# -*- coding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
#
#    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/>.
#
##############################################################################

from osv import osv, fields
from tools.translate import _
import pooler
import tools
import time
import base64
from document import nodes
import StringIO

class node_database(nodes.node_database):
    def _child_get(self, cr, name=False, parent_id=False, domain=None):
        dirobj = self.context._dirobj
        uid = self.context.uid
        ctx = self.context.context.copy()
        ctx.update(self.dctx)
        if not domain:
            domain = []
        domain2 = domain + [('calendar_collection','=', False)]
        res = super(node_database, self)._child_get(cr, name=name, parent_id=parent_id, domain=domain2)
        where = [('parent_id','=',parent_id)] 
        domain2 = domain + [('calendar_collection','=', True)]                             
        if name:
            where.append(('name','=',name))
        if domain2:
            where += domain2

        where2 = where + [('type', '=', 'directory')]
        ids = dirobj.search(cr, uid, where2, context=ctx)              
        for dirr in dirobj.browse(cr,uid,ids,context=ctx):            
            res.append(node_calendar_collection(dirr.name,self,self.context,dirr))
        return res

class node_calendar_collection(nodes.node_dir):     
    def get_dav_props(self, cr):
        res = {}        
        return res

    def get_dav_eprop(self,cr,ns,prop):        
        return None

    def _child_get(self, cr, name=False, parent_id=False, domain=None):
        dirobj = self.context._dirobj
        uid = self.context.uid
        ctx = self.context.context.copy()
        ctx.update(self.dctx)
        where = [('collection_id','=',self.dir_id)]                              
        if name:
            where.append(('name','=',name))
        if not domain:
            domain = []       
        
        fil_obj = dirobj.pool.get('basic.calendar')        
        ids = fil_obj.search(cr,uid,where,context=ctx)
        res = []
        if ids:
            for fil in fil_obj.browse(cr,uid,ids,context=ctx):
                res.append(node_calendar(fil.name,self,self.context,fil))
        return res

    
    def get_etag(self, cr):
        """ Get a tag, unique per object + modification.

            see. http://tools.ietf.org/html/rfc2616#section-13.3.3 """
        return self._get_ttag(cr) + ':' + self._get_wtag(cr)

    def _get_wtag(self, cr):
        """ Return the modification time as a unique, compact string """
        if self.write_date:
            wtime = time.mktime(time.strptime(self.write_date, '%Y-%m-%d %H:%M:%S'))
        else: wtime = time.time()
        return str(wtime)

    def _get_ttag(self, cr):
        return 'calendar collection-%d' % self.dir_id

class node_calendar(nodes.node_class):
    our_type = 'file'
    def __init__(self,path, parent, context, calendar):
        super(node_calendar,self).__init__(path, parent,context)
        self.calendar_id = calendar.id
        self.mimetype = 'ics'
        self.create_date = calendar.create_date
        self.write_date = calendar.write_date or calendar.create_date
        self.content_length = 0
        self.displayname = calendar.name        
         
    def open(self, cr, mode=False):
        uid = self.context.uid        
        if self.type in ('collection','database'):
            return False            
        fobj = self.context._dirobj.pool.get('basic.calendar').browse(cr, uid, self.calendar_id, context=self.context.context)        
        s = StringIO.StringIO(self.get_data(cr, fobj))        
        s.name = self
        return s           

    def get_dav_props(self, cr):
        res = {}        
        return res

    def get_dav_eprop(self,cr,ns,prop):        
        return None


    def get_data(self, cr, fil_obj = None):        
        uid = self.context.uid
        calendar_obj = self.context._dirobj.pool.get('basic.calendar')
        return calendar_obj.export_cal(cr, uid, [self.calendar_id])        

    def get_data_len(self, cr, fil_obj = None):        
        return self.content_length

    def set_data(self, cr, data, fil_obj = None):
        uid = self.context.uid
        calendar_obj = self.context._dirobj.pool.get('basic.calendar')
        return calendar_obj.import_cal(cr, uid, base64.encodestring(data), self.calendar_id)

    def _get_ttag(self,cr):
        return 'calendar-%d' % self.calendar_id

    

    def get_etag(self, cr):
        """ Get a tag, unique per object + modification.

            see. http://tools.ietf.org/html/rfc2616#section-13.3.3 """
        return self._get_ttag(cr) + ':' + self._get_wtag(cr)

    def _get_wtag(self, cr):
        """ Return the modification time as a unique, compact string """
        if self.write_date:
            wtime = time.mktime(time.strptime(self.write_date, '%Y-%m-%d %H:%M:%S'))
        else: wtime = time.time()
        return str(wtime)   
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