feat: add catalogue check by creating a small service runner

api_service.py

@@ -0,0 +1,67 @@
+"""
+Lightweight Python API service for signature validation
+This can run independently to support the PHP application
+"""
+from fastapi import FastAPI, Query
+from fastapi.responses import JSONResponse
+from fastapi.middleware.cors import CORSMiddleware
+from bibapi import catalogue
+import re
+import os
+
+app = FastAPI(title="Signature Validation API")
+
+# Allow PHP application to call this API
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # In production, restrict to your PHP server domain
+    allow_credentials=True,
+    allow_methods=["GET"],
+    allow_headers=["*"],
+)
+
+# Initialize catalogue for signature validation
+cat = catalogue.Catalogue()
+
+@app.get("/api/validate-signature")
+async def validate_signature(signature: str = Query(...)):
+    """Validate a book signature and return total pages"""
+    try:
+        book_result = cat.get_book_with_data(signature)
+        if book_result and hasattr(book_result, "pages") and book_result.pages:
+            # Try to extract numeric page count
+            pages_str = str(book_result.pages)
+            # Extract first number from pages string (e.g., "245 S." -> 245)
+            match = re.search(r"(\d+)", pages_str)
+            if match:
+                total_pages = int(match.group(1))
+                return JSONResponse(
+                    {"valid": True, "total_pages": total_pages, "signature": signature}
+                )
+
+        return JSONResponse(
+            {
+                "valid": False,
+                "error": "Signatur nicht gefunden oder keine Seitenzahl verfügbar",
+                "signature": signature,
+            }
+        )
+    except Exception as e:
+        return JSONResponse(
+            {
+                "valid": False,
+                "error": f"Fehler bei der Validierung: {str(e)}",
+                "signature": signature,
+            },
+            status_code=500
+        )
+
+@app.get("/health")
+async def health_check():
+    """Health check endpoint"""
+    return {"status": "ok", "service": "signature-validation"}
+
+if __name__ == "__main__":
+    import uvicorn
+    port = int(os.getenv("API_PORT", "8001"))
+    uvicorn.run(app, host="0.0.0.0", port=port)