<?php
defined( 'ABSPATH' ) or die( 'No script kiddies please!' );

// include the file with the actual markup for the options to display
require( dirname( __FILE__ ) . '/dnxcf_options-display.php' );

/**
 * Register the set of options required for the plugin to work
 * @since 1.1.1
 */
register_setting( 'dnxcf_options', 'dnxcf_options', 'dnxcf_setup_validate' );

// our validation function
function dnxcf_setup_validate( $input ) {

	$dnxcf_options = get_option( 'dnxcf_options' );
	$valid_input = $dnxcf_options;

	$submit = ( ! empty( $input['submit'] ) ? true : false );
	$reset = ( ! empty( $input['reset'] ) ? true : false );

	if ( $submit ) {
		$default_options = dnxcf_set_options();
		// content type
		$valid_input['dnxcf_content_type'] = ( '1' == $input['dnxcf_content_type'] ? $default_options['dnxcf_content_type'] : '2' );
		// email address
		$valid_input['dnxcf_recv_name'] = ( '' == $input['dnxcf_recv_name'] ? $default_options['dnxcf_recv_name'] : sanitize_text_field( $input['dnxcf_recv_name'] ) );
		$valid_input['dnxcf_recv_email'] = ( '' == $input['dnxcf_recv_email'] ? $default_options['dnxcf_recv_email'] : sanitize_email( $input['dnxcf_recv_email'] ) );
		// subject options
		if ( '' == $input['dnxcf_subject'] ) {
			$valid_input['dnxcf_subject'] = $default_options['dnxcf_subject'];
		} else {
			$valid_input['dnxcf_subject'] = rtrim( esc_textarea( $input['dnxcf_subject'] ) );
			$valid_input['dnxcf_subject'] = explode( "\n", $valid_input['dnxcf_subject'] );
		}
		// from email address and name
		$valid_input['dnxcf_from_email'] = ( '' == $input['dnxcf_from_email'] ? $default_options['dnxcf_from_email'] : sanitize_email( $input['dnxcf_from_email'] ) );
		$valid_input['dnxcf_from_name'] = ( '' == $input['dnxcf_from_name'] ? $default_options['dnxcf_from_name'] : sanitize_text_field( $input['dnxcf_from_name'] ) );
		// privacy policy
		$valid_html = array(
			'a' => array(
				'href' => array(),
				'title' => array(),
			),
			'br' => array(),
			'em' => array(),
			'strong' => array(),
			'p' => array(),
		);
		$valid_input['dnxcf_privacy'] = ( '' == $input['dnxcf_privacy'] ? false : wp_kses( $input['dnxcf_privacy'], $valid_html ) );
		// latitude and longitude
		$valid_input['dnxcf_gmap_message'] = ( '' == $input['dnxcf_gmap_message'] ? $default_options['dnxcf_gmap_message'] : sanitize_text_field( $input['dnxcf_gmap_message'] ) );
		if ( '' != $input['dnxcf_latitude'] ) {
			$valid_input['dnxcf_latitude'] = ( preg_match( '/^[-]?[0-8]?[0-9]\.\d+|[-]?90\.0+?/A', $input['dnxcf_latitude'] ) ? $input['dnxcf_latitude'] : '' );
		} else {
			$valid_input['dnxcf_latitude'] = '';
		}
		$valid_input['dnxcf_apikey'] = ( '' == $input['dnxcf_apikey'] ? $default_options['dnxcf_apikey'] : sanitize_html_class( $input['dnxcf_apikey'] ) );

		if ( '' != $input['dnxcf_longitude'] ) {
			$valid_input['dnxcf_longitude'] = ( preg_match( '/[-]?1[0-7][0-9]\.\d+|[-]?[0-9]?[0-9]\.\d+|[-]?180\.0+?/A', $input['dnxcf_longitude'] ) ? $input['dnxcf_longitude'] : '' );
		} else {
			$valid_input['dnxcf_longitude'] = '';
		}
	} elseif ( $reset ) {
		$default_options = dnxcf_set_options();
		// content type
		$valid_input['dnxcf_content_type'] = $default_options['dnxcf_content_type'];
		// email address
		$valid_input['dnxcf_recv_name'] = $default_options['dnxcf_recv_name'];
		$valid_input['dnxcf_recv_email'] = $default_options['dnxcf_recv_email'];
		// subject options
		$valid_input['dnxcf_subject'] = $default_options['dnxcf_subject'];
		// from email address and name
		$valid_input['dnxcf_from_email'] = $default_options['dnxcf_from_email'];
		$valid_input['dnxcf_from_name'] = $default_options['dnxcf_from_name'];
		// subject options
		$valid_input['dnxcf_privacy'] = $default_options['dnxcf_privacy'];
		// latitude and longitude
		$valid_input['dnxcf_gmap_message'] = $default_options['dnxcf_gmap_message'];
		$valid_input['dnxcf_apikey'] = $default_options['dnxcf_apikey'];
		$valid_input['dnxcf_latitude'] = $default_options['dnxcf_latitude'];
		$valid_input['dnxcf_longitude'] = $default_options['dnxcf_longitude'];
	}
	return $valid_input;
}