<?php
/**
 * Functions for Advance WP Redirect
 *
 * @package Advance_WP_Redirect
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Settings link on Plugins screen.
 *
 * @param array $xsawrlite_link Existing links.
 * @return array
 */
function xsawrlite_plugin_link( $xsawrlite_link ) {
	$setting_link = '<a href="' . esc_url( admin_url( 'admin.php?page=xsawrlite_page' ) ) . '">' . esc_html__( 'Setting', 'advance-wp-redirect' ) . '</a>';
	array_unshift( $xsawrlite_link, $setting_link );
	return $xsawrlite_link;
}

/**
 * Echo checked attribute for master option checkboxes.
 *
 * @param string $option_name Option name.
 * @param string $value       Array key under option.
 */
function xsawrlite_check_option( $option_name, $value ) {
	$xsawrlite_getopt = get_option( $option_name );
	if ( isset( $xsawrlite_getopt[ $value ] ) && ! empty( $xsawrlite_getopt ) ) {
		if ( (int) $xsawrlite_getopt[ $value ] === 1 || $xsawrlite_getopt[ $value ] === $value ) {
			echo 'checked="checked"';
		}
	}
}

/**
 * Sanitize master options (Options tab).
 *
 * @param mixed $input Raw input.
 * @return array
 */
function xsawrlite_sanitize_master_options( $input ) {
	if ( ! is_array( $input ) ) {
		return array();
	}
	$out = array();
	if ( ! empty( $input['off-redirect'] ) ) {
		$out['off-redirect'] = '1';
	}
	if ( ! empty( $input['404-redirect'] ) ) {
		$out['404-redirect'] = '1';
	}
	if ( ! empty( $input['nf-redirect'] ) ) {
		$out['nf-redirect'] = '1';
	}
	if ( ! empty( $input['nw-redirect'] ) ) {
		$out['nw-redirect'] = '1';
	}
	if ( isset( $input['gt_redirect'] ) && $input['gt_redirect'] !== '' ) {
		$out['gt_redirect'] = sanitize_text_field( $input['gt_redirect'] );
	}
	$allowed_mq = array( 'exact', 'ignore', 'ignore-and-pass' );
	$mq         = isset( $input['mq_redirect'] ) ? sanitize_text_field( $input['mq_redirect'] ) : 'exact';
	$out['mq_redirect'] = in_array( $mq, $allowed_mq, true ) ? $mq : 'exact';
	return $out;
}

/**
 * Build a redirectable URL from stored target (absolute or site-relative).
 *
 * @param string $raw Raw target from settings.
 * @return string
 */
function xsawrlite_normalize_redirect_target( $raw ) {
	$raw = trim( (string) $raw );
	if ( '' === $raw ) {
		return '';
	}
	if ( preg_match( '#^https?://#i', $raw ) ) {
		return esc_url_raw( $raw );
	}
	return esc_url_raw( home_url( '/' . ltrim( $raw, '/' ) ) );
}

/**
 * Sanitize one redirect rule row.
 *
 * @param mixed $item Row data.
 * @return array
 */
function xsawrlite_sanitize_redirect_entry( $item ) {
	if ( ! is_array( $item ) ) {
		return array();
	}
	$qp_rule_allowed = array( '301', '302', '303', '304', '307', '308' );
	$qp_rule         = isset( $item['qp_rule'] ) ? sanitize_text_field( $item['qp_rule'] ) : '302';
	if ( ! in_array( $qp_rule, $qp_rule_allowed, true ) ) {
		$qp_rule = '302';
	}
	$qp_allowed = array( 'exact', 'ignore', 'ignore-and-pass' );
	$qp         = isset( $item['qp'] ) ? sanitize_text_field( $item['qp'] ) : 'exact';
	if ( ! in_array( $qp, $qp_allowed, true ) ) {
		$qp = 'exact';
	}
	$match_allowed = array( 'durl', 'url_login', 'url_role', 'url_ip' );
	$match         = isset( $item['match'] ) ? sanitize_text_field( $item['match'] ) : 'durl';
	if ( ! in_array( $match, $match_allowed, true ) ) {
		$match = 'durl';
	}
	$matched_allowed = array( 'redirect_url', 'random_post', 'pass_through', '404', 'nothing' );
	$matched         = isset( $item['matched'] ) ? sanitize_text_field( $item['matched'] ) : 'redirect_url';
	if ( ! in_array( $matched, $matched_allowed, true ) ) {
		$matched = 'redirect_url';
	}
	return array(
		'rurl'    => isset( $item['rurl'] ) ? sanitize_text_field( $item['rurl'] ) : '',
		'durl'    => isset( $item['durl'] ) ? sanitize_text_field( $item['durl'] ) : '',
		'qp'      => $qp,
		'match'   => $match,
		'matched' => $matched,
		'qp_rule' => $qp_rule,
		'title'   => isset( $item['title'] ) ? sanitize_text_field( $item['title'] ) : '',
		'nf'      => ! empty( $item['nf'] ) ? '1' : '0',
		'nw'      => ! empty( $item['nw'] ) ? '1' : '0',
	);
}