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import { readDataSync } from 'indian-ocean';

import * as aq from 'arquero';

import * as Plot from '@observablehq/plot';

import { plotObservable, createDocument } from '../index.js';

const events = readDataSync('./test/data/purchase_data.csv');

const data = aq

.from(events)

.derive({ date: aq.escape(d => new Date(d.date.split('T')[0])) })

.groupby('date', 'brand')

.rollup({ value: d => aq.op.sum(d.price_in_usd) })

.orderby('date', 'brand')

.objects();

const chart = Plot.plot({

document: createDocument(),

marks: [

Plot.line(data, {

x: 'date',

y: 'value',

stroke: 'brand',

strokeWidth: 2,

curve: 'linear'

})

],

width: 554,

height: 130,

x: { ticks: 3 },

marginLeft: 50,

color: {

legend: true,

width: 554,

columns: '120px'

}

});

await plotObservable(chart);