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

import os

import codecs

from docutils.core import publish_parts

from flask import Flask, Response

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

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_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 author_info(name, filename):

    content = get_content(filename)

    html = render_template("/author_info.html", act="author", title=name, 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"

    saying, author = get_saying()

    return render_template("/index.html",

                           saying=saying,

                           author=author,

                           eskp_info=_(u'About ESKP'),

                           )

@app.route('/en')

def en():

    saying, author = get_saying()

    global LANGUAGE_SELECTED

    LANGUAGE_SELECTED = "en"

    return render_template("/index.html",

                           saying=saying,

                           author=author,

                           eskp_info=_(u'About ESKP'),

                           )

@app.route("/eskp")

def eskp():

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

    content = get_content(filename)

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

@app.route("/ozoneloss")

def ozoneloss():

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

    content = get_content(filename)

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

    author = author_info(_(u"Ozoneloss"), filename)

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

                           author=author, contact = u"Dr. Jens-Uwe Grooß", publications=u"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)

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

    author = author_info(_(u"IEK-7"), filename)

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

                           author=author, contact = u"Sandra Stein")

@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)