#!/usr/bin/env python3

"""
test.unit_tests_d.ut_rpc: RPC unit test for the MMGen suite
"""

import os,time

from mmgen.cfg import gc
from mmgen.color import yellow,cyan
from mmgen.util import msg,gmsg,async_run,make_timestr,pp_fmt,die
from mmgen.protocol import init_proto
from mmgen.rpc import rpc_init
from mmgen.daemon import CoinDaemon
from mmgen.proto.xmr.rpc import MoneroRPCClient,MoneroWalletRPCClient
from mmgen.proto.xmr.daemon import MoneroWalletDaemon

from ..include.common import cfg,qmsg,vmsg

def cfg_file_auth_test(proto,d,bad_auth=False):
	m = 'missing credentials' if bad_auth else f'credentials from {d.cfg_file}'
	qmsg(cyan(f'\n  Testing authentication with {m}:'))
	time.sleep(0.1) # race condition
	d.remove_datadir() # removes cookie file to force authentication from cfg file
	os.makedirs(d.network_datadir)

	if not bad_auth:
		cf = os.path.join(d.datadir,d.cfg_file)
		with open(cf,'a') as fp:
			fp.write('\nrpcuser = ut_rpc\nrpcpassword = ut_rpc_passw0rd\n')
		d.flag.keep_cfg_file = True

	d.start()

	if bad_auth:
		os.rename(d.auth_cookie_fn,d.auth_cookie_fn+'.bak')
		try:
			async_run(rpc_init(cfg,proto))
		except Exception as e:
			vmsg(yellow(str(e)))
		else:
			die(3,'No error on missing credentials!')
		os.rename(d.auth_cookie_fn+'.bak',d.auth_cookie_fn)
	else:
		rpc = async_run(rpc_init(cfg,proto))
		assert rpc.auth.user == 'ut_rpc', f'{rpc.auth.user}: user is not ut_rpc!'

	d.stop()

def print_daemon_info(rpc):

	if rpc.proto.base_proto == 'Monero':
		msg(f"""
    DAEMON VERSION: {rpc.daemon_version} [{rpc.daemon_version_str}]
    NETWORK:        {rpc.proto.coin} {rpc.proto.network.upper()}
		""".rstrip())
	else:
		msg(f"""
    DAEMON VERSION: {rpc.daemon_version} [{rpc.daemon_version_str}]
    CAPS:           {rpc.caps}
    NETWORK:        {rpc.proto.coin} {rpc.proto.network.upper()}
    CHAIN:          {rpc.chain}
    BLOCKCOUNT:     {rpc.blockcount}
    CUR_DATE:       {rpc.cur_date} [{make_timestr(rpc.cur_date)}]
		""".rstrip())

	if rpc.proto.base_proto == 'Bitcoin':
		def fmt_dict(d):
			return '\n        ' + '\n        '.join( pp_fmt(d).split('\n') ) + '\n'
		msg(f"""
    NETWORKINFO:    {fmt_dict(rpc.cached["networkinfo"])}
    BLOCKCHAININFO: {fmt_dict(rpc.cached["blockchaininfo"])}
    DEPLOYMENTINFO: {fmt_dict(rpc.cached["deploymentinfo"])}
		""".rstrip())

	msg('')

def do_msg(rpc,backend):
	bname = type(rpc.backend).__name__
	qmsg('  Testing backend {!r}{}'.format( bname, '' if backend == bname else f' [{backend}]' ))

class init_test:

	async def btc(proto,backend,daemon):
		rpc = await rpc_init(cfg,proto,backend,daemon)
		do_msg(rpc,backend)

		bh = (await rpc.call('getblockchaininfo',timeout=300))['bestblockhash']
		await rpc.gathered_call('getblock',((bh,),(bh,1)),timeout=300)
		await rpc.gathered_call(None,(('getblock',(bh,)),('getblock',(bh,1))),timeout=300)
		return rpc

	async def bch(proto,backend,daemon):
		rpc = await rpc_init(cfg,proto,backend,daemon)
		do_msg(rpc,backend)
		return rpc

	ltc = bch

	async def eth(proto,backend,daemon):
		rpc = await rpc_init(cfg,proto,backend,daemon)
		do_msg(rpc,backend)
		await rpc.call('eth_blockNumber',timeout=300)
		return rpc

