"""Configuration for Healthcare API MCP."""

import os
from typing import List, Optional
from pydantic import BaseModel, Field


class ProviderConfig(BaseModel):
    """Configuration for a provider."""
    name: str
    enabled: bool = True
    api_key: Optional[str] = None


class MCPConfig(BaseModel):
    """Main MCP server configuration."""

    # Enabled providers (comma-separated or list)
    enabled_providers: List[str] = Field(
        default_factory=lambda: ["openfda", "clinical_guidelines", "cms_pricing"]
    )

    # OpenFDA API key (optional but recommended for higher rate limits)
    openfda_api_key: Optional[str] = Field(default=None)

    # Logging level
    log_level: str = Field(default="INFO")

    @classmethod
    def from_env(cls) -> "MCPConfig":
        """Load configuration from environment variables."""

        # Parse enabled providers
        enabled_str = os.getenv("ENABLED_PROVIDERS", "")
        if enabled_str:
            enabled_providers = [p.strip() for p in enabled_str.split(",")]
        else:
            enabled_providers = ["openfda", "clinical_guidelines", "cms_pricing"]

        return cls(
            enabled_providers=enabled_providers,
            openfda_api_key=os.getenv("OPENFDA_API_KEY"),
            log_level=os.getenv("LOG_LEVEL", "INFO")
        )