heissepreise/stores/lidl.js

const axios = require("axios");
const utils = require("./utils");

const HITS = Math.floor(30000 + Math.random() * 2000);

const conversions = {
    "": { unit: "stk", factor: 1 },
    dosen: { unit: "stk", factor: 1 },
    blatt: { unit: "stk", factor: 1 },
    flaschen: { unit: "stk", factor: 1 },
    l: { unit: "ml", factor: 1000 },
    liter: { unit: "ml", factor: 1000 },
    ml: { unit: "ml", factor: 1 },
    g: { unit: "g", factor: 1 },
    kg: { unit: "g", factor: 1000 },
    "stk.": { unit: "stk", factor: 1 },
};

exports.getCanonical = function (item, today) {
    let quantity = 1;
    let unit = "";
    let text = (item.price.basePrice?.text ?? "").trim().split("(")[0].replaceAll(",", ".").toLowerCase();
    let isWeighted = false;

    if (text === "per kg") {
        isWeighted = true;
        unit = "kg";
    } else {
        if (text.startsWith("bei") && text.search("je ") != -1) text = text.substr(text.search("je "));

        for (let s of ["ab ", "je ", "ca. ", "z.b.: ", "z.b. "]) text = text.replace(s, "").trim();

        const regex = /^([0-9.x ]+)(.*)$/;
        const matches = text.match(regex);
        if (matches) {
            matches[1].split("x").forEach((q) => {
                quantity = quantity * parseFloat(q.split("/")[0]);
            });
            unit = matches[2].split("/")[0].trim().split(" ")[0];
        }
        unit = unit.split("-")[0];
    }

    return utils.convertUnit(
        {
            id: item.productId,
            name: `${item.keyfacts?.supplementalDescription?.concat(" ") ?? ""}${item.fullTitle}`,
            price: item.price.price,
            priceHistory: [{ date: today, price: item.price.price }],
            unit,
            quantity,
            url: `https://www.lidl.at${item.canonicalUrl}`,
        },
        conversions,
        "lidl"
    );
};

exports.fetchData = async function () {
    const LIDL_SEARCH = `https://www.lidl.at/p/api/gridboxes/AT/de/?max=${HITS}`;
    return (await axios.get(LIDL_SEARCH)).data.filter((item) => !!item.price.price);
};