///// !!! home.php !!! /////



// Target the input fields to be updated
let startDate = document.querySelector('input[name=start]');
let endDate = document.querySelector('input[name=end]');
let duration = document.querySelector('input[name=duration]');



// For new experiences, the minimum start date is tomorrow and the maximum is a year from tomorrow
function setStartDateRange() {

	/* Compute the today, tomorrow and the year after tomorrow */
// 	let today = new Date();
// 	today.setHours(0, 0, 0, 0); // (default to 00:00:00)
// 	let tomorrow = new Date(today);
// 	tomorrow.setDate(tomorrow.getDate() + 1);
// 	let aYearFromTomorrow = new Date(tomorrow);
// 	aYearFromTomorrow.setDate(aYearFromTomorrow.getDate() + 365);

	// Set minimum start date to tomorrow
// 	startDate.min = tomorrow.toLocaleDateString();
	
	// Set maximum start date to a year from tomorrow
// 	startDate.max = aYearFromTomorrow.toLocaleDateString();

	if(!isNaN(Date.parse(startDate.value)) && !isNaN(Date.parse(endDate.value))) {
		if(Date.parse(startDate.value) > Date.parse(endDate.value)) {
			endDate.value = startDate.value;
		}
	}
	
}



// For new experiences, the minimum end date is the day after the start date and the maximum is a year from the minimum end date
function setEndDateRange() {
	
	/* Compute the day after the start date value, and the year after that */
// 	let dayAfterStart = new Date(startDate.value);
// 	dayAfterStart.setDate(dayAfterStart.getDate() + 1 + 1); // (additional 1 necessary because of line above, apparent 0-indexing)
// 	let aYearFromMinimumEnd = new Date(dayAfterStart);
// 	aYearFromMinimumEnd.setDate(aYearFromMinimumEnd.getDate() + 365);
	
	// Set minimum end date to the day after the start date
// 	endDate.min = dayAfterStart.toLocaleDateString();
	
	// Set maximum end date to a year from the minimum end date
// 	endDate.max = aYearFromMinimumEnd.toLocaleDateString();

	if(!isNaN(Date.parse(startDate.value)) && !isNaN(Date.parse(endDate.value))) {
		if(Date.parse(startDate.value) > Date.parse(endDate.value)) {
			startDate.value = endDate.value;
		}
	}

}



// For new experiences, the duration (in weeks) will be the rounded weeks from start to end dates
function setDuration() {

	// Calculate the duration in weeks
	x = new Date(startDate.value);
	x.setDate(x.getDate() + 1); // (additional 1 necessary because of line above, apparent 0-indexing)
	y = new Date(endDate.value);
	y.setDate(y.getDate() + 1); // (additional 1 necessary because of line above, apparent 0-indexing)
	
	duration.value = String(Math.max(Math.round((y - x) / 604800000), 0)); // (1000 * 60 * 60 * 24 * 7 = 604800000)

}