[34588f42] Feat: Freigabe-Anfrage mit Gutschein-Webhook integriert

- Datenbank um 'DiscountCode' Modell erweitert.
- Neue Backend API-Routen für Upload von Gutscheincodes, Abfrage der Verfügbarkeit und Webhook-Listener (Google Forms) zur automatischen Dankes-E-Mail erstellt.
- Frontend (App.tsx) um ein neues Tool ('Anfrage Veröffentlichung') erweitert, das anhand der CSV-Daten Platzhalter (<Name>, <Kind>, <Kindergarten>) personalisiert und Mails via Gmail versendet.
- Google Forms Webhook Script (google_forms_webhook.js) als Kopiervorlage erstellt.

fotograf-de-scraper/backend/publish_request_api.py

@@ -0,0 +1,116 @@
+from fastapi import APIRouter, Depends, HTTPException, Request
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+from database import get_db, DiscountCode
+import datetime
+import logging
+from gmail_service import GmailService
+import re
+
+router = APIRouter(prefix="/api/publish-request", tags=["publish-request"])
+logger = logging.getLogger("publish-request")
+
+class CodesUpload(BaseModel):
+    codes: str # comma separated
+
+@router.get("/stats")
+def get_stats(db: Session = Depends(get_db)):
+    total = db.query(DiscountCode).count()
+    used = db.query(DiscountCode).filter(DiscountCode.is_used == 1).count()
+    available = total - used
+    return {"total": total, "used": used, "available": available}
+
+@router.post("/codes")
+def upload_codes(data: CodesUpload, db: Session = Depends(get_db)):
+    codes_list = [c.strip() for c in data.codes.split(",") if c.strip()]
+    added = 0
+    for code in set(codes_list):
+        existing = db.query(DiscountCode).filter(DiscountCode.code == code).first()
+        if not existing:
+            new_code = DiscountCode(code=code, is_used=0)
+            db.add(new_code)
+            added += 1
+    db.commit()
+    return {"status": "success", "added": added}
+
+class WebhookData(BaseModel):
+    email: str
+
+@router.post("/webhook")
+async def handle_webhook(request: Request, db: Session = Depends(get_db)):
+    # Try to parse JSON from Google Forms webhook
+    try:
+        data = await request.json()
+    except:
+        raise HTTPException(status_code=400, detail="Invalid JSON")
+    
+    # We expect {"email": "..."} or similar from the Google Apps Script
+    email = data.get("email") or data.get("Email")
+    if not email:
+        logger.error(f"Webhook received without email: {data}")
+        return {"status": "error", "message": "Email not found in webhook payload"}
+        
+    email = email.strip().lower()
+    
+    # Check if this email already got a code
+    already_assigned = db.query(DiscountCode).filter(DiscountCode.assigned_to_email == email).first()
+    if already_assigned:
+        logger.info(f"Email {email} already received code {already_assigned.code}")
+        return {"status": "success", "message": "Already sent"}
+
+    # Get a free code
+    free_code = db.query(DiscountCode).filter(DiscountCode.is_used == 0).first()
+    if not free_code:
+        logger.error("NO FREE DISCOUNT CODES LEFT!")
+        # Fallback logic: Notify admin? 
+        return {"status": "error", "message": "No codes available"}
+
+    # Mark as used
+    free_code.is_used = 1
+    free_code.assigned_to_email = email
+    free_code.used_at = datetime.datetime.utcnow()
+    db.commit()
+
+    # Send Thank You Email with GmailService
+    service = GmailService(db)
+    subject = "Dankeschön für Eure Freigabe & Euer Rabattcode"
+    
+    # HTML Signature from frontend
+    SIGNATURE_HTML = """
+    <br><br><br>
+    <div style="font-family: 'Verdana', sans-serif; font-size: 11px; color: #3D3C3F;">
+        <p><strong>Liebe Grüße,</strong><br>Euer Team von Kinderfotos Erding</p>
+        <p><strong>Zierl Fotografen GmbH</strong><br>
+        Anton-Bruckner-Straße 5<br>85435 Erding</p>
+        <p><a href="https://www.kinderfotos-erding.de" style="color: #3D3C3F; text-decoration: none;">www.kinderfotos-erding.de</a></p>
+    </div>
+    """
+
+    body_html = f"""
+    <p>Hallo,</p>
+    <p>vielen Dank für Eure Unterstützung und das Ausfüllen der Freigabe!</p>
+    <p>Als kleines Dankeschön hier Euer 25 € Rabattcode für Eure Bestellung:</p>
+    <p><strong style="font-size: 18px; color: #4F46E5; padding: 10px; border: 1px dashed #4F46E5; display: inline-block;">{free_code.code}</strong></p>
+    <p>Bitte wartet mit Eurer Bestellung, falls Ihr noch nicht bestellt habt, bis Ihr diesen Code an der Kasse einlösen könnt.</p>
+    {SIGNATURE_HTML}
+    """
+    
+    try:
+        success = service.send_email(email, subject, body_html)
+        if success:
+            logger.info(f"Successfully sent code {free_code.code} to {email}")
+            return {"status": "success", "message": "Email sent"}
+        else:
+            logger.error(f"Failed to send email to {email}")
+            free_code.is_used = 0
+            free_code.assigned_to_email = None
+            free_code.used_at = None
+            db.commit()
+            return {"status": "error", "message": "Failed to send email"}
+    except Exception as e:
+        logger.exception("Error sending webhook email")
+        free_code.is_used = 0
+        free_code.assigned_to_email = None
+        free_code.used_at = None
+        db.commit()
+        return {"status": "error", "message": str(e)}