from gi.repository import Gtk

from settings import load_words_from_file, manually_add_question, save_questions_to_file
from exercise import Question

class CallbackHandler(object):
	def __init__(self, gtk_builder):
		self.builder = gtk_builder
		self.question = None
	def on_manually_add_submit_button_clicked(self, widget):
		question_view = self.builder.get_object("add_question_question_view")
		answer_view = self.builder.get_object("add_question_answer_view")

		question = question_view.get_text()
		answer = answer_view.get_text()

		try:
			manually_add_question(question, answer)
		except:
			return

		question_view.set_text("")
		answer_view.set_text("")

	def on_load_from_file_chooser_file_set(self, widget):
		file_chooser = self.builder.get_object("load_from_file_chooser")
		file_name = file_chooser.get_filename()
		load_words_from_file(file_name)

	def on_save_questions_to_file_button_clicked(self, widget):
		dialog = Gtk.FileChooserDialog("Please choose a file", None
			, Gtk.FileChooserAction.SAVE
			, (Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL
				, Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
		response = dialog.run()
		if(response == Gtk.ResponseType.CANCEL):
			dialog.destroy()
			return
		file_name = dialog.get_filename()
		dialog.destroy()
		save_questions_to_file(file_name)

	def on_submit_answer_button_clicked(self, widget):
		answer_view = self.builder.get_object("answer_view")
		correct_answer_view = self.builder.get_object("correct_answer_view")
		answer_was_correct_view = self.builder.get_object("answer_was_correct_view")

		dispatch_answer_was_correct = {True: "That is correct:"
						, False: "Wrong, correct was:"}

		submit_answer_button = widget
		submit_answer_button.set_sensitive(False)

		answer = answer_view.get_text()
		was_correct = self.question.submit_answer(answer)

		correct_answer_view.set_text(self.question.answer)
		answer_was_correct_view.set_text(dispatch_answer_was_correct[was_correct])
		
	def on_next_question_button_clicked(self, widget):
		answer_view = self.builder.get_object("answer_view")
		correct_answer_view = self.builder.get_object("correct_answer_view")
		answer_was_correct_view = self.builder.get_object("answer_was_correct_view")
		submit_answer_button = self.builder.get_object("submit_answer_button")
		question_view = self.builder.get_object("question_view")

		submit_answer_button.set_sensitive(True)
		answer_view.set_text("")
		correct_answer_view.set_text("")
		answer_was_correct_view.set_text("")

		self.question = Question.fetch()
		
		question_view.set_text(self.question.question)