class Admin::BudgetInvestmentsController < Admin::BaseController
  include FeatureFlags
  include CommentableActions

  feature_flag :budgets

  has_orders %w{oldest}, only: [:show, :edit]
  has_filters(%w{all without_admin without_valuator under_valuation
                 valuation_finished winners},
              only: [:index, :toggle_selection])

  before_action :load_budget
  before_action :load_investment, only: [:show, :edit, :update, :toggle_selection]
  before_action :load_ballot, only: [:show, :index]
  before_action :load_investments, only: [:index, :toggle_selection]

  def index
    respond_to do |format|
      format.html
      format.js
      format.csv do
        send_data Budget::Investment.to_csv(@investments, headers: true),
                  filename: 'budget_investments.csv'
      end
    end
  end

  def show
    load_comments
  end

  def edit
    load_admins
    load_valuators
    load_tags
  end

  def update
    set_valuation_tags
    if @investment.update(budget_investment_params)
      redirect_to admin_budget_budget_investment_path(@budget,
                                                      @investment,
                                                      Budget::Investment.filter_params(params)),
                  notice: t("flash.actions.update.budget_investment")
    else
      load_admins
      load_valuators
      load_tags
      render :edit
    end
  end

  def toggle_selection
    @investment.toggle :selected
    @investment.save
    load_investments
  end

  private

    def load_comments
      @commentable = @investment
      @comment_tree = CommentTree.new(@commentable, params[:page], @current_order, valuations: true)
      set_comment_flags(@comment_tree.comments)
    end

    def resource_model
      Budget::Investment
    end

    def resource_name
      resource_model.parameterize('_')
    end

    def sort_by(params)
      if params.present? && Budget::Investment::SORTING_OPTIONS.include?(params)
        "#{params == 'supports' ? 'cached_votes_up' : params} ASC"
      else
        "cached_votes_up DESC, created_at DESC"
      end
    end

    def load_investments
      @investments = if params[:title_or_id].present?
                       Budget::Investment.search_by_title_or_id(params)
                     else
                       Budget::Investment.scoped_filter(params, @current_filter)
                                         .order(sort_by(params[:sort_by]))
                     end
      @investments = @investments.page(params[:page]) unless request.format.csv?
    end

    def budget_investment_params
      params.require(:budget_investment)
            .permit(:title, :description, :external_url, :heading_id, :administrator_id, :tag_list,
                    :valuation_tag_list, :incompatible, :selected, valuator_ids: [])
    end

    def load_budget
      @budget = Budget.includes(:groups).find(params[:budget_id])
    end

    def load_investment
      @investment = Budget::Investment.by_budget(@budget).find(params[:id])
    end

    def load_admins
      @admins = Administrator.includes(:user).all
    end

    def load_valuators
      @valuators = Valuator.includes(:user).all.order(description: :asc).order("users.email ASC")
    end

    def load_tags
      @tags = Budget::Investment.tags_on(:valuation).order(:name).uniq
    end

    def load_ballot
      query = Budget::Ballot.where(user: current_user, budget: @budget)
      @ballot = @budget.balloting? ? query.first_or_create : query.first_or_initialize
    end

    def set_valuation_tags
      @investment.set_tag_list_on(:valuation, budget_investment_params[:valuation_tag_list])
      params[:budget_investment] = params[:budget_investment].except(:valuation_tag_list)
    end

end