/var/www/html_de/wp-content/plugins/elementor/modules/variables/storage/repository.php


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<?php

namespace Elementor\Modules\Variables\Storage;

use 
Elementor\Core\Kits\Documents\Kit;
use 
Elementor\Modules\AtomicWidgets\Utils;
use 
Elementor\Modules\Variables\Storage\Exceptions\DuplicatedLabel;
use 
Elementor\Modules\Variables\Storage\Exceptions\RecordNotFound;
use 
Elementor\Modules\Variables\Storage\Exceptions\VariablesLimitReached;
use 
Elementor\Modules\Variables\Storage\Exceptions\FatalError;
use 
Elementor\Modules\Variables\Storage\Exceptions\BatchOperationFailed;
use 
Exception;

if ( ! 
defined'ABSPATH' ) ) {
    exit; 
// Exit if accessed directly.
}

class 
Repository {
    const 
TOTAL_VARIABLES_COUNT 100;
    const 
FORMAT_VERSION_V1 1;
    const 
VARIABLES_META_KEY '_elementor_global_variables';
    private 
Kit $kit;

    public function 
__constructKit $kit ) {
        
$this->kit $kit;
    }

    
/**
     * @throws VariablesLimitReached
     */
    
private function assert_if_variables_limit_reached( array $db_record ) {
        
$variables_in_use 0;

        foreach ( 
$db_record['data'] as $variable ) {
            if ( isset( 
$variable['deleted'] ) && $variable['deleted'] ) {
                continue;
            }

            ++
$variables_in_use;
        }

        if ( 
self::TOTAL_VARIABLES_COUNT $variables_in_use ) {
            throw new 
VariablesLimitReached'Total variables count limit reached' );
        }
    }

    
/**
     * @throws DuplicatedLabel
     */
    
private function assert_if_variable_label_is_duplicated( array $db_record, array $variable = [] ) {
        foreach ( 
$db_record['data'] as $id => $existing_variable ) {
            if ( isset( 
$existing_variable['deleted'] ) && $existing_variable['deleted'] ) {
                continue;
            }

            if ( isset( 
$variable['id'] ) && $variable['id'] === $id ) {
                continue;
            }

            if ( ! isset( 
$variable['label'] ) || ! isset( $existing_variable['label'] ) ) {
                continue;
            }

            if ( 
strtolower$existing_variable['label'] ) === strtolower$variable['label'] ) ) {
                throw new 
DuplicatedLabel'Variable label already exists' );
            }
        }
    }

    public function 
variables(): array {
        
$db_record $this->load();

        return 
$db_record['data'] ?? [];
    }

    public function 
load(): array {
        
$db_record $this->kit->get_json_meta( static::VARIABLES_META_KEY );

        if ( 
is_array$db_record ) && ! empty( $db_record ) ) {
            return 
$db_record;
        }

        return 
$this->get_default_meta();
    }

    
/**
     * @throws FatalError
     */
    
public function create( array $variable ) {
        
$db_record $this->load();

        
$list_of_variables $db_record['data'] ?? [];

        
$id $this->new_id_for$list_of_variables );
        
$new_variable $this->extract_from$variable, [
            
'type',
            
'label',
            
'value',
        ] );

        
$this->assert_if_variable_label_is_duplicated$db_record$new_variable );

        
$list_of_variables$id ] = $new_variable;
        
$db_record['data'] = $list_of_variables;

        
$this->assert_if_variables_limit_reached$db_record );

        
$watermark $this->save$db_record );

        if ( 
false === $watermark ) {
            throw new 
FatalError'Failed to create variable' );
        }

        return [
            
'variable' => array_merge( [ 'id' => $id ], $list_of_variables$id ] ),
            
'watermark' => $watermark,
        ];
    }

    
/**
     * @throws RecordNotFound
     * @throws FatalError
     */
    
public function updatestring $id, array $variable ) {
        
$db_record $this->load();

        
$list_of_variables $db_record['data'] ?? [];

        if ( ! isset( 
$list_of_variables$id ] ) ) {
            throw new 
RecordNotFound'Variable not found' );
        }

        
$updated_variable array_merge$list_of_variables$id ], $this->extract_from$variable, [
            
'label',
            
'value',
        ] ) );

        
$this->assert_if_variable_label_is_duplicated$db_recordarray_merge$updated_variable, [ 'id' => $id ] ) );

        
$list_of_variables$id ] = $updated_variable;
        
$db_record['data'] = $list_of_variables;

