Add centralized constants module and .env configuration support

app/firewall.py

@@ -13,23 +13,18 @@ import paramiko
 from datetime import datetime
 import shlex
 from typing import Iterable
+from .constants import (
+    BLOCKLIST_NAME,
+    REPORT_DIR,
+    ROUTER_IP,
+    ROUTER_PASSWORD,
+    ROUTER_USER,
+    SSH_PORT,
+    SSH_TIMEOUT,
+    WHITELIST_NAMES,
+)
 from .ip_utils import is_whitelisted
 
-DATA_DIR = os.path.join(os.path.dirname(os.path.dirname(
-    os.path.abspath(__file__))), "data", "mikrotik")
-REPORT_DIR = os.path.join(os.path.dirname(
-    os.path.dirname(os.path.abspath(__file__))), "reports")
-MIKROTIK_DATA_DIR = os.path.join(REPORT_DIR, "mikrotik", "data")
-
-SSH_TIMEOUT = 10  # seconds
-SSH_PORT = 22
-ROUTER_IP = os.environ.get("ROUTER_IP", "192.168.88.1")
-ROUTER_USER = os.environ.get("ROUTER_USER", "admin")
-ROUTER_PASSWORD = os.environ.get("ROUTER_PASSWORD", "M11ffpgm")
-BLOCKLIST_NAME = os.environ.get("BLOCKLIST_NAME", "Blocked")
-WHITELIST_NAMES = os.environ.get(
-    "WHITELIST_NAMES", "Cloudflare,Openfactory").split(",")
-
 
 class MikrotikFirewall:
     """