#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""
    Blockstack
    ~~~~~
    copyright: (c) 2014-2015 by Halfmoon Labs, Inc.
    copyright: (c) 2016-2018 by Blockstack.org

    This file is part of Blockstack

    Blockstack is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Blockstack is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with Blockstack. If not, see <http://www.gnu.org/licenses/>.
"""

import json
import sys
import os
import urllib2
import hashlib
import threading
import traceback
import gc
import time
from .config import RPC_SERVER_PORT

def url_to_host_port(url, port=None):
    """
    Given a URL, turn it into (host, port) for a blockstack server.
    Return (None, None) on invalid URL
    """
    if not url.startswith('http://') or not url.startswith('https://'):
        url = 'http://' + url

    if not port:
        port = RPC_SERVER_PORT

    urlinfo = urllib2.urlparse.urlparse(url)
    hostport = urlinfo.netloc

    parts = hostport.split('@')
    if len(parts) > 2:
        return None, None

    if len(parts) == 2:
        hostport = parts[1]

    parts = hostport.split(':')
    if len(parts) > 2:
        return None, None

    if len(parts) == 2:
        try:
            port = int(parts[1])
            assert 0 < port < 65535, 'Invalid port'
        except TypeError:
            return None, None

    return parts[0], port


def atlas_inventory_to_string( inv ):
    """
    Inventory to string (bitwise big-endian)
    """
    ret = ""
    for i in range(0, len(inv)):
        for j in range(0, 8):
            bit_index = 1 << (7 - j)
            val = (ord(inv[i]) & bit_index)
            if val != 0:
                ret += "1"
            else:
                ret += "0"

    return ret