"""Configuration for the time MCP server."""
from typing import Annotated
from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict
class TimeServerConfig(BaseSettings):
"""Configuration for the time MCP server."""
model_config = SettingsConfigDict(
env_prefix="TIME_SERVER_",
env_file=".env",
env_file_encoding="utf-8",
case_sensitive=False,
extra="ignore",
)
# NTP server configuration
ntp_servers: Annotated[
list[str],
Field(
description="List of NTP servers to query for time consensus",
default=[
"time.cloudflare.com",
"time.google.com",
"time.apple.com",
"0.pool.ntp.org",
"1.pool.ntp.org",
"2.pool.ntp.org",
"3.pool.ntp.org",
],
),
]
# NTP client configuration
ntp_timeout: Annotated[
float,
Field(
description="Timeout for NTP queries in seconds",
default=2.0,
ge=0.5,
le=10.0,
),
]
# Consensus engine configuration
max_outlier_deviation_ms: Annotated[
float,
Field(
description="Maximum deviation from median to reject as outlier (milliseconds)",
default=5000.0,
ge=100.0,
le=60000.0,
),
]
min_sources: Annotated[
int,
Field(
description="Minimum number of sources required for consensus",
default=3,
ge=1,
le=10,
),
]
max_disagreement_ms: Annotated[
float,
Field(
description="Maximum disagreement before warning (milliseconds)",
default=250.0,
ge=10.0,
le=5000.0,
),
]
# Accuracy mode configuration
fast_mode_server_count: Annotated[
int,
Field(
description="Number of servers to query in fast mode",
default=4,
ge=2,
le=10,
),
]
def load_config() -> TimeServerConfig:
"""Load configuration from environment variables and .env file.
Returns:
TimeServerConfig instance
"""
return TimeServerConfig()
# Global config instance (lazily loaded)
_config: TimeServerConfig | None = None
def get_config() -> TimeServerConfig:
"""Get the global configuration instance.
Returns:
TimeServerConfig instance
"""
global _config
if _config is None:
_config = load_config()
return _config
