pdf_generation.rb

module PdfGeneration

  def pdf_options(report)
    {
      pdf: "report",
      layout: "report_pdf",
      template: "reports/show",
      orientation: "Landscape",
      page_size: "Letter",
      print_media_type: true,
      margin: { top: 12, bottom: 7, left: 5, right: 5 }
    }
  end

  def add_marginals(doc, project: self.project, description: nil, generated_at: Time.now, portfolio: nil)
    doc.number_pages(
      number_format: "Page %s of #{doc.pages.size}",
      location: :bottom_right,
      margin_from_height: 0,
      font_size: 7,
    )
    doc.stamp_pages(
      portfolio ? "Portfolio ID: #{portfolio.id}" : "Project ID: #{project.rivur_id.first(5)}",
      location: :bottom_left,
      margin_from_height: 0,
      font_size: 7,
    )
    title = portfolio ? portfolio.name.upcase : [project.name.upcase, "(#{project.corporate_entity_name})", description].compact.join(' ')
    doc.stamp_pages(
      title,
      location: :top_left,
      margin_from_height: 30,
      margin_from_side: 0,
      font_size: 8,
    )
    timestamp = Time.use_zone("America/New_York") { generated_at.strftime('%m/%d/%Y at %l:%M %p') }
    doc.stamp_pages(
      "Generated by Rivur.com on #{timestamp}".squeeze(' '),
      location: :top_right,
      margin_from_height: 30,
      margin_from_side: 0,
      font_size: 8,
    )
    doc
  end

  def build_draw_report(draw)
    draw.project.refresh_pending_costs!
    combined = CombinePDF.new
    %w(ProjectCostReport AccountCodeDetailReport InvoiceRegister).each do |report_type|
      self.report = Report.create(type: report_type, project: draw.project, draw: draw, created_at: draw.updated_at)
      combined << CombinePDF.parse(make_pdf(pdf_options(report)))
    end
    draw.invoices.order(:invoice_number).each do |invoice|
      [invoice.document, invoice.conditional_lien_waiver].compact.each do |document|
        begin
          combined << CombinePDF.parse(document.read).tap { |d| d.pages.each(&:fix_rotation) }
        rescue => e
          logger.error "Error processing document from invoice #{invoice.id}"
          logger.error e
        end
      end
    end
    portrait = combined.pages.select { |p| p.orientation == :portrait }
    portrait.each { |p| p.rotate_left }
    add_marginals(combined, project: draw.project, description: "Draw #{draw.number}")
    portrait.each { |p| p.rotate_right }
    combined.to_pdf
  end

  def build_portfolio_report(portfolio)
    self.report = portfolio.portfolio_cost_reports.last
    pdf = make_pdf(pdf_options(report))
    add_marginals(
      CombinePDF.parse(pdf),
      project: nil,
      portfolio: portfolio,
      generated_at: report.created_at
    ).to_pdf
  end
end