class RulingTimerTask
  include Mongoid::Document
  include Mongoid::Timestamps
  include OrbitTag::Taggable
  field :ticket_no, type: String, default: ""
  field :task_name, type: String, default: ""
  has_many :ruling_timer_sub_tasks, :autosave => true, :dependent => :destroy
  field :user_ids, type: Array, default: [] #負責⼈、協助人
  field :is_finished, type: Boolean, default: false
  field :time_offset, type: String, default: "+8"
  field :privacy, type: Integer, default: 0 #私密等級  0 => 所有團隊成員Open, 1 => 專案成員Project, 2 => 優先, 3 => 任務成員 Task
  field :priority, type: Integer, default: 0 #優先度  0 => 無, 1 => 普通, 2 => 優先, 3 => 緊急
  belongs_to :creator , :class_name=>"User", :foreign_key => :creator_id #建立者 
  belongs_to :owner , :class_name=>"User", :foreign_key => :owner_id #負責⼈
  belongs_to :ruling_timer_project
  field :helper_ids, type: Array, default: [] #協助人
  field :observer_ids, type: Array, default: [] #觀察者
  field :details, type: String, default: ""
  field :progress, type: Integer, default: 0 #進度 0 ~ 100
  field :update_user_id
  has_many :ruling_timer_files, :autosave => true, :dependent => :destroy
  accepts_nested_attributes_for :ruling_timer_files, :allow_destroy => true
  has_many :ruling_timer_comments, :autosave => true, :dependent => :destroy
  accepts_nested_attributes_for :ruling_timer_comments, :allow_destroy => true
  belongs_to :ruling_timer_section
  has_many :ruling_timer_notifies, :autosave => true, :dependent => :destroy
  after_initialize do
    unless self.new_record?
      save_flag = false
      if self.owner.nil? && self.user_ids.present?
        self.owner_id = self.user_ids.first
        save_flag = true
      end
      if self.creator.nil? && self.user_ids.present?
        self.creator_id = self.user_ids.first
        save_flag = true
      end
      if self.ruling_timer_project_id.nil?
        project = RulingTimerProject.where(:creator=>self.creator).first
        if project.nil?
          project = RulingTimerProject.create(:created_at=>self.created_at,:creator=>self.creator,:time_offset=>self.time_offset)
        end
        self.ruling_timer_project = project
        save_flag = true
      end
      self.save if save_flag
    end
  end
  before_create do |record|
    time_now = record.created_at || DateTime.now.utc.new_offset(record.time_offset)
    today_start = DateTime.parse("#{time_now.strftime("%Y/%m/%d")} 00:00:00#{record.time_offset}").utc
    today_end = DateTime.parse("#{(time_now + 1.day).strftime("%Y/%m/%d")} 00:00:00#{record.time_offset}").utc
    today_task_count = record.class.where(:created_at.gte=>today_start,:created_at.lt=>today_end).count
    record.ticket_no = "T"+time_now.strftime("%Y%m%d") + ("0000" + (today_task_count + 1).to_s)[-4..-1]
  end
  before_save do |record|
    unless @already_save
      record.user_ids = [record.owner_id.to_s] + record.helper_ids
      record.user_ids = record.user_ids.select{|id| id.present?}
      if self.ruling_timer_project_id == "private_task"
        time_now = DateTime.now.utc
        project = RulingTimerProject.where(:creator=>self.creator).first
        if project.nil?
          project = RulingTimerProject.create(:created_at=>time_now,:creator=>self.creator,:time_offset=>self.time_offset)
        end
        self.ruling_timer_project = project
      end
    end
  end
  after_save do
    if self.ruling_timer_project_id_change && !@already_save
      if self.ruling_timer_project_id_change[0]
        old_project = RulingTimerProject.find(self.ruling_timer_project_id_change[0]) rescue nil
        if old_project
          old_project.task_count -=  1
          @already_save = true
          old_project.save(:validate=>false)
        end
      end
      new_project = self.ruling_timer_project
      new_project.task_count +=  1
      new_project.all_user_ids += self.get_all_user_ids
      new_project.all_user_ids.uniq
      @already_save = true
      new_project.save(:validate=>false)
    end
    if self.ruling_timer_section_id_change && !@already_save
      need_create_notify = true
      if self.ruling_timer_section_id_change[0]
        if self.ruling_timer_notifies.where(:type=>2,:data=>self.ruling_timer_section_id_change.reverse,:updated_at.lte=>DateTime.now - 1.hour).destroy != 0
          need_create_notify = false
        end
        old_section = RulingTimerSection.find(self.ruling_timer_section_id_change[0]) rescue nil
        if old_section
          old_section.task_count -=  1 if old_section.task_count > 0
          @already_save = true
          old_section.save(:validate=>false)
        end
      end
      new_section = self.ruling_timer_section
      new_section.task_count +=  1
      @already_save = true
      new_section.save(:validate=>false)
      if need_create_notify
        all_user_ids = self.get_all_user_ids rescue []
        ruling_timer_temps = RulingTimerTemp.where(:user_id.in=>all_user_ids).to_a
        ruling_timer_temps.each do |temp|
          notify = self.ruling_timer_notifies.new(:type=>2,:user=>temp.user,:data=>self.ruling_timer_section_id_change)
          notify.is_hidden = false
          notify.ruling_timer_task = self.ruling_timer_task
          notify.update_user_id = self.uploader_id
          notify.content = self.content
          notify.save
        end
      end
    end
  end
  after_destroy do
    @already_save = true
    if self.ruling_timer_project
      project = self.ruling_timer_project
      project.task_count -=  1
      project.save(:validate=>false)
    end
  end
  def get_all_user_ids
    all_user_ids = []
    all_user_ids << self.owner_id.to_s if self.owner_id.present?
    all_user_ids += (self.helper_ids + self.observer_ids)
    all_user_ids.uniq
  end
  def helpers
    User.where(:id.in=>self.helper_ids)
  end
  def observers
    User.where(:id.in=>self.observer_ids)
  end
  def convert_datetime(time)
    if time.class == Time
      return time.to_datetime
    elsif time.class == DateTime
      return time
    elsif time.class == String
      return DateTime.parse(time)
    else
      return Time.at(time).to_datetime #time is seconds
    end
  end
  def create_time
    convert_datetime(self.created_at.utc).new_offset(self.time_offset).strftime("%Y/%m/%d %H:%m")
  end
  def users
    User.where(:id.in=>self.user_ids)
  end
  def get_priority
    I18n.t("ruling_timer.priority_opts.#{self.priority}")
  end
  after_save do |record|
    if record.user_ids_changed?
      delete_user_ids = record.user_ids_was.to_a - record.user_ids.to_a
      add_user_ids = record.user_ids.to_a - record.user_ids_was.to_a
      delete_user_ids.each do |user|
        self.ruling_timer_sub_tasks.where(:user=>user).destroy
      end
      add_user_ids.each do |user|
        self.ruling_timer_sub_tasks.create(:user=>user,:task_name=>task_name)
      end
    end
    if record.task_name_changed?
      self.ruling_timer_sub_tasks.each do |sub_task|
        sub_task.update(:task_name=>task_name)
      end
    end
  end
end