From a4cdbc429d15f0ea8e0101341ef7720a63c3d962 Mon Sep 17 00:00:00 2001
From: Darin Kelkhoff <darin.kelkhoff@gmail.com>
Date: Tue, 12 Mar 2024 11:51:29 -0500
Subject: [PATCH] CE-936 - Add method inferNameFromBackendName

---
 .../core/instances/QInstanceEnricher.java     | 44 +++++++++++++++++++
 .../core/instances/QInstanceEnricherTest.java | 17 +++++++
 2 files changed, 61 insertions(+)

diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
index 232ade6c..45d249ed 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
@@ -1030,6 +1030,50 @@ public class QInstanceEnricher
 
 
 
+   /*******************************************************************************
+    ** Do a default mapping from an underscore_style field name to a camelCase name.
+    **
+    ** Examples:
+    ** <ul>
+    **   <li>word_another_word_more_words -> wordAnotherWordMoreWords</li>
+    **   <li>l_ul_ul_ul -> lUlUlUl</li>
+    **   <li>tla_first -> tlaFirst</li>
+    **   <li>word_then_tla_in_middle -> wordThenTlaInMiddle</li>
+    **   <li>end_with_tla -> endWithTla</li>
+    **   <li>tla_and_another_tla -> tlaAndAnotherTla</li>
+    **   <li>ALL_CAPS -> allCaps</li>
+    ** </ul>
+    *******************************************************************************/
+   public static String inferNameFromBackendName(String backendName)
+   {
+      StringBuilder rs = new StringBuilder();
+
+      ////////////////////////////////////////////////////////////////////////////////////////
+      // build a list of words in the name, then join them with _ and lower-case the result //
+      ////////////////////////////////////////////////////////////////////////////////////////
+      String[] words = backendName.toLowerCase(Locale.ROOT).split("_");
+      for(int i = 0; i < words.length; i++)
+      {
+         String word = words[i];
+         if(i == 0)
+         {
+            rs.append(word);
+         }
+         else
+         {
+            rs.append(word.substring(0, 1).toUpperCase());
+            if(word.length() > 1)
+            {
+               rs.append(word.substring(1));
+            }
+         }
+      }
+
+      return (rs.toString());
+   }
+
+
+
    /*******************************************************************************
     ** If a app didn't have any sections, generate "sensible defaults"
     *******************************************************************************/
diff --git a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java
index 53e9ec96..a4ab55c9 100644
--- a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java
+++ b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java
@@ -232,6 +232,23 @@ class QInstanceEnricherTest extends BaseTest
    }
 
 
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testInferNameFromBackendName()
+   {
+      assertEquals("id", QInstanceEnricher.inferNameFromBackendName("id"));
+      assertEquals("wordAnotherWordMoreWords", QInstanceEnricher.inferNameFromBackendName("word_another_word_more_words"));
+      assertEquals("lUlUlUl", QInstanceEnricher.inferNameFromBackendName("l_ul_ul_ul"));
+      assertEquals("tlaFirst", QInstanceEnricher.inferNameFromBackendName("tla_first"));
+      assertEquals("wordThenTlaInMiddle", QInstanceEnricher.inferNameFromBackendName("word_then_tla_in_middle"));
+      assertEquals("endWithTla", QInstanceEnricher.inferNameFromBackendName("end_with_tla"));
+      assertEquals("tlaAndAnotherTla", QInstanceEnricher.inferNameFromBackendName("tla_and_another_tla"));
+      assertEquals("allCaps", QInstanceEnricher.inferNameFromBackendName("ALL_CAPS"));
+   }
+
+
 
    /*******************************************************************************
     **