Add a cli interface to choose a configuration (#163)

- [x] add a cli to the webserver to take env variables into account 
- [x] add a cli to the data processing that takes enviromental variable
as a valid source into account
- [x] rework the cli for the reset sql command
- [x] rework the cli for the copying of sql data from one db to another

tests/utils/sql/copy_sql_test.py

@@ -1,13 +1,20 @@
 """Test if the sql db can be copied."""
 import os
+import sys
 from collections.abc import Generator
 
 import pandas as pd
 import pytest
+from _pytest.monkeypatch import MonkeyPatch
 from sqlalchemy.engine import Engine
-from sqlalchemy.orm import Session
+from sqlalchemy.orm import Session, sessionmaker
 
-from aki_prj23_transparenzregister.utils.sql.connector import Base, get_session, init_db
+from aki_prj23_transparenzregister.config.config_template import SQLiteConnectionString
+from aki_prj23_transparenzregister.utils.sql.connector import (
+    Base,
+    get_engine,
+    init_db,
+)
 from aki_prj23_transparenzregister.utils.sql.copy_sql import (
     copy_db_cli,
     transfer_db_function,
@@ -19,7 +26,13 @@ def destination_db() -> Generator[Session, None, None]:
     """Generates a db Session to a sqlite db to copy data to."""
     if os.path.exists("secondary.db"):
         os.remove("secondary.db")
-    db = get_session("sqlite:///secondary.db")
+
+    db = sessionmaker(
+        autocommit=False,
+        autoflush=False,
+        bind=get_engine(SQLiteConnectionString("secondary.db")),
+    )()
+
     init_db(db)
     yield db
     db.close()
@@ -44,13 +57,15 @@ def test_transfer_db(full_db: Session, destination_db: Session) -> None:
         )
 
 
-def test_copy_db_cli_help1() -> None:
+def test_copy_db_cli_help1(monkeypatch: MonkeyPatch) -> None:
     """Tests if the help argument exits the software gracefully."""
-    with pytest.raises(SystemExit):
-        copy_db_cli(["-h"])
+    with monkeypatch.context() as m, pytest.raises(SystemExit):  # noqa: PT012
+        m.setattr(sys, "argv", [sys.argv[0], "-h"])
+        copy_db_cli()
 
 
-def test_copy_db_cli_help2() -> None:
+def test_copy_db_cli_help2(monkeypatch: MonkeyPatch) -> None:
     """Tests if the help argument exits the software gracefully."""
-    with pytest.raises(SystemExit):
-        copy_db_cli(["eskse", "-h", "asdf"])
+    with monkeypatch.context() as m, pytest.raises(SystemExit):  # noqa: PT012
+        m.setattr(sys, "argv", [sys.argv[0], "eskse", "-h", "asdf"])
+        copy_db_cli()