/**
 * WP BnB Admin JavaScript
 *
 * @package Magdev\WpBnb
 */

(function($) {
	'use strict';

	/**
	 * Initialize license management functionality.
	 */
	function initLicenseManagement() {
		var $validateBtn = $('#wp-bnb-validate-license');
		var $activateBtn = $('#wp-bnb-activate-license');
		var $spinner = $('#wp-bnb-license-spinner');
		var $message = $('#wp-bnb-license-message');

		if (!$validateBtn.length) {
			return;
		}

		// Validate license button click.
		$validateBtn.on('click', function(e) {
			e.preventDefault();
			performLicenseAction('wp_bnb_validate_license', wpBnbAdmin.i18n.validating);
		});

		// Activate license button click.
		$activateBtn.on('click', function(e) {
			e.preventDefault();
			performLicenseAction('wp_bnb_activate_license', wpBnbAdmin.i18n.activating);
		});

		/**
		 * Perform a license AJAX action.
		 *
		 * @param {string} action      AJAX action name.
		 * @param {string} loadingText Loading text to display.
		 */
		function performLicenseAction(action, loadingText) {
			// Disable buttons and show spinner.
			$validateBtn.prop('disabled', true);
			$activateBtn.prop('disabled', true);
			$spinner.addClass('is-active');
			$message.hide();

			$.ajax({
				url: wpBnbAdmin.ajaxUrl,
				type: 'POST',
				data: {
					action: action,
					nonce: wpBnbAdmin.nonce
				},
				success: function(response) {
					$spinner.removeClass('is-active');
					$validateBtn.prop('disabled', false);
					$activateBtn.prop('disabled', false);

					if (response.success) {
						showMessage('success', response.data.message);
						// Reload page after short delay to show updated status.
						setTimeout(function() {
							window.location.reload();
						}, 1500);
					} else {
						showMessage('error', response.data.message || wpBnbAdmin.i18n.error);
					}
				},
				error: function() {
					$spinner.removeClass('is-active');
					$validateBtn.prop('disabled', false);
					$activateBtn.prop('disabled', false);
					showMessage('error', wpBnbAdmin.i18n.error);
				}
			});
		}

		/**
		 * Show a message.
		 *
		 * @param {string} type    Message type (success or error).
		 * @param {string} message Message text.
		 */
		function showMessage(type, message) {
			$message
				.removeClass('success error')
				.addClass(type)
				.text(message)
				.fadeIn();
		}
	}

	/**
	 * Initialize room gallery functionality.
	 */
	function initRoomGallery() {
		var $container = $('#bnb-room-gallery');
		var $addButton = $('#bnb-add-gallery-images');
		var $input = $('#bnb_room_gallery');
		var $imagesContainer = $container.find('.bnb-gallery-images');

		if (!$addButton.length) {
			return;
		}

		// Media frame for selecting images.
		var mediaFrame;

		// Add images button click.
		$addButton.on('click', function(e) {
			e.preventDefault();

			// If frame exists, reopen it.
			if (mediaFrame) {
				mediaFrame.open();
				return;
			}

			// Create media frame.
			mediaFrame = wp.media({
				title: wpBnbAdmin.i18n.selectImages,
				button: {
					text: wpBnbAdmin.i18n.addToGallery
				},
				multiple: true,
				library: {
					type: 'image'
				}
			});

			// Handle selection.
			mediaFrame.on('select', function() {
				var selection = mediaFrame.state().get('selection');
				selection.each(function(attachment) {
					var data = attachment.toJSON();
					var thumbnail = data.sizes.thumbnail ? data.sizes.thumbnail.url : data.url;

					// Check if already in gallery.
					if ($imagesContainer.find('[data-id="' + data.id + '"]').length) {
						return;
					}

