#!/usr/bin/env python

import pygtk
import gtk

class Visual:
	def __init__(self, config, device, logger):
		def get_objects(names):
			return map(lambda x:
				self.builder.get_object(x), names)

		self.config   = config
		self.device   = device
		self.logger   = logger
		self.builder  = gtk.Builder()

		self.builder.add_from_file('visual.ui')
		self.builder.connect_signals(self)
		self.window   = self.builder.get_object("window")
		self.settings = self.builder.get_object("settings")

		self.accs     = get_objects(['accx', 'accy', 'accz'])
		self.mags     = get_objects(['magx', 'magy', 'magz'])
		self.touch    = get_objects(['touch'])
		self.light    = get_objects(['light'])
		self.a2ds     = get_objects(['a2d0', 'a2d1', 'a2d2', 'a2d3', 'a2d4', 'a2d5'])

	# Signal handlers
	def on_hide(self, win, *args):
		self.settings.hide()
		return True

	def on_show(self, act):
		self.settings.show()
		return True

	def on_serial(self, act):
		if act.get_active():
			self.status(self.device.connect())
		else:
			self.status(self.device.disconnect())
		return True

	def on_xively(self, act):
		if act.get_active():
			self.status(self.logger.connect())
		else:
			self.status(self.logger.disconnect())
		return True

	def on_enable(self, _):
		print "Unimplemented: on_enable"
		return True

	def on_rate(self, _):
		print "Unimplemented: on_rate"
		return True

	def on_key(self, win, ev):
		if ev.string == 'q':
			gtk.main_quit();

	def on_destroy(self, win):
		gtk.main_quit()

        # Methods
	def load_config(self):
		# Serial settings
		device = self.builder.get_object("device")
		baud   = self.builder.get_object("baudrate")
		parity = self.builder.get_object("parity")
		datab  = self.builder.get_object("databits")
		stopb  = self.builder.get_object("stopbits")
		device.set_text(self.config.device)
		baud.set_value(self.config.baudrate)
		parity.set_text(self.config.parity)
		datab.set_value(self.config.databits)
		stopb.set_value(self.config.stopbits)

		# Xively settings
		user  = self.builder.get_object("username")
		pwd   = self.builder.get_object("password")
		api   = self.builder.get_object("apikey")
		user.set_text(self.config.username)
		pwd.set_text(self.config.password)
		api.set_text(self.config.apikey)

		# TODO - send changes back to config

	def update(self, state):
		def setxyz(objs, vals):
			if vals[0]: objs[0].set_text('X: %f' % vals[0])
			if vals[1]: objs[1].set_text('Y: %f' % vals[1])
			if vals[2]: objs[2].set_text('Z: %f' % vals[2])
		def setabs(objs, vals):
			for i in range(0,len(objs)):
				if vals[i]: objs[i].set_text('%f' % vals[i])

		setxyz(self.accs,  state.acc)
		setxyz(self.mags,  state.mag)
		setabs(self.touch, state.touch)
		setabs(self.light, state.light)
		setabs(self.a2ds,  state.a2d)

	def debug(self, state):
		print 'update: ' + str(state)
		print '\tacc - ' + str(state.acc)
		print '\tmag - ' + str(state.mag)
		print '\tlgt - ' + str(state.light)
		print '\ttch - ' + str(state.touch)
		print '\ta2d - ' + str(state.a2d)
	
	def timer(self):
		serial = self.builder.get_object("serial_btn")
		status = self.builder.get_object("conn")

		if self.device.running():
			serial.set_active(True)
			status.set_from_stock(gtk.STOCK_YES, gtk.ICON_SIZE_BUTTON)
		else:
			serial.set_active(False)
			status.set_from_stock(gtk.STOCK_NO,  gtk.ICON_SIZE_BUTTON)
		if self.device.running():
			for item in self.device.process():
				self.update(item)
				#self.debug(item)

		return True

	def run(self):
		self.load_config()
		self.window.show()
		gtk.timeout_add(1000/60, self.timer)
		gtk.main()

	# Private methods
	def status(self, msg):
		if not msg:
			return
		status = self.builder.get_object("status")
		status.push(text=('Error: ' + msg), context_id=0)