45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
import { Observable } from 'rx';
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import { createErrorObservable } from '../../common/app/redux';
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import capitalize from 'lodash/capitalize';
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// analytics types
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// interface social {
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// network: String, // facebook, twitter, etc
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// action: String, // like, favorite, etc
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// target: String // url like fcc.com or any other string
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// }
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// interface event {
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// category: String,
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// action: String,
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// label?: String,
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// value?: String
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// }
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//
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const types = [ 'event', 'social' ];
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function formatFields({ type, ...fields }) {
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// make sure type is supported
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if (!types.some(_type => _type === type)) {
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return null;
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}
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return Object.keys(fields).reduce((_fields, field) => {
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_fields[ type + capitalize(field) ] = fields[ field ];
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return _fields;
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}, { type });
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}
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export default function analyticsSaga(actions, _, { window }) {
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const { ga } = window;
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if (typeof ga !== 'function') {
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console.log('GA not found');
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return Observable.empty();
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}
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return actions
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.filter(({ meta }) => !!(meta && meta.analytics && meta.analytics.type))
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.map(({ meta: { analytics } }) => formatFields(analytics))
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.filter(Boolean)
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// ga always returns undefined
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.map(({ type, ...fields }) => ga('send', type, fields))
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.ignoreElements()
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.catch(createErrorObservable);
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}
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