"""Configuration management using Pydantic Settings."""
from functools import lru_cache
from pydantic_settings import BaseSettings, SettingsConfigDict
class Settings(BaseSettings):
"""Application settings."""
model_config = SettingsConfigDict(
env_file=".env",
env_file_encoding="utf-8",
case_sensitive=False,
extra="ignore", # Ignore extra fields in .env
)
# Server settings
host: str = "0.0.0.0" # nosec B104
port: int = 8000
log_level: str = "INFO"
# API Key settings
# Format: "sk-xxx:2025-12-31,sk-yyy:2026-06-30" or "sk-xxx,sk-yyy" (no expiry)
api_keys: str = ""
# Conversion settings
max_file_size_mb: int = 50
conversion_timeout: int = 60 # seconds
# Service info
service_name: str = "pandoc-bridge"
service_version: str = "1.0.0"
@property
def max_file_size_bytes(self) -> int:
"""Return max file size in bytes."""
return self.max_file_size_mb * 1024 * 1024
def get_api_keys(self) -> dict[str, str | None]:
"""Get dict of API keys with their expiry dates.
Returns:
Dict mapping API key to expiry date string (YYYY-MM-DD) or None
"""
if not self.api_keys:
return {}
result: dict[str, str | None] = {}
for item in self.api_keys.split(","):
item = item.strip()
if not item:
continue
if ":" in item:
key, expiry = item.split(":", 1)
result[key.strip()] = expiry.strip()
else:
result[item] = None
return result
@lru_cache
def get_settings() -> Settings:
"""Get cached settings instance."""
return Settings()
