#
#
#

from __future__ import absolute_import, division, print_function, unicode_literals

from gi.repository import Gtk, Gdk, GObject

from logitech.unifying_receiver import status as _status
from . import config_panel as _config_panel
from . import action as _action, icons as _icons

#
#
#

_RECEIVER_ICON_SIZE = Gtk.IconSize.LARGE_TOOLBAR
_DEVICE_ICON_SIZE = Gtk.IconSize.DIALOG
_STATUS_ICON_SIZE = Gtk.IconSize.LARGE_TOOLBAR
_TOOLBAR_ICON_SIZE = Gtk.IconSize.MENU
_PLACEHOLDER = '~'
_FALLBACK_ICON = 'preferences-desktop-peripherals'

#
#
#

def _make_receiver_box(name):
	frame = Gtk.Frame()
	frame._device = None
	frame.set_name(name)

	icon_set = _icons.device_icon_set(name)
	icon = Gtk.Image.new_from_icon_set(icon_set, _RECEIVER_ICON_SIZE)
	icon.set_padding(2, 2)
	frame._icon = icon

	label = Gtk.Label('Scanning...')
	label.set_alignment(0, 0.5)
	frame._label = label

	pairing_icon = Gtk.Image.new_from_icon_name('network-wireless', _RECEIVER_ICON_SIZE)
	pairing_icon.set_tooltip_text('The pairing lock is open.')
	pairing_icon._tick = 0
	frame._pairing_icon = pairing_icon

	toolbar = Gtk.Toolbar()
	toolbar.set_style(Gtk.ToolbarStyle.ICONS)
	toolbar.set_icon_size(_TOOLBAR_ICON_SIZE)
	toolbar.set_show_arrow(False)
	frame._toolbar = toolbar

	hbox = Gtk.HBox(homogeneous=False, spacing=8)
	hbox.pack_start(icon, False, False, 0)
	hbox.pack_start(label, True, True, 0)
	hbox.pack_start(pairing_icon, False, False, 0)
	hbox.pack_start(toolbar, False, False, 0)

	info_label = Gtk.Label()
	info_label.set_markup('<small>reading ...</small>')
	info_label.set_property('margin-left', 36)
	info_label.set_alignment(0, 0)
	info_label.set_selectable(True)
	frame._info_label = info_label

	def _update_info_label(f):
		device = f._device
		if f._info_label.get_visible() and '\n' not in f._info_label.get_text():
			items = [('Path', device.path), ('Serial', device.serial)] + \
					[(fw.kind, fw.version) for fw in device.firmware]
			f._info_label.set_markup('<small><tt>%s</tt></small>' % '\n'.join('%-13s: %s' % item for item in items))

	def _toggle_info_label(action, f):
		active = action.get_active()
		vb = f.get_child()
		for c in vb.get_children()[1:]:
			c.set_visible(active)

		if active:
			GObject.timeout_add(50, _update_info_label, f)

	toggle_info_action = _action.make_toggle('info', 'Details', _toggle_info_label, frame)
	toolbar.insert(toggle_info_action.create_tool_item(), 0)
	toolbar.insert(_action.pair(frame).create_tool_item(), -1)
	# toolbar.insert(ui.action.about.create_tool_item(), -1)

	vbox = Gtk.VBox(homogeneous=False, spacing=2)
	vbox.set_border_width(2)
	vbox.pack_start(hbox, True, True, 0)
	vbox.pack_start(Gtk.HSeparator(), False, False, 0)
	vbox.pack_start(info_label, True, True, 0)

	frame.add(vbox)
	frame.show_all()

	pairing_icon.set_visible(False)
	_toggle_info_label(toggle_info_action, frame)
	return frame


def _make_device_box(index):
	frame = Gtk.Frame()
	frame._device = None
	frame.set_name(_PLACEHOLDER)

	icon = Gtk.Image.new_from_icon_name(_FALLBACK_ICON, _DEVICE_ICON_SIZE)
	icon.set_alignment(0.5, 0)
	frame._icon = icon

	label = Gtk.Label('Initializing...')
	label.set_alignment(0, 0.5)
	label.set_padding(4, 0)
	frame._label = label

