sanger/sequencescape

# frozen_string_literal: true
module RetentionInstructionHelper
  # Return the retention instruction options for select
  def retention_instruction_option_for_select
    Labware.retention_instructions.keys.map { |option| [I18n.t("retention_instructions.#{option}"), option] }
  end

  # Find the retention instruction value based on the key
  def find_retention_instruction_from_key(key)
    value = I18n.t("retention_instructions.#{key}")
    return nil if value.include?('Translation missing:')
    value
  end

  # Retrieve the I18n key for a given value in the retention_instructions hash
  # NB: Might not be an ideal way to do this, but it works for now.
  def find_retention_instruction_key_for_value(value)
    I18n.t(:retention_instructions).each { |key, val| return key if val.casecmp(value).zero? }
    nil
  end

  # This function is used to find the retention instruction to display for a given labware
  # NB: The elsif statement in the function will not be necessary after the script in #4095 is run,.
  # After the script in #4095 is run, the elsif branch can be removed.
  def find_retention_instruction_to_display(labware)
    metadata = labware.metadata
    retention_instruction = labware.retention_instruction
    if retention_instruction.present?
      return retention_instruction
    elsif labware.custom_metadatum_collection.present? && metadata.key?('retention_instruction')
      return find_retention_instruction_key_for_value(metadata['retention_instruction'])
    end
    nil
  end
end