import os
import logging
from mcp.server.fastmcp import FastMCP
from proxmoxer import ProxmoxAPI, ProxmoxAPIException
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

# Logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

# --- Proxmox API Configuration ---
PROXMOX_URL = os.getenv("PROXMOX_URL")
PROXMOX_USER = os.getenv("PROXMOX_USER")
PROXMOX_PASSWORD = os.getenv("PROXMOX_PASSWORD")
PROXMOX_TOKEN_ID = os.getenv("PROXMOX_TOKEN_ID")
PROXMOX_VERIFY_SSL = os.getenv("PROXMOX_VERIFY_SSL", "false").lower() == "true"

# --- Initialize Proxmox Client ---
proxmox = None
if PROXMOX_URL and (PROXMOX_PASSWORD and PROXMOX_TOKEN_ID):
    try:
        proxmox = ProxmoxAPI(PROXMOX_URL, user=f"{PROXMOX_USER}@{PROXMOX_TOKEN_ID}", token_name=PROXMOX_TOKEN_ID, token_value=PROXMOX_PASSWORD, verify_ssl=PROXMOX_VERIFY_SSL)
        logger.info("Proxmox API client configured.")
    except Exception as e:
        logger.error(f"Failed to configure Proxmox API: {e}")
elif PROXMOX_URL and PROXMOX_USER and PROXMOX_PASSWORD:
     try:
        proxmox = ProxmoxAPI(PROXMOX_URL, user=PROXMOX_USER, password=PROXMOX_PASSWORD, verify_ssl=PROXMOX_VERIFY_SSL)
        logger.info("Proxmox API client configured.")
     except Exception as e:
        logger.error(f"Failed to configure Proxmox API: {e}")
else:
    logger.warning("Proxmox API credentials not fully set. Tools may fail.")

# --- FastMCP Server ---
mcp = FastMCP("Proxmox MCP")

@mcp.tool()
def list_nodes() -> dict:
    """Lists all Proxmox nodes."""
    if not proxmox: return {"error": "Proxmox API not configured"}
    return {"nodes": proxmox.nodes.get()}

@mcp.tool()
def get_cluster_resources() -> dict:
    """Gets a summary of all cluster resources."""
    if not proxmox: return {"error": "Proxmox API not configured"}
    return {"resources": proxmox.cluster.resources.get()}

@mcp.tool()
def proxmox_api_call(path: str, method: str = "GET", data: dict = {}, node: str = None, vmid: int = None, lxcid: int = None) -> dict:
    """Executes a raw Proxmox API call."""
    if not proxmox: return {"error": "Proxmox API not configured"}
    
    try:
        # Build path
        api_path = proxmox
        for segment in path.strip('/').split('/'):
            if segment == "nodes" and node: api_path = api_path.nodes(node)
            elif segment == "qemu" and vmid: api_path = api_path.qemu(vmid)
            elif segment == "lxc" and lxcid: api_path = api_path.lxc(lxcid)
            elif segment: api_path = api_path(segment)
        
        # Execute
        method_func = getattr(api_path, method.lower())
        if method.upper() in ["POST", "PUT"]:
            return {"result": method_func(**data)}
        else:
            return {"result": method_func()}
    except Exception as e:
        return {"error": str(e)}

if __name__ == "__main__":
    # FastMCP uses uvicorn internally when transport='sse' is implied or configured?
    # Actually, standard FastMCP might default to stdio. 
    # To run SSE with uvicorn, we usually do:
    mcp.run(transport="sse")