        
$watermark $this->save$db_record );

        if ( 
false === $watermark ) {
            throw new 
FatalError'Failed to update variable' );
        }

        return [
            
'variable' => array_merge( [ 'id' => $id ], $list_of_variables$id ] ),
            
'watermark' => $watermark,
        ];
    }

    
/**
     * @throws RecordNotFound
     * @throws FatalError
     */
    
public function deletestring $id ) {
        
$db_record $this->load();

        
$list_of_variables $db_record['data'] ?? [];

        if ( ! isset( 
$list_of_variables$id ] ) ) {
            throw new 
RecordNotFound'Variable not found' );
        }

        
$list_of_variables$id ]['deleted'] = true;
        
$list_of_variables$id ]['deleted_at'] = $this->now();

        
$db_record['data'] = $list_of_variables;

        
$watermark $this->save$db_record );

        if ( 
false === $watermark ) {
            throw new 
FatalError'Failed to delete variable' );
        }

        return [
            
'variable' => array_merge( [ 'id' => $id ], $list_of_variables$id ] ),
            
'watermark' => $watermark,
        ];
    }

    
/**
     * @throws RecordNotFound
     * @throws FatalError
     */
    
public function restorestring $id$overrides = [] ) {
        
$db_record $this->load();

        
$list_of_variables $db_record['data'] ?? [];

        if ( ! isset( 
$list_of_variables$id ] ) ) {
            throw new 
RecordNotFound'Variable not found' );
        }

        
$restored_variable $this->extract_from$list_of_variables$id ], [
            
'label',
            
'value',
            
'type',
        ] );

        if ( 
array_key_exists'label'$overrides ) ) {
            
$restored_variable['label'] = $overrides['label'];
        }

        if ( 
array_key_exists'value'$overrides ) ) {
            
$restored_variable['value'] = $overrides['value'];
        }

        
$this->assert_if_variable_label_is_duplicated$db_recordarray_merge$restored_variable, [ 'id' => $id ] ) );

        
$list_of_variables$id ] = $restored_variable;
        
$db_record['data'] = $list_of_variables;

        
$this->assert_if_variables_limit_reached$db_record );

        
$watermark $this->save$db_record );

        if ( 
false === $watermark ) {
            throw new 
FatalError'Failed to restore variable' );
        }

        return [
            
'variable' => array_merge( [ 'id' => $id ], $restored_variable ),
            
'watermark' => $watermark,
        ];
    }

    
/**
     * Process multiple operations atomically
     *
     * @throws BatchOperationFailed
     * @throws FatalError
     */
    
public function process_atomic_batch( array $operationsint $expected_watermark ): array {
        
$db_record $this->load();
        
$results = [];
        
$errors = [];

        foreach ( 
$operations as $index => $operation ) {
            try {
                
$result $this->process_single_operation$db_record$operation );
                
$results[] = $result;
            } catch ( 
Exception $e ) {
                
$operation_id $this->get_operation_identifier$operation$index );
                
$errors$operation_id ] = [
                    
'status' => $this->get_error_status_code$e ),
                    
'message' => $e->getMessage(),
                ];
            }
        }

        if ( ! empty( 
$errors ) ) {
            
$error_details = [];

            foreach ( 
$errors as $operation_id => $error ) {
                
$error_detailsesc_html$operation_id ) ] = [
                    
'status' => (int) $error['status'],
                    
'message' => esc_html$error['message'] ),
                ];
            }

            
// phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped
            
throw new BatchOperationFailed'Batch operation failed'$error_details );
        }

        
$watermark $this->save$db_record );

        if ( 
false === $watermark ) {
            throw new 
FatalError'Failed to save batch operations' );
        }

        return [
            
'success' => true,
            
'watermark' => $watermark,
            
'results' => $results,
        ];
    }

    private function 
process_single_operation( array &$db_record, array $operation ): array {
        switch ( 
$operation['type'] ) {
            case 
'create':
                return 
$this->process_create_operation$db_record$operation );

            case 
'update':
                return 
$this->process_update_operation$db_record$operation );

            case 
'delete':
                return 
$this->process_delete_operation$db_record$operation );

            case 
'restore':
                return 
$this->process_restore_operation$db_record$operation );

            default:
                throw new 
BatchOperationFailed'Invalid operation type: ' esc_html$operation['type'] ), [] );
        }
    }

    private function 
process_create_operation( array &$db_record, array $operation ): array {
        
$variable_data $operation['variable'];

        
$temp_id $variable_data['id'] ?? null;
        
$new_variable $this->extract_from$variable_data, [ 'type''label''value' ] );

