class Admin::TicketsController < OrbitAdminController

  include TicketsHelper

  before_action :set_smart_tags

	def index
		mp = current_user.member_profile rescue nil
    @tickets = {}
    @urgent_tickets = {}
		if !mp.nil?
			authorizations = Authorization.where(:role_id.in => mp.roles.collect{|mm| mm.id})
			if authorizations.count == 0
        @categories = ModuleApp.find_by_key("ticket").categories rescue []
        @categories.each do |category|
          @tickets[category] = Ticket.where(:category_id => category.id).open.not_urgent.limit(5).asc(:created_at)
          @urgent_tickets[category] = Ticket.where(:category_id => category.id).open.all_urgent.asc(:created_at)
        end
  		else
        @categories = authorizations.collect{|authorization| authorization.category}
        @categories.delete(nil)
        @categories.uniq!
        @categories.each do |category|
          temp = Ticket.where(:category_id => category.id).open.not_urgent.limit(5).asc(:created_at)
          @tickets[category] = temp if temp.count > 0
          temp = Ticket.where(:category_id => category.id).open.all_urgent.asc(:created_at)
          @urgent_tickets[category] = temp if temp.count > 0 
      	end
      end
		end
	end

  def my_tickets
    if params[:type] == "history"
      if params[:keywords].present?
        @tickets = search_tickets
        @tickets = @tickets.where(:taken_by => current_user.id).closed.group_by(&:category) 
      else
        @tickets = Ticket.where(:taken_by => current_user.id).closed.group_by(&:category) 
      end
    else
      if params[:keywords].present?
        @tickets = search_tickets
        @tickets = @tickets.where(:taken_by => current_user.id).commenced.desc(:urgent).group_by(&:category)
      else
        @tickets = Ticket.where(:taken_by => current_user.id).commenced.desc(:urgent).group_by(&:category)
      end
    end
    @categories = @tickets.keys
  end

  def tagged_tickets
    if params[:keywords].present?
      statuses = ["open","commenced", "closed"]
    else
      statuses = ["open","commenced"]
    end
    tqrs = TicketQueryResponse.where(:user_tags.in => [current_user.id.to_s], :read_by.nin => [current_user.id.to_s])
    @unread_tickets = []
    @read_tickets = []
    tqrs.each do |tqr|
      @unread_tickets << tqr.ticket_query.ticket if !tqr.ticket_query.nil? && !tqr.ticket_query.ticket.nil? && statuses.include?(tqr.ticket_query.ticket.status)
    end
    tqrs = TicketQueryResponse.where(:user_tags.in => [current_user.id.to_s], :read_by.in => [current_user.id.to_s])
    tqrs.each do |tqr|
       @read_tickets << tqr.ticket_query.ticket if !tqr.ticket_query.nil? && !tqr.ticket_query.ticket.nil? && statuses.include?(tqr.ticket_query.ticket.status)
    end
    @read_tickets.uniq!
    @unread_tickets.uniq!
    if params[:keywords].present?
      tickets = search_tickets
      @read_tickets = @read_tickets & tickets
      @unread_tickets = @unread_tickets & tickets
    end
    @unread_tickets = @unread_tickets.group_by(&:category)
    @read_tickets = @read_tickets.group_by(&:category)
    @unread_tickets_categories = @unread_tickets.keys
    @read_tickets_categories = @read_tickets.keys
  end

  def show
    @ticket = Ticket.find(params[:id]) rescue nil
    @categories = ModuleApp.find_by_key("ticket").categories
    @members = []
    MemberProfile.all.each do |mp|
      user = mp.user rescue nil
      if !user.nil? && user.id.to_s != current_user.id.to_s
        avatar = (mp.avatar.thumb.url == "thumb_person.png" ? "/assets/thumb_person.png" : mp.avatar.thumb.url rescue "/assets/thumb_person.png")
        @members << {
          "id" => user.id.to_s,
          "user_name" => (user.user_name rescue ""),
          "avatar" => avatar,
          "name" => (mp.name_translations rescue {"en" => "","zh_tw" => ""})
        }
      end
    end
  end

