# -*- coding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2013-Today OpenERP SA (<http://www.openerp.com>).
#
#    This program 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.
#
#    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

import openerp
from openerp.addons.web import http
from openerp.addons.web.http import request
from openerp.addons.website.controllers.main import Website as controllers
import datetime

import re
import werkzeug.utils

controllers = controllers()
import pytz
from pytz import timezone

class website_event(http.Controller):
    @http.route(['''/event/<model("event.event"):event>/track/<model("event.track", "[('event_id','=',event[0])]"):track>'''], type='http', auth="public", website=True, multilang=True)
    def event_track_view(self, event, track, **post):
        track_obj = request.registry.get('event.track')
        track = track_obj.browse(request.cr, openerp.SUPERUSER_ID, track.id, context=request.context)
        values = { 'track': track, 'event': track.event_id, 'main_object': track }
        return request.website.render("website_event_track.track_view", values)

    def _prepare_calendar(self, event, event_track_ids):
        local_tz = pytz.timezone(event.timezone_of_event or 'UTC')
        locations = {}                  # { location: [track, start_date, end_date, rowspan]}
        dates = []                      # [ (date, {}) ]
        for track in event_track_ids:
            locations.setdefault(track.location_id or False, [])

        forcetr = True
        for track in event_track_ids:
            start_date = (datetime.datetime.strptime(track.date, '%Y-%m-%d %H:%M:%S')).replace(tzinfo=pytz.utc).astimezone(local_tz)
            end_date = start_date + datetime.timedelta(hours = (track.duration or 30))
            location = track.location_id or False
            locations.setdefault(location, [])

            # New TR, align all events
            if forcetr or (start_date>dates[-1][0]) or not location:
                dates.append((start_date, {}, bool(location)))
                for loc in locations.keys():
                    if locations[loc] and (locations[loc][-1][2] > start_date):
                        locations[loc][-1][3] += 1
                    elif not locations[loc] or locations[loc][-1][2] < start_date:
                        locations[loc].append([False, locations[loc] and locations[loc][-1][2] or dates[0][0], start_date, 1])
                        dates[-1][1][loc] = locations[loc][-1]
                forcetr = not bool(location)

            # Add event
            if locations[location] and locations[location][-1][1] > start_date:
                locations[location][-1][3] -= 1
            locations[location].append([track, start_date, end_date, 1])
            dates[-1][1][location] = locations[location][-1]
        return {
            'locations': locations,
            'dates': dates
        }


    # TODO: not implemented
    @http.route(['''/event/<model("event.event", "[('show_tracks','=',1)]"):event>/agenda'''], type='http', auth="public", website=True, multilang=True)
    def event_agenda(self, event, tag=None, **post):
        comp = lambda x: (x.date, bool(x.location_id))
        event.track_ids.sort(lambda x,y: cmp(comp(x), comp(y)))

        days = {}
        days_nbr = {}
        for track in event.track_ids:
            if not track.date: continue
            days.setdefault(track.date[:10], [])
            days[track.date[:10]].append(track)

        for d in days:
            days_nbr[d] = len(days[d])
            days[d] = self._prepare_calendar(event, days[d])

        return request.website.render("website_event_track.agenda", {
            'event': event,
            'days': days,
            'days_nbr': days_nbr,
            'tag': tag
        })

    @http.route([
        '''/event/<model("event.event", "[('show_tracks','=',1)]"):event>/track''',
        '''/event/<model("event.event", "[('show_tracks','=',1)]"):event>/track/tag/<model("event.track.tag"):tag>'''
        ], type='http', auth="public", website=True, multilang=True)
    def event_tracks(self, event, tag=None, **post):
        searches = {}
        if tag:
            searches.update(tag=tag.id)
            track_obj = request.registry.get('event.track')
            track_ids = track_obj.search(request.cr, request.uid,
                [("id", "in", [track.id for track in event.track_ids]), ("tag_ids", "=", tag.id)], context=request.context)
            tracks = track_obj.browse(request.cr, request.uid, track_ids, context=request.context)
        else:
            tracks = event.track_ids

        def html2text(html):
            return re.sub(r'<[^>]+>', "", html)

        values = {
            'event': event,
            'main_object': event,
            'tracks': tracks,
            'tags': event.tracks_tag_ids,
            'searches': searches,
            'html2text': html2text
        }
        return request.website.render("website_event_track.tracks", values)

    @http.route(['''/event/<model("event.event", "[('show_track_proposal','=',1)]"):event>/track_proposal'''], type='http', auth="public", website=True, multilang=True)
    def event_track_proposal(self, event, **post):
        values = { 'event': event }
        return request.website.render("website_event_track.event_track_proposal", values)

    @http.route(['/event/<model("event.event"):event>/track_proposal/post'], type='http', auth="public", methods=['POST'], website=True, multilang=True)
    def event_track_proposal_post(self, event, **post):
        cr, uid, context = request.cr, request.uid, request.context

        tobj = request.registry['event.track']

        tags = []
        for tag in event.allowed_track_tag_ids:
            if post.get('tag_'+str(tag.id)):
                tags.append(tag.id)

        e = werkzeug.utils.escape
        track_description = '''<section data-snippet-id="text-block">
    <div class="container">
        <div class="row">
            <div class="col-md-12 text-center">
                <h2>%s</h2>
            </div>
            <div class="col-md-12">
                <p>%s</p>
            </div>
            <div class="col-md-12">
                <h3>About The Author</h3>
                <p>%s</p>
            </div>
        </div>
    </div>
</section>''' % (e(post['track_name']), 
            e(post['description']), e(post['biography']))

        track_id = tobj.create(cr, openerp.SUPERUSER_ID, {
            'name': post['track_name'],
            'event_id': event.id,
            'tag_ids': [(6, 0, tags)],
            'user_id': False,
            'description': track_description
        }, context=context)

        tobj.message_post(cr, openerp.SUPERUSER_ID, [track_id], body="""Proposed By: %s<br/>
          Mail: <a href="mailto:%s">%s</a><br/>
          Phone: %s""" % (e(post['partner_name']), e(post['email_from']), 
            e(post['email_from']), e(post['phone'])), context=context)

        track = tobj.browse(cr, uid, track_id, context=context)
        values = {'track': track, 'event':event}
        return request.website.render("website_event_track.event_track_proposal_success", values)