import TimeAgo from 'javascript-time-ago'

import en from 'javascript-time-ago/locale/en'
import ru from 'javascript-time-ago/locale/ru'

TimeAgo.addDefaultLocale(en)
TimeAgo.addLocale(ru)

import React from 'react'
import ReactTimeAgo from 'react-time-ago'

export default function LastSeen({ date }) {
  return (
    <div>
      Last seen: <ReactTimeAgo date={date} locale="en-US"/>
    </div>
  )
}

<ReactTimeAgo date={date} locale="en-US" timeStyle="twitter"/>

import React from 'react'
import PropTypes from 'prop-types'
import ReactTimeAgo from 'react-time-ago'

export default function TimeAgo(props) {
  return <ReactTimeAgo {...props} component={Time}/>
}

function Time({ date, verboseDate, tooltip, children, ...rest }) {
  return <Text>{children}</Text>
}

Time.propTypes = {
  date: PropTypes.instanceOf(Date).isRequired,
  verboseDate: PropTypes.string,
  tooltip: PropTypes.bool.isRequired,
  children: PropTypes.string.isRequired
}

import React from 'react'
import PropTypes from 'prop-types'
import Tooltip from 'react-responsive-ui/commonjs/Tooltip'
import ReactTimeAgo from 'react-time-ago'
import 'react-time-ago/Tooltip.css'

export default function ReactTimeAgoWithTooltip(props) {
  return (
    <ReactTimeAgo
      {...props}
      wrapperComponent={TooltipContainer}
      tooltip={false}/>
  )
}

const TooltipContainer = ({ verboseDate, children, ...rest }) => (
  <Tooltip {...rest} content={verboseDate}>
    {children}
  </Tooltip>
)

TooltipContainer.propTypes = {
  // `verboseDate` is not generated on server side
  // (because tooltips are only shown on mouse over),
  // so it's not declared a "required" property.
  verboseDate: PropTypes.string,
  children: PropTypes.node.isRequired
}

<ReactTimeAgo future date={date} .../>

// The `date` (or `timestamp`).
// E.g. `new Date()` or `1355972400000`.
date: PropTypes.oneOfType([
  PropTypes.instanceOf(Date),
  PropTypes.number
]).isRequired,

// Preferred locale.
// Is 'en' by default.
// E.g. 'ru-RU'.
locale: PropTypes.string,

// Alternatively to `locale`, one could pass `locales`:
// A list of preferred locales (ordered).
// Will choose the first supported locale from the list.
// E.g. `['ru-RU', 'en-GB']`.
locales: PropTypes.arrayOf(PropTypes.string),

// If set to `true`, then will stop at "zero point"
// when going from future dates to past dates.
// In other words, even if the `date` has passed,
// it will still render as if `date` is `now`.
future: PropTypes.bool,

// Date/time formatting style.
// See `javascript-time-ago` docs on "Styles" for more info.
// E.g. 'round', 'round-minute', 'twitter', 'twitter-first-minute'.
timeStyle: PropTypes.oneOfType([
  PropTypes.string,
  PropTypes.object
]),

// `round` parameter of `javascript-time-ago`.
// See `javascript-time-ago` docs on "Rounding" for more info.
// Examples: "round", "floor".
round: PropTypes.string,

// A React component to render the relative time label.
// Receives properties:
// * date: Date — The date.
// * verboseDate: string? — Formatted verbose date. Is always present on client, is always `undefined` on server (because tooltips aren't shown on server).
// * tooltip: boolean — The `tooltip` property of `<ReactTimeAgo/>` component.
// * children: string — The relative time label.
// * All "unknown" properties that have been passed to `<ReactTimeAgo/>` are passed through to this component.
component: PropTypes.elementType.isRequired,

// Whether to use HTML `tooltip` attribute to show a verbose date tooltip.
// Is `true` by default.
// Can be set to `false` to disable the native HTML `tooltip`.
tooltip: PropTypes.bool.isRequired,

// Verbose date formatter.
// By default it's `(date) => new Intl.DateTimeFormat(locale, {…}).format(date)`.
formatVerboseDate: PropTypes.func,

// `Intl.DateTimeFormat` format for formatting verbose date.
// See `Intl.DateTimeFormat` docs for more info.
verboseDateFormat: PropTypes.object,

// (advanced)
// A React Component to wrap the resulting `<time/>` React Element.
// Receives `verboseDate` and `children` properties.
// Also receives `wrapperProps`, if they're passed.
// `verboseDate` can be used for displaying verbose date label
// in an "on mouse over" (or "on touch") tooltip.
// See the "Tooltip" readme section for more info.
// Another example could be having `wrapperComponent`
// being rerendered every time the component refreshes itself.
wrapperComponent: PropTypes.func,

// Custom `props` passed to `wrapperComponent`.
wrapperProps: PropTypes.object