mmgen-node-tools/btc-ticker

#!/usr/bin/python
# -*- coding: UTF-8 -*-
#
# mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
# Copyright (C)2013-2016 Philemon <mmgen-py@yandex.com>
#
# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
#
"""
btc-ticker: ticker and alarm clock for mmgen-node-tools
"""

import sys,os,time,subprocess
import threading as th
from collections import OrderedDict
from decimal import Decimal

from mmgen.share import Opts
from mmgen.util import msg,msg_r,die,die_pause
from mmgen.node_tools.Global import *
from mmgen.node_tools.Util import *
from mmgen.node_tools.Sound import *
from mmgen.node_tools.Term import *

from mmgen.color import *
init_color()

quit = False
sound_vol = float(100)
audio_host,repeat_spec = '','3s:5m,1m:30m,5m:1h,30m:1d'
# repeat_spec = '1:5m'  # DEBUG
valid_loglevels = OrderedDict([(1,'info'),(2,'data'),(3,'debug')])
logfile = 'ticker_log.txt'
alrm_clock = 'off'
num_digits = 6
proxy = None
fx_host= 'https://finance.yahoo.com'

sounds_dir = nt.system_data_dir+'/audio'
sounds = {
	'lo':          [sounds_dir+'/ringtone.wav',     95],
	'hi':          [sounds_dir+'/Positive.wav',     102],
	'conn_err':    [sounds_dir+'/Rhodes.wav',       105],
	'alrm_clock':  [sounds_dir+'/Counterpoint.wav', 105],
}
alrm_names = tuple(sounds.keys())

dlock,llock,alock = th.Lock(),th.Lock(),th.Lock()

data_dir = nt.data_dir+'/lib/ticker/'

try: os.makedirs(data_dir)
except: pass

def update_fx(a,b,debug=False):
	if debug:
		with open('/tmp/ticker.out') as f: text = f.read()
	else:
		text = get_url('{}/q?s={}{}'.format(fx_host,a,b),gzip_ok=True,proxy=proxy,debug=debug_curl)
	if not text: return False
	import re
	ret = re.split('yfs_l10_{}{}=.+?>'.format(a,b),text,maxsplit=1)[1].split('<',1)[0][:10]
	try:
		globals()[a+b] = float(ret)
		with open(data_dir+'/{}{}.txt'.format(a,b),'wb') as f: f.write(ret+'\n')
		return True
	except:
		return False

def get_fx(a,b):
	try:
		with open(data_dir+'/{}{}.txt'.format(a,b)) as f:
			d = f.read().rstrip()
		globals()[a+b] = float(d)
		return True
	except:
		return update_fx(a,b)

with open('/etc/timezone') as f:
	os.environ['TZ'] = f.read().rstrip()

class Xch(object): pass
class Src(object): pass

num_xchgs = 2
xchgs = tuple([Xch() for i in range(num_xchgs)])

sources = OrderedDict([('tc','ticker')])
for g in xchgs:
	for k in sources:
		setattr(g,k,Src())
		setattr(getattr(g,k),'desc',sources[k])

for g in [xchgs[0]]:
	g.cur = 'USD'
	g.Desc = 'BitFinex'
	g.desc = 'bitfinex'
	g.desc_short = 'bfx'
	g.tc.url = 'https://api.bitfinex.com/v1/pubticker/btcusd'
	g.poll_secs = 60
	g.cur_sign = '$'
	g.xcur_sign = '¥'
	g.fiat_precision = 2
	g.hi_alrm = 999999
	g.lo_alrm = 1
	g.cc_unit = 'BTC'

for g in [xchgs[1]]:
	g.cur = 'CNY'
	g.Desc = 'OKCoin'
	g.desc = 'okcoin'
	g.desc_short = 'okc'
	g.tc.url = 'https://www.okcoin.cn/api/v1/ticker.do?symbol=btc_cny'
	g.poll_secs = 60
	g.cur_sign = '¥'
	g.xcur_sign = '$'
	g.fiat_precision = 1
	g.hi_alrm = 999999
	g.lo_alrm = 1
	g.cc_unit = 'BTC'