  def changecategory
    ticket = Ticket.find(params[:ticket_id]) rescue nil
    category = Category.find(params[:category_id]) rescue nil
    if !category.nil?
      ticket.category_id = category.id
      ticket.save
    end
    redirect_to admin_ticket_path(ticket.id)
  end

  def start
    ticket = Ticket.find(params[:ticket_id]) rescue nil
    ticket.status = "commenced"
    ticket.taken_by = current_user.id
    ticket.save
    redirect_to admin_ticket_path(ticket.id)
  end

  def close
    ticket = Ticket.find(params[:ticket_id]) rescue nil
    ticket.status = "closed"
    ticket.urgent = false
    ticket.save
    redirect_to admin_ticket_path(ticket.id)
  end

  def leave
    ticket = Ticket.find(params[:ticket_id]) rescue nil
    ticket.status = "open"
    ticket.taken_by = nil
    ticket.save
    redirect_to admin_ticket_path(ticket.id)
  end

  def reopen
    ticket = Ticket.find(params[:ticket_id]) rescue nil
    ticket.status = "open"
    ticket.reopened_count = ticket.reopened_count + 1
    tq = TicketQuery.new
    tq.query = params[:ticket_query]
    tq.ticket = ticket 
    tq.save
    ticket.save
    response = {}
    response["success"] = true
    render :json => response.to_json
  end

  def destroy
    tick = Ticket.find(params[:id]) rescue nil
    tick.destroy if !tick.nil?
    redirect_to admin_tickets_path
  end


  def toggleurgent
    mark_urgent = params[:mark_urgent]
    if mark_urgent
      ticket = Ticket.find(params[:ticket_id]) rescue nil
      if !ticket.nil?
        if mark_urgent == "true"
          if can_mark_urgent?(ticket)
            ticket.urgent = true
            ticket.save
            response = {"success" => true, "can_make_urgent" => true}
          else
            response = {"success" => true, "can_make_urgent" => false}
          end
        else
          ticket.urgent = false
          ticket.save
          response = {"success" => true, "can_make_urgent" => true}
        end
      else
        response = {"success" => false}
      end
    end
    render :json => response.to_json
  end

  def search
    @tickets = search_tickets
    if !@tickets.nil?
      @tickets = @tickets.group_by(&:category)
      @categories = @tickets.keys
    else
      @tickets = {}
      @categories = []
    end
  end

  def submit_response
    tq = TicketQuery.find(params[:ticket_query_id]) rescue nil
    if !tq.nil?
      response = TicketQueryResponse.new
      response.response = smart_store_link_parser(params[:ticket_query_response])
      response.response_by = current_user.id
      response.internal_response = params[:internal_response] if params[:internal_response].present?
      response.user_tags = params[:user_tags]  if params[:user_tags].present?      
      response.save
      tq.ticket_query_responses << response
      if params[:user_tags].present?
        Thread.new do 
          begin
            send_notification_emails(response, tq.ticket)
          rescue e
          end
        end
        url = "/admin/tickets/#{tq.ticket.id.to_s}#response_#{response.id.to_s}"
          Fiber.new{
            params[:user_tags].each do |user_id|
              WebsocketRails["tag_notifications_for_#{user_id}".to_sym].trigger(:new_notification_recieved, {"ticket_link" => "<a href='#{url}'>#{tq.ticket.subject}</a>", "total_ticket_count" => Ticket.get_ticket_unread_count_for_user(user_id), "blink_message" => "#{current_user.name} tagged you!"})
            end
          }.resume
      end
      render :partial => "response", :object => response 
    else
      render :json => {"success" => true}.to_json
    end
  end

  def mark_response_read
    response = TicketQueryResponse.find(params[:response_id]) rescue nil
    if !response.nil?
      response.read_by << current_user.id.to_s if !response.read_by.include?(current_user.id.to_s)
      response.save
      data = {"success" => true, "user_id" => current_user.id.to_s, "total_ticket_count" => Ticket.get_ticket_unread_count_for_user(current_user)}
    else
      data = {"success" => false}
    end
    render :json => data.to_json
  end

