Module: Scorpio::Google::RestDescription

Defined in:
lib/scorpio/google_api_document.rb,
lib/scorpio/google_api_document.rb

Constant Summary collapse

Resources = 
properties['resources']

Instance Method Summary collapse

Instance Method Details

#to_openapi_document(options = {}) ⇒ Object 



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# File 'lib/scorpio/google_api_document.rb', line 46

def to_openapi_document(options = {})
  Scorpio::OpenAPI::Document.from_instance(to_openapi_hash(options))
end

#to_openapi_hash(options = {}) ⇒ Object 



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# File 'lib/scorpio/google_api_document.rb', line 50

def to_openapi_hash(options = {})
  # we will be modifying the api document (RestDescription). clone self and modify that one.
  ad = self.class.new(JSI::Typelike.as_json(self))
  ad_methods = []
  if ad['methods']
    ad_methods += ad['methods'].map do |mn, m|
      m.tap do
        m.send(:define_singleton_method, :resource_name) { }
        m.send(:define_singleton_method, :method_name) { mn }
      end
    end
  end
  ad_methods += ad.resources.map do |rn, r|
    (r['methods'] || {}).map do |mn, m|
      m.tap do
        m.send(:define_singleton_method, :resource_name) { rn }
        m.send(:define_singleton_method, :method_name) { mn }
      end
    end
  end.inject([], &:+)

  paths = ad_methods.group_by { |m| m['path'] }.map do |path, path_methods|
    unless path =~ %r(\A/)
      path = '/' + path
    end
    operations = path_methods.group_by { |m| m['httpMethod'] }.map do |http_method, http_method_methods|
      if http_method_methods.size > 1
        #raise("http method #{http_method} at path #{path} not unique: #{http_method_methods.pretty_inspect}")
      end
      method = http_method_methods.first
      unused_path_params = Addressable::Template.new(path).variables
      {http_method.downcase => {}.tap do |operation|
        operation['tags'] = method.resource_name ? [method.resource_name] : []
        #operation['summary'] = 
        operation['description'] = method['description'] if method['description']
        #operation['externalDocs'] = 
        operation['operationId'] = method['id'] || (method.resource_name ? "#{method.resource_name}.#{method.method_name}" : method.method_name)
        #operation['produces'] = 
        #operation['consumes'] = 
        if method['parameters']
          operation['parameters'] = method['parameters'].map do |name, parameter|
            {}.tap do |op_param|
              op_param['description'] = parameter.description if parameter.description
              op_param['name'] = name
              op_param['in'] = if parameter.location
                parameter.location
              elsif unused_path_params.include?(name)
                'path'
              else
                'query'
              # unused: header, formdata, body
              end
              unused_path_params.delete(name) if op_param['in'] == 'path'
              op_param['required'] = parameter.key?('required') ? parameter['required'] : op_param['in'] == 'path' ? true : false
              op_param['type'] = parameter.type || 'string'
              op_param['format'] = parameter['format'] if parameter['format']
            end
          end
        end
        if unused_path_params.any?
          operation['parameters'] ||= []
          operation['parameters'] += unused_path_params.map do |param_name|
            {
              'name' => param_name,
              'in' => 'path',
              'required' => true,
              'type' => 'string',
            }
          end
        end
        if method['request']
          operation['parameters'] ||= []
          operation['parameters'] << {
            'name' => 'body',
            'in' => 'body',
            'required' => true,
            'schema' => method['request'],
          }
        end
        if method['response']
          operation['responses'] = {
            'default' => {
              'description' => 'default response',
              'schema' => method['response'],
            },
          }
        end
      end}
    end.inject({}, &:update)

    {path => operations}
  end.inject({}, &:update)

  openapi = {
    'swagger' => '2.0',
    'info' => { #/definitions/info
      'title' => ad.title || ad.name,
      'description' => ad.description,
      'version' => ad.version || '',
      #'termsOfService' => '',
      'contact' => {
        'name' => ad.ownerName,
        #'url' => 
        #'email' => '',
      }.reject { |_, v| v.nil? },
      #'license' => {
        #'name' => '',
        #'url' => '',
      #},
    },
    'host' => ad.rootUrl ? Addressable::URI.parse(ad.rootUrl).host : ad.baseUrl ? Addressable::URI.parse(ad.rootUrl).host : ad.name, # uhh ... got nothin' better 
    'basePath' => begin
      path = ad.servicePath || ad.basePath || (ad.baseUrl ? Addressable::URI.parse(ad.baseUrl).path : '/')
      path =~ %r(\A/) ? path : "/" + path
    end,
    'schemes' => ad.rootUrl ? [Addressable::URI.parse(ad.rootUrl).scheme] : ad.baseUrl ? [Addressable::URI.parse(ad.rootUrl).scheme] : [], #/definitions/schemesList
    'consumes' => ['application/json'], # we'll just make this assumption
    'produces' => ['application/json'],
    'paths' => paths, #/definitions/paths
  }
  if ad.schemas
    openapi['definitions'] = ad.schemas
    ad.schemas.each do |name, schema|
      openapi = JSI::Util.ycomb do |rec|
        proc do |object|
          if object.respond_to?(:to_hash)
            object.merge(object.map do |k, v|
              if k == '$ref' && (v == schema['id'] || v == "#/schemas/#{name}" || v == name)
                {k => "#/definitions/#{name}"}
              else
                JSI::Util.ycomb do |toopenapirec|
                  proc do |toopenapiobject|
                    toopenapiobject = toopenapiobject.to_openapi if toopenapiobject.respond_to?(:to_openapi)
                    if toopenapiobject.respond_to?(:to_hash)
                      toopenapiobject.map { |k2, v2| {toopenapirec.call(k2) => toopenapirec.call(v2)} }.inject({}, &:update)
                    elsif toopenapiobject.respond_to?(:to_ary)
                      toopenapiobject.map(&toopenapirec)
                    elsif toopenapiobject.is_a?(Symbol)
                      toopenapiobject.to_s
                    elsif [String, TrueClass, FalseClass, NilClass, Numeric].any? { |c| toopenapiobject.is_a?(c) }
                      toopenapiobject
                    else
                      raise(TypeError, "bad (not jsonifiable) object: #{toopenapiobject.pretty_inspect}")
                    end
                  end
                end.call({k => rec.call(v)})
              end
            end.inject({}, &:merge))
          elsif object.respond_to?(:to_ary)
            object.map(&rec)
          else
            object
          end
        end
      end.call(openapi)
    end
  end
  JSI::Typelike.as_json(openapi)
end