mirror of
https://github.com/badlogic/heissepreise.git
synced 2024-07-04 22:35:48 +02:00
274 lines
10 KiB
JavaScript
274 lines
10 KiB
JavaScript
function currentDate() {
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const currentDate = new Date();
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const year = currentDate.getFullYear();
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const month = String(currentDate.getMonth() + 1).padStart(2, '0');
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const day = String(currentDate.getDate()).padStart(2, '0');
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return `${year}-${month}-${day}`;
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}
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function getQueryParameter(name) {
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const url = window.location.href;
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const queryString = url.substring(url.indexOf('?') + 1);
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const parameters = queryString.split('&');
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for (var i = 0; i < parameters.length; i++) {
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const parameter = parameters[i].split('=');
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const paramName = decodeURIComponent(parameter[0]);
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if (paramName == name) return decodeURIComponent(parameter[1]);
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}
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return null;
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}
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function toNumber(value, defaultValue) {
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try {
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return Number.parseFloat(value);
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} catch (e) {
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return defaultValue;
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}
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}
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function dom(el, html) {
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let element = document.createElement(el);
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element.innerHTML = html;
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return element;
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}
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let carts = [];
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loadCarts();
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function loadCarts() {
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let val = localStorage.getItem("carts");
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carts = val ? JSON.parse(val) : [];
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}
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function saveCarts() {
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localStorage.setItem("carts", JSON.stringify(carts, null, 2));
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}
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function hasCart(name) {
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for (cart of carts) {
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if (cart.name = name) return true;
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}
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return false;
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}
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function addCart(name) {
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carts.push({
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name: name,
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items: []
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});
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saveCarts();
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}
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function removeCart(name) {
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carts = carts.filter(cart => cart.name != name);
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saveCarts();
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}
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function itemToStoreLink(item) {
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if (item.store == "spar")
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return `<a target="_blank" href="https://www.interspar.at/shop/lebensmittel/search/?q=${encodeURIComponent(item.name)}">${item.name}</a>`;
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if (item.store == "billa")
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return `<a target="_blank" href="https://shop.billa.at/search/results?category=&searchTerm=${encodeURIComponent(item.name)}">${item.name}</a>`;
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if (item.store == "hofer")
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return `<a target="_blank" href="https://www.roksh.at/hofer/angebot/suche/${encodeURIComponent(item.name)}">${item.name}</a>`;
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return item.name;
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}
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function itemToDOM(item) {
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let storeDom = dom("td", item.store);
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let nameDom = dom("td", itemToStoreLink(item));
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let unitDom = dom("td", item.unit ? item.unit : "");
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let priceDomText = item.price + (item.priceHistory.length > 1 ? (item.priceHistory[0].price > item.priceHistory[1].price ? " 📈" : " 📉") + " (" + (item.priceHistory.length - 1) + ")" : "");
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let priceDom = dom("td", priceDomText);
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if (item.priceHistory.length > 1) {
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priceDom.style["cursor"] = "pointer";
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priceDom.addEventListener("click", () => {
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if (priceDom.innerHTML == priceDomText) {
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priceDom.innerHTML = priceDomText;
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let pricesText = "";
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for (let i = 0; i < item.priceHistory.length; i++) {
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const date = item.priceHistory[i].date;
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const currPrice = item.priceHistory[i].price;
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const lastPrice = item.priceHistory[i + 1] ? item.priceHistory[i + 1].price : currPrice;
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const increase = Math.round((currPrice - lastPrice) / lastPrice * 100);
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let priceColor = "black";
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if (increase > 0) priceColor = "red";
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if (increase < 0) priceColor = "green";
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pricesText += `<br><span style="color: ${priceColor}">${date} ${currPrice} ${increase > 0 ? "+" + increase : increase}%</span>`;
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}
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priceDom.innerHTML += pricesText;
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} else {
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priceDom.innerHTML = priceDomText;
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}
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});
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}
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let row = dom("tr", "");
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switch(item.store) {
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case "billa":
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row.style["background"] = "rgb(255 255 225)";
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break;
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case "spar":
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row.style["background"] = "rgb(225 244 225)";
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break;
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case "hofer":
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row.style["background"] = "rgb(230 230 255)";
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break;
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}
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row.appendChild(storeDom);
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row.appendChild(nameDom);
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row.appendChild(unitDom);
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row.appendChild(priceDom);
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return row;
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}
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let componentId = 0;
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function searchItems(items, query, exact) {
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query = query.trim();
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if (query.length < 3) return [];
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if (query.charAt(0) == "!") {
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query = query.substring(1);
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try {
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let hits = alasql("select * from ? where " + query, [items]);
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if (hits.length > 1000) {
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return hits.slice(0, 1000);
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} else {
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return hits;
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}
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} catch (e) {
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return [];
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}
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}