	battery_icon = Gtk.Image.new_from_icon_name(_icons.battery(-1), _STATUS_ICON_SIZE)

	battery_label = Gtk.Label()
	battery_label.set_width_chars(6)
	battery_label.set_alignment(0, 0.5)

	light_icon = Gtk.Image.new_from_icon_name('light_unknown', _STATUS_ICON_SIZE)

	light_label = Gtk.Label()
	light_label.set_alignment(0, 0.5)
	light_label.set_width_chars(8)

	not_encrypted_icon = Gtk.Image.new_from_icon_name('security-low', _STATUS_ICON_SIZE)
	not_encrypted_icon.set_name('not-encrypted')
	not_encrypted_icon.set_tooltip_text('The wireless link between this device and the Unifying Receiver is not encrypted.\n'
										'\n'
										'For pointing devices (mice, trackballs, trackpads), this is a minor security issue.\n'
										'\n'
										'It is, however, a major security issue for text-input devices (keyboards, numpads),\n'
										'because typed text can be sniffed inconspicuously by 3rd parties within range.')

	toolbar = Gtk.Toolbar()
	toolbar.set_style(Gtk.ToolbarStyle.ICONS)
	toolbar.set_icon_size(_TOOLBAR_ICON_SIZE)
	toolbar.set_show_arrow(False)
	frame._toolbar = toolbar

	status_box = Gtk.HBox(homogeneous=False, spacing=2)
	status_box.pack_start(battery_icon, False, True, 0)
	status_box.pack_start(battery_label, False, True, 0)
	status_box.pack_start(light_icon, False, True, 0)
	status_box.pack_start(light_label, False, True, 0)
	status_box.pack_end(toolbar, False, False, 0)
	status_box.pack_end(not_encrypted_icon, False, False, 0)
	frame._status_icons = status_box

	status_vbox = Gtk.VBox(homogeneous=False, spacing=4)
	status_vbox.pack_start(label, True, True, 0)
	status_vbox.pack_start(status_box, True, True, 0)

	device_box = Gtk.HBox(homogeneous=False, spacing=4)
	# device_box.set_border_width(4)
	device_box.pack_start(icon, False, False, 0)
	device_box.pack_start(status_vbox, True, True, 0)
	device_box.show_all()

	info_label = Gtk.Label()
	info_label.set_markup('<small>reading ...</small>')
	info_label.set_property('margin-left', 54)
	info_label.set_selectable(True)
	info_label.set_alignment(0, 0)
	frame._info_label = info_label

	def _update_info_label(f):
		if frame._info_label.get_text().count('\n') < 4:
			device = f._device
			assert device

			items = [None, None, None, None, None, None, None, None]
			hid = device.protocol
			items[0] = ('Protocol', 'HID++ %1.1f' % hid if hid else 'unknown')
			items[1] = ('Polling rate', '%d ms' % device.polling_rate)
			items[2] = ('Wireless PID', device.wpid)
			items[3] = ('Serial', device.serial)
			firmware = device.firmware
			if firmware:
				items[4:] = [(fw.kind, (fw.name + ' ' + fw.version).strip()) for fw in firmware]

			frame._info_label.set_markup('<small><tt>%s</tt></small>' % '\n'.join('%-13s: %s' % i for i in items if i))

	def _toggle_info_label(action, f):
		active = action.get_active()
		if active:
			# set config toggle button as inactive
			f._toolbar.get_children()[-1].set_active(False)

		vb = f.get_child()
		children = vb.get_children()
		children[1].set_visible(active)  # separator
		children[2].set_visible(active)  # info label

		if active:
			GObject.timeout_add(30, _update_info_label, f)

	def _toggle_config(action, f):
		active = action.get_active()
		if active:
			# set info toggle button as inactive
			f._toolbar.get_children()[0].set_active(False)

		vb = f.get_child()
		children = vb.get_children()
		children[1].set_visible(active)  # separator
		children[3].set_visible(active)  # config box
		children[4].set_visible(active)  # unpair button