  def delete_response
    response = TicketQueryResponse.find(params[:response_id]) rescue nil
    response.destroy if !response.nil?
    render :json => {"success" => true}.to_json
  end

  def tickets_by_category
    @table_fields  = [:tagged, :ticket_number, :site_name, :subject, :created_at, :tags, :status, :taken_by, :urgent]
    statuses = params["type"] == "history" ? ["closed"] : ["open","commenced"]
    @category = Category.find(params[:category_id]) rescue nil
    if params[:keywords].present?
      keywords = params[:keywords]
      type = (keywords.is_i? ? (keywords.length == 8 ? "number" : "text") : "text")
      if type == "text"
        regex = Regexp.new(/[a-z]+:/)
        matches = keywords.scan(regex)
        if !matches.blank?
          smart_field = matches.first
          if @smart_search_fields.include?(smart_field)
            type = "smart"
            keywords = keywords.sub(smart_field,"")
          end
        end
      end
    end
      if type.nil?
        @tickets = Ticket.where(:category_id => @category.id, :status.in => statuses).order_by(sort)
      else
        case type
        when "number"
          @tickets = Ticket.where(:category_id => @category.id, :status.in => statuses, :uid => keywords).order_by(sort)
        when "text"
          @tickets = Ticket.where(:category_id => @category.id, :status.in => statuses).order_by(sort)
          @tickets = search_data(@tickets,[:subject, :uid, :status, :site_type, :ticket_creater_id, :ticket_creater_name])
          regex = Regexp.new(".*"+keywords+".*", "i")
          sites = RegisteredSite.any_of({:title => regex},{:site_domain => regex})
          sites.each do |site|
            @tickets = (@tickets | site.tickets.where(:category_id => @category.id, :status.in => statuses))
          end
        when "smart"
          @tickets = smart_search(statuses,@category,smart_field,keywords)
          @tickets = @tickets.order_by(sort) rescue @tickets
        end
      end if !@category.nil?
      @tickets = @tickets.where(:taken_by => current_user.id) if params[:takenby].present?
      @tickets = Kaminari.paginate_array(@tickets).page(params[:page]).per(15) if !@tickets.nil?
  end

  private 

  def search_tickets
    statuses = ["open","commenced","closed"]
    if params[:keywords].present?
      keywords = params[:keywords]
      type = (keywords.is_i? ? (keywords.length == 8 ? "number" : "text") : "text")
      if type == "text"
        regex = Regexp.new(/[a-z]+:/)
        matches = keywords.scan(regex)
        if !matches.blank?
          smart_field = matches.first
          if @smart_search_fields.include?(smart_field)
            type = "smart"
            keywords = keywords.sub(smart_field,"")
          end
        end
      end
    end
    case type
    when "number"
      tickets = Ticket.where(:status.in => statuses, :uid => keywords)
    when "text"
      tickets = Ticket.where(:status.in => statuses)
      tickets = search_data(tickets,[:subject, :uid, :status, :site_type, :ticket_creater_id, :ticket_creater_name])
      regex = Regexp.new(".*"+keywords+".*", "i")
      sites = RegisteredSite.any_of({:title => regex},{:site_domain => regex})
      sites.each do |site|
        tickets = (tickets | site.tickets.where(:status.in => statuses))
      end
    when "smart"
      tickets = smart_search(statuses,nil,smart_field,keywords)
    end
    tickets
  end

  def can_mark_urgent?(ticket)
    tickets = Ticket.where(:category_id => ticket.category_id, :urgent => true).count
    return tickets < 5
  end

  def set_smart_tags
    @smart_search_fields = ["sitename:","domain:","subject:","ticket:","status:","query:","type:","takenby:","time:"]
  end

