Construa um bot do Telegram que compara preços entre Shopee, Lazada e Amazon

pip install python-telegram-bot buywhere-mcp

npx -y @buywhere/mcp-server

import os
import re
import subprocess
import json
from telegram import Update
from telegram.ext import (
    Application, CommandHandler, MessageHandler,
    filters, ContextTypes
)

# Carregue seu token do bot a partir do ambiente
TELEGRAM_TOKEN = os.environ["TELEGRAM_BOT_TOKEN"]

def search_products(query: str, country: str = "SG") -> list[dict]:
    """Pesquise produtos via servidor BuyWhere MCP."""
    result = subprocess.run(
        [
            "npx", "-y", "@buywhere/mcp-server",
            "search",
            "--query", query,
            "--country", country.lower(),
            "--limit", "10"
        ],
        capture_output=True, text=True, timeout=30
    )
    if result.returncode != 0:
        return []
    try:
        data = json.loads(result.stdout)
        products = data.get("products", data.get("data", []))
        return products
    except json.JSONDecodeError:
        return []

def format_price(product: dict) -> str:
    """Extraia o preço formatado do produto."""
    price_field = product.get("price", {})
    if isinstance(price_field, dict):
        amount = price_field.get("amount")
        currency = price_field.get("currency"