Initial commit

app/models/blank_contract.rb

@@ -0,0 +1,68 @@
+# frozen_string_literal: true
+
+class BlankContract
+  def initialize(releasable, copies = 1)
+    @releasable = releasable
+    integer_number_of_copies = copies.to_i
+    @copies = integer_number_of_copies.positive? ? integer_number_of_copies : 1
+  end
+
+  def to_pdf
+    kit = PDFKit.new(as_html)
+    kit.to_file("tmp/#{filename}")
+  end
+
+  def filename
+    "blank_#{contract_template.release_type}_release.pdf"
+  end
+
+  def render_attributes
+    attributes = {
+      layout: 'contract_pdf',
+      template: 'blank_contracts/pdf',
+      locals: { releasable: @releasable, contract_template: contract_template, copies: @copies }
+    }
+    add_logo_to_attributes attributes
+    add_codes_to_attributes attributes
+    attributes
+  end
+
+  private
+
+  def contract_template
+    @releasable.contract_template
+  end
+
+  def project
+    @releasable.project
+  end
+
+  def locale
+    @releasable.locale
+  end
+
+  def as_html
+    I18n.with_locale(locale) do
+      ApplicationController.render render_attributes
+    end
+  end
+
+  def add_logo_to_attributes(attributes)
+    logo = @releasable.project.account.logo
+    attributes[:locals][:logo] = logo if logo.attached?
+  end
+
+  def add_codes_to_attributes(attributes)
+    attributes[:locals][:qr_codes] = []
+    attributes[:locals][:serial_numbers] = []
+
+    @copies.times do
+      random_number = SecureRandom.hex 4
+      custom_url = "#{contract_template.to_global_id.to_s}/#{random_number}"
+      qr_code = QrCode.new(custom_url)
+
+      attributes[:locals][:qr_codes] << qr_code.to_base64_png
+      attributes[:locals][:serial_numbers] << random_number.to_s
+    end
+  end
+end