# frozen_string_literal: true

# API Controller for resources of type User with role 'member'
class API::MembersController < API::ApiController
  before_action :authenticate_user!, except: [:last_subscribed]
  before_action :set_member, only: %i[update destroy merge complete_tour update_role validate]
  respond_to :json

  def index
    @requested_attributes = params[:requested_attributes]
    @query = policy_scope(User)

    @query = @query.page(params[:page].to_i).per(params[:size].to_i) unless params[:page].nil? && params[:size].nil?

    # remove unmerged profiles from list
    @members = @query.to_a
    @members.delete_if(&:need_completion?)
  end

  def last_subscribed
    @query = User.active.with_role(:member)
                 .includes(:statistic_profile, profile: [:user_avatar])
                 .where('is_allow_contact = true AND confirmed_at IS NOT NULL')
                 .order('created_at desc')
                 .limit(params[:last])

    # remove unmerged profiles from list
    @members = @query.to_a
    @members.delete_if(&:need_completion?)

    @requested_attributes = ['profile']
    render :index
  end

  def show
    @member = User.friendly.find(params[:id])
    authorize @member
  end

  def create
    authorize :user, :create_member?

    @member = User.new(user_params.permit!)
    members_service = Members::MembersService.new(@member)

    if members_service.create(current_user, user_params)
      render :show, status: :created, location: member_path(@member)
    else
      render json: @member.errors, status: :unprocessable_entity
    end
  end

  def update
    authorize @member
    members_service = Members::MembersService.new(@member)

    if members_service.update(user_params)
      # Update password without logging out
      bypass_sign_in(@member) unless current_user.id != params[:id].to_i
      render :show, status: :ok, location: member_path(@member)
    else
      render json: @member.errors, status: :unprocessable_entity
    end
  end

  def destroy
    authorize @member
    @member.destroy
    sign_out(@member) if @member.id == current_user.id
    head :no_content
  end

  # export subscriptions
  def export_subscriptions
    authorize :export

    export = Export.where(category: 'users', export_type: 'subscriptions')
                   .where('created_at > ?', Subscription.maximum('updated_at'))
                   .last
    if export.nil? || !FileTest.exist?(export.file)
      @export = Export.new(category: 'users', export_type: 'subscriptions', user: current_user)
      if @export.save
        render json: { export_id: @export.id }, status: :ok
      else
        render json: @export.errors, status: :unprocessable_entity
      end
    else
      send_file File.join(Rails.root, export.file),
                type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                disposition: 'attachment'
    end
  end

  # export reservations
  def export_reservations
    authorize :export

    export = Export.where(category: 'users', export_type: 'reservations')
                   .where('created_at > ?', Reservation.maximum('updated_at'))
                   .last
    if export.nil? || !FileTest.exist?(export.file)
      @export = Export.new(category: 'users', export_type: 'reservations', user: current_user)
      if @export.save
        render json: { export_id: @export.id }, status: :ok
      else
        render json: @export.errors, status: :unprocessable_entity
      end
    else
      send_file File.join(Rails.root, export.file),
                type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                disposition: 'attachment'
    end
  end

  def export_members
    authorize :export

    last_update = [
      User.members.maximum('updated_at'),
      Profile.where(user_id: User.members).maximum('updated_at'),
      InvoicingProfile.where(user_id: User.members).maximum('updated_at'),
      StatisticProfile.where(user_id: User.members).maximum('updated_at'),
      Subscription.maximum('updated_at') || DateTime.current
    ].max

    export = Export.where(category: 'users', export_type: 'members')
                   .where('created_at > ?', last_update)
                   .last
    if export.nil? || !FileTest.exist?(export.file)
      @export = Export.new(category: 'users', export_type: 'members', user: current_user)
      if @export.save
        render json: { export_id: @export.id }, status: :ok
      else
        render json: @export.errors, status: :unprocessable_entity
      end
    else
      send_file File.join(Rails.root, export.file),
                type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                disposition: 'attachment'
    end
  end

