from PyQt4 import QtGui
from Ui_Preferences import Ui_Preferences

class PreferencesDialog(QtGui.QDialog):
    def __init__(self, backend=None):
        QtGui.QWidget.__init__(self, None)
        self.backend = backend
        self.preferences = backend.preferences()
        self.ui = Ui_Preferences()
        self.ui.setupUi(self)
        self.fillUi()

    def fillUi(self):
        self.fillMaximized()
        self.fillHideReadFeedEntries()
        self.fillShowOnlyUnreadFeeds()
        self.fillProxySettings()
        self.fillDaysToKeepFeedEntries()

    def fillMaximized(self):
        maximized = self.preferences.startMaximized()
        self.ui.startMaximized.setChecked(maximized)

    def fillHideReadFeedEntries(self):
        hideRead = self.preferences.hideReadFeedEntries()
        self.ui.hideReadFeedEntries.setChecked(hideRead)

    def fillShowOnlyUnreadFeeds(self):
        showOnlyUnreadFeeds = self.preferences.showOnlyUnreadFeeds()
        self.ui.showOnlyUnreadFeeds.setChecked(showOnlyUnreadFeeds)

    def fillProxySettings(self):
        if self.preferences.isProxyConfigured():
            self.ui.proxyHost.setText(self.preferences.proxyHost())
            self.ui.proxyPort.setText(str(self.preferences.proxyPort()))

    def fillDaysToKeepFeedEntries(self):
        days = self.preferences.daysToKeepFeedEntries()
        self.ui.daysToKeepFeedEntries.setText(str(days))

    def startMaximizedChanged(self, change):
        if change:
            self.preferences.setStartMaximized(True)
        else:
            self.preferences.setStartMaximized(False)

    def hideReadFeedEntriesChanged(self, change):
        if change:
            self.preferences.setHideReadFeedEntries(True)
        else:
            self.preferences.setHideReadFeedEntries(False)

    def showOnlyFeedsWithUnreadEntries(self, change):
        if change:
            self.preferences.setShowOnlyUnreadFeeds(True)
        else:
            self.preferences.setShowOnlyUnreadFeeds(False)

    def storeProxySettings(self):
        proxyHost = self.ui.proxyHost.text()
        if proxyHost.isEmpty():
            proxyHost = None
        self.preferences.setProxyHost(proxyHost)

        proxyPort = self.ui.proxyPort.text()
        if proxyPort.isEmpty():
            proxyPort = None
        self.preferences.setProxyPort(proxyPort)

    def daysToKeepFeedEntriesFinishedEditing(self):
        text = self.ui.daysToKeepFeedEntries.text()
        if not text.isEmpty():
            text = str(text)
            self.preferences.setDaysToKeepFeedEntries(text)

    def accept(self):
        self.storeProxySettings()
        self.preferences.commit();
        QtGui.QDialog.accept(self)

    def reject(self):
        self.preferences.rollback()
        QtGui.QDialog.reject(self)