# -*- coding: utf-8 -*-

# Copyright(C) 2013 Julien Veyssier
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.

from __future__ import print_function

import codecs

import requests
from PyQt5.QtCore import Qt, pyqtSlot as Slot
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtWidgets import QFrame, QFileDialog

from weboob.applications.qcookboob.ui.recipe_ui import Ui_Recipe
from weboob.capabilities.base import empty
from weboob.tools.capabilities.recipe import recipe_to_krecipes_xml


class Recipe(QFrame):
    def __init__(self, recipe, backend, parent=None):
        super(Recipe, self).__init__(parent)
        self.parent = parent
        self.ui = Ui_Recipe()
        self.ui.setupUi(self)

        self.ui.exportButton.clicked.connect(self.export)

        self.recipe = recipe
        self.backend = backend
        self.gotThumbnail()

        self.ui.idEdit.setText(u'%s@%s' % (recipe.id, backend.name))
        if not empty(recipe.title):
            self.ui.titleLabel.setText(recipe.title)
        if not empty(recipe.nb_person):
            nbstr = '-'.join(str(num) for num in recipe.nb_person)
            self.ui.nbPersonLabel.setText(nbstr)
        else:
            self.ui.nbPersonLabel.parent().hide()
        if not empty(recipe.preparation_time):
            self.ui.prepTimeLabel.setText('%s min' % recipe.preparation_time)
        else:
            self.ui.prepTimeLabel.parent().hide()
        if not empty(recipe.cooking_time):
            self.ui.cookingTimeLabel.setText('%s min' % recipe.cooking_time)
        else:
            self.ui.cookingTimeLabel.parent().hide()
        if not empty(recipe.ingredients):
            txt = u''
            for ing in recipe.ingredients:
                txt += u'* %s\n' % ing
            self.ui.ingredientsPlain.setPlainText(u'%s' % txt)
        else:
            self.ui.ingredientsPlain.parent().hide()
        if not empty(recipe.author):
            self.ui.authorLabel.setText(u'%s' % recipe.author)
        else:
            self.ui.authorLabel.parent().hide()
        if not empty(recipe.instructions):
            self.ui.instructionsPlain.setPlainText(u'%s' % recipe.instructions)
        else:
            self.ui.instructionsPlain.parent().hide()
        if not empty(recipe.comments):
            txt = u''
            for com in recipe.comments:
                txt += u'* %s\n' % com
            self.ui.commentsPlain.setPlainText(u'%s' % txt)
        else:
            self.ui.commentsPlain.parent().hide()

        self.ui.verticalLayout.setAlignment(Qt.AlignTop)
        self.ui.verticalLayout_2.setAlignment(Qt.AlignTop)

    def gotThumbnail(self):
        try:
            url = self.recipe.picture.url
        except AttributeError:
            return

        if not empty(url):
            data = requests.get(url).content
            img = QImage.fromData(data)
            self.ui.imageLabel.setPixmap(QPixmap.fromImage(img).scaledToWidth(250, Qt.SmoothTransformation))

    @Slot()
    def export(self):
        fileDial = QFileDialog(self, u'Export "%s" recipe' %
                               self.recipe.title, u'%s.kreml' % self.recipe.id, 'Krecipe file (*.kreml);;all files (*)')
        fileDial.setAcceptMode(QFileDialog.AcceptSave)
        fileDial.setLabelText(QFileDialog.Accept, 'Export recipe')
        fileDial.setLabelText(QFileDialog.FileName, 'Recipe file name')
        ok = (fileDial.exec_() == 1)
        if not ok:
            return
        result = fileDial.selectedFiles()
        if len(result) > 0:
            dest = result[0]
            if not dest.endswith('.kreml'):
                dest += '.kreml'
            data = recipe_to_krecipes_xml(self.recipe, author=self.backend.name)
            try:
                with codecs.open(dest, 'w', 'utf-8') as f:
                    f.write(data)
            except IOError as e:
                print(u'Unable to write Krecipe file in "%s": %s' % (dest, e), file=self.stderr)
                return 1
            return