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const tokens = query.split(/\s+/).map(token => token.toLowerCase().replace(",", "."));
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let hits = [];
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for (item of items) {
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let allFound = true;
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for (token of tokens) {
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if (token.length == 0) continue;
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const index = item.search.indexOf(token);
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if (index < 0) {
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allFound = false;
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break;
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}
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if (exact) {
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if (index > 0 && (item.search.charAt(index - 1) != " " && item.search.charAt(index - 1) != "-")) {
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allFound = false;
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break;
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}
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if (index + token.length < item.search.length && item.search.charAt(index + token.length) != " ") {
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allFound = false;
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break;
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}
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}
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}
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if (allFound)
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hits.push(item);
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}
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return hits;
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}
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async function loadItems() {
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const response = await fetch("api/index")
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const items = await response.json();
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for (item of items) {
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item.search = item.name + " " + item.unit;
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item.search = item.search.toLowerCase().replace(",", ".");
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item.numPrices = item.priceHistory.length;
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item.priceOldest = item.priceHistory[item.priceHistory.length - 1].price;
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item.date = item.priceHistory[0].date;
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let lastPrice = item.price;
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for (let i = 1; i < 10; i++) {
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let price = item.priceHistory[i];
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if (!price) price = lastPrice;
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item["price" + (i + 1)] = price.price;
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item["date" + (i + 1)] = price.date;
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lastPrice = price;
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}
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}
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return items;
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}
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function newSearchComponent(parentElement, items, filter, headerModifier, itemDomModifier) {
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let id = componentId++;
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parentElement.innerHTML = "";
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parentElement.innerHTML = `
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<input id="search-${id}" class="search" type="text" placeholder="Produkte suchen...">
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<div class="filters">
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<label><input id="billa-${id}" type="checkbox" checked="true"> Billa</label>
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<label><input id="spar-${id}" type="checkbox" checked="true"> Spar</label>
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<label><input id="hofer-${id}" type="checkbox" checked="true"> Hofer</label>
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<label><input id="eigenmarken-${id}" type="checkbox"> Nur CLEVER / S-BUDGET / MILFINA</label>
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</div>
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<div class="filters">
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<label>Min € <input id="minprice-${id}" type="number" min="0" value="0"></label>
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<label>Max € <input id="maxprice-${id}" type="number" min="0" value="100"></label>
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<label><input id="exact-${id}" type="checkbox"> Exaktes Wort</label>
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</div>
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<div id="numresults-${id}"></div>
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<table id="result-${id}"></table>
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`;
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const searchInput = parentElement.querySelector(`#search-${id}`);
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const exact = parentElement.querySelector(`#exact-${id}`);
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const table = parentElement.querySelector(`#result-${id}`);
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const eigenmarken = parentElement.querySelector(`#eigenmarken-${id}`);
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const billa = parentElement.querySelector(`#billa-${id}`);
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const spar = parentElement.querySelector(`#spar-${id}`);
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const hofer = parentElement.querySelector(`#hofer-${id}`);
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const minPrice = parentElement.querySelector(`#minprice-${id}`);
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const maxPrice = parentElement.querySelector(`#maxprice-${id}`);
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const numResults = parentElement.querySelector(`#numresults-${id}`);
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let search = (query) => {
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let hits = searchItems(items, query, exact.checked);
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if (filter) hits = hits.filter(filter);
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table.innerHTML = "";
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if (hits.length == 0) return;
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if (query.trim().charAt(0) != "!") hits.sort((a, b) => a.price - b.price);
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const header = dom("tr", `<th>Kette</th><th>Name</th><th>Menge</th><th>Preis</th>`);
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if (headerModifier) headerModifier(header);
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table.appendChild(header);
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let num = 0;
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hits.forEach(hit => {
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const name = hit.name.toLowerCase();
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if (hit.store == "billa" && !billa.checked) return;
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if (hit.store == "spar" && !spar.checked) return;
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if (hit.store == "hofer" && !hofer.checked) return;
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if (hit.price < toNumber(minPrice.value, 0)) return;
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if (hit.price > toNumber(maxPrice.value, 100)) return;
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if (eigenmarken.checked && !(name.indexOf("clever") == 0 || name.indexOf("s-budget") == 0 || name.indexOf("milfina") == 0))
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return;
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let itemDom = itemToDOM(hit);
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if (itemDomModifier) itemDom = itemDomModifier(hit, itemDom);
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table.appendChild(itemDom);
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num++;
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});
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numResults.innerHTML = "Resultate: " + num;
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}
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searchInput.addEventListener("input", (event) => {
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if (searchInput.value.length == 0) {
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minPrice.value = 0;
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maxPrice.value = 100;
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}
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search(searchInput.value);
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});
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eigenmarken.addEventListener("change", () => search(searchInput.value));
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billa.addEventListener("change", () => search(searchInput.value));
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spar.addEventListener("change", () => search(searchInput.value));
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hofer.addEventListener("change", () => search(searchInput.value));
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exact.addEventListener("change", () => search(searchInput.value));
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minPrice.addEventListener("change", () => search(searchInput.value));
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maxPrice.addEventListener("change", () => search(searchInput.value));
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return () => search(searchInput.value);
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} |