class PseudsController < ApplicationController
  cache_sweeper :pseud_sweeper

  before_action :load_user
  before_action :check_ownership, only: [:create, :destroy, :new]
  before_action :check_ownership_or_admin, only: [:edit, :update]
  before_action :check_user_status, only: [:new, :create, :edit, :update]

  def load_user
    @user = User.find_by!(login: params[:user_id])
    @check_ownership_of = @user
  end

  # GET /pseuds
  # GET /pseuds.xml
  def index
    @pseuds = @user.pseuds.with_attached_icon.alphabetical.paginate(page: params[:page])
    @rec_counts = Pseud.rec_counts_for_pseuds(@pseuds)
    @work_counts = Pseud.work_counts_for_pseuds(@pseuds)
    @page_subtitle = @user.login
  end

  # GET /users/:user_id/pseuds/:id
  def show
    @pseud = @user.pseuds.find_by!(name: params[:id])
    @page_subtitle = @pseud.name

    # very similar to show under users - if you change something here, change it there too
    if logged_in? || logged_in_as_admin?
      visible_works = @pseud.works.visible_to_registered_user
      visible_series = @pseud.series.visible_to_registered_user
      visible_bookmarks = @pseud.bookmarks.visible_to_registered_user
    else
      visible_works = @pseud.works.visible_to_all
      visible_series = @pseud.series.visible_to_all
      visible_bookmarks = @pseud.bookmarks.visible_to_all
    end

    visible_works = visible_works.revealed.non_anon
    visible_series = visible_series.exclude_anonymous

    @fandoms = \
      Fandom.select("tags.*, count(DISTINCT works.id) as work_count")
        .joins(:filtered_works).group("tags.id").merge(visible_works)
        .where(filter_taggings: { inherited: false })
        .order("work_count DESC").load

    @works = visible_works.order("revised_at DESC").limit(ArchiveConfig.NUMBER_OF_ITEMS_VISIBLE_IN_DASHBOARD)
    @series = visible_series.order("updated_at DESC").limit(ArchiveConfig.NUMBER_OF_ITEMS_VISIBLE_IN_DASHBOARD)
    @bookmarks = visible_bookmarks.order("updated_at DESC").limit(ArchiveConfig.NUMBER_OF_ITEMS_VISIBLE_IN_DASHBOARD)

    return unless current_user.respond_to?(:subscriptions)

    @subscription = current_user.subscriptions.where(subscribable_id: @user.id,
                                                     subscribable_type: "User").first ||
                    current_user.subscriptions.build(subscribable: @user)
  end

  # GET /pseuds/new
  # GET /pseuds/new.xml
  def new
    @pseud = @user.pseuds.build
  end

  # GET /pseuds/1/edit
  def edit
    @pseud = @user.pseuds.find_by!(name: params[:id])
    authorize @pseud if logged_in_as_admin?
  end

  # POST /pseuds
  # POST /pseuds.xml
  def create
    @pseud = Pseud.new(permitted_attributes(Pseud))
    if @user.pseuds.where(name: @pseud.name).blank?
      @pseud.user_id = @user.id
      old_default = @user.default_pseud
      if @pseud.save
        flash[:notice] = t(".successfully_created")
        if @pseud.is_default
          # if setting this one as default, unset the attribute of the current default pseud
          old_default.update_attribute(:is_default, false)
        end
        redirect_to polymorphic_path([@user, @pseud])
      else
        render action: "new"
      end
    else
      # user tried to add pseud they already have
      flash[:error] = t(".already_have_pseud_with_name")
      render action: "new"
    end
  end

  # PUT /pseuds/1
  # PUT /pseuds/1.xml
  def update
    @pseud = @user.pseuds.find_by(name: params[:id])
    authorize @pseud if logged_in_as_admin?
    default = @user.default_pseud
    if @pseud.update(permitted_attributes(@pseud))
      if logged_in_as_admin? && @pseud.ticket_url.present?
        link = view_context.link_to("Ticket ##{@pseud.ticket_number}", @pseud.ticket_url)
        summary = "#{link} for User ##{@pseud.user_id}"
        AdminActivity.log_action(current_admin, @pseud, action: "edit pseud", summary: summary)
      end
      # if setting this one as default, unset the attribute of the current default pseud
      default.update_attribute(:is_default, false) if @pseud.is_default && default != @pseud
      flash[:notice] = t(".successfully_updated")
      redirect_to([@user, @pseud])
    else
      render action: "edit"
    end
  end

  # DELETE /pseuds/1
  # DELETE /pseuds/1.xml
  def destroy
    @hide_dashboard = true
    if params[:cancel_button]
      flash[:notice] = t(".not_deleted")
      redirect_to(user_pseuds_path(@user)) && return
    end

    @pseud = @user.pseuds.find_by(name: params[:id])
    if @pseud.is_default
      flash[:error] = t(".cannot_delete_default")
    elsif @pseud.name == @user.login
      flash[:error] = t(".cannot_delete_matching_username")
    elsif params[:bookmarks_action] == "transfer_bookmarks"
      @pseud.change_bookmarks_ownership
      @pseud.replace_me_with_default
      flash[:notice] = t(".successfully_deleted")
    elsif params[:bookmarks_action] == "delete_bookmarks" || @pseud.bookmarks.empty?
      @pseud.replace_me_with_default
      flash[:notice] = t(".successfully_deleted")
    else
      render "delete_preview" and return
    end

    redirect_to(user_pseuds_path(@user))
  end
end