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jobDetail.ts
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jobDetail.ts
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import type { Log } from 'apify';
import { chunk } from 'lodash';
import type { Portadom, PortadomPromise } from 'portadom';
import {
EmploymentType,
ProfesiaSkJobOfferDescriptionFields,
SimpleProfesiaSKJobOfferItem,
JobOfferCategoryItem,
ProfesiaSkJobOfferSalaryFields,
DetailedProfesiaSKJobOfferItem,
SALARY_PERIOD_ENUM,
} from '../types';
const employmentTypeInfo: Record<EmploymentType, { urlPath: string; text: string }> = {
fte: { urlPath: 'plny-uvazok', text: 'plný úväzok' },
pte: { urlPath: 'skrateny-uvazok', text: 'skrátený úväzok' },
selfemploy: { urlPath: 'zivnost', text: 'živnosť' },
voluntary: { urlPath: 'na-dohodu-brigady', text: 'na dohodu (brigády)' },
internship: { urlPath: 'internship-staz', text: 'internship, stáž' },
};
const descriptionSections = [
{
selector: '.job-info',
subsections: {
jobInfoResponsibilities: ['náplň práce', 'právomoci', 'zodpovednosti'],
jobInfoBenefits: ['výhody', 'benefity'],
jobInfoDeadline: ['termín', 'ukončenia', 'výberového konania'],
},
},
{
selector: '.job-requirements',
subsections: {
jobReqEducation: ['vzdelaním'],
jobReqExpertise: ['vzdelanie v odbore'],
jobReqLanguage: ['jazykové'],
jobReqOther: ['ostatné'],
jobReqDriversLicense: ['vodičský'],
jobReqIndustry: ['pozícii', 'v oblasti'],
jobReqSuitableForGraduate: ['absolventa'],
jobReqPersonalSkills: ['osobnostné', 'predpoklady', 'zručnosti'],
},
},
{
selector: '.company-info',
subsections: {
employerDescription: ['charakteristika spoločnosti'],
employeeCount: ['počet zamestnancov'],
employerContact: ['kontakt'],
},
},
] as const;
export const jobDetailDOMActions = {
// - https://www.profesia.sk/praca/komix-sk/O4556386
// - https://www.profesia.sk/praca/accenture/O4491399
// - https://www.profesia.sk/praca/gohealth/O3964543
// - https://www.profesia.sk/praca/ing-lukas-hromjak/O4068250
extractJobDetail: async <T extends Portadom<any, any>>({
dom,
log,
jobData,
}: {
dom: T;
log: Log;
/**
* In case we've come across this job ad on a listing page, we pass it here
* in case there's some data that was available then which is not here */
jobData?: SimpleProfesiaSKJobOfferItem;
}) => {
log.info(`Extracting job details from the page`);
const rootEl = dom.root();
const containerEl = rootEl.findOne('#content .container');
const entryEl = containerEl.findOne('#detail .card-content');
const labels = await containerEl
.findMany('.label')
.mapAsyncSerial((el) => el.textAsLower())
.then((arr) => arr.filter(Boolean) as string[]);
const offerUrl = await dom.url();
const offerId = offerUrl?.match(/O\d{2,}/)?.[0] ?? null;
const salaryText = await entryEl.findOne('.salary-range').text();
const salaryFields = jobDetailMethods.parseSalaryText(salaryText);
const basicFields = await jobDetailDOMActions.extractJobDetailBasicInfo(entryEl);
const descriptionFields = await jobDetailDOMActions.extractJobDetailDescriptionInfo(entryEl); // prettier-ignore
const categFields = await jobDetailDOMActions.extractJobDetailCategories(entryEl);
const entry = {
// Add the fields we've got from listing page
...jobData,
listingUrl: jobData?.listingUrl ?? null,
lastChangeRelativeTime: jobData?.lastChangeRelativeTime ?? null,
lastChangeType: jobData?.lastChangeType ?? null,
...basicFields,
...salaryFields,
...descriptionFields,
...categFields,
offerUrl,
offerId,
labels,
} satisfies DetailedProfesiaSKJobOfferItem;
log.info(`Done extracting job details from the page (ID: ${entry.offerId})`);
return entry;
},
extractJobDetailBasicInfo: async <T extends Portadom<any, any> | PortadomPromise<any, any>>(
dom: T
) => {
const offerName = await dom.findOne('[itemprop="title"]').text();
const employerName = await dom.findOne('[itemprop="hiringOrganization"]').text();
const employerUrl = await dom.findOne('.easy-design-btn-offer-list').href();
