import urwid.curses_display
import urwid
import sys,time

class Conversation(object):
	def __init__(self):
		self.column1_edit = urwid.Edit(caption="Send: ")
		self.column1_check = urwid.CheckBox("Link to other",state=True,on_state_change=self.on_link1_changed)
		self.column1_disconnect = urwid.Button("Disconnect", lambda x: 
				self.add_message(time.strftime("%H:%M:%S: ") + "FOO")
			)
		self.column1 = urwid.ListBox([
			self.column1_edit, 
			self.column1_check, 
			urwid.AttrWrap(self.column1_disconnect,'button')])
		
		self.column2_edit = urwid.Edit(caption="Send: ")
		self.column2_check = urwid.CheckBox("Link to other",state=True,on_state_change=self.on_link2_changed)
		self.column2_disconnect = urwid.Button("Disconnect", lambda x:
				self.add_message(time.strftime("%H:%M:%S: ") + "FOO")
			)
		self.column2 = urwid.ListBox([
			self.column2_edit,
			self.column2_check,
			urwid.AttrWrap(self.column2_disconnect,'button')])
	
		self.columns = urwid.Columns([self.column1, self.column2])

		self.messages = urwid.SimpleListWalker([urwid.Text("bbalasdasd"), urwid.Text("blasasd")])
		self.textbox = urwid.ListBox(self.messages)
		self.body = urwid.Pile([self.columns,self.textbox])

		self.widget_header = urwid.Text("F2 Toggle Link 1 | F3 Toggle Link 2 |           | F10 - EXIT")

		self.top = urwid.Frame(body=self.body, header=urwid.AttrWrap(self.widget_header,'header'))

		self.focus_ring = [ 
							[(self.body,self.textbox)],
							[(self.body,self.columns), (self.columns, self.column1), (self.column1, 0)], 
							[(self.body,self.columns), (self.columns, self.column1), (self.column1, 1)], 
							[(self.body,self.columns), (self.columns, self.column1), (self.column1, 2)],
							[(self.body,self.columns), (self.columns, self.column2), (self.column2, 0)],
							[(self.body,self.columns), (self.columns, self.column2), (self.column2, 1)],
							[(self.body,self.columns), (self.columns, self.column2), (self.column2, 2)],
		]

	def add_message(self,msg):
		w=urwid.Text(msg)
		self.messages.append(w)
		self.textbox.set_focus(len(self.messages))
	def main(self):
		self.ui = urwid.curses_display.Screen()
		self.ui.register_palette([
			('header', 'black', 'dark cyan', 'standout'),
			('button', 'white', 'dark blue', 'standout'),
			('keylabel', 'white', 'dark cyan', 'standout'),
			])
		self.ui.run_wrapper( self.run )
	
	def run(self):
		size = self.ui.get_cols_rows()

		while True:
			try:
				keys = self.ui.get_input()
			except KeyboardInterrupt:
				sys.exit(0)

			for k in keys:
				if k == "window resize":
					size = self.ui.get_cols_rows()
				elif k == "enter":
					if self.body.get_focus() == self.columns \
						and self.columns.get_focus() == self.column1 \
						and  self.column1.get_focus()[0] == self.column1_edit:
						self.add_message(self.column1_edit.get_text()[0])
					elif self.body.get_focus() == self.columns \
						and self.columns.get_focus() == self.column2 \
						and  self.column2.get_focus()[0] == self.column2_edit:
						self.add_message(self.column2_edit.get_text()[0])
					else:
						self.top.keypress( size, k )
				elif k == "tab":
					self.focus_ring.reverse()
					elem = self.focus_ring.pop()
					for pair in elem:
						pair[0].set_focus(pair[1])
					self.focus_ring.insert(0,elem)
					self.focus_ring.reverse()
				elif k == "f2":
					self.column1_check.toggle_state()
				elif k == "f3":
					self.column2_check.toggle_state()
				elif k == "f10":
					sys.exit(0)
				else:
					self.top.keypress( size, k )

			self.draw_screen( size )
	
	def draw_screen(self, size):
		canvas = self.top.render( size, focus=True )
		self.ui.draw_screen( size, canvas )

	def on_link1_changed(self,a,b):
		pass
	def on_link2_changed(self,a,b):
		pass

Conversation().main()