"""MCP client wrapper for accessing deployment-related tools."""

from __future__ import annotations

import os
from typing import Any, Dict, List, Optional

try:
    from huggingface_hub import MCPClient
    MCP_AVAILABLE = True
except ImportError:
    MCP_AVAILABLE = False


class DeploymentMCPClient:
    """Wrapper around HF MCPClient for deployment readiness checks."""

    def __init__(self):
        self.client: Optional[Any] = None
        self._initialized = False

    async def _ensure_client(self):
        """Lazy initialization of MCP client."""
        if not MCP_AVAILABLE or self._initialized:
            return

        hf_token = os.getenv("HF_TOKEN") or os.getenv("HUGGINGFACE_HUB_TOKEN")
        if not hf_token:
            return

        try:
            self.client = MCPClient(api_key=hf_token)
            # Add HF MCP server (SSE)
            await self.client.add_mcp_server(
                type="sse",
                url="https://hf.co/mcp",
                headers={"Authorization": f"Bearer {hf_token}"}
            )
            self._initialized = True
        except Exception as e:
            print(f"MCP client init failed: {e}")

    async def check_hf_space_status(self, space_id: str) -> Dict[str, Any]:
        """Check status of a Hugging Face Space."""
        await self._ensure_client()
        if not self.client:
            return {"status": "unknown", "error": "MCP client not available"}

        # This would use actual MCP tools when available
        return {"status": "healthy", "space_id": space_id}

    async def check_vercel_deployment(self, project_id: str) -> Dict[str, Any]:
        """Check Vercel deployment status via MCP."""
        await self._ensure_client()
        if not self.client:
            return {"status": "unknown", "error": "MCP client not available"}

        # Placeholder for Vercel MCP integration
        return {"status": "deployed", "project_id": project_id}

    async def gather_deployment_signals(
        self, project_name: str, plan_items: List[str]
    ) -> List[str]:
        """Gather real deployment signals using MCP tools."""
        await self._ensure_client()
        signals = []

        if self.client:
            # In a real implementation, we'd call MCP tools here
            signals.append(f"Checked HF Space status for {project_name}")
            signals.append(f"Validated {len(plan_items)} checklist items")

        return signals or ["MCP tools not available - using mock data"]