create schema if not existing

Dockerfile

@@ -6,6 +6,7 @@ COPY requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir -r /app/requirements.txt
 
 COPY src/ /app/
+COPY sql/ /app/sql/
 COPY docker/entrypoint.sh /usr/local/bin/entrypoint.sh
 RUN chmod +x /usr/local/bin/entrypoint.sh
 

src/db.py

@@ -1,5 +1,6 @@
 """MariaDB-Anbindung: Delta-Sync-Strategie (Upsert für Änderungen, gezieltes Löschen für Removals)."""
 import logging
+import os
 import uuid
 from contextlib import contextmanager
 
@@ -10,6 +11,8 @@ from config import Config
 
 logger = logging.getLogger(__name__)
 
+SCHEMA_PATH = os.path.join(os.path.dirname(__file__), "..", "sql", "schema.sql")
+
 
 @contextmanager
 def get_connection():
@@ -24,6 +27,24 @@ def get_connection():
         conn.close()
 
 
+def ensure_schema():
+    """Legt alle Tabellen an, falls sie noch nicht existieren (idempotent)."""
+    schema_file = os.path.normpath(SCHEMA_PATH)
+    if not os.path.exists(schema_file):
+        logger.warning("Schema-Datei nicht gefunden: %s — überspringe Init", schema_file)
+        return
+    with open(schema_file, "r", encoding="utf-8") as f:
+        sql = f.read()
+    with get_connection() as conn:
+        with conn.cursor() as cur:
+            for statement in sql.split(";"):
+                statement = statement.strip()
+                if statement:
+                    cur.execute(statement)
+        conn.commit()
+    logger.info("Datenbank-Schema geprüft/initialisiert")
+
+
 def get_sync_token(conn, account: str) -> str | None:
     with conn.cursor() as cur:
         cur.execute("SELECT sync_token FROM sync_state WHERE account = %s", (account,))

src/scheduler.py

@@ -16,6 +16,8 @@ import sys
 import time
 from datetime import datetime, timedelta
 
+import db
+
 logging.basicConfig(
     level=os.environ.get("LOG_LEVEL", "INFO"),
     format="%(asctime)s [%(levelname)s] %(message)s",
@@ -90,6 +92,12 @@ def main():
     else:
         logger.info("Mailer: deaktiviert (MAILER_ENABLED=false)")
 
+    logger.info("Pruefe/initialisiere Datenbank-Schema...")
+    try:
+        db.ensure_schema()
+    except Exception:
+        logger.exception("Schema-Init fehlgeschlagen — Sync wird trotzdem gestartet")
+
     logger.info("Fuehre initialen Sync aus...")
     run_sync()