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| // Dependencies.
import React from 'react'
import PropTypes from 'prop-types'
// Utility methods.
import {
bind,
exists,
formatDate,
trim
} from '@t7/utils'
// UI components.
import { Input } from '../'
// Date formats.
const DD_MM_YYYY = 'DD/MM/YYYY'
const MM_DD_YYYY = 'MM/DD/YYYY'
const MM_DD_YYYY_TO_API = '$3-$1-$2'
const MM_DD_YYYY_TO_UI = '$2/$3/$1'
const DD_MM_YYYY_TO_API = '$3-$2-$1'
const DD_MM_YYYY_TO_UI = '$3/$2/$1'
const FORMAT_FROM_API = /^(\d{4})-(\d{2})-(\d{2})/
const FORMAT_FROM_UI = /^(\d{2})\/(\d{2})\/(\d{4})/
const CONVERT_TO_API = {
[DD_MM_YYYY]: DD_MM_YYYY_TO_API,
[MM_DD_YYYY]: MM_DD_YYYY_TO_API
}
const CONVERT_TO_UI = {
[DD_MM_YYYY]: DD_MM_YYYY_TO_UI,
[MM_DD_YYYY]: MM_DD_YYYY_TO_UI
}
const PLACEHOLDER_FORMAT = {
[DD_MM_YYYY]: DD_MM_YYYY,
[MM_DD_YYYY]: MM_DD_YYYY
}
// =============== //
// =============== //
// Helper methods. //
// =============== //
// =============== //
/*
NOTE: We're using a helper class here,
because we cannot call `this.*` from
within `getDerivedStateFromProps`.
*/
class that {
// Convert to API.
static convertToApiValue (value = '', dateFormat) {
// Regex.
const BEFORE = FORMAT_FROM_UI
const AFTER = CONVERT_TO_API[dateFormat]
// Format?
let apiValue = (
BEFORE.test(value)
? value.replace(BEFORE, AFTER)
: ''
)
// Invalid?
if (!that.isValidDate(apiValue)) {
apiValue = ''
}
// Expose string.
return apiValue
}
// Convert to UI.
static convertToUiValue (value = '', dateFormat) {
// Trim to 10 characters.
value = trim(value).slice(0, 10)
// Regex.
const BEFORE = FORMAT_FROM_API
const AFTER = CONVERT_TO_UI[dateFormat]
// Format to "MM/DD/YYYY".
value = value.replace(BEFORE, AFTER)
// Expose string.
return value
}
// Error message.
static getErrorMessage (value = '', dateFormat) {
// From API to UI format.
value =
that.convertToUiValue(value, dateFormat)
// Clean up.
value =
formatDate(value)
// From UI to API format.
const apiValue =
that.convertToApiValue(value, dateFormat)
// Valid date?
const isValidDate =
that.isValidDate(apiValue)
// Set in conditional.
let errorMessage = ''
if (
!isValidDate &&
value.length === 10
) {
errorMessage = 'Date is invalid'
}
// Expose string.
return errorMessage
}
// Valid date?
static isValidDate (x = '') {
// Get date.
const date = new Date(x)
const bool = !isNaN(date.getTime())
// Expose boolean
return bool
}
}
// ============= //
// ============= //
// Define class. //
// ============= //
// ============= //
class InputDate extends React.Component {
constructor (props) {
// Pass `props` into scope.
super(props)
// Bind context.
bind(this)
// Get default state.
this.defaultState()
}
// Set default state.
defaultState () {
// Props.
const {
dateFormat,
value,
errorMessage: propsErrorMessage
} = this.props
// Error message.
const errorMessage = (
propsErrorMessage ||
that.getErrorMessage(value, dateFormat)
)
// Update.
this.state = {
errorMessage,
oldValue: value
}
}
// Update state.
static getDerivedStateFromProps (props = {}, state = {}) {
// State.
const {
oldValue,
errorMessage: oldErrorMessage
} = state
// Props.
const {
dateFormat,
value,
errorMessage: propsErrorMessage
} = props
// New error.
const newErrorMessage =
that.getErrorMessage(value, dateFormat)
// Set in conditional.
let newState = null
// Update?
if (propsErrorMessage) {
newState = {
errorMessage: propsErrorMessage
}
} else if (
value !== oldValue &&
exists(newErrorMessage) &&
newErrorMessage !== oldErrorMessage
) {
newState = {
errorMessage: newErrorMessage
}
}
// Expose object.
return newState
}
// Change event.
handleChange (e, value = '') {
// Props.
const {
dateFormat,
errorMessage: propsErrorMessage
} = this.props
// Get API value.
const apiValue =
that.convertToApiValue(value, dateFormat)
// Get error message.
const errorMessage = (
propsErrorMessage ||
that.getErrorMessage(value, dateFormat)
)
// Update.
this.setState({ errorMessage })
// Callback.
this.props.handleChange(e, value, apiValue)
}
// Placeholder.
getPlaceholder () {
const { dateFormat } = this.props
// Expose string.
return PLACEHOLDER_FORMAT[dateFormat]
}
// Render method.
render () {
// State.
const { errorMessage } = this.state
// Props.
const { dateFormat } = this.props
let { value } = this.props
value = that.convertToUiValue(value, dateFormat)
// Placeholder.
const placeholder = this.getPlaceholder()
// Events.
const { handleChange } = this
// Expose UI.
return (
<Input
{...this.props}
errorMessage={errorMessage}
placeholder={placeholder}
value={value}
// Events.
handleChange={handleChange}
mask={formatDate}
/>
)
}
}
// Validation.
InputDate.propTypes = {
dateFormat: PropTypes.string,
errorMessage: PropTypes.string,
value: PropTypes.string,
// Events.
handleChange: PropTypes.func
}
// Defaults.
InputDate.defaultProps = {
dateFormat: DD_MM_YYYY,
// Events.
handleChange: () => {}
}
// Export.
export default InputDate
|