<?php
/**
 * @file classes/components/form/context/PKPDateTimeForm.inc.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class PKPDateTimeForm
 * @ingroup classes_controllers_form
 *
 * @brief A preset form for presenting date and time on the frontend
 */
namespace PKP\components\forms\context;
use PKP\components\forms\FieldRadioInput;
use \PKP\components\forms\FormComponent;

define('FORM_DATE_TIME', 'dateTime');

class PKPDateTimeForm extends FormComponent {
	/** @copydoc FormComponent::$id */
	public $id = FORM_DATE_TIME;

	/** @copydoc FormComponent::$method */
	public $method = 'PUT';

	/**
	 * Constructor
	 *
	 * @param $action string URL to submit the form to
	 * @param $locales array Supported locales
	 * @param $context \Context Journal or Press to change settings for
	 */
	public function __construct($action, $locales, $context) {
		$this->action = $action;
		$this->locales = $locales;

		$localizedOptions = []; // template for localized options to be used for date and time format
		foreach ($this->locales as $key => $localeValue) {
			$localizedOptions[$localeValue['key']] = $key;
		}

		$this->addGroup([
				'id' => 'descriptions',
				'label' => __('manager.setup.dateTime.descriptionTitle'),
				'description' => __('manager.setup.dateTime.description'),
			])
			//The default date format to use in the editorial and reader interfaces.
			->addField(new FieldRadioInput('dateFormatLong', [
				'label' => __('manager.setup.dateTime.longDate'),
				'isMultilingual' => true,
				'options' => $this->_setDateOptions([
					'%B %e, %Y',
					'%B %e %Y',
					'%e %B %Y',
					'%Y %B %e',
				]),
				'value' => $context->getDateTimeFormats('dateFormatLong'),
				'groupId' => 'descriptions',
			]))
			// A brief date format that is used when there is less space for the full date.
			->addField(new FieldRadioInput('dateFormatShort', [
				'label' => __('manager.setup.dateTime.shortDate'),
				'isMultilingual' => true,
				'options' => $this->_setDateOptions([
					'%Y-%m-%d',
					'%d-%m-%Y',
					'%m/%d/%Y',
					'%d.%m.%Y',
				]),
				'value' => $context->getDateTimeFormats('dateFormatShort'),
				'groupId' => 'descriptions',

			]))
			->addField(new FieldRadioInput('timeFormat', [
				'label' => __('manager.setup.dateTime.time'),
				'isMultilingual' => true,
				'options' => $this->_setDateOptions([
					'%H:%M',
					'%I:%M %p',
					'%l:%M%P',
				]),
				'value' => $context->getDateTimeFormats('timeFormat'),
				'groupId' => 'descriptions',
			]))
			->addField(new FieldRadioInput('datetimeFormatLong', [
				'label' => __('manager.setup.dateTime.longDateTime'),
				'isMultilingual' => true,
				'options' => array_map(function ($value) use ($context, $localizedOptions) {
					$locale = array_search($value, $localizedOptions);
					$optionValue = $context->getLocalizedDateFormatLong($locale) . ' - ' . $context->getLocalizedTimeFormat($locale);
					return [
						[
							'value' => $optionValue,
							'label' => $optionValue,
						],
						[
							'isInput' => true,
							'label' => __('manager.setup.dateTime.custom'),
						]
					];
				}, $localizedOptions),
				'value' => $context->getDateTimeFormats('datetimeFormatLong'),
				'groupId' => 'descriptions',
			]))
			->addField(new FieldRadioInput('datetimeFormatShort', [
				'label' => __('manager.setup.dateTime.shortDateTime'),
				'isMultilingual' => true,
				'options' => array_map(function ($value) use ($context, $localizedOptions) {
					$locale = array_search($value, $localizedOptions);
					$optionValue = $context->getLocalizedDateFormatShort($locale) . ' ' . $context->getLocalizedTimeFormat($locale);
					return [
						[
							'value' => $optionValue,
							'label' => $optionValue,
						],
						[
							'isInput' => true,
							'label' => __('manager.setup.dateTime.custom'),
						]
					];
				}, $localizedOptions),
				'value' => $context->getDateTimeFormats('datetimeFormatShort'),
				'groupId' => 'descriptions',
			]));
	}

	/**
	 * Set localized options for date/time fields
	 *
	 * @param $optionValues array options to pass to the field
	 * @return array
	 */
	private function _setDateOptions($optionValues) {
		$options = [];
		foreach ($this->locales as $localeValue) {
			$locale = $localeValue['key'];
			foreach ($optionValues as $optionValue) {
				$options[$locale][] = [
					'value' => $optionValue,
					'label' => $optionValue
				];
			}

			$options[$locale][] = [
				'isInput' => true,
				'label' => __('manager.setup.dateTime.custom'),
			];
		}
		return $options;
	}
}