from __future__ import annotations

import os
from pathlib import Path
import sys

from fastapi import FastAPI


BASE_DIR = Path(__file__).resolve().parent
PLUGIN_DIR = BASE_DIR / "biotite" / "mcp_output" / "mcp_plugin"
if str(PLUGIN_DIR) not in sys.path:
    sys.path.insert(0, str(PLUGIN_DIR))


app = FastAPI(title="Biotite MCP Supplementary App", version="1.0.0")


@app.get("/")
def info() -> dict:
    return {
        "service": "biotite-mcp",
        "description": "Supplementary info API for the Biotite MCP deployment",
        "mcp_entrypoint": "biotite/mcp_output/start_mcp.py",
        "mcp_transport_env": "MCP_TRANSPORT",
        "port_env": "PORT",
    }


@app.get("/health")
def health() -> dict:
    return {"status": "healthy"}


@app.get("/tools")
def tools() -> dict:
    try:
        from mcp_service import create_app

        mcp = create_app()
        tool_items = []

        tools_obj = getattr(mcp, "tools", None)
        if isinstance(tools_obj, dict):
            iterable = tools_obj.items()
            for name, tool in iterable:
                description = getattr(tool, "description", "")
                tool_items.append({"name": name, "description": description})
        elif isinstance(tools_obj, list):
            for tool in tools_obj:
                name = getattr(tool, "name", "unknown")
                description = getattr(tool, "description", "")
                tool_items.append({"name": name, "description": description})

        return {"count": len(tool_items), "tools": tool_items}
    except Exception as exc:
        return {"count": 0, "tools": [], "error": str(exc)}


PORT = int(os.getenv("PORT", "7860"))


if __name__ == "__main__":
    import uvicorn

    uvicorn.run(app, host="0.0.0.0", port=PORT)