<?php
/**
 * MainWP_QQ2_Uploaded_File_Xhr
 *
 * DO NOT TOUCH - part of http://github.com/valums/file-uploader ! (@see js/fileuploader.js)
 * Handle file uploads via XMLHttpRequest
 *
 * @package     MainWP/Dashboard
 */

namespace MainWP\Dashboard;

/**
 * Class MainWP_QQ2_Uploaded_File_Xhr
 *
 * @package MainWP\Dashboard
 */
class MainWP_QQ2_Uploaded_File_Xhr { // phpcs:ignore Generic.Classes.OpeningBraceSameLine.ContentAfterBrace -- NOSONAR.

    // phpcs:disable WordPress.WP.AlternativeFunctions -- use system functions

    /**
     * Save the file to the specified path
     *
     * @param string $path Path to File.
     *
     * @throws \MainWP_Exception Error messages.
     *
     * @return boolean true|false.
     *
     * @uses \MainWP\Dashboard\MainWP_System_Utility::get_wp_file_system()
     */
    public function save( $path ) { // phpcs:ignore -- NOSONAR - complex.
        $input    = fopen( 'php://input', 'r' );
        $temp     = tmpfile();
        $realSize = stream_copy_to_stream( $input, $temp );
        fclose( $input );

        if ( $realSize != $this->get_size() ) { //phpcs:ignore -- to valid.
            return false;
        }

        $hasWPFileSystem = MainWP_System_Utility::get_wp_file_system();

        /**
         * WordPress files system object.
         *
         * @global object
         */
        global $wp_filesystem;

        if ( $hasWPFileSystem && ! empty( $wp_filesystem ) ) {
            if ( ! is_dir( dirname( dirname( dirname( $path ) ) ) ) && ! $wp_filesystem->mkdir( dirname( dirname( dirname( $path ) ) ), 0777 ) ) {
                throw new MainWP_Exception( 'Unable to create the MainWP bulk upload directory, please check your system configuration.' );
            }

            if ( ! is_dir( dirname( dirname( $path ) ) ) && ! $wp_filesystem->mkdir( dirname( dirname( $path ) ), 0777 ) ) {
                throw new MainWP_Exception( 'Unable to create the MainWP bulk upload directory, please check your system configuration.' );
            }

            if ( ! is_dir( dirname( $path ) ) && ! $wp_filesystem->mkdir( dirname( $path ), 0777 ) ) {
                throw new MainWP_Exception( 'Unable to create the MainWP bulk upload directory, please check your system configuration.' );
            }

            fseek( $temp, 0, SEEK_SET );
            $wp_filesystem->put_contents( $path, stream_get_contents( $temp ) );
        } else {
            if ( ! is_dir( dirname( $path ) ) ) {
                mkdir( dirname( $path ), 0777, true );
            }

            $target = fopen( $path, 'w' );
            fseek( $temp, 0, SEEK_SET );
            if ( stream_copy_to_stream( $temp, $target ) <= 0 ) {
                return false;
            }
            fclose( $target );
        }

        if ( ! file_exists( $path ) ) {
            throw new MainWP_Exception( 'Unable to save the file to the MainWP upload directory, please check your system configuration.' );
        }

        return true;
    }

    /** Get the File Name. */
    public function get_name() {
        return isset( $_GET['qqfile'] ) ? sanitize_text_field( wp_unslash( $_GET['qqfile'] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification,WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
    }

    /**
     * Method get_size()
     *
     * Get content length.
     *
     * @throws \MainWP_Exception Error message.
     * @return int Content lenght.
     */
    public function get_size() {
        if ( isset( $_SERVER['CONTENT_LENGTH'] ) ) {
            return (int) $_SERVER['CONTENT_LENGTH'];
        } else {
            throw new MainWP_Exception( 'Getting content length is not supported.' );
        }
    }
}