optimize sale sintent

src/Intent/SalesIntentLite.php

@@ -13,10 +13,29 @@ final class SalesIntentLite
     public const IMPLEMENTATION = 'implementation';
     public const ROI            = 'roi';
 
+    /**
+     * Mindestabstand zwischen Top1 und Top2,
+     * damit ein Intent wirklich dominant ist.
+     */
+    private const DOMINANCE_DELTA = 2;
+
+    /**
+     * Mindestscore, damit überhaupt ein Nicht-Discovery-Intent
+     * akzeptiert wird.
+     */
+    private const MIN_SCORE_THRESHOLD = 3;
+
     public function detect(string $originalPrompt): array
     {
         $p = $this->normalize($originalPrompt);
 
+        if ($p === '') {
+            return [
+                'intent' => self::DISCOVERY,
+                'score'  => 0,
+            ];
+        }
+
         $scores = [
             self::PRICING        => 0,
             self::COMPARISON     => 0,
@@ -26,7 +45,7 @@ final class SalesIntentLite
         ];
 
         // ------------------------------------------------------------
-        // PRICING (stark gewichten)
+        // PRICING
         // ------------------------------------------------------------
         foreach ([
                      'preis','preise','kosten','lizenz','lizenzmodell',
@@ -39,13 +58,12 @@ final class SalesIntentLite
         }
 
         // ------------------------------------------------------------
-        // COMPARISON (wichtiger für Katalog-Block)
+        // COMPARISON
         // ------------------------------------------------------------
         foreach ([
                      '/\bvergleich(en)?\b/u',
                      '/\bvs\b/u',
                      '/\bgegenueber\b/u',
-                     '/\boder\b/u',
                      '/\balternative(n)?\b/u',
                      '/\bunterschied(e)?\b/u',
                      '/\bbesser\b/u'
@@ -69,7 +87,7 @@ final class SalesIntentLite
         }
 
         // ------------------------------------------------------------
-        // IMPLEMENTATION (Intent-Verben stärker)
+        // IMPLEMENTATION
         // ------------------------------------------------------------
         foreach ([
                      'implementierung','implementieren',
@@ -85,7 +103,7 @@ final class SalesIntentLite
         }
 
         // ------------------------------------------------------------
-        // ROI (weniger generisch)
+        // ROI
         // ------------------------------------------------------------
         foreach ([
                      'roi','rentabilitaet','rentabilität',
@@ -98,18 +116,35 @@ final class SalesIntentLite
             }
         }
 
+        // ------------------------------------------------------------
+        // Entscheidung
+        // ------------------------------------------------------------
+
         arsort($scores);
 
-        $topIntent = array_key_first($scores);
-        $topScore  = $scores[$topIntent] ?? 0;
+        $intents = array_keys($scores);
+        $values  = array_values($scores);
 
-        if ($topScore <= 0) {
+        $topIntent = $intents[0] ?? self::DISCOVERY;
+        $topScore  = $values[0] ?? 0;
+        $secondScore = $values[1] ?? 0;
+
+        // Kein relevanter Score → Discovery
+        if ($topScore < self::MIN_SCORE_THRESHOLD) {
             return [
                 'intent' => self::DISCOVERY,
                 'score'  => 0,
             ];
         }
 
+        // Keine klare Dominanz → Discovery
+        if (($topScore - $secondScore) < self::DOMINANCE_DELTA) {
+            return [
+                'intent' => self::DISCOVERY,
+                'score'  => $topScore,
+            ];
+        }
+
         return [
             'intent' => $topIntent,
             'score'  => $topScore,
@@ -121,10 +156,10 @@ final class SalesIntentLite
         $s = mb_strtolower($s);
 
         return strtr($s, [
-            'ä'=>'ae',
-            'ö'=>'oe',
-            'ü'=>'ue',
-            'ß'=>'ss'
+            'ä' => 'ae',
+            'ö' => 'oe',
+            'ü' => 'ue',
+            'ß' => 'ss',
         ]);
     }
 }