/*global wc_address_i18n_params */
jQuery( function( $ ) {

		// wc_address_i18n_params is required to continue, ensure the object exists
		if ( typeof wc_address_i18n_params === 'undefined' ) {
			return false;
		}

		var locale_json = wc_address_i18n_params.locale.replace( /&quot;/g, '"' ),
			locale = $.parseJSON( locale_json );

			function field_is_required( field, is_required ) {
				if ( is_required ) {
					field.find( 'label .optional' ).remove();
					field.addClass( 'validate-required' );

					if ( field.find( 'label .required' ).length === 0 ) {
						field.find( 'label' ).append( '&nbsp;<abbr class="required" title="' + wc_address_i18n_params.i18n_required_text + '">*</abbr>' );
					}
				} else {
					field.find( 'label .required' ).remove();
					field.removeClass( 'validate-required' );

					if ( field.find( 'label .optional' ).length === 0 ) {
						field.find( 'label' ).append( '&nbsp;<span class="optional">(' + wc_address_i18n_params.i18n_optional_text + ')</span>' );
					}
				}
			}

		$( document.body )

			// Handle locale
			.bind( 'country_to_state_changing', function( event, country, wrapper ) {

				var thisform = wrapper, thislocale;

				if ( typeof locale[ country ] !== 'undefined' ) {
					thislocale = locale[ country ];
				} else {
					thislocale = locale['default'];
				}

				var $postcodefield = thisform.find( '#billing_postcode_field, #shipping_postcode_field' ),
					$cityfield     = thisform.find( '#billing_city_field, #shipping_city_field' ),
					$statefield    = thisform.find( '#billing_state_field, #shipping_state_field' );

				if ( ! $postcodefield.attr( 'data-o_class' ) ) {
					$postcodefield.attr( 'data-o_class', $postcodefield.attr( 'class' ) );
					$cityfield.attr( 'data-o_class', $cityfield.attr( 'class' ) );
					$statefield.attr( 'data-o_class', $statefield.attr( 'class' ) );
				}

				var locale_fields = $.parseJSON( wc_address_i18n_params.locale_fields );

				$.each( locale_fields, function( key, value ) {

					var field       = thisform.find( value ),
						fieldLocale = $.extend( true, {}, locale['default'][ key ], thislocale[ key ] );

					// Labels.
					if ( typeof fieldLocale.label !== 'undefined' ) {
						field.find( 'label' ).html( fieldLocale.label );
					}

					// Placeholders.
					if ( typeof fieldLocale.placeholder !== 'undefined' ) {
						field.find( 'input' ).attr( 'placeholder', fieldLocale.placeholder );
						field.find( '.select2-selection__placeholder' ).text( fieldLocale.placeholder );
					}

					// Use the i18n label as a placeholder if there is no label element and no i18n placeholder.
					if ( typeof fieldLocale.placeholder === 'undefined' && typeof fieldLocale.label !== 'undefined' && ! field.find( 'label' ).length ) {
						field.find( 'input' ).attr( 'placeholder', fieldLocale.label );
						field.find( '.select2-selection__placeholder' ).text( fieldLocale.label );
					}

					// Required.
					if ( typeof fieldLocale.required !== 'undefined' ) {
						field_is_required( field, fieldLocale.required );
					} else {
						field_is_required( field, false );
					}

					// Priority.
					if ( typeof fieldLocale.priority !== 'undefined' ) {
						field.data( 'priority', fieldLocale.priority );
					}

					// Hidden fields.
					if ( 'state' !== key ) {
						if ( typeof fieldLocale.hidden !== 'undefined' && true === fieldLocale.hidden ) {
							field.hide().find( 'input' ).val( '' );
						} else {
							field.show();
						}
					}
				});

				var fieldsets = $('.woocommerce-billing-fields__field-wrapper, .woocommerce-shipping-fields__field-wrapper, .woocommerce-address-fields__field-wrapper, .woocommerce-additional-fields__field-wrapper .woocommerce-account-fields');

				fieldsets.each( function( index, fieldset ) {
					var rows    = $( fieldset ).find( '.form-row' );
					var wrapper = rows.first().parent();

					// Before sorting, ensure all fields have a priority for bW compatibility.
					var last_priority = 0;

					rows.each( function() {
						if ( ! $( this ).data( 'priority' ) ) {
							 $( this ).data( 'priority', last_priority + 1 );
						}
						last_priority = $( this ).data( 'priority' );
					} );

					// Sort the fields.
					rows.sort( function( a, b ) {
						var asort = $( a ).data( 'priority' ),
							bsort = $( b ).data( 'priority' );

						if ( asort > bsort ) {
							return 1;
						}
						if ( asort < bsort ) {
							return -1;
						}
						return 0;
					});

					rows.detach().appendTo( wrapper );
				} );
			});
	});
