first commit

wp-content/plugins/wpml-string-translation/classes/batch-translation/Convert.php

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+<?php
+
+namespace WPML\ST\Batch\Translation;
+
+use WPML\Collect\Support\Traits\Macroable;
+use WPML\FP\Fns;
+use WPML\FP\Relation;
+use function WPML\FP\curryN;
+use function WPML\FP\invoke;
+use function WPML\FP\pipe;
+
+/**
+ * Class Convert
+ *
+ * @package WPML\ST\Batch\Translation
+ * @method static callable|array toBatchElements( ...$getBatchId, ...$setBatchRecord, ...$elements, ...$basketName ) :: ( string → int ) → ( int → int → string ) → [WPML_TM_Translation_Batch_Element] → string → [WPML_TM_Translation_Batch_Element]
+ */
+class Convert {
+
+	use Macroable;
+
+	public static function init() {
+
+		self::macro(
+			'toBatchElements',
+			curryN(
+				4,
+				function ( $getBatchId, $setBatchRecord, $elements, $basketName ) {
+
+					// $isString :: WPML_TM_Translation_Batch_Element → bool
+					$isString = pipe( invoke( 'get_element_type' ), Relation::equals( 'string' ) );
+
+					list( $stringElements, $otherElements ) = wpml_collect( $elements )->partition( $isString );
+
+					$makeBatchPerLanguage = function ( \WPML_TM_Translation_Batch_Element $element ) use ( $getBatchId, $setBatchRecord, $basketName ) {
+						$makeBatchElement = function ( $action, $lang ) use ( $element, $getBatchId, $setBatchRecord, $basketName ) {
+							$batchId = $getBatchId( $basketName . '-' . $lang );
+
+							$setBatchRecord( $batchId, $element->get_element_id(), $element->get_source_lang() );
+
+							return Fns::makeN(
+								5,
+								'WPML_TM_Translation_Batch_Element',
+								$batchId,
+								'st-batch',
+								$element->get_source_lang(),
+								[ $lang => $action ],
+								[]
+							);
+						};
+
+						return Fns::map( $makeBatchElement, $element->get_target_langs() );
+					};
+
+					$stringElements = $stringElements->map( $makeBatchPerLanguage )
+												 ->flatten()
+												 ->unique( invoke( 'get_target_langs' ) );
+
+					return $otherElements->merge( $stringElements )
+									 ->toArray();
+				}
+			)
+		);
+
+	}
+}
+
+Convert::init();
+