# -*- coding: utf-8 -*-
# == Schema Information
#
# Table name: studien
#
#  id         :integer          not null, primary key
#  zahl       :string(255)
#  name       :string(255)
#  shortdesc  :text
#  desc       :text
#  typ        :string(255)
#  created_at :datetime         not null
#  updated_at :datetime         not null
#  abkuerzung :string(255)
#

# == Schema Information
#
# Table name: studien
#
#  id         :integer          not null, primary key
#  zahl       :string(255)
#  name       :string(255)
#  shortdesc  :text
#  desc       :text
#  typ        :string(255)
#  created_at :datetime         not null
#  updated_at :datetime         not null
class Studium < ActiveRecord::Base
  attr_accessible :desc, :name,:abkuerzung, :typ, :zahl, :semester, :picture, :picture_cache, :qualifikation,:struktur, :jobmoeglichkeiten, :lvas_attributes
  has_many :modulgruppen, inverse_of: :studium, :class_name => "Modulgruppe", :dependent => :destroy
    scope :search, ->(query) {where("name like ? or studien.desc like ?", "%#{query}%", "%#{query}%")} 
  has_many :moduls, :through=>:modulgruppen
  has_many :lvas, :through=>:moduls
  has_many :semester, :dependent => :destroy
  
validates :abkuerzung, :length=>{:maximum=>5}, :format=>{:with=>/^[a-zA-z]{0,5}$/}
  validates :typ, :inclusion => {:in => ["Bachelor","Master"] }
  validates :name, :uniqueness => true, :presence=>true
  validates :zahl, :presence=>true, :format=>{:with=>/^[0-9A-Z]{4,10}$/}, :uniqueness => true 

  mount_uploader :picture, PictureUploader

  accepts_nested_attributes_for :lvas #, :allow_destroy=>true # , :reject_if=> lambda{|a| a[:name].blank?}

  translates :desc,:shortdesc, :qualifikation,:struktur, :jobmoeglichkeiten, :versioning =>true,:fallbacks_for_empty_translations => true

  def title_context
    return self.abkuerzung.to_s.strip.empty? ? self.name : self.abkuerzung
  end
  has_many :nlinks, as: :link
  
  def title
    self.name
  end
  def batch_add_semester
    # Semester automatisch zu Studien hinzufügen
    if self.typ == "Bachelor"
      length = 6
    else
      length = 4
    end
    for i in 1..length
      semester =Semester.new()
      #semester.name = i.to_s + '. ' + self.name
      semester.nummer = i
      semester.ssws = ((i % 2 == 0) ? "SS" : "WS")
      semester.save
      self.semester << semester
    end
    semester = Semester.new()
    #semester.name = 'Ohne Zuordnung (' + self.name + ')'
    semester.nummer = 0
    semester.ssws = "WS"
    semester.save
    self.semester << semester
  end

   def desc_first_words
    md = /<p>(?<text>[\w\s,\.!\?]*)/.match self.desc
     unless md.nil?
       md[:text].split(" ")[0..100].join(" ")+ " ..." 
     else
       ""
     end
  end

end