					// Add image to gallery.
					var $image = $('<div class="bnb-gallery-image" data-id="' + data.id + '">' +
						'<img src="' + thumbnail + '" alt="">' +
						'<button type="button" class="bnb-remove-image">&times;</button>' +
						'</div>');
					$imagesContainer.append($image);
				});

				updateGalleryInput();
			});

			mediaFrame.open();
		});

		// Remove image button click.
		$imagesContainer.on('click', '.bnb-remove-image', function(e) {
			e.preventDefault();
			$(this).closest('.bnb-gallery-image').remove();
			updateGalleryInput();
		});

		// Make gallery sortable.
		$imagesContainer.sortable({
			items: '.bnb-gallery-image',
			cursor: 'move',
			update: function() {
				updateGalleryInput();
			}
		});

		/**
		 * Update the hidden input with gallery image IDs.
		 */
		function updateGalleryInput() {
			var ids = [];
			$imagesContainer.find('.bnb-gallery-image').each(function() {
				ids.push($(this).data('id'));
			});
			$input.val(ids.join(','));
		}
	}

	/**
	 * Initialize pricing settings functionality.
	 */
	function initPricingSettings() {
		var $midTermInput = $('#wp_bnb_mid_term_max_nights');
		var $longTermMin = $('#wp-bnb-long-term-min');

		if (!$midTermInput.length || !$longTermMin.length) {
			return;
		}

		// Update long-term minimum display when mid-term max changes.
		$midTermInput.on('input', function() {
			$longTermMin.text($(this).val());
		});
	}

	/**
	 * Initialize season form validation.
	 */
	function initSeasonForm() {
		var $form = $('.bnb-season-form');

		if (!$form.length) {
			return;
		}

		// Validate date format on input.
		$form.find('#season_start_date, #season_end_date').on('input', function() {
			var value = $(this).val();
			var isValid = /^\d{2}-\d{2}$/.test(value);

			if (value.length > 0 && !isValid) {
				$(this).css('border-color', '#d63638');
			} else {
				$(this).css('border-color', '');
			}
		});

		// Validate modifier range.
		$form.find('#season_modifier').on('input', function() {
			var value = parseFloat($(this).val());
			var $preview = $(this).siblings('.bnb-modifier-preview');

			if ($preview.length === 0) {
				$preview = $('<span class="bnb-modifier-preview"></span>');
				$(this).after($preview);
			}

			if (!isNaN(value) && value > 0) {
				var percentage = ((value - 1) * 100).toFixed(0);
				var text = '';
				if (percentage > 0) {
					text = '+' + percentage + '% ' + (wpBnbAdmin.i18n.increase || 'increase');
					$preview.css('color', '#d63638');
				} else if (percentage < 0) {
					text = percentage + '% ' + (wpBnbAdmin.i18n.discount || 'discount');
					$preview.css('color', '#00a32a');
				} else {
					text = wpBnbAdmin.i18n.normalPrice || 'Normal price';
					$preview.css('color', '#646970');
				}
				$preview.text(' = ' + text);
			} else {
				$preview.text('');
			}
		}).trigger('input');
	}

	/**
	 * Initialize pricing meta box interactions.
	 */
	function initPricingMetaBox() {
		var $pricingTable = $('.bnb-pricing-table');

		if (!$pricingTable.length) {
			return;
		}

		// Highlight empty required prices.
		$pricingTable.find('input[type="number"]').on('blur', function() {
			var $input = $(this);
			var value = $input.val();
			var isShortTerm = $input.attr('id').indexOf('short_term') !== -1;

			// Short-term price is recommended.
			if (isShortTerm && (value === '' || parseFloat(value) <= 0)) {
				$input.css('background-color', '#fcf0f1');
			} else {
				$input.css('background-color', '');
			}
		});
	}

	// Initialize on document ready.
	$(document).ready(function() {
		initLicenseManagement();
		initRoomGallery();
		initPricingSettings();
		initSeasonForm();
		initPricingMetaBox();
	});

})(jQuery);