#!/usr/bin/env python3
"""Hello World MCP server using UV runtime."""

import asyncio
from mcp.server.models import InitializationOptions
import mcp.types as types
from mcp.server import NotificationOptions, Server
import mcp.server.stdio


server = Server("hello-world-uv")


@server.list_tools()
async def handle_list_tools() -> list[types.Tool]:
    """List available tools."""
    return [
        types.Tool(
            name="say_hello",
            description="Say hello to someone",
            inputSchema={
                "type": "object",
                "properties": {
                    "name": {
                        "type": "string",
                        "description": "Name to greet",
                    }
                },
                "required": ["name"],
            },
        )
    ]


@server.call_tool()
async def handle_call_tool(
    name: str, arguments: dict | None
) -> list[types.TextContent | types.ImageContent | types.EmbeddedResource]:
    """Handle tool calls."""
    if name == "say_hello":
        person_name = arguments.get("name", "World") if arguments else "World"
        return [types.TextContent(type="text", text=f"Hello, {person_name}!")]

    raise ValueError(f"Unknown tool: {name}")


async def main():
    """Run the server."""
    async with mcp.server.stdio.stdio_server() as (read_stream, write_stream):
        await server.run(
            read_stream,
            write_stream,
            InitializationOptions(
                server_name="hello-world-uv",
                server_version="1.0.0",
                capabilities=server.get_capabilities(
                    notification_options=NotificationOptions(),
                    experimental_capabilities={},
                ),
            ),
        )


if __name__ == "__main__":
    asyncio.run(main())