<?php // Pressable Cache Management - Validate Settings

// Disable direct file access
if (!defined("ABSPATH")) {
    exit();
}

// Callback: validate main options
function pressable_cache_management_callback_validate_options($input) {
    if (empty($input)) {
        $input = [];
    }

    // Extend batcache checkbox
    if (!isset($input["extend_batcache_checkbox"])) {
        $input["extend_batcache_checkbox"] = "";
    }
    $input["extend_batcache_checkbox"] = filter_var($input["extend_batcache_checkbox"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT);

    // Flush object cache on theme and plugin update checkbox
    if (!isset($input["flush_cache_theme_plugin_checkbox"])) {
        $input["flush_cache_theme_plugin_checkbox"] = "";
    }
    $input["flush_cache_theme_plugin_checkbox"] = filter_var($input["flush_cache_theme_plugin_checkbox"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT);

    // Flush object cache on page and post update
    if (!isset($input["flush_cache_page_edit_checkbox"])) {
        $input["flush_cache_page_edit_checkbox"] = "";
    }
    $input["flush_cache_page_edit_checkbox"] = filter_var($input["flush_cache_page_edit_checkbox"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT);

    // Flush object cache on page and post delete
    if (!isset($input["flush_cache_on_page_post_delete_checkbox"])) {
        $input["flush_cache_on_page_post_delete_checkbox"] = "";
    }
    $input["flush_cache_on_page_post_delete_checkbox"] = filter_var($input["flush_cache_on_page_post_delete_checkbox"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT);

    // Flush object cache on comment delete
    if (!isset($input["flush_cache_on_comment_delete_checkbox"])) {
        $input["flush_cache_on_comment_delete_checkbox"] = "";
    }
    $input["flush_cache_on_comment_delete_checkbox"] = filter_var($input["flush_cache_on_comment_delete_checkbox"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT);

    // Flush Batcache for individual page
    if (!isset($input["flush_object_cache_for_single_page"])) {
        $input["flush_object_cache_for_single_page"] = "";
    }
    $input["flush_object_cache_for_single_page"] = filter_var($input["flush_object_cache_for_single_page"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT);

    // Flush Batcache for WooCommerce individual page
    $input["flush_batcache_for_woo_product_individual_page_checkbox"] = isset($input["flush_batcache_for_woo_product_individual_page_checkbox"]) ? filter_var($input["flush_batcache_for_woo_product_individual_page_checkbox"] == 1 ? 1 : 0, FILTER_SANITIZE_NUMBER_INT) : 0;

    // Exclude pages from Batcache — sanitize comma-separated URL paths
    if ( isset( $input['exempt_from_batcache'] ) ) {
        $raw_paths   = explode( ',', $input['exempt_from_batcache'] );
        $clean_paths = array_filter( array_map( function( $path ) {
            $path = sanitize_text_field( wp_unslash( trim( $path ) ) );
            // Strip full URLs — extract just the path portion
            $parsed = wp_parse_url( $path );
            if ( isset( $parsed['path'] ) && '' !== $parsed['path'] ) {
                $path = $parsed['path'];
            }
            // Allow only safe path characters: alphanumeric, hyphen, underscore, dot, slash
            $path = preg_replace( '/[^a-zA-Z0-9\-_\/\.]/', '', $path );
            // Collapse multiple slashes
            $path = preg_replace( '/\/+/', '/', $path );
            // Ensure leading slash
            if ( substr( $path, 0, 1 ) !== '/' ) $path = '/' . $path;
            // Ensure trailing slash
            if ( substr( $path, -1 ) !== '/' ) $path = $path . '/';
            // Must be more than just a single slash
            return strlen( $path ) > 1 ? $path : '';
        }, $raw_paths ) );
        $input['exempt_from_batcache'] = implode( ', ', $clean_paths );
    }

    return $input;
}

// Callback: validate Edge Cache options
function egde_cache_settings_tab_callback_validate_options($input) {
    if ( ! is_array( $input ) ) {
        return array();
    }
    // Sanitize each value — edge cache options are radio/checkbox strings
    $allowed = array( 'enabled', 'disabled', 'enable', 'disable', '1', '0', '' );
    foreach ( $input as $key => $value ) {
        $key = sanitize_key( $key );
        $input[ $key ] = in_array( $value, $allowed, true ) ? $value : sanitize_text_field( $value );
    }
    return $input;
}

// Callback: validate branding options
function remove_pressable_branding_tab_callback_validate_options($input) {
    // Turn On/Off Pressable branding option
    $radio_options = pressable_cache_management_options_radio_button();

    if (!isset($input["branding_on_off_radio_button"])) {
        $input["branding_on_off_radio_button"] = null;
    }
    if (!array_key_exists($input["branding_on_off_radio_button"], $radio_options)) {
        $input["branding_on_off_radio_button"] = null;
    }

    return $input;
}