opts_data = {
	'prog_name': sys.argv[0].split('/')[-1],
	'desc': 'Price alarm for Bitcoin exchange',
	'usage': '[opts] [<low price alarm> <high price alarm>]',
#-b, --big-number         Print big numbers
	'options': """
-h, --help               Print this help message
-a, --alarm-clock-only   Disable ticker, use as alarm clock only
-c, --cur-ticker-only    Display only current exchange's ticker price
-d, --debug              Debug mode.  Use saved HTTP data from files
-D, --debug-curl         Debug curl
-l, --log=             l Log all data to file '{lf}' at levels 'l' (comma-separated: {lls})
-n, --num-digits=      n Display 'n' number of big digits
-p, --poll-intervals=i1[,i2] Poll servers every 'i' seconds (default: '{pi}')
-P, --proxy=           x Connect via proxy 'x' (see PROXY EXAMPLES below for format)
-r, --repeat-spec        Sleep interval/duration program for the alarm
                         (default: '{r}')
                         (see REPEAT SPEC FORMAT below)
-R, --resize-window      Resize window to optimum dimensions
-t, --testing            Testing mode.  Don't execute shell commands
-u, --utc                Show times in UTC rather than local time
-v, --volume=          n Adjust sound volume by percentage 'n' (default: {v})
-V, --test-volume        Test the alarm volume and exit
-x, --xchgs=     x,y[,…] Display only exchanges 'x,y[,…]' (comma-separated
                         list of integers, see CONFIGURED EXCHANGES below)
""".format(
		v=int(sound_vol),
		pi = ','.join([str(g.poll_secs) for g in xchgs]),
		r=repeat_spec,
		lf=logfile,
		lls=', '.join(['%s=%s'%(i,j) for i,j in valid_loglevels.items()])
	),
	'notes': '''

REPEAT SPEC FORMAT:
  <interval>:<duration>[,<interval>:<duration>[,…]]
  For example, '3s:5m,1m:2h,30m:1d' means:
    ring alarm every 3 seconds for 5 minutes,
    then every minute for 2 hours,
    then every 30 minutes for 1 day

PROXY EXAMPLES:
  socks5h://localhost:9050 (for Tor running on localhost)
  http://192.168.0.4:8118 (for Privoxy running on host 192.168.0.4)

CONFIGURED EXCHANGES:
  {x}
'''.format(
		x='\n  '.join(['%s - %s'%(n,x.Desc) for n,x in enumerate(xchgs,1)])
	)
}

opts,args = Opts.parse_opts(sys.argv,opts_data)[:2]

debug_curl = 'debug_curl' in opts
proxy = opts['proxy'] if 'proxy' in opts else None

# Global var: the currently displayed exchange
if 'alarm_clock_only' in opts:
	num_digits = 4
	mute_alrms = False
	ga = None
	xchgs = []
else:
	mute_alrms = True
	ga = xchgs[0]
	fx_pairs = [('usd','cny')]
	for a,b in fx_pairs:
		msg_r('Getting {}/{} exchange rate...'.format(a.upper(),b.upper()))
		if get_fx(a,b):
			msg('OK')
		else:
			die_pause(1,'Unable to get {}/{} exchange rate'.format(a.upper(),b.upper()))

	if 'xchgs' in opts:
		usr_xchgs = [int(i)-1 for i in opts['xchgs'].split(',')]
		xchgs = [xchgs[i] for i in usr_xchgs]

	# Initialize some variables for active exchanges
	for g in xchgs:
		g.retry_interval = 30
		g.conn_alrm_timeout = 300
		g.tc.bal = 0.0,0.0,0.0
		if not hasattr(g,'desc_short'): g.desc_short = g.desc
		for k in sources:
			s = getattr(g,k)

main_thrd_names = tuple([x.desc+'_ticker' for x in xchgs])
kill_flgs = dict([(k,th.Event()) for k in main_thrd_names + ('alrm','clock','log')])

debug = 'debug' in opts

if debug: msg('Debugging mode.  Using saved data from files')

def do_errmsg(s,k='ticker'):
	if k == 'ticker':
		with dlock:
			blank_ticker()
			msg_r(CUR_HOME)
			msgred_r(s)
			time.sleep(5)

def toggle_option(k):
	with dlock:
		if k in opts: del opts[k]
		else: opts[k] = True

def get_thrd_names(): return [i.name for i in th.enumerate()]

def start_alrm(name):
	kill_flgs['alrm'].clear()
	t = th.Thread(
			target = play_sound,
			name = name,
			kwargs = {
				'fn': sounds[name][0], # (fn,vol)
				'repeat_spec': repeat_spec,
				'remote_host': audio_host,
				'vol': sound_vol * sounds[name][1] / 100,
				'kill_flg': kill_flgs['alrm'],
				'testing': False
			}
		)
	t.daemon = True
	t.start()

def start_alrm_maybe(my_thrd_name,kill_list=None):

