"""PodHome MCP Server - Configuration Module."""
import json
import logging
from typing import Dict
from pydantic import Field, SecretStr, field_validator
from pydantic_settings import BaseSettings, SettingsConfigDict
logger = logging.getLogger(__name__)
class Config(BaseSettings):
"""Configuration for the PodHome MCP server."""
base_url: str = Field("https://serve.podhome.fm", alias="PODHOME_BASE_URL")
shows: Dict[str, SecretStr] = Field(
..., description="show_slug -> API key mapping", alias="PODHOME_SHOWS"
)
model_config = SettingsConfigDict(
populate_by_name=True,
extra="ignore",
)
@field_validator("shows", mode="before")
@classmethod
def parse_shows_json(cls, v):
"""Parse PODHOME_SHOWS JSON string into a dict of SecretStr."""
if isinstance(v, str):
try:
raw = json.loads(v)
return {k.strip(): SecretStr(str(raw[k])) for k in raw}
except Exception as e:
raise ValueError(f"PODHOME_SHOWS must be valid JSON dict: {e}")
if isinstance(v, dict):
return {k.strip(): SecretStr(str(value)) for k, value in v.items()}
raise ValueError("PODHOME_SHOWS must be a JSON string or dict")
def get_api_key(self, show: str) -> str:
"""Get the API key for a specific show."""
if show not in self.shows:
raise ValueError(
f"Unknown show '{show}'. Configured shows: {list(self.shows.keys())}"
)
return self.shows[show].get_secret_value()
def load_config() -> Config:
"""Load and return the configuration."""
cfg = Config() # type: ignore[call-arg]
logger.info("Loaded Podhome shows: %s", list(cfg.shows.keys()))
return cfg
