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Refactored VisitsParser taking advantage of reduce function

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This commit is contained in:
Alejandro Celaya 2018-08-24 23:51:33 +02:00
parent 26a3fdfd3d
commit 4924f24e1a
1 changed files with 43 additions and 52 deletions
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75
src/visits/services/VisitsParser.js
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@ -1,4 +1,4 @@
import { forEach, isNil, isEmpty } from 'ramda';
import { assoc, isNil, isEmpty, reduce } from 'ramda';
const osFromUserAgent = userAgent => {
const lowerUserAgent = userAgent.toLowerCase();
@ -41,61 +41,52 @@ const extractDomain = url => {
return domain.split(':')[0];
};
// FIXME Refactor these foreach statements which mutate a stats object
export class VisitsParser {
processOsStats = visits => {
const stats = {};
forEach(visit => {
processOsStats = visits =>
reduce(
(stats, visit) => {
const userAgent = visit.userAgent;
const os = isNil(userAgent) ? 'Others' : osFromUserAgent(userAgent);
return assoc(os, (stats[os] || 0) + 1, stats);
},
{},
visits,
);
stats[os] = typeof stats[os] === 'undefined' ? 1 : stats[os] + 1;
}, visits);
return stats;
};
processBrowserStats = visits => {
const stats = {};
forEach(visit => {
processBrowserStats = visits =>
reduce(
(stats, visit) => {
const userAgent = visit.userAgent;
const browser = isNil(userAgent) ? 'Others' : browserFromUserAgent(userAgent);
return assoc(browser, (stats[browser] || 0) + 1, stats);
},
{},
visits,
);
stats[browser] = typeof stats[browser] === 'undefined' ? 1 : stats[browser] + 1;
}, visits);
return stats;
};
processReferrersStats = visits => {
const stats = {};
forEach(visit => {
processReferrersStats = visits =>
reduce(
(stats, visit) => {
const notHasDomain = isNil(visit.referer) || isEmpty(visit.referer);
const domain = notHasDomain ? 'Unknown' : extractDomain(visit.referer);
return assoc(domain, (stats[domain]|| 0) + 1, stats);
},
{},
visits,
);
stats[domain] = typeof stats[domain] === 'undefined' ? 1 : stats[domain] + 1;
}, visits);
return stats;
};
processCountriesStats = visits => {
const stats = {};
forEach(({ visitLocation }) => {
processCountriesStats = visits =>
reduce(
(stats, { visitLocation }) => {
const notHasCountry = isNil(visitLocation)
|| isNil(visitLocation.countryName)
|| isEmpty(visitLocation.countryName);
const country = notHasCountry ? 'Unknown' : visitLocation.countryName;
stats[country] = typeof stats[country] === 'undefined' ? 1 : stats[country] + 1;
}, visits);
return stats;
};
return assoc(country, (stats[country]|| 0) + 1, stats);
},
{},
visits,
);
}
const visitsParser = new VisitsParser();