {
        for (let i = 0; i < pricesForOne.length; i++) {
            if (likablePrice >= pricesForOne[i] && useOnlyForOneT) {
                items[i].style.background = 'yellow';
            } else if (likablePrice >= pricesForMult[i] && useOnlyForMultT) {
                items[i].style.background = 'yellow';
            } else {
                items[i].style.background = '';
            }
        }
    }

    fetchMy()

})();
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