const employerLogoUrl = await dom.findOne('.easy-design-logo img').src();
const employmentTypesText = await dom.findOne('[itemprop="employmentType"]').text();
const employmentTypes = Object.entries(employmentTypeInfo).reduce<EmploymentType[]>((agg, [key, { text }]) => {
if (employmentTypesText?.includes(text)) agg.push(key as EmploymentType);
return agg;
}, []); // prettier-ignore
const startDate = await dom.findOne('.panel-body > .row:nth-child(2) > div:nth-child(1) span').text(); // prettier-ignore
const location = await dom.findOne('[itemprop="jobLocation"]').text();
const phoneNumbers = await dom
.findMany('.details-section .tel')
.mapAsyncSerial((el) => el.text())
.then((arr) => arr.filter(Boolean) as string[]);
const datePosted = await dom.findOne('[itemprop="datePosted"]').text();
return {
offerName,
employerName,
employerUrl,
employerLogoUrl,
employmentTypes,
startDate,
location,
phoneNumbers,
datePosted,
};
},
extractJobDetailDescriptionInfo: <T extends Portadom<any, any> | PortadomPromise<any, any>>(
dom: T
) => {
const descriptionInfo = descriptionSections.reduce<
Promise<ProfesiaSkJobOfferDescriptionFields>
>(async (promiseAgg, { subsections, selector }) => {
const agg = await promiseAgg;
const sectionEl = dom.findOne(selector);
await sectionEl.findOne('.subtitle-line').remove();
const sectionEls = await sectionEl.children().promise;
for (const [titleEl, contentEl] of chunk(sectionEls, 2)) {
const titleText = await titleEl.textAsLower();
for (const [subsection, fragments] of Object.entries(subsections)) {
const textMatches = fragments.some((text: string) => titleText?.includes(text));
if (!textMatches) continue;
await contentEl.findMany('.text-gray').mapAsyncSerial((el) => el.remove());
const key = subsection as keyof ProfesiaSkJobOfferDescriptionFields;
agg[key] = await contentEl.text();
}
}
return agg;
}, Promise.resolve({} as any));
return descriptionInfo;
},
extractJobDetailCategories: async <T extends Portadom<any, any> | PortadomPromise<any, any>>(
dom: T
) => {
const locationCategs: JobOfferCategoryItem[] = [];
const professionCategs: JobOfferCategoryItem[] = [];
let currHeading: string | null = null;
await dom
.findOne('.overall-info .hidden-xs')
.children()
.forEachAsyncSerial(async (el) => {
const nodeName = await el.nodeName();
if (nodeName === 'STRONG') {
currHeading = await el.textAsLower();
return;
}
if (nodeName === 'A' && currHeading?.includes('lokalit')) {
locationCategs.push({
url: await el.href(),
name: await el.text(),
});
}
if (nodeName === 'A' && currHeading?.includes('pozícia')) {
professionCategs.push({
url: await el.href(),
name: await el.text(),
});
}
});
return { locationCategs, professionCategs };
},
};
export const jobDetailMethods = {
parseSalaryText: (salaryText: string | null): ProfesiaSkJobOfferSalaryFields => {
// Try to parse texts like "Od 6,5 EUR/hod."
let parsedSalary = salaryText?.match(/^[a-z]*\s*(?<lowVal>[\d, ]+)\s*(?<curr>[\w\p{L}\p{M}\p{Zs}]+)\/(?<period>\w+)/iu); // prettier-ignore
// Try to parse texts like "35 000 - 45 000 Kč/mesiac"
if (!parsedSalary) parsedSalary = salaryText?.match(/^(?<lowVal>[\d,. ]+)\s*-\s*(?<upVal>[\d,. ]+)(?<curr>[\w\p{L}\p{M}\p{Zs}]+)\/(?<period>\w+)/iu); // prettier-ignore
const { groups } = parsedSalary || { groups: { lowVal: '', upVal: '', curr: '', period: '' } }; // prettier-ignore
const { lowVal, upVal, curr, period } = groups || {};
const salaryRangeLower = lowVal != null ? Number.parseInt(lowVal.replace(/\s/g, '')) : null;
const salaryRangeUpper = upVal != null ? Number.parseInt(upVal.replace(/\s/g, '')) : null;
const salaryPeriod = period === 'hod'
? SALARY_PERIOD_ENUM.hour
: period === 'mesiac'
? SALARY_PERIOD_ENUM.month
: period; // prettier-ignore
return {
salaryRange: salaryText || null,
salaryRangeLower: Number.isNaN(salaryRangeLower) ? null : salaryRangeLower,
salaryRangeUpper: Number.isNaN(salaryRangeUpper) ? null : salaryRangeUpper,
salaryCurrency: curr?.toLocaleLowerCase() || null,
salaryPeriod: salaryPeriod || null,
};
},
};