from PySide import QtGui, QtCore

import copy

from gamestate import QuestionAnswers
from player import Player

class QuestionWindow(QtGui.QDialog):
	def __init__(self, players, section, qnumber, question, answers=None, parent=None):
		super(QuestionWindow, self).__init__(parent)

		self.players = players
		self.section = section
		self.qnumber = qnumber
		self.question = question
		if answers is not None:
			self.answers = answers
		else:
			self.answers = QuestionAnswers(self.section, self.qnumber)

		self._setupGui()
		self.setWindowTitle("Seopardy - %s - %d" % (section, qnumber*100))

	def get_answers(self):
		return self.answers

	def _mkQuestionLabel(self, text):
		question = QtGui.QLabel(text, alignment=QtCore.Qt.AlignCenter)
		question.setWordWrap(True)
		question.setStyleSheet("QLabel { font-size: 40px; }")

		return question

	def _setupGui(self):
		self.layout = QtGui.QVBoxLayout()

		seclabel = QtGui.QLabel(self.section)
		seclabel.setStyleSheet("QLabel { font-size: 30px; }")
		self.layout.addWidget(seclabel, alignment=QtCore.Qt.AlignCenter)
		self.layout.addStretch()

		qlabel = None
		if self.question["Type"] == "Text":
			qlabel = self._mkQuestionLabel(self.question["Question"])
		elif self.question["Type"] == "Music":
			qlabel = self._mkQuestionLabel("Listen...")
		elif self.question["Type"] == "Image":
			qlabel = QtGui.QLabel()
			pixmap = QtGui.QPixmap()
			pixmap.loadFromData(open(self.question["Question"]).read())
			qlabel.setPixmap(pixmap)
		else:
			raise ValueError("%s is an unknown type for section %s question name %s" % (self.question["Type"], self.section, self.question["Name"]))

		self.layout.addWidget(qlabel)
		self.layout.addStretch()

		self.setLayout(self.layout)

	def keyPressEvent(self, e):
		if e.key() == QtCore.Qt.Key_Escape:
			if not self.answers.is_answered():
				self.answers.nobody_knew()
			self.close()
		elif not self.answers.is_answered() and e.key() >= ord('1') and e.key() <= ord(str(len(self.players))):
			player = self.players[e.key() - ord('1')]
			qawin = QuestionAnswerWindow(player, self)
			res = qawin.exec_()
			if res == QuestionAnswerWindow.CORRECT:
				self.answers.add_try(player, correct=True)
				self.accept()
			elif res == QuestionAnswerWindow.WRONG:
				self.answers.add_try(player, correct=False)

class QuestionAnswerWindow(QtGui.QDialog):
	CORRECT = 1
	WRONG = 2
	OOPS = 3

	def __init__(self, player, parent=None):
		super(QuestionAnswerWindow, self).__init__(parent)
		self.player = player

		self._setupGui()

		# move window to bottom right of screen
		g = QtGui.QApplication.desktop().screenGeometry()
		self.show()
		cPos = self.rect()
		self.move(g.width() - cPos.width(), g.height() - cPos.height())

	def _setupGui(self):
		self.layout = QtGui.QVBoxLayout()

		self.plabel = QtGui.QLabel(self.player.name)
		self.plabel.setStyleSheet("QLabel { font-size: 60px; }")
		self.layout.addWidget(self.plabel, alignment=QtCore.Qt.AlignCenter)

		btnbox = QtGui.QHBoxLayout()
		right = QtGui.QPushButton("Correct")
		right.clicked.connect(lambda: self.done(self.CORRECT))
		btnbox.addWidget(right)
		wrong = QtGui.QPushButton("Wrong")
		wrong.clicked.connect(lambda: self.done(self.WRONG))
		btnbox.addWidget(wrong)
		btnbox.addStretch()
		oops = QtGui.QPushButton("Oops")
		oops.clicked.connect(lambda: self.done(self.OOPS))
		btnbox.addWidget(oops)
		self.layout.addLayout(btnbox)

		self.setLayout(self.layout)


class EditAnswersWindow(QtGui.QDialog):
	def __init__(self, players, answers, parent=None):
		super(EditAnswersWindow, self).__init__(parent)
		self._players = players
		self._answers = answers
		self._nobody = not answers.got_answered()
		if self._answers:
			self._tries = copy.copy(self._answers.get_tries())
		else:
			self._tries = []

		self._setupGui()

		self.installEventFilter(KeyGrabber((QtCore.Qt.Key.Key_Left, QtCore.Qt.Key.Key_Right), self))

	def get_new_answers(self):
		qa = QuestionAnswers(self._answers.section, self._answers.qnumber)
		rightPlayer = None
		for player, correct in self._tries:
			if correct:
				rightPlayer = player
			else:
				qa.add_try(player, correct)

		if rightPlayer:
			qa.add_try(rightPlayer, True)
		elif self._nobody:
			qa.nobody_knew()

		return qa

	def _setupGui(self):
		self.layout = QtGui.QVBoxLayout()