	if mute_alrms: return

	# Allow for an empty kill list
	klist = kill_list if kill_list != None else alrm_names

	with alock: # kill alarm thrds except mine
		if any([n in klist and n != my_thrd_name for n in get_thrd_names()]):
			kill_flgs['alrm'].set()

		if not my_thrd_name: return  # if thread name 'None', kill first, then return

		if not any([n in alrm_names for n in get_thrd_names()]):
			start_alrm(my_thrd_name)

def parse_loglevel_arg(s):
	m1 = 'Invalid loglevel argument: %s\n' % s
	try: ret = [int(i) for i in s.split(',')]
	except:
		m2 = 'Loglevels must be comma-separated int values'
		return False, m1+m2
	if not set(ret) <= set(valid_loglevels):
		m2 = 'Valid loglevels: %s' % ','.join([str(i) for i in valid_loglevels])
		return False, m1+m2
	return ret,'OK'

def set_alrm_vals(s):
	ret = []
	m1 = 'Invalid alarm argument: %s\n' % s
	for e in s.split(':'):
		try: ret.append([Decimal(i) for i in e.split(',')])
		except:
			m2 = 'Alarms must be comma-separated decimal values'
			return False, m1+m2
		if len(ret[-1]) != 2:
			m2 = 'Each element of alarm list must have 2 items (lo_alrm,hi_alrm)'
			return False, m1+m2

	if len(ret) != len(xchgs):
		m2 = 'Alarm list must be %s colon-separated comma-separated lists' % len(xchgs)
		return False, m1+m2

	for g,a in zip(xchgs,ret):
		lo,hi = a
		if lo > hi:
			m2 = 'Low alarm (%s) is greater than high alarm (%s)' % (lo,hi)
			return False, m1+m2
		setattr(g,'lo_alrm',lo)
		setattr(g,'hi_alrm',hi)

	return ret,'OK'

def set_poll_intervals(s,xchg=None):
	ret = []
	m1 = 'Invalid poll interval argument: %s\n' % s
	m2 = 'Poll intervals must be comma-separated integer values'
	m3 = 'Poll interval must be integer value'
	for e in (s.split(','),[s])[bool(xchg)]:
		try: ret.append(float(e))
		except:
			return False, m1+(m2,m3)[bool(xchg)]

	if not xchg and len(ret) != len(xchgs):
		m2 = 'Poll interval list have %s items' % len(xchgs)
		return False, m1+m2

	for g,p in zip((xchgs,[xchg])[bool(xchg)],ret):
		setattr(g,'poll_secs',float(p))

	return ret,'OK'

def set_xch_param(source,param,s,desc):
	ret = []
	m1 = 'Invalid %s argument: %s\n' % (desc,s)
	for e in s.split(':'):
		try: ret.append(float(e))
		except:
			m2 = '%s arg must be colon-separated float values' % desc.capitalize()
			return False, m1+m2

	if len(ret) != len(xchgs):
		m2 = '%s list must have %s colon-separated items' % (
			desc.capitalize(),len(xchgs))
		return False, m1+m2

	for g,p in zip(xchgs,ret):
		a = getattr(g,source)
		setattr(a,param,float(p))

	return ret,'OK'

if 'log' in opts:
	loglevels,errmsg = parse_loglevel_arg(opts['log'])
	if not loglevels: die_pause(1,errmsg)
	msg('Logging at level{} {}'.format(
		('s','')[len(loglevels)==1],
		' '.join([valid_loglevels[i].upper() for i in loglevels])))
else:
	loglevels = []

if 'repeat_spec' in opts:
	repeat_spec = opts['repeat_spec']
	msg("Using program '{}' for alarm".format(repeat_spec))

if 'num_digits' in opts:
	n = opts['num_digits']
	if len(n) != 1 or n not in '56789':
		die_pause(1,"'%s': invalid value for --num-digits option" % n)
	num_digits = int(n)

if 'volume' in opts:
	sound_vol = int(opts['volume'])
	for k in sounds:
		sounds[k][1] = float(sounds[k][1] * sound_vol / 100)
	msg('Adjusting sound volume by {}%'.format(sound_vol))

if 'test_volume' in opts:
	for k in sounds:
		msg("Playing '{}' ({})".format(k,sounds[k][0]))
		play_sound(
			fn=sounds[k][0],
			vol=sound_vol * sounds[k][1] / 100,
			testing='testing' in opts
		)
	sys.exit()

if len(args) > 1: Opts.usage(opts_data)

