import base64
import json
import logging
import re
import time
from typing import Optional

import allure
from common import (
    GAS_HASH,
    MAINNET_BLOCK_TIME,
    MAINNET_SINGLE_ADDR,
    MAINNET_WALLET_PASS,
    MAINNET_WALLET_PATH,
    MORPH_ENDPOINT,
    NEO_MAINNET_ENDPOINT,
    NEOFS_CONTRACT,
    NEOGO_EXECUTABLE,
)
from neo3 import wallet as neo3_wallet
from neofs_testlib.blockchain import RPCClient
from neofs_testlib.cli import NeoGo
from neofs_testlib.shell import Shell
from neofs_testlib.utils.converters import contract_hash_to_address
from neofs_testlib.utils.wallet import get_last_address_from_wallet
from utility import parse_time

logger = logging.getLogger("NeoLogger")

EMPTY_PASSWORD = ""
TX_PERSIST_TIMEOUT = 15  # seconds
ASSET_POWER_MAINCHAIN = 10**8
ASSET_POWER_SIDECHAIN = 10**12

morph_rpc_client = RPCClient(MORPH_ENDPOINT)
mainnet_rpc_client = RPCClient(NEO_MAINNET_ENDPOINT)


def get_nns_contract_hash() -> str:
    rpc_client = RPCClient(MORPH_ENDPOINT)
    return rpc_client.get_contract_state(1)["hash"]


def get_contract_hash(resolve_name: str, shell: Shell) -> str:
    nns_contract_hash = get_nns_contract_hash()
    neogo = NeoGo(shell=shell, neo_go_exec_path=NEOGO_EXECUTABLE)
    out = neogo.contract.testinvokefunction(
        scripthash=nns_contract_hash,
        method="resolve",
        arguments=f"string:{resolve_name} int:16",
        rpc_endpoint=MORPH_ENDPOINT,
    )
    stack_data = json.loads(out.stdout.replace("\n", ""))["stack"][0]["value"]
    return bytes.decode(base64.b64decode(stack_data[0]["value"]))


@allure.step("Withdraw Mainnet Gas")
def withdraw_mainnet_gas(shell: Shell, wlt: str, amount: int):
    address = get_last_address_from_wallet(wlt, EMPTY_PASSWORD)
    scripthash = neo3_wallet.Account.address_to_script_hash(address)

    neogo = NeoGo(shell=shell, neo_go_exec_path=NEOGO_EXECUTABLE)
    out = neogo.contract.invokefunction(
        wallet=wlt,
        address=address,
        rpc_endpoint=NEO_MAINNET_ENDPOINT,
        scripthash=NEOFS_CONTRACT,
        method="withdraw",
        arguments=f"{scripthash} int:{amount}",
        multisig_hash=f"{scripthash}:Global",
        wallet_password="",
    )

    m = re.match(r"^Sent invocation transaction (\w{64})$", out.stdout)
    if m is None:
        raise Exception("Can not get Tx.")
    tx = m.group(1)
    if not transaction_accepted(tx):
        raise AssertionError(f"TX {tx} hasn't been processed")


def transaction_accepted(tx_id: str):
    """
    This function returns True in case of accepted TX.
    Args:
        tx_id(str): transaction ID
    Returns:
        (bool)
    """

    try:
        for _ in range(0, TX_PERSIST_TIMEOUT):
            time.sleep(1)
            resp = mainnet_rpc_client.get_transaction_height(tx_id)
            if resp is not None:
                logger.info(f"TX is accepted in block: {resp}")
                return True
    except Exception as out:
        logger.info(f"request failed with error: {out}")
        raise out
    return False


