#!/usr/bin/env python3
# Copyright (c) 2020 The Bitcoin Unlimited developers
import asyncio
from test_framework.util import assert_equal
from test_framework.test_framework import BitcoinTestFramework
from test_framework.electrumconnection import ElectrumConnection


def versiontuple(v):
    v = tuple(map(int, (v.split("."))))
    if len(v) == 2:
        v = v + (0,)
    return v


class ElectrumBasicTests(BitcoinTestFramework):
    def __init__(self):
        super().__init__()
        self.setup_clean_chain = True
        self.num_nodes = 1

    async def run_test(self):
        n = self.nodes[0]

        # Bump out of IBD
        n.generate(1)

        electrum_client = ElectrumConnection()
        await electrum_client.connect()
        res = await electrum_client.call("server.features")

        # Keys that the server MUST support
        assert_equal(n.getblockhash(0), res["genesis_hash"])
        assert_equal("sha256", res["hash_function"])
        assert versiontuple(res["protocol_min"]) >= versiontuple("1.4")
        assert versiontuple(res["protocol_max"]) >= versiontuple("1.4")
        assert len(res["server_version"])

        electrum_client.disconnect()


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