Fix MessageBundle key/file name resolver algorithm

extensions/qute/deployment/src/main/java/io/quarkus/qute/deployment/MessageBundleProcessor.java

@@ -205,7 +205,7 @@ List<MessageBundleBuildItem> processBundles(BeanArchiveIndexBuildItem beanArchiv
                     Map<String, Path> localeToMergeCandidate = new HashMap<>();
                     for (Path messageFile : messageFiles) {
                         String fileName = messageFile.getFileName().toString();
-                        if (fileName.startsWith(name)) {
+                        if (bundleNameMatchesFileName(fileName, name)) {
                             final String locale;
                             int postfixIdx = fileName.indexOf('.');
                             if (postfixIdx == name.length()) {
@@ -315,6 +315,30 @@ List<MessageBundleBuildItem> processBundles(BeanArchiveIndexBuildItem beanArchiv
         return bundles;
     }
 
+    static boolean bundleNameMatchesFileName(String fileName, String name) {
+        int fileSeparatorIdx = fileName.indexOf('.');
+        // Remove file extension if exists
+        if (fileSeparatorIdx > -1) {
+            fileName = fileName.substring(0, fileSeparatorIdx);
+        }
+        // Split the filename and the bundle name by underscores
+        String[] fileNameParts = fileName.split("_");
+        String[] nameParts = name.split("_");
+
+        if (fileNameParts.length < nameParts.length) {
+            return false;
+        }
+
+        // Compare each part of the filename with the corresponding part of the bundle name
+        for (int i = 0; i < nameParts.length; i++) {
+            if (!fileNameParts[i].equals(nameParts[i])) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
     @Record(value = STATIC_INIT)
     @BuildStep
     void initBundleContext(MessageBundleRecorder recorder,

extensions/qute/deployment/src/test/java/io/quarkus/qute/deployment/MessageBundleProcessorTest.java

@@ -0,0 +1,26 @@
+package io.quarkus.qute.deployment;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+class MessageBundleProcessorTest {
+
+    @Test
+    void bundleNameMatchesFileName() {
+        assertTrue(MessageBundleProcessor.bundleNameMatchesFileName("messages.properties", "messages"));
+        assertTrue(MessageBundleProcessor.bundleNameMatchesFileName("started.properties", "started"));
+        assertTrue(MessageBundleProcessor.bundleNameMatchesFileName("startedValidation.properties", "startedValidation"));
+        assertTrue(MessageBundleProcessor.bundleNameMatchesFileName("EmailBundles_startedValidation.properties",
+                "EmailBundles_startedValidation"));
+        assertTrue(MessageBundleProcessor.bundleNameMatchesFileName("EmailBundles_startedValidation_pt_BR.properties",
+                "EmailBundles_startedValidation"));
+
+        assertFalse(MessageBundleProcessor.bundleNameMatchesFileName("startedValidation.properties", "started"));
+        assertFalse(MessageBundleProcessor.bundleNameMatchesFileName("EmailBundles_startedValidation.properties",
+                "EmailBundles_started"));
+        assertFalse(MessageBundleProcessor.bundleNameMatchesFileName("EmailBundles_startedValidation_pt_BR.properties",
+                "EmailBundles_started"));
+    }
+}

extensions/qute/deployment/src/test/java/io/quarkus/qute/deployment/i18n/EmailBundles.java

@@ -0,0 +1,45 @@
+package io.quarkus.qute.deployment.i18n;
+
+import io.quarkus.qute.i18n.Message;
+import io.quarkus.qute.i18n.MessageBundle;
+
+public class EmailBundles {
+    @MessageBundle
+    interface started {
+        @Message
+        String started(String id, String filename);
+
+        @Message
+        String documentAccessUrl(String url);
+
+        @Message
+        String nextNotification();
+
+        @Message
+        String signingProcessStart(String id, String filename);
+
+        @Message
+        String subject(String customer, String filename);
+
+        @Message
+        String signForValidation();
+    }
+
+    @MessageBundle
+    interface startedValidator {
+        @Message
+        String started(String id, String filename);
+
+        @Message
+        String turnEmailWillBeSent();
+
+        @Message
+        String youMayAlreadyAccessDocument();
+
+        @Message
+        String subject(String customer, String filename);
+
+        @Message
+        String signForValidation();
+    }
+}

extensions/qute/deployment/src/test/java/io/quarkus/qute/deployment/i18n/MessageBundleNameCollisionTest.java

@@ -0,0 +1,38 @@
+package io.quarkus.qute.deployment.i18n;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import jakarta.inject.Inject;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.qute.Engine;
+import io.quarkus.qute.i18n.MessageBundles;
+import io.quarkus.test.QuarkusUnitTest;
+
+public class MessageBundleNameCollisionTest {
+
+    @RegisterExtension
+    static final QuarkusUnitTest config = new QuarkusUnitTest()
+            .overrideConfigKey("quarkus.default-locale", "en_US")
+            .withApplicationRoot((jar) -> jar
+                    .addClasses(EmailBundles.class)
+                    .addAsResource("messages/EmailBundles_started.properties")
+                    .addAsResource("messages/EmailBundles_started_en.properties")
+                    .addAsResource("messages/EmailBundles_startedValidator.properties")
+                    .addAsResource("messages/EmailBundles_startedValidator_en.properties"));
+
+    @Inject
+    Engine engine;
+
+    @Test
+    public void testBundleMethodIsFound() {
+        EmailBundles.startedValidator startedValidator = MessageBundles.get(EmailBundles.startedValidator.class);
+        assertEquals("You will be notified with another email when it is your turn to sign.",
+                startedValidator.turnEmailWillBeSent());
+        assertEquals("You will be notified with another email when it is your turn to sign.",
+                engine.parse("{EmailBundles_startedValidator:turnEmailWillBeSent()}").render());
+    }
+
+}

extensions/qute/deployment/src/test/resources/messages/EmailBundles_started.properties

@@ -0,0 +1,6 @@
+started=In this process you will sign the document to validate it.
+signingProcessStart=you have started a signing process {id} for document "{filename}".
+nextNotification=You will be notified with another email when it is your signing turn.
+documentAccessUrl=You may access the document in the following link:
+subject=Signing process initiated by {customer} for file {filename}.
+signForValidation=In this process you will sign the document to validate it.

extensions/qute/deployment/src/test/resources/messages/EmailBundles_startedValidator.properties

@@ -0,0 +1,5 @@
+signForValidation=In this process you will sign the document to validate it.
+started=has started a signing process {id} for the document "{filename}".
+subject=Signing process initiated by {customer} for file {filename}.
+turnEmailWillBeSent=You will be notified with another email when it is your turn to sign.
+youMayAlreadyAccessDocument=You can access the document at the following link:

extensions/qute/deployment/src/test/resources/messages/EmailBundles_startedValidator_en.properties

@@ -0,0 +1,5 @@
+signForValidation=In this process you will sign the document to validate it.
+started=has started a signing process {id} for the document "{filename}".
+subject=Signing process initiated by {customer} for file {filename}.
+turnEmailWillBeSent=You will be notified with another email when it is your turn to sign.
+youMayAlreadyAccessDocument=You can access the document at the following link:

extensions/qute/deployment/src/test/resources/messages/EmailBundles_started_en.properties

@@ -0,0 +1,6 @@
+started=In this process you will sign the document to validate it.
+signingProcessStart=you have started a signing process {id} for document "{filename}".
+nextNotification=You will be notified with another email when it is your signing turn.
+documentAccessUrl=You may access the document in the following link:
+subject=Signing process initiated by {customer} for file {filename}.
+signForValidation=In this process you will sign the document to validate it.