Files
myep/assets/controllers/birthday_controller.js
T

60 lines
1.8 KiB
JavaScript

import { Controller } from '@hotwired/stimulus'
/**
* Monitors birthday input fields (day, month, year) and dispatches a custom event
* only when all three fields are filled with valid values.
*
* This prevents premature HTMX refreshes when users are still entering the date,
* improving UX by waiting until the complete date is entered.
*/
export default class extends Controller {
static targets = ['day', 'month', 'year']
/**
* Checks if all birthday fields are filled and dispatches a completion event.
*
* Called on input/change events from the day, month, and year fields.
* Only dispatches the 'birthday:complete' event when all three fields
* contain valid values that could form a complete date.
*/
check() {
const day = this.dayTarget.value.trim()
const month = this.monthTarget.value.trim()
const year = this.yearTarget.value.trim()
if (false === this.isComplete(day, month, year)) {
return
}
this.element.dispatchEvent(new CustomEvent('birthday:complete', { bubbles: true }))
}
/**
* Validates that all date components are filled with plausible values.
*
* @param {string} day The day value
* @param {string} month The month value
* @param {string} year The year value
*
* @returns {boolean} True if all fields contain complete values
*/
isComplete(day, month, year) {
// Day: 1-2 digits
if (0 === day.length || day.length > 2) {
return false
}
// Month: 1-2 digits
if (0 === month.length || month.length > 2) {
return false
}
// Year: exactly 4 digits for a complete year
if (4 !== year.length) {
return false
}
return true
}
}