Update: 2026-05-04 01:33:55

2026-05-04 01:33:55 +03:00
parent ad48142492
commit 90f2f6f6e3
6 changed files with 251 additions and 42 deletions
--- a/app/core/AI.php
+++ b/app/core/AI.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace App\Core;
+
+/**
+ * Gemini AI Integration for Invoice Extraction
+ */
+class AI
+{
+    private static string $baseUrl = "https://generativelanguage.googleapis.com/v1beta/models/gemini-flash-lite-latest:generateContent";
+
+    /**
+     * Extract Data from Invoice Image or PDF (Base64)
+     */
+    public static function extractInvoiceData(string $base64Data, string $mimeType): ?array
+    {
+        $apiKey = env('GEMINI_API_KEY');
+        if (!$apiKey) {
+            error_log('AI Error: GEMINI_API_KEY is missing');
+            return null;
+        }
+
+        $prompt = "You are an expert in Jordanian E-Invoicing (UBL 2.1). 
+        Extract all data from this invoice image/document into a JSON format.
+        
+        Strict Rules:
+        1. Ensure numeric values are numbers, not strings.
+        2. Identify the Supplier TIN (Tax Identification Number) and Buyer TIN (if present).
+        3. Identify if the invoice is 'Cash' or 'Credit'.
+        4. Identify if it is 'Simplified' (B2C) or 'Standard' (B2B).
+        5. Extract line items precisely.
+        6. Return ONLY valid JSON, no markdown formatting.
+        
+        Required JSON Structure:
+        {
+            \"invoice_number\": \"\",
+            \"invoice_date\": \"YYYY-MM-DD\",
+            \"invoice_type\": \"cash|credit\",
+            \"invoice_category\": \"simplified|standard\",
+            \"supplier_tin\": \"\",
+            \"supplier_name\": \"\",
+            \"supplier_address\": \"\",
+            \"buyer_tin\": \"\",
+            \"buyer_name\": \"\",
+            \"buyer_national_id\": \"\",
+            \"subtotal\": 0.000,
+            \"tax_amount\": 0.000,
+            \"discount_total\": 0.000,
+            \"grand_total\": 0.000,
+            \"currency\": \"JOD\",
+            \"items\": [
+                {
+                    \"description\": \"\",
+                    \"quantity\": 0,
+                    \"unit_price\": 0.000,
+                    \"tax_amount\": 0.000,
+                    \"total\": 0.000
+                }
+            ]
+        }";
+
+        $payload = [
+            "contents" => [
+                [
+                    "parts" => [
+                        ["text" => $prompt],
+                        [
+                            "inline_data" => [
+                                "mime_type" => $mimeType,
+                                "data" => $base64Data
+                            ]
+                        ]
+                    ]
+                ]
+            ],
+            "generationConfig" => [
+                "response_mime_type" => "application/json"
+            ]
+        ];
+
+        $ch = curl_init(self::$baseUrl . "?key=" . $apiKey);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
+        curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
+        
+        $response = curl_exec($ch);
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($httpCode !== 200) {
+            error_log("AI Error: Gemini API returned code $httpCode. Response: " . $response);
+            return null;
+        }
+
+        $result = json_decode($response, true);
+        $textResponse = $result['candidates'][0]['content']['parts'][0]['text'] ?? null;
+
+        if (!$textResponse) return null;
+
+        return json_decode($textResponse, true);
+    }
+}