From e71babca1c4071c13f2d3181be2476a23e2f832c Mon Sep 17 00:00:00 2001
From: Marcos Paulo <marcos.paulodasilva.mp@gmail.com>
Date: Tue, 18 Aug 2026 22:00:42 -0300
Subject: [PATCH] fix(memory): align substring index with trimmed input in
 extractHeuristicFact

---
 src/main/java/dev/marcospaulo/canalhandia/PlayerMemory.java  | 5 +++--
 .../java/dev/marcospaulo/canalhandia/PlayerMemoryTest.java   | 4 ++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/main/java/dev/marcospaulo/canalhandia/PlayerMemory.java b/src/main/java/dev/marcospaulo/canalhandia/PlayerMemory.java
index dac22b5..347b4ae 100644
--- a/src/main/java/dev/marcospaulo/canalhandia/PlayerMemory.java
+++ b/src/main/java/dev/marcospaulo/canalhandia/PlayerMemory.java
@@ -205,7 +205,8 @@ final class PlayerMemory {
         if (text == null) {
             return null;
         }
-        String lower = text.toLowerCase(Locale.ROOT).trim();
+        String clean = text.trim();
+        String lower = clean.toLowerCase(Locale.ROOT);
         String[] triggers = {
             "minha base", "meu spawn", "minha casa", "estou construindo",
             "meu plano", "meu objetivo", "sou especialista em", "moro em"
@@ -213,7 +214,7 @@ final class PlayerMemory {
         for (String trigger : triggers) {
             int idx = lower.indexOf(trigger);
             if (idx >= 0) {
-                String candidate = text.substring(idx).trim();
+                String candidate = clean.substring(idx).trim();
                 candidate = candidate.replaceAll("[?!.]+$", "").trim();
                 if (candidate.length() > 60) {
                     candidate = candidate.substring(0, 60) + "…";
diff --git a/src/test/java/dev/marcospaulo/canalhandia/PlayerMemoryTest.java b/src/test/java/dev/marcospaulo/canalhandia/PlayerMemoryTest.java
index a3b0d3f..c3aab39 100644
--- a/src/test/java/dev/marcospaulo/canalhandia/PlayerMemoryTest.java
+++ b/src/test/java/dev/marcospaulo/canalhandia/PlayerMemoryTest.java
@@ -143,6 +143,10 @@ class PlayerMemoryTest {
         assertNotNull(fact);
         assertTrue(fact.contains("estou construindo uma pirâmide gigante"));
         assertNull(PlayerMemory.extractHeuristicFact("quantos blocos tem o mundo?"));
+
+        // Leading / trailing whitespace index alignment
+        assertEquals("minha base fica no topo", PlayerMemory.extractHeuristicFact("   minha base fica no topo!  "));
+        assertEquals("estou construindo uma ponte", PlayerMemory.extractHeuristicFact("  oi, estou construindo uma ponte..."));
     }
 
     @Test