Phase 4: Support LID identity scheme and fix incoming message parsing

2026-05-21 23:44:25 +03:00
parent 0a1752ce44
commit ec7c9ffc29
9 changed files with 790 additions and 20 deletions
--- a/backend/app/Services/GeminiService.php
+++ b/backend/app/Services/GeminiService.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Services;
+
+class GeminiService
+{
+    /**
+     * Call Gemini API to generate a response
+     */
+    public static function generateResponse(string $apiKey, string $systemPrompt, string $userMessage): ?string
+    {
+        $url = 'https://generativelanguage.googleapis.com/v1beta/models/gemini-flash-lite-latest:generateContent?key=' . $apiKey;
+
+        $payload = json_encode([
+            'contents' => [
+                [
+                    'role' => 'user',
+                    'parts' => [
+                        ['text' => $userMessage]
+                    ]
+                ]
+            ],
+            'systemInstruction' => [
+                'parts' => [
+                    ['text' => $systemPrompt]
+                ]
+            ]
+        ]);
+
+        $ch = curl_init($url);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, [
+            'Content-Type: application/json'
+        ]);
+        curl_setopt($ch, CURLOPT_TIMEOUT, 15);
+
+        $response = curl_exec($ch);
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($httpCode !== 200) {
+            error_log("[Gemini API Error] HTTP " . $httpCode . " | Response: " . $response);
+            return null;
+        }
+
+        $data = json_decode($response, true);
+        return $data['candidates'][0]['content']['parts'][0]['text'] ?? null;
+    }
+}