#!/usr/bin/python
# -*- coding: utf-8 -*-

import logging
import urllib
log = logging.getLogger(__name__)

class GroupList(object):

  def __init__(self):
    self.groups={}
    self.lastChange=False   

  def load(self,data):
    if 'lastChange' in data:
      self.lastChange=data['lastChange']
    if 'groups' in data:
      for g in data['groups']:
        self.groups[g]=Group()
        self.groups[g].load(data['groups'][g])

  def export(self):
    groups={}
    for uuid in self.groups:
      groups[uuid]=self.groups[uuid].export()

    return {
      'lastChange': self.lastChange,
      'groups': groups
    }

  def toJSON(self,pretty=False):
    if pretty:
      return json.dumps(self.export(),indent=4, separators=(',', ': '))
    else:
      return json.dumps(self.export())

  def sync(self,groups):
    ret=GroupList()
    if groups.lastChange<self.lastChange:
      ret.lastChange=self.lastChange
    else:
      ret.lastChange=groups.lastChange
    for uuid in groups.groups:
      if uuid in self.groups:
        ret.groups[uuid]=self.groups[uuid].sync(groups.groups[uuid])
      else:
        ret.groups[uuid]=groups.groups[uuid]
    for uuid in self.groups:
      if uuid not in ret.groups:
        ret.groups[uuid]=self.groups[uuid]
    return ret


class Group(object):

  def __init__(self):
    self.uuid=None
    self.name=None
    self.contributors={}
    self.contributions={}
    self.deletedContributions={}

  def load(self,data):
    try:
      self.uuid=data['uuid']
      self.name=data['name']
      for email in data['contributors']:
        self.contributors[email]=Contributor()
        self.contributors[email].load(data['contributors'][email])
      for uuid in data['contributions']:
        self.contributions[uuid]=Contribution()
        self.contributions[uuid].load(data['contributions'][uuid])
      if 'deletedContributions' in data:
        for uuid in data['deletedContributions']:
          self.deletedContributions[uuid]=Contribution()
          self.deletedContributions[uuid].load(data['deletedContributions'][uuid])
      return True
    except Exception,e:
      logging.error('Error loading JSON data : %s',e)
      return False

  def export(self):
    contributors={}
    for email in self.contributors:
      contributors[email]=self.contributors[email].export()

    contributions={}
    for uuid in self.contributions:
      contributions[uuid]=self.contributions[uuid].export()

    deletedContributions={}
    for uuid in self.deletedContributions:
      deletedContributions[uuid]=self.deletedContributions[uuid].export()

    return {
      'uuid': self.uuid,
      'name': self.name,
      'contributors': contributors,
      'contributions': contributions,
      'deletedContributions': deletedContributions
    }

  def sync(self, group):
    ret=Group()
    ret.uuid=self.uuid

    # FIXME : Add lastChange on group to permit name choice between to object
    ret.name=group.name

    ## Contributors
    ret.contributors=self.contributors
    for email in group.contributors:
      if email not in ret.contributors:
        ret.contributors[email]=group.contributors[email]

    ## Deleted Contributions
    for uuid in self.deletedContributions:
      if uuid in group.deletedContributions:
        ret.deletedContributions[uuid]=self.deletedContributions[uuid].sync(group.deletedContributions[uuid])
      else:
        ret.deletedContributions[uuid]=self.deletedContributions[uuid]
    for uuid in group.deletedContributions:
      if uuid not in ret.deletedContributions:
        ret.deletedContributions[uuid]=group.deletedContributions[uuid]

    ## Contributions
    for uuid in self.contributions:
      if uuid in group.contributions:
        ret.contributions[uuid]=self.contributions[uuid].sync(group.contributions[uuid])
      elif uuid not in ret.deletedContributions:
        ret.contributions[uuid]=self.contributions[uuid]
      elif self.contributions[uuid].lastChange>ret.deletedContributions[uuid].lastChange:
        ret.contributions[uuid]=self.contributions[uuid]
    for uuid in group.contributions:
      if uuid not in ret.contributions:
        if uuid not in ret.deletedContributions:
          ret.contributions[uuid]=group.contributions[uuid]
        elif group.contributions[uuid].lastChange>ret.deletedContributions[uuid].lastChange:
          ret.contributions[uuid]=group.contributions[uuid]

    return ret


class Contribution(object):

  def __init__(self):
    self.uuid=None
    self.contributor=None
    self.title=None
    self.cost=None
    self.date=None
    self.lastChange=None

  def load(self,data):
    self.uuid=data['uuid']
    self.contributor=data['contributor']
    self.title=data['title']
    self.cost=data['cost']
    self.date=data['date']
    self.lastChange=data['lastChange']

  def export(self):
    return {
      'uuid': self.uuid,
      'contributor': self.contributor,
      'cost': self.cost,
      'title': self.title,
      'date': self.date,
      'lastChange': self.lastChange
    }

  def sync(self, c):
    if c.lastChange>self.lastChange:
      return c
    else:
      return self

class Contributor(object):

  def __init__(self):
    self.name=None
    self.email=None

  def load(self,data):
    self.name=data['name']
    self.email=data['email']

  def export(self):
    return {
      'name': self.name,
      'email': self.email
    }


if __name__ == '__main__':
  import testdata
  import json

  data=json.loads(testdata.group_as_json)
  data2=json.loads(testdata.group_as_json2)

  gl=GroupList()
  gl.load(data2)

  print gl.toJSON(True)

  print 'Try sync groups'
  gl2=GroupList()
  gl2.load(data)
  gl_sync=gl.sync(gl2)
  print 'Sync group : %s' % gl_sync
  print gl_sync.toJSON(True)