From f011b0cb89f803d19865f0d827eeeef7f6873aca Mon Sep 17 00:00:00 2001
From: Guillaume Dugas <dugas.guillaume@gmail.com>
Date: Wed, 25 Feb 2026 16:53:11 +0100
Subject: [PATCH] Ajout du filtre json

---
 .../blocks/pebble/PebbleJsonFilterTest.java   | 56 +++++++++++++++++++
 .../blocks/pebble/PebbleBlocksExtension.java  | 11 ++++
 .../blocks/pebble/PebbleJsonFilter.java       | 35 ++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 modules/core/deployment/src/test/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilterTest.java
 create mode 100644 modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilter.java

diff --git a/modules/core/deployment/src/test/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilterTest.java b/modules/core/deployment/src/test/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilterTest.java
new file mode 100644
index 0000000..7d4ea1f
--- /dev/null
+++ b/modules/core/deployment/src/test/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilterTest.java
@@ -0,0 +1,56 @@
+package fr.cnd.compositor.blocks.pebble;
+
+import io.quarkus.test.junit.QuarkusTest;
+import jakarta.inject.Inject;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@QuarkusTest
+class PebbleJsonFilterTest {
+
+  @Inject
+  PebbleBlockEngine pebbleBlockEngine;
+
+  @Test
+  void shouldSerializeString() {
+    String result = render("{{ value | json }}", Map.of("value", "hello"));
+
+    assertEquals("\"hello\"", result);
+  }
+
+  @Test
+  void shouldSerializeInteger() {
+    String result = render("{{ value | json }}", Map.of("value", 42));
+
+    assertEquals("42", result);
+  }
+
+  @Test
+  void shouldSerializeMap() {
+    String result = render("{{ value | json }}", Map.of("value", Map.of("key", "val")));
+
+    assertEquals("{\"key\":\"val\"}", result);
+  }
+
+  @Test
+  void shouldSerializeList() {
+    String result = render("{{ value | json }}", Map.of("value", List.of(1, 2, 3)));
+
+    assertEquals("[1,2,3]", result);
+  }
+
+  @Test
+  void shouldSerializeNull() {
+    String result = render("{{ value | json }}", Map.of());
+
+    assertEquals("null", result);
+  }
+
+  private String render(String template, Map<String, Object> context) {
+    return pebbleBlockEngine.render(template, context).await().indefinitely();
+  }
+}
diff --git a/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleBlocksExtension.java b/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleBlocksExtension.java
index a4cb1e5..993ff0d 100644
--- a/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleBlocksExtension.java
+++ b/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleBlocksExtension.java
@@ -1,6 +1,7 @@
 package fr.cnd.compositor.blocks.pebble;
 
 import io.pebbletemplates.pebble.extension.AbstractExtension;
+import io.pebbletemplates.pebble.extension.Filter;
 import io.pebbletemplates.pebble.extension.Function;
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.inject.Inject;
@@ -12,8 +13,18 @@ public class PebbleBlocksExtension extends AbstractExtension {
 
   @Inject
   PebbleSlotFunction pebbleSlotFunction;
+
+  @Inject
+  PebbleJsonFilter pebbleJsonFilter;
+
+  @Override
   public Map<String, Function> getFunctions() {
     return Map.of("slot", pebbleSlotFunction);
   }
 
+  @Override
+  public Map<String, Filter> getFilters() {
+    return Map.of("json", pebbleJsonFilter);
+  }
+
 }
diff --git a/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilter.java b/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilter.java
new file mode 100644
index 0000000..e7b7b5a
--- /dev/null
+++ b/modules/core/runtime/src/main/java/fr/cnd/compositor/blocks/pebble/PebbleJsonFilter.java
@@ -0,0 +1,35 @@
+package fr.cnd.compositor.blocks.pebble;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.pebbletemplates.pebble.error.PebbleException;
+import io.pebbletemplates.pebble.extension.Filter;
+import io.pebbletemplates.pebble.extension.escaper.SafeString;
+import io.pebbletemplates.pebble.template.EvaluationContext;
+import io.pebbletemplates.pebble.template.PebbleTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+
+import java.util.List;
+import java.util.Map;
+
+@ApplicationScoped
+public class PebbleJsonFilter implements Filter {
+
+  @Inject
+  ObjectMapper objectMapper;
+
+  @Override
+  public Object apply(Object input, Map<String, Object> args, PebbleTemplate self, EvaluationContext context, int lineNumber) {
+    try {
+      return new SafeString(objectMapper.writeValueAsString(input));
+    } catch (JsonProcessingException e) {
+      throw new PebbleException(e, "Failed to serialize object to JSON", lineNumber, self.getName());
+    }
+  }
+
+  @Override
+  public List<String> getArgumentNames() {
+    return List.of();
+  }
+}