		self.qlabel = QtGui.QLabel("Questions")
		self.qlabel.setStyleSheet("QLabel { font-size: 30px; }")
		self.layout.addWidget(self.qlabel, alignment=QtCore.Qt.AlignCenter)

		self.answerlayout = QtGui.QVBoxLayout()
		self._resetAllButtons()
		self.layout.addLayout(self.answerlayout)

		self.xlabel = QtGui.QLabel("+/- right/wrong, d delete, a add, arrows change player")
		self.xlabel.setStyleSheet("QLabel { font-size: 15px; }")
		self.layout.addWidget(self.xlabel)

		self.setLayout(self.layout)

	def keyPressEvent(self, e):
		if e.key() == QtCore.Qt.Key_Escape:
			self.close()
		else:
			currFocus = self._getCurrFocus()
			if currFocus is None and e.key() != QtCore.Qt.Key_A:
				return

			nothingDone = False
			if e.key() == QtCore.Qt.Key_Plus:
				self._nobody = False
				for i, (player, correct) in enumerate(self._tries):
					self._tries[i] = (player, i==currFocus)
				if currFocus == len(self._tries):
					self._nobody = True
			elif e.key() == QtCore.Qt.Key_Minus:
				if currFocus == len(self._tries):
					if len(self._tries) == 0:
						self._nobody = False
				else:
					self._tries[currFocus] = (self._tries[currFocus][0], False)
			elif e.key() == QtCore.Qt.Key_A:
				self._tries.append((self._players[0], False))
				self._makeNobodyConsistent()
				currFocus = len(self._tries) - 1
			elif e.key() == QtCore.Qt.Key_D and currFocus < len(self._tries):
				del self._tries[currFocus]
			elif e.key() == QtCore.Qt.Key_Left and currFocus < len(self._players):
				playlen = len(self._players)
				prevPlayer = self._players[(self._players.index(self._tries[currFocus][0])-1+playlen)%playlen]
				self._tries[currFocus] = (prevPlayer, self._tries[currFocus][1])
			elif e.key() == QtCore.Qt.Key_Right and currFocus < len(self._tries):
				playlen = len(self._players)
				nextPlayer = self._players[(self._players.index(self._tries[currFocus][0])+1+playlen)%playlen]
				self._tries[currFocus] = (nextPlayer, self._tries[currFocus][1])
			else:
				super(EditAnswersWindow, self).keyPressEvent(e)
				nothingDone = True

			if not nothingDone:
				self._resetAllButtons()
				self.updateGeometry()

				# reset focus
				#print("setting focus to", min(currFocus, self.answerlayout.count()), self.answerlayout.itemAt(min(currFocus, self.answerlayout.count())).widget().text(), self.answerlayout.itemAt(min(currFocus, self.answerlayout.count())).widget().hasFocus())
				self.answerlayout.itemAt(min(currFocus, self.answerlayout.count())).widget().setFocus(QtCore.Qt.FocusReason.NoFocusReason)
				#print("setting focus to", min(currFocus, self.answerlayout.count()), self.answerlayout.itemAt(min(currFocus, self.answerlayout.count())).widget().text(), self.answerlayout.itemAt(min(currFocus, self.answerlayout.count())).widget().hasFocus())
				#print(self.focusWidget())
				#if self.focusWidget():
				#	print("widget", self.focusWidget().text())

	def _makeNobodyConsistent(self):
		if len(self._tries) > 0:
			someoneKnew = any([c for p, c in self._tries])
			self._nobody = not someoneKnew

	def _getCurrFocus(self):
		if self.focusWidget() is not None:
			for i in range(self.answerlayout.count()):
				if self.answerlayout.itemAt(i).widget() == self.focusWidget():
					return i
		return None

	def _resetAllButtons(self):
		f = self.answerlayout.takeAt(0)
		while f is not None:
			f.widget().deleteLater()
			f = self.answerlayout.takeAt(0)

		# add buttons
		for player, correct in self._tries:
			self._addAnswerButton(player, correct)

		# add the nobody button
		self._addAnswerButton(Player("nobody", QtGui.QColor(128, 128, 128)), self._nobody)

	def _addAnswerButton(self, player, correct=False):
		prefix = "+" if correct else "-"
		btn = QtGui.QPushButton("\n%s%s\n" % (prefix, player.name), self)
		btn.setStyleSheet("QPushButton { background-color: %s; color: white; font-size: 20px; border: none; }" % (player.color.name(),))
		btn.installEventFilter(KeyGrabber((QtCore.Qt.Key.Key_Left, QtCore.Qt.Key.Key_Right), self))
		self.answerlayout.addWidget(btn)

class KeyGrabber(QtCore.QObject):
	def __init__(self, keys, parent, *args, **kwargs):
		super(KeyGrabber, self).__init__(parent, *args, **kwargs)
		self._keys = keys
		self._parent = parent

	def eventFilter(self, obj, e):
		if e.type() == QtCore.QEvent.KeyPress:
			if e.key() in self._keys:
				self._parent.keyPressEvent(e)
				return True
		return QtCore.QObject.eventFilter(self, obj, e)