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87 lines
2.3 KiB
JavaScript

"use strict";
const assert = require("assert");
const cheerio = require("cheerio");
const syncpipe = require("syncpipe");
const url = require("url");
const assureResponse = require("../../shared/assure-response");
function firstMatch(options) {
for (let option of options) {
if (option != null && option !== "") {
return option;
}
}
}
module.exports = function tmeScrapeProduct({ session }) {
return async function ({ data, createAlias, updateData, expireDependents }) {
let response = await session.get(data.url);
assureResponse(response);
let $ = cheerio.load(response.body);
// FIXME: This is currently broken!
let allMetaHeaders = syncpipe($("h2.o-semantic-only-header").toArray(), [
(_) => _.map((header) => {
let $header = $(header);
return [
$header.find(".name").text().trim(),
$header.find(".value").text().trim()
];
}),
(_) => Object.fromEntries(_)
]);
let descriptionElement = $(".c-pip__description > h2").eq(0);
let itemData = {
productID: $("h2.c-pip__symbol--tme .c-pip__symbol-value").eq(0).text().trim(),
manufacturer: $("a.pip__product-header-title").eq(0).text().trim(),
model: firstMatch([
$("h2.c-pip__symbol--producer .c-pip__symbol-value").eq(0).text().trim(), // Manufacturer part number
$("h2.c-pip__symbol--tme .c-pip__symbol-value").eq(0).text().trim(), // TME Symbol
]),
description: (descriptionElement.children().length === 0) // This skips meta fields if there is no description element
? descriptionElement.text().trim()
: null,
documents: $("div.c-pip__document > a").toArray()
.map((link) => {
let relativeLink = $(link).attr("href");
if (relativeLink != null) {
return {
description: $(link).text().trim(),
url: url.resolve(
data.url,
relativeLink
)
};
} else {
// Probably a video popup
return null;
}
})
.filter((item) => {
return item != null;
}),
// TODO: Scrape prices
};
assert(itemData.productID != null);
assert(itemData.manufacturer != null);
assert(itemData.model != null);
createAlias({ from: `tme:product:${itemData.productID}` });
updateData((oldData) => ({
... oldData,
itemData: itemData
}));
expireDependents();
};
};