optimize as sales rag

src/Intent/SalesIntentLite.php

@@ -0,0 +1,160 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Intent;
+
+/**
+ * SalesIntentLite
+ *
+ * Deterministische Vertriebs-Intent-Erkennung.
+ * Kein LLM, kein ML, nur regelbasierte Klassifikation.
+ *
+ * WICHTIG:
+ * - Immer mit ORIGINAL-Prompt aufrufen.
+ * - Nicht mit gereinigter Query.
+ */
+final class SalesIntentLite
+{
+    public const DISCOVERY      = 'discovery';
+    public const PRICING        = 'pricing';
+    public const COMPARISON     = 'comparison';
+    public const OBJECTION      = 'objection';
+    public const IMPLEMENTATION = 'implementation';
+    public const ROI            = 'roi';
+
+    public function detect(string $originalPrompt): array
+    {
+        $p = $this->normalize($originalPrompt);
+
+        $scores = [
+            self::PRICING        => 0,
+            self::COMPARISON     => 0,
+            self::OBJECTION      => 0,
+            self::IMPLEMENTATION => 0,
+            self::ROI            => 0,
+        ];
+
+        // ------------------------------------------------------------
+        // PRICING
+        // ------------------------------------------------------------
+        $pricingWords = [
+            'preis', 'preise', 'kosten', 'lizenz', 'lizenzmodell',
+            'paket', 'pakete', 'tarif', 'tarife',
+            'gebühr', 'gebuehr', 'monatlich', 'jährlich', 'jaehrlich',
+            'abo', 'subscription'
+        ];
+
+        foreach ($pricingWords as $word) {
+            if (preg_match('/\b' . preg_quote($word, '/') . '\b/u', $p)) {
+                $scores[self::PRICING] += 2;
+            }
+        }
+
+        // ------------------------------------------------------------
+        // COMPARISON
+        // ------------------------------------------------------------
+        $comparisonPatterns = [
+            '/\bvergleich\b/u',
+            '/\bvs\b/u',
+            '/\boder\b/u',
+            '/\balternative(n)?\b/u',
+            '/\bunterschied(e)?\b/u',
+            '/\bbesser\b/u',
+        ];
+
+        foreach ($comparisonPatterns as $pattern) {
+            if (preg_match($pattern, $p)) {
+                $scores[self::COMPARISON] += 2;
+            }
+        }
+
+        // ------------------------------------------------------------
+        // OBJECTION
+        // ------------------------------------------------------------
+        $objectionWords = [
+            'problem', 'risiko', 'nachteil', 'datenschutz',
+            'dsgvo', 'sicherheit', 'compliance',
+            'kritik', 'zweifel', 'unsicher'
+        ];
+
+        foreach ($objectionWords as $word) {
+            if (preg_match('/\b' . preg_quote($word, '/') . '\b/u', $p)) {
+                $scores[self::OBJECTION] += 2;
+            }
+        }
+
+        // ------------------------------------------------------------
+        // IMPLEMENTATION
+        // ------------------------------------------------------------
+        $implementationWords = [
+            'implementierung', 'einführung', 'einfuehrung',
+            'integration', 'aufwand', 'setup',
+            'rollout', 'migration', 'installation',
+            'technisch', 'api', 'schnittstelle'
+        ];
+
+        foreach ($implementationWords as $word) {
+            if (preg_match('/\b' . preg_quote($word, '/') . '\b/u', $p)) {
+                $scores[self::IMPLEMENTATION] += 2;
+            }
+        }
+
+        // ------------------------------------------------------------
+        // ROI / Business Case
+        // ------------------------------------------------------------
+        $roiWords = [
+            'roi', 'rentabilität', 'rentabilitaet',
+            'business case', 'nutzen',
+            'effizienz', 'einsparung', 'umsatz',
+            'wert', 'vorteil'
+        ];
+
+        foreach ($roiWords as $word) {
+            if (preg_match('/\b' . preg_quote($word, '/') . '\b/u', $p)) {
+                $scores[self::ROI] += 2;
+            }
+        }
+
+        // ------------------------------------------------------------
+        // Entscheidung
+        // ------------------------------------------------------------
+        arsort($scores);
+
+        $topIntent = array_key_first($scores);
+        $topScore  = $scores[$topIntent] ?? 0;
+
+        if ($topScore <= 0) {
+            return [
+                'intent' => self::DISCOVERY,
+                'score'  => 0,
+            ];
+        }
+
+        return [
+            'intent' => $topIntent,
+            'score'  => $topScore,
+        ];
+    }
+
+    private function normalize(string $s): string
+    {
+        $s = mb_strtolower($s);
+
+        $replacements = [
+            'ä' => 'ae',
+            'ö' => 'oe',
+            'ü' => 'ue',
+            'ß' => 'ss',
+        ];
+
+        foreach ($replacements as $umlaut => $alt) {
+            if (str_contains($s, $umlaut)) {
+                $s .= ' ' . str_replace($umlaut, $alt, $s);
+                break;
+            }
+        }
+
+        return $s;
+    }
+}