if len(args) == 1:
	ret,errmsg = set_alrm_vals(args[0])
	if not ret: die_pause(1,'Error: ' + errmsg)
	msg('Setting alarms to %s' % ', '.join(['{} {}'.format(i,j) for i,j in ret]))

if 'poll_intervals' in opts:
	ret,errmsg = set_poll_intervals(opts['poll_intervals'])
	if not ret: die_pause(1,errmsg)
	msg('Polling every %s seconds' % ret)

tmux = 'TMUX' in os.environ
if tmux:
	subprocess.check_output(['tmux','set','set-titles','on'])
	subprocess.check_output(['tmux','set','status','off'])
#	dcmd = "date -R%s | cut -d' ' -f2-5" % ('','u')['utc' in opts]
#	subprocess.check_output(['tmux','set','status-right','#(%s)' % dcmd])

infoW = 15
bigDigitsW = big_digits['w']*num_digits + big_digits['pw']*1
lPaneW = bigDigitsW+infoW+1
topPaneH,rPaneW = 6,23

def CUR_UP(n):    return '\033[%sA' % n
def CUR_DOWN(n):  return '\033[%sB' % n
def CUR_RIGHT(n): return '\033[%sC' % n
def CUR_LEFT(n):  return '\033[%sD' % n
def WIN_TITLE(s): return '\033]0;%s\033\\' % s
def WIN_RESIZE(w,h): return '\033[8;%s;%st' % (h,w)
def WIN_CORNER(): return '\033[3;200;0t'

CUR_UP1    = '\033[A'
CUR_DN1    = '\033[B'
CUR_SHOW    = '\033[?25h'
CUR_HIDE    = '\033[?25l'
BLINK       = '\033[5m'
RESET       = '\033[0m'
CUR_HOME    = '\033[H'
ERASE_ALL   = '\033[0J'

def draw_rectangle(s,l,h):
	msg_r(s + '\n'.join([l] * h))
def blank_ticker():
	draw_rectangle(CUR_HOME,' ' * lPaneW,topPaneH)
def blank_big_digits():
	draw_rectangle(CUR_HOME,' ' * (bigDigitsW+1),topPaneH)
def park_cursor():
	msg_r('\r' + CUR_RIGHT(lPaneW-1))
def colorize_bal(g,n):
	d = g.tc
	fs = '{:.%sf}' % g.fiat_precision
	return (nocolor,green,red)[
			(bool(d.save_bal[n]) and
				(d.bal[n]!=d.save_bal[n]) + (d.bal[n]<d.save_bal[n]))
		](fs.format(d.bal[n]))

def display_ac_info():
	ac_fmt = green('--:--') if alrm_clock == 'off' else yelbg(alrm_clock)
	info_lines = (
		'{}'.format(ac_fmt),
		'snd vol: {}%'.format(int(sound_vol)),
		'{}'.format((yellow('unmuted'),'muted')[mute_alrms]),
		'{}'.format(blue(audio_host[:infoW] or 'localhost')),
		'',
		"'?' for help"
		)
	r = CUR_RIGHT(bigDigitsW+1)
	msg_r(CUR_HOME+r+('\n'+r).join(info_lines))
	park_cursor()
	ts = 'Alarm Clock: {}{}'.format(alrm_clock.upper(),('',' (m)')[mute_alrms])
	if tmux:
 		subprocess.check_output(['tmux','set','set-titles-string',ts])
 	else:
		msg_r(WIN_TITLE(ts))

def display_ticker(g,called_by_clock=False):
	if not g: return
	d = g.tc
	if not hasattr(d,'timestamp'): return

	avg = sum((d.bal[i] or d.save_bal[i]) for i in range(3)) / 3
	alrm,lb,hb,rst = (
		(None,'','',''),
		('lo',BLINK,'',RESET),
		('hi','',BLINK,RESET)
		)[(avg<g.lo_alrm)+(avg>g.hi_alrm)*2]

	start_alrm_maybe(alrm,['lo','hi'])

	if (g is not ga) and not called_by_clock: return

	lfmt = '{n:.{p}f}'.format(p=g.fiat_precision,n=d.bal[2])
	msg_r(CUR_HOME+lb+hb+display_big_digits(lfmt,pre=' '+rst))