        
$this->assert_if_variable_label_is_duplicated$db_record$new_variable );

        
$this->assert_if_variables_limit_reached$db_record );

        
$id $this->new_id_for$db_record['data'] );
        
$now $this->now();

        
$new_variable['created_at'] = $now;
        
$new_variable['updated_at'] = $now;

        
$db_record['data'][ $id ] = $new_variable;

        return [
            
'id' => $id,
            
'variable' => array_merge( [ 'id' => $id ], $new_variable ),
            
'temp_id' => $temp_id,
        ];
    }

    private function 
process_update_operation( array &$db_record, array $operation ): array {
        
$id $operation['id'];
        
$variable_data $operation['variable'];

        if ( ! isset( 
$db_record['data'][ $id ] ) ) {
            throw new 
\Elementor\Modules\Variables\Storage\Exceptions\RecordNotFound'Variable not found' );
        }

        
$updated_fields $this->extract_from$variable_data, [ 'label''value' ] );
        
$updated_variable array_merge$db_record['data'][ $id ], $updated_fields );
        
$updated_variable['updated_at'] = $this->now();

        
$this->assert_if_variable_label_is_duplicated$db_recordarray_merge$updated_variable, [ 'id' => $id ] ) );

        
$db_record['data'][ $id ] = $updated_variable;

        return [
            
'id' => $id,
            
'variable' => array_merge( [ 'id' => $id ], $updated_variable ),
        ];
    }

    private function 
process_delete_operation( array &$db_record, array $operation ): array {
        
$id $operation['id'];

        if ( ! isset( 
$db_record['data'][ $id ] ) ) {
            throw new 
RecordNotFound'Variable not found' );
        }

        
$db_record['data'][ $id ]['deleted'] = true;
        
$db_record['data'][ $id ]['deleted_at'] = $this->now();

        return [
            
'id' => $id,
            
'deleted' => true,
        ];
    }

    private function 
process_restore_operation( array &$db_record, array $operation ): array {
        
$id $operation['id'];

        if ( ! isset( 
$db_record['data'][ $id ] ) ) {
            throw new 
RecordNotFound'Variable not found' );
        }

        
$overrides = [];

        if ( isset( 
$operation['label'] ) ) {
            
$overrides['label'] = $operation['label'];
        }

        if ( isset( 
$operation['value'] ) ) {
            
$overrides['value'] = $operation['value'];
        }

        
$restored_variable $this->extract_from$db_record['data'][ $id ], [ 'label''value''type' ] );
        
$restored_variable array_merge$restored_variable$overrides );
        
$restored_variable['updated_at'] = $this->now();

        
$this->assert_if_variable_label_is_duplicated$db_recordarray_merge$restored_variable, [ 'id' => $id ] ) );

        
$this->assert_if_variables_limit_reached$db_record );

        
$db_record['data'][ $id ] = $restored_variable;

        return [
            
'id' => $id,
            
'variable' => array_merge( [ 'id' => $id ], $restored_variable ),
        ];
    }

    private function 
get_operation_identifier( array $operationint $index ): string {
        if ( 
'create' === $operation['type'] && isset( $operation['variable']['id'] ) ) {
            return 
$operation['variable']['id'];
        }

        if ( isset( 
$operation['id'] ) ) {
            return 
$operation['id'];
        }

        return 
"operation_{$index}";
    }

    private function 
get_error_status_codeException $e ): int {
        if ( 
$e instanceof RecordNotFound ) {
            return 
404;
        }

        if ( 
$e instanceof DuplicatedLabel ||
             
$e instanceof VariablesLimitReached ) {
            return 
400;
        }

        return 
500;
    }

    private function 
save( array $db_record ) {
        if ( 
PHP_INT_MAX === $db_record['watermark'] ) {
            
$db_record['watermark'] = 0;
        }

        ++
$db_record['watermark'];

        if ( 
$this->kit->update_json_meta( static::VARIABLES_META_KEY$db_record ) ) {
            return 
$db_record['watermark'];
        }

        return 
false;
    }

    private function 
new_id_for( array $list_of_variables ): string {
        return 
Utils::generate_id'e-gv-'array_keys$list_of_variables ) );
    }

    private function 
now(): string {
        return 
gmdate'Y-m-d H:i:s' );
    }

    private function 
extract_from( array $source, array $fields ): array {
        return 
array_intersect_key$sourcearray_flip$fields ) );
    }

    private function 
get_default_meta(): array {
        return [
            
'data' => [],
            
'watermark' => 0,
            
'version' => self::FORMAT_VERSION_V1,
        ];
    }
}