export default (context, inject) => {
  const leftPad2Digits = (val) => val < 10 ? '0' + val : '' + val

  const date = (time) => {
    if (!time) return

    const d = new Date(time * 1000)
    return `${1900 + d.getYear()}-` +
      `${leftPad2Digits(d.getMonth() + 1)}-` +
      `${leftPad2Digits(d.getDate())}`
  }

  const datetime = (time) => {
    if (!time) return

    const d = new Date(time * 1000)
    return `${date(time)}, ` +
      `${leftPad2Digits(d.getHours())}:` +
      `${leftPad2Digits(d.getMinutes())}:` +
      `${leftPad2Digits(d.getSeconds())}`
  }

  inject('formatter', {
    date,
    datetime,
  })
}