import os
import random

import requests
from mcp.server.fastmcp import FastMCP

STREAMABLE_HTTP_HOST = os.getenv("STREAMABLE_HTTP_HOST", "127.0.0.1")
STREAMABLE_HTTP_PORT = int(os.getenv("STREAMABLE_HTTP_PORT", "18080"))

# Create server
mcp = FastMCP("Echo Server", host=STREAMABLE_HTTP_HOST, port=STREAMABLE_HTTP_PORT)


@mcp.tool()
def add(a: int, b: int) -> int:
    """Add two numbers"""
    print(f"[debug-server] add({a}, {b})")
    return a + b


@mcp.tool()
def get_secret_word() -> str:
    print("[debug-server] get_secret_word()")
    return random.choice(["apple", "banana", "cherry"])


@mcp.tool()
def get_current_weather(city: str) -> str:
    print(f"[debug-server] get_current_weather({city})")
    # Avoid slow or flaky network calls during automated runs.
    try:
        endpoint = "https://wttr.in"
        response = requests.get(f"{endpoint}/{city}", timeout=2)
        if response.ok:
            return response.text
    except Exception:
        pass
    # Fallback keeps the tool responsive even when offline.
    return f"Weather data unavailable right now; assume clear skies in {city}."


if __name__ == "__main__":
    mcp.run(transport="streamable-http")