property_hire/app/models/property.rb

class Property
  include Mongoid::Document
  include Mongoid::Timestamps
  include OrbitTag::Taggable
  include OrbitCategory::Categorizable
  include Slug

  field :title, as: :slug_title, :localize =>  true
  field :property_usage, :localize => true
  field :note, :localize => true
  field :property_number
  field :can_be_hired, type: Boolean, default: true
  field :purchase_date, type: DateTime
  field :owners, type: Array, :default => []
  field :other_owner
  field :owner_email
  field :owner_phone
  field :price
  field :other_location
 
  mount_uploader :image, ImageUploader 

  # unavailibility fields

  field :set_unavailibility, type: Boolean, default: false
  field :start_time
  field :end_time
  field :weekdays, type: Array, default: []
  field :start_date, type: DateTime
  field :end_date, type: DateTime
  field :description, :localize => true
  field :unavailibility_note, :localize => true 

  belongs_to :property_location
  has_many :p_hires
  has_many :hire_email_sets, :autosave => true, :dependent => :destroy, :inverse_of => :property
  accepts_nested_attributes_for :hire_email_sets, :allow_destroy => true
  WEEKDAYS = [
    "Sunday",
    "Monday",
    "Tuesday",
    "Wednesday",
    "Thursday",
    "Friday",
    "Saturday"
  ]

  def get_location_name
    return self.property_location.nil? ? self.other_location : self.property_location.title
  end

  def owner_profiles
    MemberProfile.find(self.owners) rescue []
  end

  def is_available_for_hire?(stime, etime)
    return true if self.set_unavailibility == false
    return true if self.weekdays.empty?
    return true if !self.start_date.nil? && (self.start_date > stime && self.start_date > etime)
    return true if !self.end_date.nil? && self.end_date < stime
    startt = self.start_date.nil? ? self.created_at : self.start_date
    endt = self.end_date.nil? && !startt.nil? ? (startt + 5.years) : self.end_date
    weekdays = self.weekdays.collect{|w| w.to_i}
    if !startt.nil?
      common_dates = (startt..endt) & (stime..etime)
      return true if common_dates.nil?
      time_weekdays = []
      Property.time_iterate(common_dates.min, common_dates.max, 1.day) do |t|
        time_weekdays << t.wday
      end
      time_weekdays.uniq!
      weekdays = weekdays & time_weekdays
      return true if weekdays.blank?
      startt = DateTime.parse(stime.strftime("%Y-%m-%d " + self.start_time + Time.zone.to_s))
      endt = DateTime.parse(etime.strftime("%Y-%m-%d " + self.end_time + Time.zone.to_s))
      common_dates = (startt..endt) & (stime..etime)
      if common_dates.nil?
        return true 
      else
        return false
      end
    end
  end

  def is_already_hired?(stime, etime, interval, recurring_end_date)
    phires = self.p_hires
    bookings_count = phires.where(:start_time.lte => stime,:end_time.gte => stime,:recurring => false).count
                      + phires.where(:start_time.gte => stime,:end_time.lte => etime,:recurring => false).count
                        +phires.where(:start_time.lte => etime,:end_time.gte => etime,:recurring => false).count
    available = true
    if bookings_count != 0
      available = false
    end
    if available
      bookings = phires.where(:recurring_end_date.gte => stime, :recurring => true) + phires.where(:recurring => false)
      case interval
      when 'week'
        d_step = 1.week
      when 'month'
        d_step = 1.month
      else
        d_step = 0
      end
      bookings.each do |booking|
        stime_tp = stime
        etime_tp = etime
        b_interval = booking.recurring_interval
        if b_interval == 'month'
          b_sdata = booking.start_time.day*10000 + booking.start_time.hour*100 + booking.start_time.minute
          b_edata = booking.end_time.day*10000 + booking.end_time.hour*100 + booking.end_time.minute
        elsif b_interval == 'week'
          b_sdata = booking.start_time.wday*10000 + booking.start_time.hour*100 + booking.start_time.minute
          b_edata = booking.end_time.wday*10000 + booking.end_time.hour*100 + booking.end_time.minute
        else
          b_sdata = booking.start_time
          b_edata = booking.end_time
        end
        while true
          if b_interval == 'month'
            sdata = stime_tp.day*10000 + stime_tp.hour*100 + stime_tp.minute
            edata = etime_tp.day*10000 + etime_tp.hour*100 + etime_tp.minute
          elsif b_interval == 'week'
            sdata = stime_tp.wday*10000 + stime_tp.hour*100 + stime_tp.minute
            edata = etime_tp.wday*10000 + etime_tp.hour*100 + etime_tp.minute
          else
            sdata = stime_tp
            edata = etime_tp
          end
          if (sdata <= b_sdata && edata >= b_sdata) || (sdata >= b_sdata && edata <= b_edata) || (sdata <= b_edata && edata >= b_edata)
            if etime_tp > booking.start_time
              available = false
            end
          end
          stime_tp = stime_tp + d_step
          etime_tp = etime_tp + d_step
          break if recurring_end_date.nil? || recurring_end_date < stime_tp
        end
        break if available == false
      end
    end
    return available
  end

  def self.time_iterate(start_time, end_time, step, &block)
    begin
      yield(start_time, end_time)
    end while (start_time += step) <= end_time
  end

end