/**
 * WooCommerce Email Discount Manager — admin scripts.
 */
( function( $ ) {
	'use strict';

	$( function() {

		// ---------------------------------------------------------------
		// Drag & drop sorting (categories + shipping methods).
		// ---------------------------------------------------------------
		$( '.wc-edm-sortable' ).sortable( {
			handle: '.wc-edm-drag-handle',
			axis: 'y',
			placeholder: 'wc-edm-sortable-placeholder',
			forcePlaceholderSize: true
		} );

		// ---------------------------------------------------------------
		// Group edit: add / remove categories.
		// ---------------------------------------------------------------
		var $categorySelect = $( '#wc-edm-category-select' );
		var $categoryList   = $( '#wc-edm-selected-categories' );

		$( '#wc-edm-add-category' ).on( 'click', function() {
			var $option = $categorySelect.find( 'option:selected' );
			var id      = $option.val();
			var name    = $option.text().trim();

			if ( ! id || $option.prop( 'disabled' ) ) {
				return;
			}

			var $item = $( '<li>' )
				.attr( 'data-id', id )
				.append( $( '<span>' ).addClass( 'dashicons dashicons-menu wc-edm-drag-handle' ) )
				.append( $( '<span>' ).addClass( 'wc-edm-item-label' ).text( name ) )
				.append( $( '<button>' ).attr( 'type', 'button' ).addClass( 'wc-edm-remove-category' ).html( '&times;' ) )
				.append( $( '<input>' ).attr( { type: 'hidden', name: 'category_ids[]' } ).val( id ) );

			$categoryList.append( $item );
			$option.prop( 'disabled', true );
			$categorySelect.val( '' );
		} );

		$categoryList.on( 'click', '.wc-edm-remove-category', function() {
			var $item = $( this ).closest( 'li' );
			var id    = String( $item.data( 'id' ) );

			$categorySelect.find( 'option[value="' + id + '"]' ).prop( 'disabled', false );
			$item.remove();
		} );

		// ---------------------------------------------------------------
		// Email edit: toggle fields for the selected assignment type.
		// ---------------------------------------------------------------
		function toggleAssignmentFields() {
			var type = $( '#wc-edm-assignment-type input[name="assignment_type"]:checked' ).val();

			$( '.wc-edm-type-fields' ).each( function() {
				$( this ).toggle( $( this ).data( 'type' ) === type );
			} );
		}

		if ( $( '#wc-edm-assignment-type' ).length ) {
			toggleAssignmentFields();
			$( '#wc-edm-assignment-type' ).on( 'change', 'input[name="assignment_type"]', toggleAssignmentFields );
		}

		// ---------------------------------------------------------------
		// Confirm before deleting.
		// ---------------------------------------------------------------
		$( document ).on( 'click', '.wc-edm-delete', function( e ) {
			if ( ! window.confirm( wcEdmAdmin.confirmDelete ) ) {
				e.preventDefault();
			}
		} );

		// ---------------------------------------------------------------
		// Shipping tab: auto-submit the group selector on change.
		// ---------------------------------------------------------------
		$( '#wc-edm-shipping-group' ).on( 'change', function() {
			$( this ).closest( 'form' ).trigger( 'submit' );
		} );
	} );

}( jQuery ) );