	etc = eth

def run_test(network_ids,test_cf_auth=False,daemon_ids=None):

	def do_test(d):

		if not cfg.no_daemon_stop:
			d.stop()

		if not cfg.no_daemon_autostart:
			d.remove_datadir()
			d.start()

		for n,backend in enumerate(cfg._autoset_opts['rpc_backend'].choices):
			test = getattr(init_test,d.proto.coin.lower())
			rpc = async_run(test(d.proto,backend,d))
			if not n and cfg.verbose:
				print_daemon_info(rpc)

		if not cfg.no_daemon_stop:
			d.stop()

		if test_cf_auth and gc.platform != 'win':
			cfg_file_auth_test(d.proto,d)
			cfg_file_auth_test(d.proto,d,bad_auth=True)

		qmsg('')

	for network_id in network_ids:
		proto = init_proto( cfg, network_id=network_id )
		ids = (lambda x:
			set(daemon_ids) & set(x) if daemon_ids else x
			)(CoinDaemon.get_daemon_ids(cfg,proto.coin))
		for daemon_id in ids:
			do_test( CoinDaemon(cfg, proto=proto,test_suite=True,daemon_id=daemon_id) )

	return True

class unit_tests:

	altcoin_deps = ('ltc','bch','geth','erigon','parity','xmrwallet')
	arm_skip = ('parity',) # no prebuilt binaries for ARM

	def btc(self,name,ut):
		return run_test(['btc','btc_tn'],test_cf_auth=True)

	def ltc(self,name,ut):
		return run_test(['ltc','ltc_tn'],test_cf_auth=True)

	def bch(self,name,ut):
		return run_test(['bch','bch_tn'],test_cf_auth=True)

	def geth(self,name,ut):
		return run_test(['eth_tn','eth_rt'],daemon_ids=['geth']) # mainnet returns EIP-155 error on empty blockchain

	def erigon(self,name,ut):
		return run_test(['eth','eth_tn','eth_rt'],daemon_ids=['erigon'])

	def parity(self,name,ut):
		return run_test(['etc'])

	def xmrwallet(self,name,ut):

		def test_monerod_rpc(md):
			rpc = MoneroRPCClient(
				cfg    = cfg,
				proto  = md.proto,
				host   = 'localhost',
				port   = md.rpc_port,
				user   = None,
				passwd = None,
				daemon = md,
			)
			if cfg.verbose:
				print_daemon_info(rpc)
			rpc.call_raw('get_height')
			rpc.call('get_last_block_header')

		from mmgen.xmrseed import xmrseed

		async def run():
			networks = init_proto( cfg, 'xmr' ).networks
			daemons = [(
					CoinDaemon( cfg, proto=proto, test_suite=True ),
					MoneroWalletDaemon(
						cfg        = cfg,
						proto      = proto,
						test_suite = True,
						wallet_dir = os.path.join('test','trash2'),
						datadir    = os.path.join('test','trash2','wallet_rpc'),
						passwd     = 'ut_rpc_passw0rd' )
				) for proto in (init_proto( cfg, 'xmr', network=network ) for network in networks) ]

			for md,wd in daemons:
				if not cfg.no_daemon_autostart:
					md.start()
				wd.start()

				test_monerod_rpc(md)

				c = MoneroWalletRPCClient( cfg=cfg, daemon=wd )
				fn = f'monero-{wd.network}-junk-wallet'
				qmsg(f'Creating {wd.network} wallet')
				c.call(
					'restore_deterministic_wallet',
					filename = fn,
					password = 'foo',
					seed     = xmrseed().fromhex('beadface'*8,tostr=True) )

				if gc.platform == 'win':
					wd.stop()
					wd.start()

				qmsg(f'Opening {wd.network} wallet')
				c.call( 'open_wallet', filename=fn, password='foo' )

				await c.stop_daemon()

				if not cfg.no_daemon_stop:
					await md.rpc.stop_daemon()

			gmsg('OK')

		import shutil
		shutil.rmtree('test/trash2',ignore_errors=True)
		os.makedirs('test/trash2/wallet_rpc')
		async_run(run())
		return True