	if (g is not ga) and called_by_clock:
		park_cursor()
		return

	hms = get_hms(d.timestamp,utc='utc' in opts)
	xcur = '{:.2f}'.format(d.bal[2]/usdcny if g.cur == 'CNY' else d.bal[2]*usdcny)
	ac_fmt = green('--:--') if alrm_clock == 'off' else yelbg(alrm_clock)
	info_lines = (
		'{} {}'.format(hms,('%ss'%int(g.poll_secs))),
		'{} bid/ask'.format(cyan(g.desc_short)),
		'{} {}'.format(colorize_bal(g,0), colorize_bal(g,1)),
		'{g.xcur_sign}{x} {h}'.format(g=g,x=xcur,
			h=('',blue(audio_host[:infoW-len(xcur)-2]))[bool(audio_host)]),
		'{} {} {}'.format(yellow(('♫','-')[mute_alrms]),
			lb+yellow(str(g.lo_alrm))+rst,
			hb+yellow(str(g.hi_alrm))+rst),
		'{} vol {}%'.format(ac_fmt,int(sound_vol))
		)

	r = CUR_RIGHT(bigDigitsW+1)
	msg_r(CUR_HOME+r+('\n'+r).join(info_lines))
	park_cursor()

	ccs = ('฿','Ł')[g.cc_unit=='LTC']

	if len(xchgs) == 2:
		x1,x2 = xchgs
		ts = '{}{:.{}f} / {}{:.{}f}'.format(
			x1.cur_sign,
			x1.tc.bal[2],
			x1.fiat_precision,
			x2.cur_sign,
			x2.tc.bal[2],
			x2.fiat_precision,
			)
	else:
		ts = '{}: {}{:.{}f} ({})'.format(
			ccs,
			g.cur_sign,
			d.bal[2],
			g.fiat_precision,
			g.Desc
			)
	if tmux:
# 		subprocess.call(['tmux','rename-session',g.Desc], stderr=subprocess.PIPE)
 		subprocess.check_output(['tmux','set','set-titles-string',ts])
 	else:
		msg_r(WIN_TITLE(ts))

def log(*args): # [lvl,g,src,data] OR [lvl,data]
	if 'log' in opts and args[0] in loglevels + [0]:
		if len(args) == 2:
			s = '{}: {}\n'.format(get_day_hms(),args[1])
		elif len(args) == 4:
			s = '{}: {} {} - {}\n'.format(
				get_day_hms(),
				args[1].desc_short.upper(),
				args[2].upper(),
				args[3]
			)
		with llock:
			fd = os.open(logfile,os.O_RDWR|os.O_APPEND|os.O_CREAT|os.O_SYNC)
			os.write(fd,s)
			os.close(fd)

def get_market_data(g,d,connfail_msg='full'):
#		, post_data={}

	tcd = 'TRADING_CONSOLE_DEBUG_CONNFAIL'
	debug_connfail = tcd in os.environ and os.environ[tcd]
	null = None  # hack for eval'ing Huobi trades data

	if debug:
		fn = 'debug_market_data/%s_ticker.json' % g.desc
		try:
			with open(fn) as f: text = f.read()
			return eval(text)
		except:
			die(2,'Unable to open datafile %s' % fn)

	fail_count,conn_begin_time = 0,time.time()
	if debug_connfail:
		retry_interval,conn_alrm_timeout = 10,0
	else:
		retry_interval,conn_alrm_timeout = g.retry_interval,g.conn_alrm_timeout

	while True:
		try:
			text = get_url(d.url,proxy=proxy,debug=debug_curl)
			log(2,g,d.desc,text)
			return eval(text)
		except KeyboardInterrupt:
			die(1,'\nUser interrupt (get_market_data)\n')
		except EOFError:
			die(1,'\nEnd of file\n')
		except Exception as e:
			fail_count += 1
			if connfail_msg:
				with dlock:
					if g is ga:
						m = {
							'short':'Connect fail ({})'.format(fail_count),
							'full': 'Connect fail.  Retry in {} seconds ({})'.format(
											retry_interval,fail_count)
						}
						dn = CUR_DOWN(topPaneH-1)
						blank_big_digits()
						msg_r(CUR_HOME+dn+m[connfail_msg]+' \b')

			k = '%s_%s' % (g.desc,d.desc)

			if time.time() - conn_begin_time > conn_alrm_timeout:
				if fail_count == 1:
					log(1,'Connect error (%s)' % k)
				if d.desc == 'ticker':
					with dlock: d.bal = d.bal[:2] + (0.0,) # can't assign to tuple, so this
				start_alrm_maybe('conn_err')

