# -*- coding: utf-8 -*-

#

# Electrum - lightweight Bitcoin client

# Copyright (C) 2018 The Electrum developers

#

# Permission is hereby granted, free of charge, to any person

# obtaining a copy of this software and associated documentation files

# (the "Software"), to deal in the Software without restriction,

# including without limitation the rights to use, copy, modify, merge,

# publish, distribute, sublicense, and/or sell copies of the Software,

# and to permit persons to whom the Software is furnished to do so,

# subject to the following conditions:

#

# The above copyright notice and this permission notice shall be

# included in all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

# SOFTWARE.

import os

import json

def read_json(filename, default):

path = os.path.join(os.path.dirname(__file__), filename)

try:

with open(path, 'r') as f:

r = json.loads(f.read())

except:

r = default

return r

class BitcoinMainnet:

TESTNET = False

WIF_PREFIX = 0xbf

ADDRTYPE_P2PKH = 63

ADDRTYPE_P2SH = 125

SEGWIT_HRP = "bc"

GENESIS = "00001123368370feb0997f471423e4445be205b9947e7053c762886317274d2a"

GENESISHEADER = "01000000000000000000000000000000000000000000000000000000000000000000000071d421923dc1e066a5d70e9c5b6f94b15e4766b14910666d76554cacf78638b74747b95affff1f1eca057100"

DEFAULT_PORTS = {'t': '50001', 's': '50002'}

DEFAULT_SERVERS = read_json('servers.json', {})

CHECKPOINTS = read_json('checkpoints.json', [])

XPRV_HEADERS = {

'standard': 0x0488ade4, # xprv

'p2wpkh-p2sh': 0x049d7878, # yprv

'p2wsh-p2sh': 0x0295b005, # Yprv

'p2wpkh': 0x04b2430c, # zprv

'p2wsh': 0x02aa7a99, # Zprv

}

XPUB_HEADERS = {

'standard': 0x0488b21e, # xpub

'p2wpkh-p2sh': 0x049d7cb2, # ypub

'p2wsh-p2sh': 0x0295b43f, # Ypub

'p2wpkh': 0x04b24746, # zpub

'p2wsh': 0x02aa7ed3, # Zpub

}

class BitcoinTestnet:

TESTNET = True

WIF_PREFIX = 0xc1

ADDRTYPE_P2PKH = 65

ADDRTYPE_P2SH = 196

SEGWIT_HRP = "tb"

GENESIS = "00000089c09ef97712b7bde5994e6eb1c6f237cc119a86b77b92c28ef411e2f2"

GENESISHEADER = "01000000000000000000000000000000000000000000000000000000000000000000000071d421923dc1e066a5d70e9c5b6f94b15e4766b14910666d76554cacf78638b7db3e0b59ffff001ff9d04400"

DEFAULT_PORTS = {'t': '51001', 's': '51002'}

DEFAULT_SERVERS = read_json('servers_testnet.json', {})

CHECKPOINTS = read_json('checkpoints_testnet.json', [])

XPRV_HEADERS = {

'standard': 0x04358394, # tprv

'p2wpkh-p2sh': 0x044a4e28, # uprv

'p2wsh-p2sh': 0x024285b5, # Uprv

'p2wpkh': 0x045f18bc, # vprv

'p2wsh': 0x02575048, # Vprv

}

XPUB_HEADERS = {

'standard': 0x043587cf, # tpub

'p2wpkh-p2sh': 0x044a5262, # upub

'p2wsh-p2sh': 0x024289ef, # Upub

'p2wpkh': 0x045f1cf6, # vpub

'p2wsh': 0x02575483, # Vpub

}

class BitcoinRegtest(BitcoinTestnet):

SEGWIT_HRP = "bcrt"

GENESIS = "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"

DEFAULT_SERVERS = read_json('servers_regtest.json', {})

CHECKPOINTS = []

# don't import net directly, import the module instead (so that net is singleton)

net = BitcoinMainnet

def set_mainnet():

global net

net = BitcoinMainnet

def set_testnet():

global net

net = BitcoinTestnet

def set_regtest():

global net

net = BitcoinRegtest