"""
Provider Info Page, used in First run Wizard
"""
import logging

from PyQt4 import QtCore
from PyQt4 import QtGui

import requests

from leap.base import exceptions as baseexceptions
#from leap.crypto import certs
from leap.eip import exceptions as eipexceptions

from leap.gui.progress import ValidationPage
from leap.util.web import get_https_domain_and_port

from leap.gui.constants import APP_LOGO, pause_for_user

logger = logging.getLogger(__name__)


class ProviderInfoPage(ValidationPage):
    def __init__(self, parent=None):
        super(ProviderInfoPage, self).__init__(parent)

        self.setTitle("Provider Info")
        #self.setSubTitle("Available information about chosen provider.")

        self.setPixmap(
            QtGui.QWizard.LogoPixmap,
            QtGui.QPixmap(APP_LOGO))

        self.prev_page = "providerselection"
        self.infoWidget = None
        #self.current_page = "providerinfo"

    def create_info_panel(self):
        # Use stacked widget instead
        # of reparenting the layout.

        self.infoWidget = QtGui.QStackedWidget()

        info = QtGui.QWidget()
        layout = QtGui.QVBoxLayout()

        displayName = QtGui.QLabel("")
        description = QtGui.QLabel("")
        enrollment_policy = QtGui.QLabel("")
        # XXX set stylesheet...
        # prettify a little bit.
        # bigger fonts and so on...

        layout.addWidget(displayName)
        layout.addWidget(description)
        layout.addWidget(enrollment_policy)
        layout.addStretch(1)

        info.setLayout(layout)
        self.infoWidget.addWidget(info)

        self.layout.addWidget(self.infoWidget)

        # add refs to self to allow for
        # updates.
        # Watch out! Have to get rid of these references!
        # this should be better handled with signals !!
        self.displayName = displayName
        self.description = description
        self.enrollment_policy = enrollment_policy

    def show_provider_info(self):

        # XXX get multilingual objects
        # directly from the config object

        lang = "en"
        pconfig = self.wizard().providerconfig

        dn = pconfig.get('display_name')
        display_name = dn[lang] if dn else ''
        domain_name = self.field('provider_domain')

        self.displayName.setText(
            "<b>%s</b> https://%s" % (display_name, domain_name))

        desc = pconfig.get('description')
        description_text = desc[lang] if desc else ''
        self.description.setText(
            "<i>%s</i>" % description_text)

        enroll = pconfig.get('enrollment_policy')
        if enroll:
            self.enrollment_policy.setText(
                'enrollment policy: %s' % enroll)

    def _do_checks(self, update_signal=None):
        """
        executes actual checks in a separate thread
        """
        # We're done!
        self.set_done()

    def _do_validation(self):
        """
        called after _do_checks has finished
        (connected to checker thread finished signal)
        """
        print 'validation...'
        prevpage = "providerselection"
        errors = self.wizard().get_validation_error(prevpage)

        if not errors:
            self.hide_progress()
            self.create_info_panel()
            self.show_provider_info()

        else:
            logger.debug('going back with errors')
            logger.debug('ERRORS: %s' % errors)
            self.go_back()

    def nextId(self):
        wizard = self.wizard()
        next_ = "providersetupvalidation"
        return wizard.get_page_index(next_)

    #def isComplete(self):
        #return self.is_done()

    def initializePage(self):
        super(ProviderInfoPage, self).initializePage()
        self.show_progress()
        self.set_undone()
        self.completeChanged.emit()

    def cleanupPage(self):
        wizard = self.wizard()

        # XXX makes sense now?
        # this was created on previous...
        if hasattr(wizard, 'providerconfig'):
            del self.wizard().providerconfig

        if self.infoWidget:
            QtCore.QObjectCleanupHandler().add(
                self.infoWidget)

        # refactor this into some kind of destructor
        del self.displayName
        del self.description
        del self.enrollment_policy