Enable Expression Language for the expression field, added example config and run cs-fixer

Author: sebprt

composer.json

@@ -18,7 +18,8 @@
         "php-etl/fast-map-config": "^0.3.0",
         "php-etl/configurator-contracts": "^0.3.0",
         "php-etl/packaging-contracts": "^0.1.0",
-        "php-etl/fast-map": "^0.2.0"
+        "php-etl/fast-map": "^0.2.0",
+        "php-etl/satellite-toolbox": "^0.1.0"
     },
     "require-dev": {
         "php-etl/pipeline-contracts": "^0.1.0",

composer.lock

@@ -0,0 +1,10 @@
+fastmap:
+  map:
+    - field: '[sku]'
+      copy: 'input[sku]'
+    - field: '[title]'
+      expression: '@=(input["sku"] ~" | "~ input["name"])'
+    - field: '[name]'
+      copy: '[name]'
+    - field: '[staticValue]'
+      constant: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur mollis efficitur justo, id facilisis elit venenatis et. Sed fermentum posuere convallis. Phasellus lectus neque, bibendum sit amet enim imperdiet, dignissim blandit nisi. Donec nec neque nisi. Vivamus luctus facilisis nibh id rhoncus. Vestibulum eget facilisis tortor. Etiam at cursus enim, vitae mollis ex. Proin at velit at erat bibendum ultricies. Duis ut velit malesuada, placerat nisl a, ultrices tortor.'

examples/config.yaml

@@ -9,7 +9,8 @@
 final class ArrayMapper implements Builder
 {
     public function __construct(private ArrayBuilder $mapper)
-    {}
+    {
+    }
 
     public function getNode(): Node
     {

src/Builder/ArrayMapper.php

@@ -9,7 +9,8 @@
 final class ObjectMapper implements Builder
 {
     public function __construct(private ObjectBuilder $mapper)
-    {}
+    {
+    }
 
     public function getNode(): Node
     {

src/Builder/ObjectMapper.php

@@ -5,6 +5,8 @@
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
 use Symfony\Component\Config\Definition\ConfigurationInterface;
 use Symfony\Component\Config\Definition\NodeInterface;
+use function Kiboko\Component\SatelliteToolbox\Configuration\asExpression;
+use function Kiboko\Component\SatelliteToolbox\Configuration\isExpression;
 
 final class Configuration implements ConfigurationInterface
 {
@@ -256,7 +258,12 @@ private function getChildTreeBuilder(string $name): TreeBuilder
                 ->children()
                     ->scalarNode('field')->isRequired()->end()
                     ->scalarNode('copy')->end()
-                    ->scalarNode('expression')->end()
+                    ->scalarNode('expression')
+                        ->validate()
+                            ->ifTrue(isExpression())
+                            ->then(asExpression())
+                        ->end()
+                    ->end()
                     ->scalarNode('constant')->end()
                     ->variableNode('map')
                         ->validate()

src/Configuration.php

@@ -8,7 +8,8 @@
 final class ConfigurationApplier
 {
     public function __construct(private array $additionalExpressionVariables = [])
-    {}
+    {
+    }
 
     public function __invoke(CompositeBuilderInterface $mapper, iterable $fields): void
     {
@@ -18,30 +19,30 @@ public function __invoke(CompositeBuilderInterface $mapper, iterable $fields): v
                     $mapper->object($field['field'], $field['class'], $field['expression'])->children(),
                     $field['object'],
                 );
-            } else if (array_key_exists('collection', $field)) {
+            } elseif (array_key_exists('collection', $field)) {
                 $this(
                     $mapper->collection($field['field'], $field['class'], $field['expression'])->children(),
                     $field['collection'],
                 );
-            } else if (array_key_exists('map', $field)) {
+            } elseif (array_key_exists('map', $field)) {
                 $this(
                     $mapper->map($field['field'], $field['expression'])->children(),
                     $field['map'],
                 );
-            } else if (array_key_exists('list', $field)) {
+            } elseif (array_key_exists('list', $field)) {
                 $this(
                     $mapper->list($field['field'], $field['expression'])->children(),
                     $field['list'],
                 );
-            } else if (array_key_exists('copy', $field)) {
+            } elseif (array_key_exists('copy', $field)) {
                 $mapper->copy($field['field'], $field['copy']);
-            } else if (array_key_exists('expression', $field)) { // Should be at the end in order to let the complex fields use the "expression" property
+            } elseif (array_key_exists('expression', $field)) { // Should be at the end in order to let the complex fields use the "expression" property
                 $mapper->expression(
                     $field['field'],
                     $field['expression'],
                     array_merge([], $field['variables'] ?? [], $this->additionalExpressionVariables),
                 );
-            } else if (array_key_exists('constant', $field)) {
+            } elseif (array_key_exists('constant', $field)) {
                 $mapper->constant($field['field'], $field['constant']);
             } else {
                 throw new InvalidConfigurationException(sprintf(