from __future__ import annotations

import os
import sys
import importlib
from pathlib import Path
from typing import Any

from fastapi import FastAPI

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

app = FastAPI(title="stanza-mcp-info", version="1.0.0")


@app.get("/")
def root() -> dict[str, Any]:
    return {
        "name": "stanza MCP Service",
        "description": "Supplementary info app for local development.",
        "mcp_entrypoint": "stanza/mcp_output/start_mcp.py",
        "mcp_http_endpoint": "/mcp",
    }


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


@app.get("/tools")
def tools() -> dict[str, Any]:
    try:
        module = importlib.import_module("mcp_service")
        create_app = getattr(module, "create_app")
        mcp = create_app()
        tool_records: list[dict[str, Any]] = []

        registry = getattr(mcp, "tools", None)
        if registry is None:
            registry = getattr(mcp, "_tools", None)

        if isinstance(registry, dict):
            for name, tool_obj in registry.items():
                desc = getattr(tool_obj, "description", "")
                tool_records.append({"name": str(name), "description": desc})
        elif registry is not None:
            for tool_obj in registry:
                name = getattr(tool_obj, "name", str(tool_obj))
                desc = getattr(tool_obj, "description", "")
                tool_records.append({"name": name, "description": desc})

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


if __name__ == "__main__":
    import uvicorn

    port = int(os.getenv("PORT", "7860"))
    uvicorn.run(app, host="0.0.0.0", port=port)