i2b2.service.js
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	import * as _ from 'ramda';
	import {Container} from './container';

	export class I2B2Service {
	constructor(context = window) {

	//private
	const ctx = Container.of(context);
	const prop = _.curry((el, c) => c.value? Container.of(_.prop(el, c.value)) : Container.of(null));
	const i2b2 = _.compose(prop('i2b2'), prop('window'), prop('parent'));
	const crc = _.compose(prop('CRC'), i2b2);
	const events = _.compose(prop('events'), i2b2);
	const shrine = _.compose(prop('SHRINE'), i2b2);

	// -- @todo: makes assumption that i2b2 object conforms to predictable structure? -- //
	this.onResize = f => events(ctx).map((v) => v.changedZoomWindows.subscribe(f));
	this.onHistory = f => crc(ctx).map((v) => v.ctrlr.history.events.onDataUpdate.subscribe(f));
	this.onQuery = f => events(ctx).map((v) => v.afterQueryInit.subscribe(f));
	this.loadHistory = () => crc(ctx).map((v) => v.view.history.doRefreshAll());
	this.loadQuery = id => crc(ctx).map((v) => v.ctrlr.QT.doQueryLoad(id));
	this.errorDetail = d => shrine(ctx).map((v) => v.plugin.errorDetail(d));
	}
	}