@allure.step("Get NeoFS Balance")
def get_balance(shell: Shell, wallet_path: str, wallet_password: str = ""):
    """
    This function returns NeoFS balance for given wallet.
    """
    with open(wallet_path) as wallet_file:
        wallet = neo3_wallet.Wallet.from_json(json.load(wallet_file), password=wallet_password)
    acc = wallet.accounts[-1]
    payload = [{"type": "Hash160", "value": str(acc.script_hash)}]
    try:
        resp = morph_rpc_client.invoke_function(
            get_contract_hash("balance.neofs", shell=shell), "balanceOf", payload
        )
        logger.info(f"Got response \n{resp}")
        value = int(resp["stack"][0]["value"])
        return value / ASSET_POWER_SIDECHAIN
    except Exception as out:
        logger.error(f"failed to get wallet balance: {out}")
        raise out


@allure.title("Transfer Gas")
def transfer_gas(
    shell: Shell,
    amount: int,
    wallet_from_path: str = MAINNET_WALLET_PATH,
    wallet_from_password: str = MAINNET_WALLET_PASS,
    address_from: str = MAINNET_SINGLE_ADDR,
    address_to: Optional[str] = None,
    wallet_to_path: Optional[str] = None,
    wallet_to_password: Optional[str] = None,
):
    """
    This function transfer GAS in main chain from mainnet wallet to
    the provided wallet. If the wallet contains more than one address,
    the assets will be transferred to the last one.
    Args:
        shell: Shell instance.
        wallet_from_password: password of the wallet; it is
            required to decode the wallet and extract its addresses
        wallet_from_path: path to chain node wallet
        address_from: the address of the wallet to transfer assets from
        wallet_to_path: the path to the wallet to transfer assets to
        wallet_to_password: the password to the wallet to transfer assets to
        address_to: the address of the wallet to transfer assets to
        amount: amount of gas to transfer
    Returns:
        (void)
    """
    address_to = address_to or get_last_address_from_wallet(wallet_to_path, wallet_to_password)

    neogo = NeoGo(shell, neo_go_exec_path=NEOGO_EXECUTABLE)
    out = neogo.nep17.transfer(
        rpc_endpoint=NEO_MAINNET_ENDPOINT,
        wallet=wallet_from_path,
        wallet_password=wallet_from_password,
        amount=amount,
        from_address=address_from,
        to_address=address_to,
        token="GAS",
        force=True,
    )
    txid = out.stdout.strip().split("\n")[-1]
    if len(txid) != 64:
        raise Exception("Got no TXID after run the command")
    if not transaction_accepted(txid):
        raise AssertionError(f"TX {txid} hasn't been processed")
    time.sleep(parse_time(MAINNET_BLOCK_TIME))


@allure.step("NeoFS Deposit")
def deposit_gas(shell: Shell, amount: int, wallet_from_path: str, wallet_from_password: str):
    """
    Transferring GAS from given wallet to NeoFS contract address.
    """
    # get NeoFS contract address
    deposit_addr = contract_hash_to_address(NEOFS_CONTRACT)
    logger.info(f"NeoFS contract address: {deposit_addr}")
    address_from = get_last_address_from_wallet(
        wallet_path=wallet_from_path, wallet_password=wallet_from_password
    )
    transfer_gas(
        shell=shell,
        amount=amount,
        wallet_from_path=wallet_from_path,
        wallet_from_password=wallet_from_password,
        address_to=deposit_addr,
        address_from=address_from,
    )


@allure.step("Get Mainnet Balance")
def get_mainnet_balance(address: str):
    resp = mainnet_rpc_client.get_nep17_balances(address=address)
    logger.info(f"Got getnep17balances response: {resp}")
    for balance in resp["balance"]:
        if balance["assethash"] == GAS_HASH:
            return float(balance["amount"]) / ASSET_POWER_MAINCHAIN
    return float(0)


@allure.step("Get Sidechain Balance")
def get_sidechain_balance(address: str):
    resp = morph_rpc_client.get_nep17_balances(address=address)
    logger.info(f"Got getnep17balances response: {resp}")
    for balance in resp["balance"]:
        if balance["assethash"] == GAS_HASH:
            return float(balance["amount"]) / ASSET_POWER_SIDECHAIN
    return float(0)