			# Sleep until user interrupt
			if kill_flgs[k].wait(retry_interval):
				kill_flgs[k].clear()
				return False

def killwait(g,d):
	log(3,g,d.desc,'Begin wait')

	k = '%s_%s' % (g.desc,d.desc)
	if kill_flgs[k].wait(g.poll_secs):
		kill_flgs[k].clear()
		if quit: return True

	log(3,g,d.desc,'End wait')

	return False

def log_loop():
	while True:
		for g in xchgs:
			with dlock:
				lstr = '{} last: {}{}'.format(g.desc_short.upper(),g.cur_sign,g.tc.bal[2])
			log(1,lstr)

		if kill_flgs['log'].wait(30):
			kill_flgs['log'].clear()
			if quit: return True

def ticker_loop(g):
	d = g.tc
	while True:
		ret = get_market_data(g,d)

		if not ret: # kill flag was set
			if quit: break
			continue

		errmsg = 'ticker_loop: HTTP returned bad data'
		with dlock:
			if g.desc == 'bitfinex':
				a = ret
				ts,bal = 'timestamp',('bid','ask','last_price')
			else:
				try:
					a = ret['ticker']
				except:
					log(1,errmsg); continue
				ts = ('time','date')[g.desc=='okcoin']
				bal = 'buy','sell','last'
# okc: {"date":"1477932232","ticker":{"buy":"4844.13","high":"4873.36","last":"4844.16","low":"4660.0","sell":"4844.14","vol":"2992115.73393084"}}

			try:
				d.timestamp = int(float(ret[ts]))
			except:
				log(1,errmsg); continue

			d.save_bal = d.bal
			try:
				d.bal = tuple([float(a[k]) for k in bal])
			except:
				log(1,errmsg); continue

		if killwait(g,d): break

def clock_loop():
	ac_active = False
	ac_prefix=('     ','')['alarm_clock_only' in opts]

	def do_ticker(x):
		with dlock:
			blank_big_digits()
			display_ticker(x,called_by_clock=True)
		if kill_flgs['clock'].wait(2): sys.exit()

	while True:
		if 'alarm_clock_only' in opts:
			with dlock:
				blank_ticker()
				display_ac_info()
		elif not ac_active:
			if 'cur_ticker_only' in opts:
				do_ticker(ga)
			else:
				for x in xchgs: do_ticker(x)

		if alrm_clock == 'off' and ac_active:
			ac_active = False

		if alrm_clock != 'off' or 'alarm_clock_only' in opts:
			now = get_hms(no_secs=True)
			if now == alrm_clock:
				ac_active = True
				start_alrm_maybe('alrm_clock',['alrm_clock'])
			if not any([(n in alrm_names and n != 'alrm_clock') for n in get_thrd_names()]):
				bl,rs = (('',''),(BLINK,RESET))[ac_active]
				with dlock:
					blank_big_digits()
					msg_r(CUR_HOME+bl+display_big_digits(now,pre=ac_prefix)+rs)
					park_cursor()
				if kill_flgs['clock'].wait(2): return

def input_loop():

	global ga,sound_vol,alrm_clock,quit,mute_alrms
	from mmgen.node_tools.Term import get_keypress

	if 'alarm_clock_only' not in opts:
		msg("Type '?' for help after the ticker starts")
	ch = get_keypress("Hit 'q' to quit, any other key to continue: ")
	if ch == 'q': die(0,'')

	if 'resize_window' in opts:
		if tmux:
			msg('\nWARNING: Window resizing doesn\'t work in tmux')
		else:
			msg_r(WIN_RESIZE(lPaneW,topPaneH))
			msg_r(WIN_CORNER())
			time.sleep(0.1)

	from mmgen.term import set_terminal_vars
	set_terminal_vars()
	from mmgen.term import get_terminal_size
	twid = get_terminal_size()[0]
	if twid < lPaneW:
		die_pause(1,'\nTerminal window must be at least %s characters wide' % lPaneW)

	msg_r(CUR_HIDE)
#	raw_input('\nPress any key to exit'); sys.exit() # DEBUG
	blank_ticker()

	for k in xchgs:
		th.Thread(target=globals()['ticker_loop'],args=[k],name=k.desc+'_ticker').start()

	th.Thread(target=clock_loop,name='clock').start()
	th.Thread(target=log_loop,name='log').start()

	time.sleep(1)  # Hack for get_keypress()
	def redraw():
		blank_ticker()
		display_ticker(ga)

