first commit

public_web/app/config.py

@@ -0,0 +1,87 @@
+"""
+Configuration loader for Public Web Frontend
+
+Loads environment-specific configuration from YAML files.
+"""
+
+import yaml
+import os
+from pathlib import Path
+from dataclasses import dataclass
+from typing import Optional
+import structlog
+
+
+logger = structlog.get_logger(__name__)
+
+
+@dataclass
+class ServerConfig:
+    """Server configuration settings."""
+    host: str
+    port: int
+    debug: bool
+    workers: int = 4
+
+
+@dataclass
+class APIConfig:
+    """API backend configuration."""
+    base_url: str
+    timeout: int = 30
+    verify_ssl: bool = True
+
+
+@dataclass
+class SessionConfig:
+    """Session configuration."""
+    lifetime_hours: int
+    cookie_secure: bool
+    cookie_httponly: bool
+    cookie_samesite: str
+
+
+@dataclass
+class Config:
+    """Main configuration object."""
+    server: ServerConfig
+    api: APIConfig
+    session: SessionConfig
+    environment: str
+
+
+def load_config(environment: Optional[str] = None) -> Config:
+    """
+    Load configuration from YAML file.
+
+    Args:
+        environment: Environment name (development, production). If None, uses FLASK_ENV env var.
+
+    Returns:
+        Config object with all settings.
+    """
+    if environment is None:
+        environment = os.getenv("FLASK_ENV", "development")
+
+    config_dir = Path(__file__).parent.parent / "config"
+    config_path = config_dir / f"{environment}.yaml"
+
+    if not config_path.exists():
+        raise FileNotFoundError(f"Configuration file not found: {config_path}")
+
+    with open(config_path, 'r') as f:
+        data = yaml.safe_load(f)
+
+    config = Config(
+        server=ServerConfig(**data['server']),
+        api=APIConfig(**data['api']),
+        session=SessionConfig(**data['session']),
+        environment=environment
+    )
+
+    logger.info("config_loaded",
+                environment=environment,
+                api_url=config.api.base_url,
+                server_port=config.server.port)
+
+    return config