Rename project to ddns-service

src/ddns_service/app.py

@@ -0,0 +1,64 @@
+"""Application class - central dependency holder."""
+
+import logging
+import threading
+
+import argon2
+
+from .dns import DNSService
+from .email import EmailService
+from .models import init_database
+from .ratelimit import RateLimiter
+
+
+class Application:
+    """
+    Central application state holder.
+
+    Holds configuration and all service instances.
+    """
+
+    def __init__(self, config):
+        """
+        Initialize application with configuration.
+
+        Args:
+            config: Configuration dictionary from TOML file.
+        """
+        self.config = config
+        self.password_hasher = argon2.PasswordHasher()
+        self.shutdown_event = threading.Event()
+
+        # Service instances (initialized separately)
+        self.dns_service = None
+        self.email_service = None
+        self.rate_limiter = None
+
+    def init_database(self):
+        """Initialize database connection."""
+        init_database(self.config)
+        logging.info("Database initialized")
+
+    def init_dns(self):
+        """Initialize DNS service."""
+        self.dns_service = DNSService(self.config)
+        logging.info("DNS service initialized")
+
+    def init_email(self):
+        """Initialize email service."""
+        self.email_service = EmailService(self.config)
+        logging.info("Email service initialized")
+
+    def init_rate_limiter(self):
+        """Initialize rate limiter."""
+        self.rate_limiter = RateLimiter(self.config)
+        logging.info("Rate limiter initialized")
+
+    def signal_shutdown(self):
+        """Signal the application to shut down."""
+        logging.info("Shutdown signaled")
+        self.shutdown_event.set()
+
+    def is_shutting_down(self):
+        """Check if shutdown has been signaled."""
+        return self.shutdown_event.is_set()