		if active:
			GObject.timeout_add(30, _config_panel.update, f)

	toggle_info_action = _action.make_toggle('info', 'Details', _toggle_info_label, frame)
	toolbar.insert(toggle_info_action.create_tool_item(), 0)
	toggle_config_action = _action.make_toggle('preferences-system', 'Configuration', _toggle_config, frame)
	toolbar.insert(toggle_config_action.create_tool_item(), -1)

	vbox = Gtk.VBox(homogeneous=False, spacing=2)
	vbox.set_border_width(2)
	vbox.pack_start(device_box, True, True, 0)
	vbox.pack_start(Gtk.HSeparator(), False, False, 0)
	vbox.pack_start(info_label, False, False, 0)

	frame._config_box = _config_panel.create()
	vbox.pack_start(frame._config_box, False, False, 0)

	unpair = Gtk.Button('Unpair')
	unpair.set_image(Gtk.Image.new_from_icon_name('edit-delete', Gtk.IconSize.BUTTON))
	unpair.connect('clicked', _action._unpair_device, frame)
	unpair.set_relief(Gtk.ReliefStyle.NONE)
	unpair.set_property('margin-left', 106)
	unpair.set_property('margin-right', 106)
	unpair.set_property('can-focus', False)  # exclude from tab-navigation
	vbox.pack_end(unpair, False, False, 0)

	vbox.show_all()
	frame.add(vbox)

	_toggle_info_label(toggle_info_action, frame)
	_toggle_config(toggle_config_action, frame)
	return frame


def create(title, name, max_devices, systray=False):
	window = Gtk.Window()
	window.set_title(title)
	window.set_icon_name(_icons.APP_ICON[0])
	window.set_role('status-window')

	vbox = Gtk.VBox(homogeneous=False, spacing=12)
	vbox.set_border_width(4)

	rbox = _make_receiver_box(name)
	vbox.add(rbox)
	for i in range(1, 1 + max_devices):
		dbox = _make_device_box(i)
		vbox.add(dbox)
	vbox.set_visible(True)

	window.add(vbox)

	geometry = Gdk.Geometry()
	geometry.min_width = 320
	geometry.min_height = 32
	window.set_geometry_hints(vbox, geometry, Gdk.WindowHints.MIN_SIZE)
	window.set_resizable(False)

	def _toggle_visible(w, trigger):
		if w.get_visible():
			# hiding moves the window to 0,0
			position = w.get_position()
			w.hide()
			w.move(*position)
		else:
			if isinstance(trigger, Gtk.StatusIcon):
				x, y = w.get_position()
				if x == 0 and y == 0:
					# if the window hasn't been shown yet, position it next to the status icon
					x, y, _ = Gtk.StatusIcon.position_menu(Gtk.Menu(), trigger)
					w.move(x, y)
			w.present()
		return True

	def _set_has_systray(w, systray):
		if systray != w._has_systray:
			w._has_systray = systray
			if systray:
				if w._delete_event_connection is None or not w.get_skip_taskbar_hint():
					w.set_skip_taskbar_hint(True)
					w.set_skip_pager_hint(True)
					if w._delete_event_connection:
						w.disconnect(w._delete_event_connection)
					w._delete_event_connection = w.connect('delete-event', _toggle_visible)
			else:
				if w._delete_event_connection is None or w.get_skip_taskbar_hint():
					w.set_skip_taskbar_hint(False)
					w.set_skip_pager_hint(False)
					if w._delete_event_connection:
						w.disconnect(w._delete_event_connection)
					w._delete_event_connection = w.connect('delete-event', Gtk.main_quit)
					w.present()

	from types import MethodType
	window.toggle_visible = MethodType(_toggle_visible, window)
	window.set_has_systray = MethodType(_set_has_systray, window)
	del MethodType

	window.set_keep_above(True)
	window._delete_event_connection = None
	window._has_systray = None
	window.set_has_systray(systray)

