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

 import os

 import codecs

 import vobject

 import StringIO

 import qrcode

 from docutils.core import publish_parts

 from flask import Flask

 from flask import render_template

 from flask import request

 from flask.ext.babel import gettext as _

 from flask.ext.babel import Babel

 from config import LANGUAGES

 import base64

 LANGUAGE_SELECTED = "de"

 #ToDo after engelish is implemented set LANGUAGE_SELECTED = None

 # We need the path of this file to find templates to translate

 ESKP_PATH = os.path.dirname(os.path.abspath(__file__))

 app = Flask(__name__)

 babel = Babel(app)

 app.config['BABEL_DEFAULT_LOCALE'] = 'de'

 def get_vcard(filename):

     with codecs.open(filename, 'r', 'utf-8') as f:

             vcard = f.read()

             f.close()

     return vobject.readOne(vcard)

 def get_content(filename, overrides=None):

     content = u""

     filename = os.path.join(ESKP_PATH, filename)

     if os.path.isfile(filename):

         with codecs.open(filename, 'r', 'utf-8') as f:

             rst_data = f.read()

         f.close()

         content = publish_parts(rst_data, writer_name='html', settings_overrides=overrides)['html_body']

     return content

 def get_topmenue():

     menue = [

              ('/ozoneloss', _(u'Ozoneloss')),

              ('/eskp', _(u'ESKP')),

              ('/iek-7', _(u'IEK-7')),

             ]

     return menue

 app.jinja_env.globals.update(get_topmenue=get_topmenue)

 def get_o3lossclams_dates():

     menue = [('/ozoneloss/clams/2012', _(u'2012')),

              ('/ozoneloss/clams/2011', _(u'2011')),

              ('/ozoneloss/clams/2010', _(u'2010')),

              ]

     return menue

 def get_vpsc_dates():

     menue = [('/ozoneloss/vpsc/2014', _(u'2014')),

              ('/ozoneloss/vpsc/2013', _(u'2013')),

              ('/ozoneloss/vpsc/2012', _(u'2012')),

              ('/ozoneloss/vpsc/2011', _(u'2011')),

              ('/ozoneloss/vpsc/2010', _(u'2010')),

              ]

     return menue

 app.jinja_env.globals.update(get_o3lossclams_dates=get_o3lossclams_dates)

 app.jinja_env.globals.update(get_vpsc_dates=get_vpsc_dates)

 def modal_info(template, act, title, filename):

     content = get_content(filename)

     html = render_template(template, act=act, title=title, content=content, exit=_(u"Close"))

     return html

 @babel.localeselector

 def get_locale():

     """ToDo: if translation is completed, switch to en """

     return LANGUAGE_SELECTED or request.accept_languages.best_match(LANGUAGES.keys()) or 'de'

 @app.route("/")

 @app.route("/index")

 def index():

     return render_template("/index.html",

                            eskp_info=_(u'About ESKP'),

                            )

 @app.route('/ozoneloss/clams/<year>')

 def ozoneloss_clams_year(year):

     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_clams.rst")

     content = get_content(filename)

     return render_template("/ozoneloss_clams.html", act="ozoneloss/clams/%s" % year, content=content, year=year)

 @app.route('/ozoneloss/vpsc/<year>')

 def ozoneloss_vspc_year(year):

     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_vpsc.rst")

     content = get_content(filename)

     filename = os.path.join("templates", get_locale(), "rst", "explanation_vpsc.rst")

     explanation = get_content(filename)

     return render_template("/ozoneloss_vpsc.html", act="ozoneloss/vpsc/%s" % year, content=content,

                            content_explanation=explanation, year=year)

 @app.route('/de')

 def de():

     global LANGUAGE_SELECTED

     LANGUAGE_SELECTED = "de"

     return render_template("/index.html",

                            eskp_info=_(u'About ESKP'),

                            )

 @app.route('/en')

 def en():

     global LANGUAGE_SELECTED

     LANGUAGE_SELECTED = "en"

     return render_template("/index.html",

                            eskp_info=_(u'About ESKP'),

                            )

 @app.route("/eskp")

 def eskp():

     filename = os.path.join("templates", get_locale(), "rst", "eskp.rst")

     content = get_content(filename)

     filename = os.path.join("templates", get_locale(), "rst", "eskp_title.rst")

     headline = get_content(filename)

     return render_template("/eskp.html", act="eskp", content=content, headline=headline)

 def qr_image_data(card):

     buf= StringIO.StringIO()

     qr = qrcode.QRCode(

         version=1,

         error_correction=qrcode.constants.ERROR_CORRECT_L,

         box_size=2,

         border=2,

         )

     qr.add_data(card.serialize())

     qr.make(fit=True)

     img = qr.make_image()

     img.save(buf)

     image = buf.getvalue()

     return base64.b64encode(image)

 @app.route("/ozoneloss")

 def ozoneloss():

     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss.rst")

     content = get_content(filename)

     vcard_file = os.path.join("vcards", "jug.vcf")

     author = u""

     try:

         card = get_vcard(vcard_file)

     except IOError:

         card = None

     if card is not None:

         qr_image = qr_image_data(card)

         author = render_template("/author_info.html", act="author", title=_(u"Ozoneloss"),

                                   card=card, image=qr_image, contact=_(u"Contact"), exit=_(u"Close"))

     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_publications.rst")

     publications = modal_info("/publications_info.html", "publications", _(u"Ozoneloss"), filename)

     return render_template("/ozoneloss.html", act="ozoneloss", content=content,

                            author=author,card=card, publications=publications )

 @app.route("/ozoneloss/clams")

 def ozoneloss_clams():

     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_clams.rst")

     content = get_content(filename)

     return render_template("/ozoneloss_clams.html", act="ozoneloss/clams", content=content)

 @app.route("/ozoneloss/vpsc")

 def ozoneloss_vspc():

     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_vpsc.rst")

     content = get_content(filename)

     return render_template("/ozoneloss_vpsc.html", act="ozoneloss/vpsc", content=content)

 @app.route("/iek-7")

 def institute():

     filename = os.path.join("templates", get_locale(), "rst", "iek-7.rst")

     content = get_content(filename)

     vcard_file = os.path.join("vcards", "sas.vcf")

     author = u""

     try:

         card = get_vcard(vcard_file)

     except IOError:

         card = None

     if card is not None:

         qr_image = qr_image_data(card)

         author = render_template("/author_info.html", act="author", title=_(u"IEK-7"),

                                   card=card, image=qr_image, contact=_(u"Contact"), exit=_(u"Close"))

     return render_template("/iek-7.html", act="iek-7", content=content,

                            author=author, card=card, contact = u"IEK-7")

 @app.route("/imprint")

 def imprint():

     filename = os.path.join("templates", get_locale(), "rst", "imprint.rst")

     content = get_content(filename)

     return render_template("/content.html", act="imprint", content=content)

 @app.errorhandler(404)

 def page_not_found(e):

     msg = _(u"Url: %(url)s not found", url=request.url)

     info = _(u"This information is not available!")

     return render_template("404.html", msg=msg, info=info)

 if __name__ == "__main__":

     app.run(host='localhost', port=5014, debug=True)