import requests
from web3 import Web3
from .core import HutStealthEngine

class ProClient:
    """
    HUT-Pay SDK Client
    用于处理隐私支付、自动结算与会话密钥管理
    """
    def __init__(self, api_key, private_key=None, rpc_url="https://mainnet.base.org"):
        self.api_key = api_key
        self.priv_key = private_key
        self.engine = HutStealthEngine()
        self.w3 = Web3(Web3.HTTPProvider(rpc_url))
        self.base_url = "https://api.hutmini.com/v1"

    def execute_stealth_pay(self, receiver_id, amount, currency="USDC"):
        """
        执行一笔隐私支付
        1. 获取接收方的永久公钥
        2. 生成一次性隐身地址
        3. 执行链上转账 (或者通过 API 触发托管)
        """
        # 演示逻辑：在生产环境中，这会调用 API 获取公钥并执行合约交互
        print(f"🔒 隐私保护已开启")
        print(f"🚀 Initiating stealth payment of {amount} {currency} to {receiver_id}...")
        
        # 模拟公钥获取 (已生成合法 Secp256k1 公钥坐标)
        fake_pub_key = "04253c1590a6baa20b1c9f01f968ce4582897582c1e45327b6921348f293d6710714177873d9e938dc56a507ff46fc5c066906045416ce62252fc1d218c239929c"
        
        # 生成隐私地址
        stealth_addr, ephemeral_key = self.engine.generate_stealth_address(fake_pub_key)
        
        print(f"📡 正在向隐身地址 {stealth_addr} 发起支付...")
        
        return {
            "status": "success", 
            "stealth_address": stealth_addr, 
            "ephemeral_key": ephemeral_key,
            "tx_hash": "0x..."
        }

    def get_balance(self, wallet_address):
        """查看当前金库余额"""
        # 调用合约或 API 查看余额
        pass
