# coding: utf8

import logging

import sys

import signal
from dialog import Dialog
import locale

from core import OrderListener
from core.Utils import Utils
from core.ConfigurationManager import SettingLoader
from neurons import Say

logging.basicConfig()
logger = logging.getLogger("jarvis")


def signal_handler(signal, frame):
    print "\n"
    Utils.print_info("Ctrl+C pressed. Killing Jarvis")
    sys.exit(0)

signal.signal(signal.SIGINT, signal_handler)


class ShellGui:
    def __init__(self):
        # get settings
        self.settings = SettingLoader.get_settings()
        locale.setlocale(locale.LC_ALL, '')

        self.d = Dialog(dialog="dialog")

        self.d.set_background_title("Jarvis shell UI")

        self.show_main_menu()

    def show_main_menu(self):
        """
        Main menu of the shell UI.
        Provide a list of action the user can select to test his settings
        :return:
        """

        code, tag = self.d.menu("Test your JARVIS settings from this menu",
                                choices=[("TTS", "Text to Speech"),
                                         ("STT", "Speech to text")])

        if code == self.d.OK:
            if tag == "STT":
                self.show_stt_test_menu()
            if tag == "TTS":
                self.show_tts_test_menu()

    def show_stt_test_menu(self):
        # we get STT from settings
        stt_list = self.settings.stts
        logger.debug("Loaded stt list: %s" % str(stt_list))
        choices = self._get_choices_tuple_from_list(stt_list)

        code, tag = self.d.menu("Select the STT to test:",
                                choices=choices)

        if code == self.d.CANCEL:
            self.show_main_menu()

        if code == self.d.OK:
            self.d.infobox("Please talk now")
            order_listener = OrderListener(callback=self.callback_stt, stt=str(tag))
            order_listener.load_stt_plugin()

    def show_tts_test_menu(self, sentence_to_test=None):
        """
         A menu for testing text to speech
        :return:
        """
        continue_bool = True
        # if we don't have yet a sentence to test, we ask the user to type one
        if sentence_to_test is None:
            # First, we ask the user to type a sentence that will be passed in the TTS
            code, sentence_to_test = self.d.inputbox("Please type the sentence you want to test", height=20, width=50)

            if code == self.d.CANCEL:
                self.show_main_menu()
                continue_bool = False
            if code == self.d.OK:
                continue_bool = True

        if continue_bool:
            # we get TTS from settings
            tts_list = self.settings.ttss

            # create a list of tuple that can be used by the dialog menu
            choices = self._get_choices_tuple_from_list(tts_list)

            code, tag = self.d.menu("Sentence to test: %s" % sentence_to_test,
                                    choices=choices)

            if code == self.d.CANCEL:
                self.show_tts_test_menu()
            if code == self.d.OK:
                self._run_tts_test(tag, sentence_to_test)
                # then go back to this menu with the same sentence
                self.show_tts_test_menu(sentence_to_test=sentence_to_test)

    def _run_tts_test(self, tts_name, sentence_to_test):
        """
        Call the TTS
        :param tts_name: Name of the TTS module to launch
        :param sentence_to_test:
        :return:
        """
        sentence_to_test = sentence_to_test.encode('utf-8')
        tts_name = tts_name.encode('utf-8')

        Say(message=sentence_to_test, tts=tts_name)

    @staticmethod
    def _get_choices_tuple_from_list(list_to_convert):
        """
        Return a list of tup that can be used in Dialog menu
        :param list_to_convert: List of object to convert into tuple
        :return:
        """
        # create a list of tuple that can be used by the dialog menu
        choices = list()
        for el in list_to_convert:
            tup = (str(el.name), str(el.parameters))
            choices.append(tup)
            logger.debug("Add el to the list: %s with parameters: %s" % (str(el.name), str(el.parameters)))
        return choices

    def callback_stt(self, audio):
        """
        Callback function called after the STT has finish his job
        :param audio: Text from the translated audio
        """
        code = self.d.msgbox("The STT engine think you said:\n %s" % audio, width=50)

        if code == self.d.OK:
            self.show_stt_test_menu()