<?php

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namespace ImageOptimization\Classes\Image;

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use ImageOptimization\Classes\File_System\{

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Exceptions\File_System_Operation_Error,

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File_System,

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};

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use ImageOptimization\Classes\File_Utils;

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use ImageOptimization\Classes\Image\Exceptions\{

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Image_Restoring_Exception,

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Invalid_Image_Exception,

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};

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use ImageOptimization\Classes\Logger;

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use Throwable;

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if ( ! defined( 'ABSPATH' ) ) {

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exit; // Exit if accessed directly.

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}

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class Image_Restore {

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public static function restore_many( array $image_ids, bool $keep_image_meta = false ): void {

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foreach ( $image_ids as $image_id ) {

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try {

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self::restore( $image_id, $keep_image_meta );

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} catch ( Throwable $t ) {

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Logger::log( Logger::LEVEL_ERROR, 'Bulk images restoring error: ' . $t->getMessage() );

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( new Image_Meta( $image_id ) )

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->set_status( Image_Status::RESTORING_FAILED )

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->save();

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continue;

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}

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}

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}

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/**

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* @throws Invalid_Image_Exception|Image_Restoring_Exception|File_System_Operation_Error

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*/

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public static function restore( int $image_id, bool $keep_image_meta = false ): void {

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$image = new Image( $image_id );

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if ( ! $image->can_be_restored() ) {

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throw new Image_Restoring_Exception( "Image $image_id cannot be restored" );

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}

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$meta = new Image_Meta( $image_id );

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$wp_meta = new WP_Image_Meta( $image_id );

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foreach ( $meta->get_optimized_sizes() as $image_size ) {

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$backup_path = $meta->get_image_backup_path( $image_size );

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$current_path = $image->get_file_path( $image_size );

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if ( $backup_path && $current_path ) {

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$original_path = self::get_path_from_backup_path( $backup_path );

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if ( $original_path === $backup_path ) {

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File_System::delete( $current_path, false, 'f' );

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self::update_posts( $current_path, $original_path );

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} else {

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File_System::move( $backup_path, $original_path, $original_path === $current_path );

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if ( $original_path !== $current_path ) {

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File_System::delete( $current_path, false, 'f' );

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self::update_posts( $current_path, $original_path );

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}

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}

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$file_size = $meta->get_original_file_size( $image_size ) ?? File_System::size( $original_path );

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$wp_meta

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->set_file_path( $image_size, $original_path )

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->set_mime_type( $image_size, $meta->get_original_mime_type( $image_size ) )

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->set_width( $image_size, $meta->get_original_width( $image_size ) )

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->set_height( $image_size, $meta->get_original_height( $image_size ) )

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->set_file_size( $image_size, $file_size );

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if ( Image::SIZE_FULL === $image_size ) {

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self::update_image_post(

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$image,

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$original_path,

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$meta->get_original_mime_type( Image::SIZE_FULL )

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);

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}

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}

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}

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$wp_meta->save();

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if ( $keep_image_meta ) {

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$meta

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->clear_optimized_sizes()

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->clear_backups()

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->clear_original_data()

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->save();

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return;

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}

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$meta->delete();

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}

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private static function get_path_from_backup_path( string $backup_path ): string {

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$extension = File_Utils::get_extension( $backup_path );

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return str_replace( ".backup.$extension", ".$extension", $backup_path );

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}

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private static function update_image_post( Image $image, string $image_path, string $mime_type ): void {

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$post_update_query = [

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'post_modified' => current_time( 'mysql' ),

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'post_modified_gmt' => current_time( 'mysql', true ),

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'post_mime_type' => $mime_type,

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'guid' => File_Utils::get_url_from_path( $image_path ),

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];

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$image->update_attachment( $post_update_query );

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update_attached_file( $image->get_id(), $image_path );

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}

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/**

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* If we change an image extension, we should walk through the wp_posts table and update all the

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* hardcoded image links to prevent 404s.

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*

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* @param string $old_path Previous image path

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* @param string $new_path Current image path

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*

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* @return void

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*/

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private static function update_posts( string $old_path, string $new_path ) {

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Image_DB_Update::update_posts_table_urls(

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File_Utils::get_url_from_path( $old_path ),

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File_Utils::get_url_from_path( $new_path )

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);

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}

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}

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