/* global d3 */

function loadData(actions) {
  const numericColumns = [
    'acceleration',
    'cylinders',
    'displacement',
    'horsepower',
    'weight',
    'year',
    'mpg'
  ]

  const ordinalColumns = ['cylinders', 'origin', 'year']

  setTimeout(() => {
    // Show off the spinner for a few seconds ;)
    d3.csv('auto-mpg.csv', type, data => {
      actions.ingestData(data, numericColumns, ordinalColumns)
    })
  }, 2000)

  function type(d) {
    return numericColumns.reduce((d, column) => {
      d[column] = +d[column]
      return d
    }, d)
  }
}