#!/usr/bin/env python2.5
#
# Copyright (c) 2008, Caio Begotti. All rights reserved.
# PyMichaelvis: PyQt version of Vinicius Della Libera's Micha Elvis 2008
#
# This file is free software. You are free to use this file in any way you like
# However, if you change it you should note in this file that you did and who
# you are, you also need to change the version string if you do. That way
# I will not get support questions for software that is not entirely mine.

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
# EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# basic modules
import sys
import os
import re

# qt's signal and slot support
from PyQt4 import QtCore
from PyQt4.QtCore import QString

# for the GUI objects
from PyQt4 import QtGui
from PyQt4.QtGui import QIcon
from PyQt4.QtGui import QMenu

# for fetching and parsing
from StringIO import StringIO
import pycurl
import urllib

class Systray(QtGui.QMainWindow):
	def __init__(self):
		QtGui.QMainWindow.__init__(self)

		if QtGui.QSystemTrayIcon.isSystemTrayAvailable():
			self.quitAction = QtGui.QAction('Fechar', self)
			QtCore.QObject.connect(self.quitAction, QtCore.SIGNAL('triggered()'), QtGui.QApplication.instance(), QtCore.SLOT('quit()'))

			self.createTrayIcon()
		else:
			# it's unlikely you will ever hit this
			print 'No system tray available, aborting.'
			sys.exit(1)

	def textWindow(self, definition):
		# formatting the text to be shown
		self.text = QtGui.QTextEdit()
		self.text.setReadOnly(True)
		self.text.setHtml(definition)
		self.text.setStyleSheet("QTextEdit {font-size: 16pt;}")

		# window properties
		self.setCentralWidget(self.text)
		self.setWindowTitle(self.tr("PyMichaelvis 1.0"))
		self.setWindowIcon((QtGui.QIcon('icons/michaelvis.png')))
		self.resize(400, 250)

		# center the window according the screen size
		screen = QtGui.QDesktopWidget().screenGeometry()
		size =  self.geometry()
		self.move((screen.width()-size.width())/2, (screen.height()-size.height())/2)

		# it's showtime
		self.show()

	def getDefinition(self):
		# we don't want overlapping windows
		self.hide()

		text = QtGui.QInputDialog.getText(self,
				self.tr('PyMichaelvis 1.0'),
				self.tr('<center>Qual palavra quer saber?</center>'),
				QtGui.QLineEdit.Normal, self.tr(''))

		if text[1] == False:
			error = '<center><p style="font-size: 175px;">:-(<p></center>'
			self.textWindow(error)

		text = urllib.quote_plus(unicode(text[0]).encode("latin1")) #first element of a unicoded qstring
		char = text[0] # first char of a regular string

		# by using /var/lib we would need root access
		home = os.path.expanduser("~")
		dicthome = home + "/.pymichaelvis/"
		if not os.path.exists(dicthome):
			os.mkdir(dicthome)

		# a specific place for every definition
		chardir = dicthome + char
		if not os.path.exists(chardir):
			os.mkdir(chardir)

		entry = chardir + "/" + text
		if not os.path.exists(entry):
			# convert a utf-8 qstring to latin1 then escape it all to be url-friendly
			path = "http://michaelis.uol.com.br/moderno/portugues/index.php?lingua=portugues-portugues&palavra="
			url = path + text
			body = StringIO()

			# curl thingies
			c = pycurl.Curl()
			c.setopt(c.URL, str(url))
			c.setopt(c.WRITEFUNCTION, body.write)
			c.perform()
			c.close()
	
			# hack to 'grep' the term
			contents = body.getvalue()
			data = str(contents)
			temp = '/tmp/pymichaelvis.buf'
			file = open(temp, 'w')
			file.write(data)
			file.close()
		else:
			temp = entry

		# are words without syllabification caught with this?
		reg = re.compile('palavraComPontos')
		strings = open(temp, 'r')

		for line in strings:
			m = reg.search(line)
			if m:
				definition = m.string
				if definition:
					file = open(entry, "w")
					file.write(definition)
					file.close()
					self.textWindow(definition)
				break
			else:
				error = '<center><p style="font-size: 175px;">:-(<p></center>'
				self.textWindow(error)

	def setIcon(self):
		iconPath = QString('icons/michaelvis.png')
		iconObject = QIcon(iconPath)
		return QtGui.QSystemTrayIcon(iconObject)

	def trayBehavior(self, reason):
		if reason != QtGui.QSystemTrayIcon.Context:
			self.getDefinition()

	def createTrayIcon(self):
		self.trayIconMenu = QtGui.QMenu(self)
		self.trayIconMenu.clear()
		self.trayIconMenu.addAction(self.quitAction)

		self.trayIcon = self.setIcon()
		self.trayIcon.setContextMenu(self.trayIconMenu)
		self.trayIcon.show()

		QtCore.QObject.connect(self.trayIcon, QtCore.SIGNAL('activated(QSystemTrayIcon::ActivationReason)'), self.trayBehavior)

	def closeEvent(self, event):
		event.ignore()
		self.hide()

if __name__ == '__main__':
	app = QtGui.QApplication(sys.argv)
	tray = Systray()
	sys.exit(app.exec_())