Module: ResourceGenerator::ClassMethods

Defined in:
lib/svrless/resource_generator.rb

Constant Summary collapse

DEFAULT_ACTIONS = 
%i[create show update destroy].freeze

Instance Method Summary collapse

Instance Method Details

#full_klass_name(klass) ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 25

def full_klass_name(klass)
  klass.to_s.camelize.pluralize
end

#generate_cloudformation(klasses:, actions:) ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 15

def generate_cloudformation(klasses:, actions:)
  output = File.open("template.yaml", "w")
  output << CloudFormation::MainGenerator.new(klasses: klasses, actions: actions).representation
  output.close
end

#generate_function_file(klass:, actions:) ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 35

def generate_function_file(klass:, actions:)
  Dir.mkdir("app") unless Dir.exist?("app")
  Dir.mkdir("app/functions") unless Dir.exist?("app/functions")
  unless Dir.exist?("app/functions/#{plural_klass_name(klass)}")
    Dir.mkdir("app/functions/#{plural_klass_name(klass)}")
  end
  FileUtils.touch("app/functions/#{plural_klass_name(klass)}/controller.rb")
  File.open("app/functions/#{plural_klass_name(klass)}/controller.rb", "w") do |f|
    f.write "require 'svrless_controller'"
    f.write "\n"
    f.write "\n"
    f.write "class #{full_klass_name(klass)} < SvrlessController"
    f.write "\n"
    actions.each_with_index do |method, index|
      f.write "  def self.#{method}(event:, context:)\n"
      f.write "    {\n"
      f.write "      statusCode: 200,\n"
      f.write "      body: { hello: 'world' }.to_json\n"
      f.write "    }\n"
      f.write "  end\n"
      f.write "\n" unless actions.size == index + 1
    end
    f.write  "end"
    f.write  "\n"
  end
end

#generate_function_files(klasses:, actions:) ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 29

def generate_function_files(klasses:, actions:)
  klasses.each do |klass|
    generate_function_file(klass: klass, actions: actions)
  end
end

#generate_svrless_controller ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 62

def generate_svrless_controller
  Dir.mkdir("app") unless Dir.exist?("app")
  Dir.mkdir("app/shared") unless Dir.exist?("app/shared")
  Dir.mkdir("app/shared/ruby") unless Dir.exist?("app/shared/ruby")
  Dir.mkdir("app/shared/ruby/lib") unless Dir.exist?("app/shared/ruby/lib")
  File.open("app/shared/ruby/lib/svrless_controller.rb", "w") do |f|
    f.write "class SvrlessController\n"
    f.write "  def self.router(event:, context:)\n"
    f.write "    case event['httpMethod']\n"
    f.write "    when 'GET'\n"
    f.write "      show(event: event, context: context)\n"
    f.write "    when 'POST'\n"
    f.write "      create(event: event, context: context)\n"
    f.write "    when 'DELETE'\n"
    f.write "      destroy(event: event, context: context)\n"
    f.write "    else\n"
    f.write "      update(event: event, context: context)\n"
    f.write "    end\n"
    f.write "  end\n"
    f.write "end\n"
  end
end

#plural_klass_name(klass) ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 21

def plural_klass_name(klass)
  klass.to_s.pluralize
end

#resources(*args) ⇒ Object 



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# File 'lib/svrless/resource_generator.rb', line 9

def resources(*args)
  generate_svrless_controller
  generate_cloudformation(klasses: args, actions: DEFAULT_ACTIONS)
  generate_function_files(klasses: args, actions: DEFAULT_ACTIONS)
end