First try

PdfManager::MedicalRecordForm first attempt

module PdfManager::MedicalRecordForm
  class CreatePdf < ApplicationService
    # attrs aren't needed to test
    # attr_reader :provider, :account, :resident, :medical_record_form, :medical_record_forms
    def initialize(args)
      # @pdf = FillablePDF.new('app/pdfs/medication_record_form.pdf')
      @pdfs = []
      # Not needed in test 
      # @provider = args[:provider]
      # @account = args[:account]
      # @resident = args[:resident]
      # @medical_record_form = args[:medical_record_form]
      # @medical_record_forms = args[:medical_record_forms]
    end

    def call
      convert_to_pdf
    end

    private

    def convert_to_pdf
      set_scheduled_meds
    end

    def set_scheduled_meds
      # For every 5 meds create new pdf
      # Fill out scheduled meds & histogram
      # Scheduled med vars
      count = 0
      med_name_count = 0
      given_at_count = 0

      # Vars universal to page
      current_month = (Date.current.beginning_of_month..Date.current.end_of_month).to_a
      stamp_time = @medical_record_form.date_of_record
      # stamp_time = FormatHelper.pdf_date_formatted(@medical_record_form.date_of_record)
      pdf_uuid_count = 0
      completed_pdfs = []
      combined_pdf = CombinePDF.new

      # For every 3 PRN meds create new pdf
      # Fill out PRN meds if any & histogram
      # PRN med vars
      prn_count = 0
      prn_med_name_count = 0
      prn_given_at_count = 0

      resident.medications.where(usage_type: 'Scheduled').each_slice(5) do |page|
        if med_name_count == 0
          # Create a new fillable pdf
          instance_variable_set("@pdf_#{count+=1}", FillablePDF.new('app/pdfs/medication_record_form.pdf'))
        end
        # Set page's static fields
        instance_variable_get("@pdf_#{count}").set_field(:resident_full_name, resident.full_name)
        instance_variable_get("@pdf_#{count}").set_field(:month, medical_record_form.date_of_record.strftime('%B'))
        instance_variable_get("@pdf_#{count}").set_field(:year, medical_record_form.date_of_record.strftime('%Y'));

        page.map do |med|
          # Print to scheduled medicine & histogram
          if med_name_count >= 5
            med_name_count = 0
            # instance_variable_set("@pdf_#{count+=1}", FillablePDF.new('app/pdfs/medication_record_form.pdf'))
          end
          # Print medicine name to page
          instance_variable_get("@pdf_#{count}").set_field("med#{med_name_count+=1}_name", med.name)
          # Print times medicine was given
          med.administers.each_slice(4) do |page|
            page.map do |x|
              if given_at_count >= 4
                given_at_count = 0
              end
              instance_variable_get("@pdf_#{count}").set_field("med#{med_name_count}_given#{given_at_count+=1}", med.time_formatted(x.time_taken))
            end
          end
          # Illustrate with Employee initials if med was given for specific day in histogram
          # Place X for days that have passed but no medicine administration given
          current_month.map do |today|
            if medical_record_forms.any? { |record| record.date_of_record == today && record.medications.include?(med) && today.strftime('%d') <= Date.current.strftime('%d')}
              employee_id = medical_record_forms.where({date_of_record: today}).first.employee_id
              employee = Employee.find_by!(id: employee_id)

              instance_variable_get("@pdf_#{count}").set_field(
                "med#{med_name_count}_given#{given_at_count}_day_#{today.strftime('%d')}",
                employee.initials
              )
            elsif today.strftime('%d') <= Date.current.strftime('%d')
              instance_variable_get("@pdf_#{count}").set_field(
                "med#{med_name_count}_given#{given_at_count}_day_#{today.strftime('%d')}",
                'X'
              )
            end
          end
        end
        completed_pdfs << instance_variable_get("@pdf_#{count}")
      end
      # END Scheduled meds loop
      # START PRN meds loop
      resident.medications.where(usage_type: 'PRN').each_slice(3) do |page|
        # Create a new fillable pdf
        if prn_med_name_count >= 3
          prn_med_name_count = 0
          instance_variable_set("@pdf_#{count+=1}", FillablePDF.new('app/pdfs/medication_record_form.pdf'))
        end

        page.map do |med|
        # Start print to PRN & its histogram
          # Print medicine name to page
          instance_variable_get("@pdf_#{count}".to_sym).set_field("prn_med#{prn_med_name_count+=1}_name", med.name)
          # Print times medicine was given
          med.administers.each_slice(1) do |page|
            page.map do |x|
              if prn_given_at_count >= 1
                prn_given_at_count = 0
              end
              instance_variable_get("@pdf_#{count}").set_field("prn_med#{prn_med_name_count}_given_day_#{prn_given_at_count+=1}", med.time_formatted(x.time_taken))
            end
          end
          # Illustrate with Employee initials if med was given for specific day in histogram
          # Place X for days that have passed but no medicine administration given
          current_month.map do |today|

            if medical_record_forms.any? { |record| record.date_of_record == today && record.medications.include?(med) && today.strftime('%d') <= Date.current.strftime('%d')}
              # given_at_count+=1
              employee_id = medical_record_forms.where({date_of_record: today}).first.employee_id
              employee = Employee.find_by!(id: employee_id)

              instance_variable_get("@pdf_#{count}").set_field(
                "prn_med#{prn_med_name_count}_given",
                employee.initials
              )
            elsif today.strftime('%d') <= Date.current.strftime('%d')
              instance_variable_get("@pdf_#{count}").set_field(
                "prn_med#{prn_med_name_count}_given",
                'X'
              )
            end
          end
        end
        completed_pdfs << instance_variable_get("@pdf_#{count}")
      end

      completed_pdfs.each do |pdf|
        # Set name and file-path
        stamp_time = FormatHelper.pdf_date_formatted(@medical_record_form.date_of_record)
        pdf_uuid = "#{resident.first_name.downcase}_#{resident.last_name.downcase}_medication_record_for_#{medical_record_form.pdf_date_formatted(stamp_time)}_#{pdf_uuid_count+=1}.pdf"
        pdf_uuid_filepath = Rails.root.join('app/pdfs/store/medical_record_forms/', pdf_uuid).to_s


        # Save locally
        # pdf = combined_pdf.save(pdf_uuid_filepath)
        # instance_variable_get("@pdf_#{count}").save_as(pdf_uuid_filepath)
        pdf.save_as(pdf_uuid_filepath)

        # Upload to s3
        s3 = Aws::S3::Resource.new(region:'us-east-1')
        obj = s3.bucket('whizcharts').object("pdfs/medical_record_forms/#{pdf_uuid}")
        # obj = s3.bucket('whizcharts').object("/pdfs/medical_record_forms/#{pdf_uuid}")
        obj.upload_file("#{pdf_uuid_filepath}")
        # File.delete(Rails.root + '/foo.jpg')
      end
    end
  end
end