	help_texts = {
		'tc': '''
a - set alarm clock          l - set low alarm
A - set remote audio host    m - mute alarms
e - update USD/CNY rate      M - write message to log
G - set log levels           p - set poll interval
h - set high alarm           t - reload ticker
k - kill alarm               v - set sound volume
L - log current state        x - cycle thru exchanges
c - toggle display of current ticker only
-/+ - adjust sound volume
''',
		'ac': '''
a - set alarm clock         m - mute alarms
A - set remote audio host   k - kill alarm
M - write message to log    v - set sound volume
-/+ - adjust sound volume
'''
	}
	help_text = ['{:^{w}}'.format('KEYSTROKE COMMANDS',w=lPaneW)]
	help_text += help_texts[('tc','ac')['alarm_clock_only' in opts]].strip().split('\n')
	help_text_prompt = 'ESC or ENTER to exit, ↑ and ↓ to scroll'

	def do_help():
		scrollpos = 0
		def fmt_help_txt(pos):
			return '\n'.join(help_text[pos:pos+5])+'\n'+help_text_prompt+' '
		with dlock:
			while True:
				blank_ticker()
				ch = get_keypress(CUR_HOME+fmt_help_txt(scrollpos),esc_sequences=True)
				if ch == CUR_DN1 and scrollpos < len(help_text) - topPaneH + 1:
					scrollpos += 1
				elif ch == CUR_UP1 and scrollpos != 0:
					scrollpos -= 1
				elif ch in '\n\033': break
			blank_ticker()
			display_ticker(ga)

	def ks_msg_nolock(s,delay):
		blank_ticker()
		msg_r(CUR_HOME+s)
		time.sleep(delay)
		blank_ticker()
		display_ticker(ga)

	def ks_msg(s,delay):
		with dlock:
			ks_msg_nolock(s,delay)

	def set_value(v,prompt,vtype=int,poll=False,source=None,
					all_srcs=False,global_var=False,allow_empty=False):

		def type_chk(vtype,val):
			try:
				vtype(val); return True
			except:
				return False

		errmsg = ''
		with dlock:
			while True:
				blank_ticker()
				em = errmsg+'\n' if errmsg else ''
				termios.tcsetattr(sys.stdin.fileno(), termios.TCSADRAIN, old_termattrs)
#				time.sleep(0.1)
				s = raw_input(CUR_HOME+CUR_SHOW+em+prompt)
				msg_r(CUR_HIDE)
				if not s:
					if allow_empty:
						ks_msg_nolock('Value unset',0.5)
					else:
						blank_ticker()
						display_ticker(ga)
						return False

				if v == 'alrm_clock':
					if s == 'off':
						globals()[v] = s
						if v in get_thrd_names():
							kill_flgs['alrm'].set()
						return s
					a = s.split(':')
					ok = True
					if len(a) != 2: ok = False
					if ok:
						try:    h,m = int(a[0]),int(a[1])
						except: ok = False
					if ok:
						if not (24 >= h >= 0): ok = False
						if not (60 >= m >= 0): ok = False
					if ok:
						globals()[v] = '{:02d}:{:02d}'.format(h,m)
						break
					else:
						errmsg = 'Incorrect alarm clock value'
						continue
				elif v == 'loglevels':
					ret,err = parse_loglevel_arg(s)
					if ret:
						globals()[v] = ret; break
					else:
						errmsg = err; continue
				elif v == 'poll_secs':
					ret,errmsg = set_poll_intervals(s,xchg=ga)
					if ret: break
					else: continue
				elif all_srcs:
					vals = s.split(',')
					if len(vals) != len(sources):
						errmsg = 'Input must be %s comma-separated %s values'%(
							len(sources),vtype.__name__)
						continue
					for k,val in zip(sources,vals):
						ret = type_chk(vtype,val)
						if ret: setattr(getattr(ga,k),v,vtype(val))
						else: break
					if ret: break
				elif source:
					if type_chk(vtype,s):
						setattr(getattr(ga,source),v,vtype(s)); break
				else:
					if type_chk(vtype,s):
						if v == 'hi_alrm' and vtype(s) < ga.lo_alrm:
							errmsg = 'High alarm must be >= low alarm'
							continue
						if v == 'lo_alrm' and vtype(s) > ga.hi_alrm:
							errmsg = 'Low alarm must be <= high alarm'
							continue
						if global_var:
							globals()[v] = vtype(s); break
						else:
							setattr(ga,v,vtype(s)); break

				errmsg = 'Value%s must be of type %s' % (
						('','s')[all_srcs],vtype.__name__)

			redraw()

 		if poll:
			kill_flgs[ga.desc+'_ticker'].set()

