from __future__ import annotations

from typing import Any
import time

from core.tools.base import BaseTool, ToolContext
from core.tools.registry import registry
from core.events import bus


class PingTool(BaseTool):
    name = "ping"
    description = "Health check / liveness probe"

    def execute(
        self,
        payload: dict[str, Any],
        ctx: ToolContext
    ) -> dict[str, Any]:
        message = payload.get("message", "pong")

        bus.log(
            "TOOLS",
            "ping_execute",
            "INFO",
            {
                "message": message
            }
        )

        return {
            "status": "ok",
            "echo": message,
            "tool": self.name,
            "timestamp": time.time()
        }


registry.register(PingTool())