class Admin::ConferenceController < ApplicationController
  include HomeHelper
  before_filter :verify_organizer

  def index
    # Redirect to new form if there is no conference
    if Conference.count == 0
      redirect_to new_admin_conference_path
      return
    end

    @total_user = User.count
    @new_user = User.where('created_at > ?', current_user.last_sign_in_at).count

    @total_reg = Registration.count
    @new_reg = Registration.where('created_at > ?', current_user.last_sign_in_at).count

    @total_submissions = Event.count
    @new_submissions = Event.where('created_at > ?', current_user.last_sign_in_at).count

    @active_conferences = Conference.get_active_conferences_for_dashboard # pending or the last two
    @deactive_conferences = Conference.
      get_conferences_without_active_for_dashboard(@active_conferences) # conferences without active
    @conferences = @active_conferences + @deactive_conferences

    @recent_users = User.limit(5).order(created_at: :desc)
    @recent_events = Event.limit(5).order(created_at: :desc)
    @recent_registrations = Registration.limit(5).order(created_at: :desc)

    @top_submitter = Conference.get_top_submitter

    @submissions = {}
    @cfp_weeks = [0]

    @registrations = {}
    @registration_weeks = [0]

    @conferences.each do |c|
      # Event submissions over time chart
      @submissions[c.short_title] = c.get_submissions_per_week
      @cfp_weeks.push(@submissions[c.short_title].length)

      # Conference registrations over time chart
      @registrations[c.short_title] = c.get_registrations_per_week
      @registration_weeks.push(@registrations[c.short_title].length)
    end

    @cfp_weeks = @cfp_weeks.max
    @submissions = normalize_array_length(@submissions, @cfp_weeks)
    @cfp_weeks = @cfp_weeks > 0 ? (1..@cfp_weeks).to_a : 1

    @registration_weeks = @registration_weeks.max
    @registrations = normalize_array_length(@registrations, @registration_weeks)
    @registration_weeks = @registration_weeks > 0 ? (1..@registration_weeks).to_a : 1

    @event_distribution = Conference.event_distribution
    @user_distribution = Conference.user_distribution
  end

  def new
    @conference = Conference.new
  end

  def create
    @conference = Conference.new(params[:conference])
    if @conference.valid?
      @conference.save
      redirect_to(admin_conference_path(id: @conference.short_title),
                  notice: 'Conference was successfully created.')
    else
      render action: 'new'
    end
  end

  def update
    @conference = Conference.find_by(short_title: params[:id])
    short_title = @conference.short_title
    @conference.assign_attributes(params[:conference])
    if @conference.start_date_changed? || @conference.end_date_changed?
      if @conference.email_settings.send_on_updated_conference_dates
        Mailbot.conference_date_update_mail(@conference,date_string(@conference.start_date, @conference.end_date)).deliver
      end
    end
    if @conference.update_attributes(params[:conference])
      redirect_to(edit_admin_conference_path(id: @conference.short_title),
                  notice: 'Conference was successfully updated.')
    else
      redirect_to(edit_admin_conference_path(id: short_title),
                  alert: 'Updating conference failed. ' \
                  "#{@conference.errors.full_messages.join('. ')}.")
    end
  end

  def show
    @conference = Conference.find_by(short_title: params[:id])

    # Overview and since last login information
    @total_reg = @conference.registrations.count
    @new_reg = @conference.registrations.where('created_at > ?', current_user.last_sign_in_at).count

    @total_submissions = @conference.events.count
    @new_submissions = @conference.events.
        where('created_at > ?', current_user.last_sign_in_at).count

    @program_length = @conference.current_program_hours
    @new_program_length = @conference.new_program_hours(current_user.last_sign_in_at)

    #  Step by step list
    @conference_progress = @conference.get_status

    # Line charts
    @registrations = { @conference.short_title => @conference.get_registrations_per_week }
    @registration_weeks = [0]
    @registration_weeks.push(@registrations[@conference.short_title].length)

    @registration_weeks = @registration_weeks.max
    @registrations = normalize_array_length(@registrations, @registration_weeks)
    @registration_weeks = @registration_weeks > 0 ? (1..@registration_weeks).to_a : 1

    @submissions = Conference.get_event_state_line_colors

    @submissions_data = {}
    @cfp_weeks = [0]
    @submissions_data['Submitted'] = @conference.get_submissions_per_week
    @cfp_weeks.push(@submissions_data['Submitted'].length)

    @submissions_data['Confirmed'] = @conference.get_submissions_per_week_by_status('confirmed')
    @cfp_weeks.push(@submissions_data['Confirmed'].length)

    @submissions_data['Unconfirmed'] = @conference.get_submissions_per_week_by_status('unconfirmed')
    @cfp_weeks.push(@submissions_data['Unconfirmed'].length)

    @cfp_weeks = @cfp_weeks.max
    @submissions_data = normalize_array_length(@submissions_data, @cfp_weeks)
    @cfp_weeks = @cfp_weeks > 0 ? (1..@cfp_weeks).to_a : 1

    # Doughnut charts
    @event_type_distribution = @conference.event_type_distribution
    @event_type_distribution_confirmed = @conference.event_type_distribution(:confirmed)

    @difficulty_levels_distribution = @conference.difficulty_levels_distribution
    @difficulty_levels_distribution_confirmed = @conference.
        difficulty_levels_distribution(:confirmed)

    @tracks_distribution = @conference.tracks_distribution
    @tracks_distribution_confirmed = @conference.tracks_distribution(:confirmed)

    # Recent actions information
    @recent_events = @conference.events.limit(5).order(created_at: :desc)
    @recent_registrations = @conference.registrations.limit(5).order(created_at: :desc)

    @top_submitter = @conference.get_top_submitter

    # get targets
    @registration_targets = @conference.get_targets(Target.units[:registrations])
    @submission_targets = @conference.get_targets(Target.units[:submissions])
    @program_minutes_targets = @conference.get_targets(Target.units[:program_minutes])

    # get campaigns
    @campaigns = @conference.get_campaigns

    respond_to do |format|
      format.html
      format.json { render json: @conference.to_json }
    end
  end

  def edit
    @conferences = Conference.all
    @conference = Conference.find_by(short_title: params[:id])
    respond_to do |format|
      format.html
      format.json { render json: @conference.to_json }
    end
  end
end