Class: Formulary::DrugListGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/formulary/drug_list_generator.rb

Overview

This class generates FormularyDrug resources for a particular plan

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(plan) ⇒ DrugListGenerator

Returns a new instance of DrugListGenerator.



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# File 'lib/formulary/drug_list_generator.rb', line 18

def initialize(plan)
  @plan = plan
end

Instance Attribute Details

#plan ⇒ Object (readonly)

Returns the value of attribute plan.



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# File 'lib/formulary/drug_list_generator.rb', line 16

def plan
  @plan
end

Instance Method Details

#add_to_list(id) ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 93

def add_to_list(id)
  list << {
    item: {
      reference: "MedicationKnowledge/#{id}",
    },
  }
end

#base_output_directory ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 39

def base_output_directory
  "output"
end

#count ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 43

def count
  @count ||= 1
end

#create_drug(drug) ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 63

def create_drug(drug)
  plan_drug = QHPPlanDrug.new(drug, plan)
  id = "#{id_prefix}-#{count.to_s.rjust(5, "0")}" # if the right of the = is not called, it causes the program to crash
  id = plan_drug.rxnorm_code
  write_resource(FormularyDrugFactory.new(plan_drug).build(plan_drug.rxnorm_code))

  add_to_list(id)

  write_resource(FormularyItemFactory.new(plan, plan_drug).build)
end

#generate ⇒ Object 



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# File 'lib/formulary/drug_list_generator.rb', line 22

def generate
  plan_drugs.each do |drug|
    create_drug(drug)
    increment_id
  end
  return if list.empty?

  write_payer_insurance_plan
  write_formulary
end

#id_prefix ⇒ Object 



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# File 'lib/formulary/drug_list_generator.rb', line 33

def id_prefix
  @id_prefix ||= ::Digest::SHA1.hexdigest(plan.id)[0..5]
end

#increment_id ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 47

def increment_id
  @count += 1
end

#list ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 51

def list
  @list ||= []
end

#plan_drugs ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 55

def plan_drugs
  @plan_drugs ||=
    QHPDrugRepo
      .drugs_for_plan(plan)
      .uniq(&:rxnorm_code)
      .take(Config.max_drugs_per_plan)
end

#write_formulary ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 78

def write_formulary
  write_resource(FormularyFactory.new(plan).build)
end

#write_payer_insurance_plan ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 74

def write_payer_insurance_plan
  write_resource(PayerInsurancePlanFactory.new(plan).build)
end

#write_resource(resource) ⇒ Object (private) 



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# File 'lib/formulary/drug_list_generator.rb', line 82

def write_resource(resource)
  output_directory = File.join(base_output_directory, resource.resourceType)

  FileUtils.mkdir_p output_directory
  file_path = File.join(output_directory, "#{resource.id}.#{resource.resourceType}.json")

  File.open(file_path, "w") do |file|
    file.write(resource.to_json)
  end
end