- Added EveAI Client to project

- Improvements to EntitlementsDomain & Services
- Prechecks in Document domain
- Add audit information to LicenseUsage

eveai_client/platform/auth/auth_manager.py

@@ -0,0 +1,61 @@
+import time
+import requests
+from typing import Dict
+from eveai_client.platform.config.config import Config
+from flask import current_app, Flask
+
+
+class AuthManager:
+    """Handles authentication and token management for the EveAI client."""
+
+    def __init__(self):
+        """Initialize the authentication manager."""
+        self.token_cache: Dict[str, any] = {}
+        self.api_base_url = None
+        self.tenant_id = None
+        self.api_key = None
+
+    def init_app(self, app: Flask) -> None:
+        self.api_base_url = app.config['API_BASE_URL']
+        self.tenant_id = app.config['TENANT_ID']
+        self.api_key = app.config['API_KEY']
+
+    def get_token(self) -> str:
+        """Get a valid authentication token."""
+        if self._is_token_valid():
+            return self.token_cache['token']
+
+        return self._fetch_new_token()
+
+    def _is_token_valid(self) -> bool:
+        """Check if the cached token is still valid."""
+        if not self.token_cache:
+            return False
+
+        # Check expiry with 30s buffer
+        return time.time() < self.token_cache['expiry'] - 30
+
+    def _fetch_new_token(self) -> str:
+        """Fetch a new token from the API."""
+        response = requests.post(
+            f"{self.api_base_url}/api/v1/auth/token",
+            json={
+                "tenant_id": int(self.tenant_id),
+                "api_key": self.api_key
+            }
+        )
+
+        if response.status_code != 200:
+            raise Exception(f"Authentication failed: {response.text}")
+
+        token_data = response.json()
+        self.token_cache = {
+            'token': token_data['access_token'],
+            'expiry': time.time() + token_data.get('expires_in', 3600)  # Default 1 hour
+        }
+
+        return self.token_cache['token']
+
+    def clear_token(self) -> None:
+        """Clear the cached token."""
+        self.token_cache = {}