module BudgetsHelper
  def show_links_to_budget_investments(budget)
    ["balloting", "reviewing_ballots", "finished"].include? budget.phase
  end

  def heading_name_and_price_html(heading, budget)
    content_tag :div do
      concat(heading.name + " ")
      concat(content_tag(:span, budget.formatted_heading_price(heading)))
    end
  end

  def csv_params
    csv_params = params.clone.merge(format: :csv)
    csv_params = csv_params.to_unsafe_h.map { |k, v| [k.to_sym, v] }.to_h
    csv_params.delete(:page)
    csv_params
  end

  def budget_phases_select_options
    Budget::Phase::PHASE_KINDS.map { |ph| [t("budgets.phase.#{ph}"), ph] }
  end

  def budget_currency_symbol_select_options
    Budget::CURRENCY_SYMBOLS.map { |cs| [cs, cs] }
  end

  def namespaced_budget_investment_path(investment, options = {})
    case namespace
    when "management"
      management_budget_investment_path(investment.budget, investment, options)
    else
      budget_investment_path(investment.budget, investment, options)
    end
  end

  def namespaced_budget_investment_vote_path(investment, options = {})
    case namespace
    when "management"
      vote_management_budget_investment_path(investment.budget, investment, options)
    else
      vote_budget_investment_path(investment.budget, investment, options)
    end
  end

  def css_for_ballot_heading(heading)
    return "" if current_ballot.blank? || @current_filter == "unfeasible"

    current_ballot.has_lines_in_heading?(heading) ? "is-active" : ""
  end

  def current_ballot
    Budget::Ballot.where(user: current_user, budget: @budget).first
  end

  def investment_tags_select_options(budget, context)
    budget.investments.tags_on(context).order(:name).pluck(:name)
  end

  def unfeasible_or_unselected_filter
    ["unselected", "unfeasible"].include?(@current_filter)
  end

  def budget_published?(budget)
    !budget.drafting? || current_user&.administrator?
  end

  def current_budget_map_locations
    return unless current_budget.present?

    if current_budget.publishing_prices_or_later? && current_budget.investments.selected.any?
      investments = current_budget.investments.selected
    else
      investments = current_budget.investments
    end

    MapLocation.where(investment_id: investments).map(&:json_data)
  end

  def display_calculate_winners_button?(budget)
    budget.balloting_or_later?
  end

  def calculate_winner_button_text(budget)
    if budget.investments.winners.empty?
      t("admin.budgets.winners.calculate")
    else
      t("admin.budgets.winners.recalculate")
    end
  end

  def display_support_alert?(investment)
    current_user &&
    !current_user.voted_in_group?(investment.group) &&
    investment.group.headings.count > 1
  end

  def link_to_create_budget_poll(budget)
    balloting_phase = budget.phases.where(kind: "balloting").first

    link_to t("admin.budgets.index.admin_ballots"),
            admin_polls_path(poll: {
                              name:      budget.name,
                              budget_id: budget.id,
                              starts_at: balloting_phase.starts_at,
                              ends_at:   balloting_phase.ends_at }),
            method: :post
  end

  def budget_subnav_items_for(budget)
    {
      results:    t("budgets.results.link"),
      stats:      t("stats.budgets.link"),
      executions: t("budgets.executions.link")
    }.select { |section, _| can?(:"read_#{section}", budget) }.map do |section, text|
      {
        text: text,
        url:  send("budget_#{section}_path", budget),
        active: controller_name == section.to_s
      }
    end
  end
end