# coding: utf-8
# This class represents a single meeting of a group or the whole Fachschaft.
# 
class Meeting < ActiveRecord::Base

  attr_accessible :desc, :intern, :name, :parent_id, :parent_type, :calentry,:calentry_attributes, :meetingtyp_id
  
  # Meeting can belong to different kind of parents e.g. topics
  belongs_to :parent, :polymorphic=>true, touch: true
  # Each meeting should have a type, for more information see MeetingTyp
  belongs_to :meetingtyp
  # Belongs to a news article, that is usually the Announcement of that meeting
  belongs_to :neuigkeit, touch: true
  # has one protocol of type Document, which is of typ=10=protocol
#has_one :test_ol,  :class_name=>'Document',   -> { where(:typ => 10) }
  
  has_one :protocol, -> { where(:typ => 10) }, :class_name=>'Document', :as=>:parent
  
  # has one agenda of type Document
  has_one :agenda, -> { where :typ=>11 } , :as=>:parent,  :class_name=>'Document'
  # has one calentry which contains the date and time of this meeting
  has_one :calentry, as: :object, :dependent=> :destroy
  # has one calendar through the meetingtyp, thus each meeting is put into a calendar
  has_one :calendar, :through=>:meetingtyp
  # has one rubrik, thus it is associated to a rubrik
  has_one :rubrik, :through=>:meetingtyp

  # scope upcomming only contains meetings in the future and 1 hour into the past 
  scope :upcomming, -> {includes(:calentry).where("calentries.start>?",1.hour.ago)}
  default_scope -> { includes(:calentry).order("calentries.start").reverse_order}
  accepts_nested_attributes_for :calentry

  # Each meeting is required to have a parent otherwise it will not be shown anywhere on the website
  validates :parent, :presence=>true
  # Each meeting needs a calendar entry 
  validates :calentry, :presence=>true

  
  # before each validation fix the calendar entry such that it is always 
  before_validation :fix_calentry
  
  # title is an alias for text
  def title
    self.text
  end

  # Text is a text representation of the meeting
  def text
    t = self.meetingtyp.try(:name) || self.parent.try(:title) || ""
    t = t + ", " unless t.empty?
    t= t+ self.name.to_s
    t = t +" "+ I18n.t("date.am")+" "+ self.calentry.text unless self.calentry.nil?
    t
  end
  
  # Creante an anouncement with an author
  # @param user is the author 
  def create_announcement(user)
    if self.neuigkeit.nil?
    n = Neuigkeit.new
    
    n.title=self.text
    n.text ="Agenda im Anhang"
    n.rubrik = self.meetingtyp.rubrik
    n.author=user
      n.datum=Date.today
    n.save    
    self.neuigkeit= n
    end
  end
  
  # Update the title of the announcement to the text of this meeting
  # @returns [true] if save was successful
  def update_announcement
      n=self.neuigkeit
      n.title=self.text
      n.save
    
  end

  # fixing the calendar entry and the calendar
  # most importantly the calendar of the calentry 
  def fix_calentry
    self.calentry.object=self unless self.calentry.nil?
    self.calentry.calendar = self.meetingtyp.rubrik.calendar 
  end
  
  def public? 
    ! (self.intern)
  end

  # Create a Document that is a protocol for the meeting
  def create_protocol
   if self.protocol.nil? # if no protocol exists
     d=Document.new
     d.typ=10
     d.name="Protokoll"
     d.save
     self.protocol=d
   end
   # what happens if a protocol already exists?
  end
  
  # Create a calender entry for this meeting
  def create_calentry
   if  self.calentry.nil?
     ce =Calentry.new
     ce.typ=2
     self.calentry=ce
   end
  end
  def create_agenda
    if self.agenda.nil?
      d=Document.new
      d.typ=11
      d.name="Agenda"
      d.save
      self.agenda=d
    end
  end
  def self.new_with_date_and_typ(parent,start, typ)
    m= Meeting.new
    m.parent=parent
    m.calentry=Calentry.new
    m.calentry.typ=2
    m.calentry.start=start
    m.calentry.dauer=4
    m.meetingtyp=typ
    m
  end
  def self.new_divid_for(parent)
    "meeting_new_parent_" + parent.class.to_s + "_" + parent.id.to_s 
  end
  def divid
    "meeting_"+self.id.to_s
  end

  def update_time_from_protocol
    st= /Beginn[\s:]*([^<>]*)/.match(self.protocol.text)[1].to_s
    st= /Anfang[\s:]*([^<>]*)/.match(self.protocol.text)[1].to_s if st.nil? || st.empty?
    self.calentry.start=(self.calentry.start.to_date.to_s + " " +st).to_datetime unless st.nil? || st.empty?
    st= /Ende[\s:]*([^<>]*)/.match(self.protocol.text).try(:second).try(:to_s )
   self.calentry.ende=(self.calentry.ende.to_date.to_s + " " +st).to_datetime unless st.nil? || st.empty?
  end
  def agenda_text
    return self.agenda.try(:text) || ""
  end
  def protocol_text
    return self.protocol.try(:text) || ""
  end

  searchable do
    text :text
    text :name, :boost=>4.0
    
    text :meetingtyp do
      meetingtyp.name
    end
    text :protocol do
   self.protocol_text
    end
  
    text :agenda do
      self.agenda_text
    end
  end
  
  
end