		return True

	while True:
		ch = get_keypress()
		if ch == 'q':
			quit = True
			for k in kill_flgs: kill_flgs[k].set()
			for i in th.enumerate():
				if i.name in main_thrd_names + alrm_names + ('clock',): i.join()
			msg('')
			break
		elif ch == 'a':
			m1 = 'Current alarm clock: %s' % alrm_clock
			m2 = "Enter alarm clock time or 'off': "
			if set_value('alrm_clock',m1+'\n'+m2):
				ks_msg("Alarm clock set to %s" % alrm_clock,1.5)
		elif ch == 'A':
			set_value('audio_host','Enter remote audio host: ',
				vtype=str,global_var=True,allow_empty=True)
		elif ch in 'H?': do_help()
		elif ch == 'k':
			if 'alrm_clock' in get_thrd_names(): alrm_clock = 'off'
			a = any([i in alrm_names for i in get_thrd_names()])
			log(3,'\n  alrm_names: {}\n  get_thrd_names(): {}'.format(
				alrm_names,get_thrd_names()))
			if a: kill_flgs['alrm'].set()
			ks_msg(('No active alarms','Killing alarm')[a],0.5)
		elif ch == 'M':
			with dlock:
				blank_ticker()
				termios.tcsetattr(sys.stdin.fileno(), termios.TCSADRAIN, old_termattrs)
				s = raw_input(CUR_HOME+'Enter log message: ')
				log(0,'USR_MSG: '+s)
				display_ticker(ga)
		elif ch == 'm':
			mute_alrms = not mute_alrms
			if mute_alrms: kill_flgs['alrm'].set()
			ks_msg(('Unm','M')[mute_alrms] + 'uting alarms',1)
			with dlock:
				blank_ticker()
				display_ticker(ga)
		elif ch == 'v': set_value('sound_vol','Enter sound volume: ',global_var=True)
		elif ch in '-+':
			with dlock:
				sound_vol += (1,-1)[ch=='-']
				blank_ticker(); display_ticker(ga)
		elif not 'alarm_clock_only' in opts:
			if ch == 'c':
				toggle_option('cur_ticker_only')
				ks_msg('Displaying %s' %
					('all tickers','current ticker only')['cur_ticker_only' in opts],0.5)
			elif ch == 'G': set_value('loglevels','Enter log levels: ',global_var=True)
			elif ch == 'h': set_value('hi_alrm','Enter high alarm: ',Decimal)
			elif ch == 'l': set_value('lo_alrm','Enter low alarm: ',Decimal)
			elif ch == 'L':
				ks_msg('Logging current ticker at %s' % get_hms(),1.5)
				with dlock:
					log(0,'{} CUR_STATE\n BID/ASK/LAST {}\n'.format(ga.desc.upper(),ga.tc.bal))
			elif ch == 'p': set_value('poll_secs',
				'Enter poll interval: ',float,poll=True)
			elif ch == 't':
				key = '%s_ticker' % (ga.desc)
				if key in kill_flgs:
					kill_flgs[key].set()
					ks_msg('Reloading ticker data',1)
				else:
					ks_msg('%s: no such key' % key,1)
			elif ch == 'x':
				for x in range(len(xchgs)):
					if ga is xchgs[x]: break
				new_g = xchgs[x+1 if x+1 < len(xchgs) else 0]
				ks_msg('Switching to exchange %s' % new_g.Desc,0.5)
				with dlock:
					ga = new_g
					redraw()
			elif ch == 'e':
				for a,b in fx_pairs:
					ks_msg('Updating {}/{} rate'.format(a.upper(),b.upper()),0.5)
					ret = update_fx(a,b)
					m,d = (('Unable to update',2),('Updated',0.7))[bool(ret)]
					ks_msg('{} {}/{} rate'.format(m,a.upper(),b.upper()),d)

def launch(name,*args,**kwargs):

	def at_exit():
# 		msg_r(CUR_HOME+ERASE_ALL) # DEBUG
 		msg_r(CUR_SHOW)
		termios.tcsetattr(sys.stdin.fileno(), termios.TCSADRAIN, old_termattrs)
		for k in kill_flgs: kill_flgs[k].set()
		for i in th.enumerate():
			if i.name in main_thrd_names + alrm_names + ('clock',): i.join()
		if 'log' in opts: log(0,'Exiting')

	import atexit
	atexit.register(at_exit)

	log(0,'Starting log')

	try:
		globals()[name](*args,**kwargs)
	except KeyboardInterrupt:
		quit = True
		for k in kill_flgs: kill_flgs[k].set()
		sys.stderr.write('\nUser interrupt\n')

import termios
old_termattrs = termios.tcgetattr(sys.stdin.fileno())
launch('input_loop')