  # the user is querying to be mapped to his already existing account
  def merge
    authorize @member

    token = token_param

    @account = User.find_by(auth_token: token)
    if @account
      members_service = Members::MembersService.new(@account)
      begin
        if members_service.merge_from_sso(@member)
          @member = @account
          # finally, log on the real account
          sign_in(@member, bypass: true)
          render :show, status: :ok, location: member_path(@member)
        else
          render json: @member.errors, status: :unprocessable_entity
        end
      rescue DuplicateIndexError => error
        render json: { error: t('members.please_input_the_authentication_code_sent_to_the_address', EMAIL: error.message) },
               status: :unprocessable_entity
      end
    else
      render json: { error: t('members.your_authentication_code_is_not_valid') }, status: :unprocessable_entity
    end
  end

  def list
    authorize User

    render json: { error: 'page must be an integer' }, status: :unprocessable_entity and return unless query_params[:page].is_a? Integer
    render json: { error: 'size must be an integer' }, status: :unprocessable_entity and return unless query_params[:size].is_a? Integer

    query = Members::ListService.list(query_params)
    @max_members = query.except(:offset, :limit, :order).count
    @members = query.to_a

  end

  def search
    @members = Members::ListService.search(current_user, params[:query], params[:subscription], params[:include_admins])
  end

  def mapping
    authorize User

    @members = User.includes(:profile)
  end

  def complete_tour
    authorize @member

    if Setting.get('feature_tour_display') == 'session'
      render json: { tours: [params[:tour]] }
    else
      tours = "#{@member.profile.tours} #{params[:tour]}"
      @member.profile.update_attributes(tours: tours.strip)

      render json: { tours: @member.profile.tours.split }
    end
  end

  def update_role
    authorize @member

    # we do not allow dismissing a user to a lower role
    if params[:role] == 'member'
      render 403 and return if @member.role == 'admin' || @member.role == 'manager'
    elsif params[:role] == 'manager'
      render 403 and return if @member.role == 'admin'
    end

    # do nothing if the role does not change
    render json: @member and return if params[:role] == @member.role

    ex_role = @member.role.to_sym
    @member.remove_role ex_role
    @member.add_role params[:role]

    # if the new role is 'admin', then change the group to the admins group
    @member.update_attributes(group_id: Group.find_by(slug: 'admins').id) if params[:role] == 'admin'

    NotificationCenter.call type: 'notify_user_role_update',
                            receiver: @member,
                            attached_object: @member

    NotificationCenter.call type: 'notify_admins_role_update',
                            receiver: User.admins_and_managers,
                            attached_object: @member,
                            meta_data: { ex_role: ex_role }

    render json: @member
  end

  def current
    @member = current_user
    authorize @member
    render json: @member
  end

  def validate
    authorize @member

    members_service = Members::MembersService.new(@member)

    uparams = params.require(:user).permit(:validated_at)
    if members_service.validate(uparams[:validated_at].present?)
      render :show, status: :ok, location: member_path(@member)
    else
      render json: @member.errors, status: :unprocessable_entity
    end
  end

  private

  def set_member
    @member = User.find(params[:id])
  end

  def user_params
    if current_user.id == params[:id].to_i
      params.require(:user).permit(:username, :email, :password, :password_confirmation, :group_id, :is_allow_contact, :is_allow_newsletter,
                                   profile_attributes: [:id, :first_name, :last_name, :phone, :interest, :software_mastered, :website, :job,
                                                        :facebook, :twitter, :google_plus, :viadeo, :linkedin, :instagram, :youtube, :vimeo,
                                                        :dailymotion, :github, :echosciences, :pinterest, :lastfm, :flickr,
                                                        user_avatar_attributes: %i[id attachment destroy]],
                                   invoicing_profile_attributes: [
                                     :id, :organization,
                                     address_attributes: %i[id address],
                                     organization_attributes: [:id, :name, address_attributes: %i[id address]],
                                     user_profile_custom_fields_attributes: %i[id value invoicing_profile_id profile_custom_field_id]
                                   ],
                                   statistic_profile_attributes: %i[id gender birthday])

    elsif current_user.admin? || current_user.manager?
      params.require(:user).permit(:username, :email, :password, :password_confirmation, :is_allow_contact, :is_allow_newsletter, :group_id,
                                   tag_ids: [],
                                   profile_attributes: [:id, :first_name, :last_name, :phone, :interest, :software_mastered, :website, :job,
                                                        :facebook, :twitter, :google_plus, :viadeo, :linkedin, :instagram, :youtube, :vimeo,
                                                        :dailymotion, :github, :echosciences, :pinterest, :lastfm, :flickr,
                                                        user_avatar_attributes: %i[id attachment destroy]],
                                   invoicing_profile_attributes: [
                                     :id, :organization,
                                     address_attributes: %i[id address],
                                     organization_attributes: [:id, :name, address_attributes: %i[id address]],
                                     user_profile_custom_fields_attributes: %i[id value invoicing_profile_id profile_custom_field_id]
                                   ],
                                   statistic_profile_attributes: [:id, :gender, :birthday, training_ids: []])

    end
  end

  def token_param
    params.require(:user).permit(:auth_token)[:auth_token]
  end

  def query_params
    params.require(:query).permit(:search, :filter, :order_by, :page, :size)
  end
end