# -*- coding: utf-8 -*-
u"""KonamiCommand"""
from __future__ import absolute_import, division, print_function

from Qt import QtGui, QtWidgets

from maya.app.general.mayaMixin import MayaQWidgetBaseMixin

import time

class KonamiCommandWindow(MayaQWidgetBaseMixin, QtWidgets.QMainWindow):
    _UI_WINDOW_NAME = "KonamiCommandWindow"

    _UI_ID = "tm8r_konami_command"

    _VALID_SEQUENCE = [u"↑", u"↑", u"↓", u"↓", u"←", u"→", u"←", u"→", "B", "A"]

    _VALID_SEQUENCE_LEN = len(_VALID_SEQUENCE)

    def __init__(self, parent=None):
        super(KonamiCommandWindow, self).__init__(parent=parent)
        self.setWindowTitle(self._UI_WINDOW_NAME)
        self.setObjectName(self._UI_ID)
        self.command_field = QtWidgets.QLineEdit()
        self.result_label = QtWidgets.QLabel("")
        self.prev_time = time.time()
        self.reset_threshold = 2
        self.current_command = []

    @staticmethod
    def show_ui(*args):
        u"""UIを表示"""
        win = KonamiCommandWindow()
        win._create_ui()

    def _create_ui(self):
        rootWidget = QtWidgets.QWidget(self)
        rootLayout = QtWidgets.QVBoxLayout(self)
        rootWidget.setLayout(rootLayout)

        label = QtWidgets.QLabel(u"Please enter the command.")
        rootLayout.addWidget(label)

        command_layout = QtWidgets.QVBoxLayout()
        self.command_field.setEnabled(False)
        command_layout.addWidget(self.command_field)
        command_layout.addWidget(self.result_label)
        rootLayout.addLayout(command_layout)

        self.setCentralWidget(rootWidget)

        self.show()

    def keyPressEvent(self, event):
        if event.isAutoRepeat():
            return
        pressed = QtGui.QKeySequence(event.key()).toString(QtGui.QKeySequence.NativeText)

        if self.current_command and time.time() - self.prev_time > self.reset_threshold:
            self._reset_command()
            self.current_command.append(pressed)
            self._reflect_keys(self.current_command)
            return

        self.current_command.append(pressed)
        self.prev_time = time.time()
        if len(self.current_command) < self._VALID_SEQUENCE_LEN:
            self._reflect_keys(self.current_command)
            self.result_label.setText("")
            return

        target_command = self.current_command[-self._VALID_SEQUENCE_LEN:]
        self._reflect_keys(target_command)
        if target_command != self._VALID_SEQUENCE:
            self.result_label.setText("Not Match")
            self.result_label.setStyleSheet("color:#ff0000;")
            return

        self.result_label.setText("Match")
        self.result_label.setStyleSheet("color:#00ff00;")

        self._reset_command(False)

    def _reflect_keys(self, keys):
        self.command_field.setText(",".join(keys))

    def _reset_command(self, update_result=True):
        self.current_command = []
        self.prev_time = time.time()
        if update_result:
            self.result_label.setText("")
            self.result_label.setStyleSheet("color:#ffffff;")


KonamiCommandWindow.show_ui()