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| 1 | <?php |
| 2 | /** |
| 3 | * Merge Strategy Interface |
| 4 | * |
| 5 | * Defines the contract for comparison data merge strategies. |
| 6 | * |
| 7 | * @package Automattic\Jetpack\PremiumAnalytics\Reports\Export\MergeStrategy |
| 8 | */ |
| 9 | |
| 10 | declare( strict_types=1 ); |
| 11 | |
| 12 | namespace Automattic\Jetpack\PremiumAnalytics\Reports\Export\MergeStrategy; |
| 13 | |
| 14 | defined( 'ABSPATH' ) || exit; |
| 15 | |
| 16 | use Automattic\Jetpack\PremiumAnalytics\Reports\Export\Csv_Report_Controller_Interface; |
| 17 | |
| 18 | /** |
| 19 | * Interface for merge strategies. |
| 20 | * |
| 21 | * Merge strategies determine how original and comparison period data |
| 22 | * are combined for CSV export. |
| 23 | * |
| 24 | * @since $$next-version$$ |
| 25 | */ |
| 26 | interface Merge_Strategy_Interface { |
| 27 | |
| 28 | /** |
| 29 | * Merge original and comparison data items. |
| 30 | * |
| 31 | * @param array $original_items Items from original period. |
| 32 | * @param array $comparison_items Items from comparison period. |
| 33 | * @param string $prefix Prefix for comparison field names. |
| 34 | * @param Csv_Report_Controller_Interface $controller Controller for default values and config. |
| 35 | * @return array Merged items with comparison data. |
| 36 | */ |
| 37 | public function merge( array $original_items, array $comparison_items, string $prefix, Csv_Report_Controller_Interface $controller ): array; |
| 38 | } |