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Generate quantity and unified unit for spar data

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This commit is contained in:
Matthias Hochsteger 2023-05-27 19:49:23 +02:00
parent b3d3a30286
commit 22f380c390
1 changed files with 35 additions and 4 deletions
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39
stores/spar.js
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@ -1,16 +1,46 @@
const axios = require("axios");
const HITS = Math.floor(30000 + Math.random() * 2000);
const conversions = {
'G': { unit: 'g', factor: 1 },
'KG': { unit: 'g', factor: 1000 },
'L': { unit: 'ml', factor: 1000 },
'ML': { unit: 'ml', factor: 1 },
'STK': { unit: 'stk', factor: 1 },
'Stück': { unit: 'stk', factor: 1 },
'kg': { unit: 'g', factor: 1000 },
'l': { unit: 'ml', factor: 1000 },
'100ml': { unit: 'ml', factor: 100 },
'WG': { unit: 'wg', factor: 1 },
'100g': { unit: 'g', factor: 100 },
'm': { unit: 'cm', factor: 100 },
'ml': { unit: 'ml', factor: 1 },
};
exports.getCanonical = function(item, today) {
let price, unit;
let price, unit, quantity;
if (item.masterValues["quantity-selector"]) {
const [str_price, str_unit] = item.masterValues["price-per-unit"].split('/');
price = parseFloat(str_price.replace("€", ""));
unit = str_unit.trim();
}
else {
price = item.masterValues.price;
unit = item.masterValues["short-description-3"];
}
if("short-description-3" in item.masterValues) {
let [rawQuantity, rawUnit] = item.masterValues["short-description-3"].replace(" EINWEG", "").replace(" MEHRWEG", "").trim().split(' ');
const conv = conversions[rawUnit];
quantity = parseFloat(rawQuantity.replace(',','.')) * conv.factor;
unit = conv.unit;
}
else{
// use price per unit to calculate quantity (less accurate)
let [unitPrice, rawUnit] = item.masterValues['price-per-unit'].split('/');
unitPrice = parseFloat(unitPrice.replace("€", ""));
const conv = conversions[rawUnit];
if(conv === undefined)
console.error("unknown unit: " + rawUnit)
quantity = Math.round(price / unitPrice * conv.factor)
unit = conv.unit;
}
return {
id: item.masterValues["code-internal"],
@ -19,6 +49,7 @@ exports.getCanonical = function(item, today) {
price,
priceHistory: [{ date: today, price }],
unit,
quantity,
bio: item.masterValues.biolevel === "Bio"
};
}
@ -27,4 +58,4 @@ exports.fetchData = async function() {
const SPAR_SEARCH = `https://search-spar.spar-ics.com/fact-finder/rest/v4/search/products_lmos_at?query=*&q=*&page=1&hitsPerPage=${HITS}`;
const rawItems = (await axios.get(SPAR_SEARCH)).data.hits;
return rawItems?.hits || rawItems;
}
}