	return window

#
#
#

def _update_receiver_box(frame, receiver):
	frame._label.set_text(str(receiver.status))
	if receiver:
		frame._device = receiver
		frame._icon.set_sensitive(True)
		if receiver.status.lock_open:
			if frame._pairing_icon._tick == 0:
				def _pairing_tick(i, s):
					if s and s.lock_open:
						i.set_sensitive(bool(i._tick % 2))
						i._tick += 1
						return True
					i.set_visible(False)
					i.set_sensitive(True)
					i._tick = 0
				frame._pairing_icon.set_visible(True)
				GObject.timeout_add(1000, _pairing_tick, frame._pairing_icon, receiver.status)
		else:
			frame._pairing_icon.set_visible(False)
			frame._pairing_icon.set_sensitive(True)
			frame._pairing_icon._tick = 0
		frame._toolbar.set_sensitive(True)
	else:
		frame._device = None
		frame._icon.set_sensitive(False)
		frame._pairing_icon.set_visible(False)
		frame._toolbar.set_sensitive(False)
		frame._toolbar.get_children()[0].set_active(False)
		frame._info_label.set_text('')


def _update_device_box(frame, dev):
	if dev is None:
		frame.set_visible(False)
		frame.set_name(_PLACEHOLDER)
		frame._device = None
		_config_panel.update(frame)
		return

	first_run = frame.get_name() != dev.name
	if first_run:
		frame._device = dev
		frame.set_name(dev.name)
		icon_set = _icons.device_icon_set(dev.name, dev.kind)
		frame._icon.set_from_icon_set(icon_set, _DEVICE_ICON_SIZE)
		frame._label.set_markup('<b>%s</b>' % dev.name)
		for i in frame._toolbar.get_children():
			i.set_active(False)

	battery_icon, battery_label, light_icon, light_label, not_encrypted_icon, _ = frame._status_icons
	battery_level = dev.status.get(_status.BATTERY_LEVEL)

	if dev.status:
		frame._label.set_sensitive(True)

		if battery_level is None:
			battery_icon.set_sensitive(False)
			battery_icon.set_from_icon_name(_icons.battery(-1), _STATUS_ICON_SIZE)
			battery_label.set_markup('<small>no status</small>')
			battery_label.set_sensitive(True)
		else:
			battery_icon.set_from_icon_name(_icons.battery(battery_level), _STATUS_ICON_SIZE)
			battery_icon.set_sensitive(True)
			battery_label.set_text('%d%%' % battery_level)
			battery_label.set_sensitive(True)

		battery_status = dev.status.get(_status.BATTERY_STATUS)
		battery_icon.set_tooltip_text(battery_status or '')

		light_level = dev.status.get(_status.LIGHT_LEVEL)
		if light_level is None:
			light_icon.set_visible(False)
			light_label.set_visible(False)
		else:
			icon_name = 'light_%03d' % (20 * ((light_level + 50) // 100))
			light_icon.set_from_icon_name(icon_name, _STATUS_ICON_SIZE)
			light_icon.set_visible(True)
			light_label.set_text('%d lux' % light_level)
			light_label.set_visible(True)

		not_encrypted_icon.set_visible(dev.status.get(_status.ENCRYPTED) == False)

	else:
		frame._label.set_sensitive(False)

		battery_icon.set_sensitive(False)
		battery_label.set_sensitive(False)
		if battery_level is None:
			battery_label.set_markup('<small>inactive</small>')
		else:
			battery_label.set_markup('%d%%' % battery_level)

		light_icon.set_visible(False)
		light_label.set_visible(False)
		not_encrypted_icon.set_visible(False)

		frame._toolbar.get_children()[-1].set_active(False)

	frame.set_visible(True)
	_config_panel.update(frame)


def update(window, receiver, device=None):
	assert receiver is not None
	# print ("update", receiver, receiver.status, len(receiver), device)
	window.set_icon_name(_icons.APP_ICON[1 if receiver else -1])

	vbox = window.get_child()
	frames = list(vbox.get_children())
	assert len(frames) == 1 + receiver.max_devices, frames

	if device is None:
		_update_receiver_box(frames[0], receiver)
		if not receiver:
			for frame in frames[1:]:
				_update_device_box(frame, None)
	else:
		_update_device_box(frames[device.number], None if device.status is None else device)