<?php
namespace Zadex;

defined('ABSPATH') || exit;

/**
 * File writes through the WordPress Filesystem API (`$wp_filesystem`), set up on first use with WP_Filesystem().
 * Used for the files Zadex writes into uploads (icon set fonts / CSS, the index.php guards) and its temp files.
 */
final class Filesystem
{
    /** The WP_Filesystem instance, or null when it cannot be set up. */
    public static function get(): ?object
    {
        global $wp_filesystem;
        if (!is_object($wp_filesystem) && !function_exists('WP_Filesystem') && defined('ABSPATH') && is_file(ABSPATH . 'wp-admin/includes/file.php')) {
            require_once ABSPATH . 'wp-admin/includes/file.php';
        }
        if (!is_object($wp_filesystem) && function_exists('WP_Filesystem')) {
            WP_Filesystem();
        }
        return is_object($wp_filesystem) ? $wp_filesystem : null;
    }

    /** Writes $contents to $path (FS_CHMOD_FILE permissions). */
    public static function put(string $path, string $contents): bool
    {
        $fs = self::get();
        if ($fs === null) {
            return false;
        }
        return (bool) $fs->put_contents($path, $contents, defined('FS_CHMOD_FILE') ? FS_CHMOD_FILE : 0644);
    }
}