  def smart_search(statuses, category = nil, smart_field, keywords)
    keywords = keywords.strip.nil? ? keywords : keywords.strip
    regexes = keywords.split(/\s+(?=(?:[^"]*"[^"]*")*[^"]*$)/)
    regex = Regexp.union(regexes.map{|word| Regexp.new(".*"+word+".*", "i")})
    tickets = []
    case smart_field
    when "sitename:"
      sites = RegisteredSite.where(:title => regex)
      sites.each do |site|
        if category.nil?
          tickets = site.tickets.where(:status.in => statuses).limit(25)
        else
          tickets = site.tickets.where(:category_id => category.id, :status.in => statuses)
        end
      end
    when "domain:"
      sites = RegisteredSite.where(:site_domain => regex)
      sites.each do |site|
        if category.nil?
          tickets = site.tickets.where(:status.in => statuses).limit(25)
        else
          tickets = site.tickets.where(:category_id => category.id, :status.in => statuses)
        end
      end
    when "subject:"
      if category.nil?
        tickets = Ticket.where(:subject => regex, :status.in => statuses).limit(25)
      else
        tickets = Ticket.where(:subject => regex, :status.in => statuses, :category_id => category.id)
      end
    when "ticket:"
      if category.nil?
        tickets = Ticket.where(:uid => keywords)
      else
        tickets = Ticket.where(:uid => keywords, :category_id => category.id)
      end
    when "status:"
      if category.nil?
        tickets = Ticket.where(:status => keywords).limit(25)
      else
        tickets = Ticket.where(:status => keywords, :category_id => category.id)
      end
    when "type:"
      category = Category.where(:"title.en" => regex).first rescue nil
      if category.nil?
        category = Category.where(:"title.zh_tw" => regex).first rescue nil
      end
      tickets = Ticket.where(:category_id => category.id, :status.in => statuses).limit(25) if !category.nil?
    when "time:"
      if keywords.include?("..")
        times = keywords.split("..")
        start_time = times.first
        end_time = times.last
        start_time = start_time + ".01" if start_time.length <= 7  
        end_time = end_time + ".#{Time.days_in_month(end_time.split(".").last.to_i, end_time.split(".").first.to_i)}" if end_time.length <= 7  
        start_date = DateTime.parse(start_time) - 1 rescue nil
        end_date = DateTime.parse(end_time) + 1 rescue nil
      else
        if keywords.length <= 7
          start_time = keywords + ".01"
          end_time = keywords + ".#{Time.days_in_month(keywords.split(".").last.to_i, keywords.split(".").first.to_i)}"  
          start_date = DateTime.parse(start_time) - 1 rescue nil
          end_date = DateTime.parse(end_time) + 1 rescue nil
        else
          start_time = keywords
          start_date = DateTime.parse(start_time) rescue nil
          end_date = DateTime.parse(start_time) + 1 rescue nil 
        end
      end
      return tickets if start_date.nil? || end_date.nil?
      if category.nil?
        tickets = Ticket.where(:created_at => (start_date..end_date), :status.in => statuses).limit(25)
      else
        tickets = Ticket.where(:created_at => (start_date..end_date), :status.in => statuses, :category_id => category.id)
      end
    when "takenby:"
      profiles = MemberProfile.any_of({:"first_name.en" => regex},{:"first_name.zh_tw" => regex},{:"last_name.en" => regex},{:"last_name.zh_tw" => regex})
      profiles.each do |profile|
        user_id = profile.user.id
        if category.nil?
          tickets = (tickets | Ticket.where(:taken_by => user_id, :status.in => statuses))
        else
          tickets = (tickets | Ticket.where(:taken_by => user_id, :category_id => category.id, :status.in => statuses))
        end
      end
    when "query:"
      queries = TicketQuery.where(:query => regex).limit(25)
      queries.each do |query|
        if category.nil?
          tickets << query.ticket if statuses.include?(query.ticket.status) && !tickets.include?(query.ticket)
        else
          tickets << query.ticket if statuses.include?(query.ticket.status) && query.ticket.category_id == category.id && !tickets.include?(query.ticket)
        end
      end
      if params[:sort].present?
        s = Sanitize.clean(params[:sort]).to_sym
        if params[:order] == "desc"
          tickets = tickets.sort{|a,b| b[s] <=> a[s]}
        elsif params[:order] == "asc"
          tickets = tickets.sort{|a,b| a[s] <=> b[s]}
        end
      end
    end
    tickets
  end
	
end