module Fog
  module AWS
    class RDS
      class Real
        require 'fog/aws/parsers/rds/authorize_db_security_group_ingress'

        # authorizes a db security group ingress
        # http://docs.amazonwebservices.com/AmazonRDS/latest/APIReference/index.html?API_AuthorizeDBSecurityGroupIngress.html
        # ==== Parameters
        # * CIDRIP <~String> - The IP range to authorize
        # * DBSecurityGroupName <~String> - The name for the DB Security Group.
        # * EC2SecurityGroupName <~String> - Name of the EC2 Security Group to authorize.
        # * EC2SecurityGroupOwnerId <~String> - AWS Account Number of the owner of the security group specified in the EC2SecurityGroupName parameter. The AWS Access Key ID is not an acceptable value.
        # ==== Returns
        # * response<~Excon::Response>:
        #   * body<~Hash>:
        def authorize_db_security_group_ingress(name, opts={})
          unless opts.key?('CIDRIP') || ((opts.key?('EC2SecurityGroupName') || opts.key?('EC2SecurityGroupId')) && opts.key?('EC2SecurityGroupOwnerId'))
            raise ArgumentError, 'Must specify CIDRIP, or one of EC2SecurityGroupName or EC2SecurityGroupId, and EC2SecurityGroupOwnerId'
          end

          request({
            'Action'  => 'AuthorizeDBSecurityGroupIngress',
            :parser   => Fog::Parsers::AWS::RDS::AuthorizeDBSecurityGroupIngress.new,
            'DBSecurityGroupName' => name
          }.merge(opts))
        end
      end

      class Mock
        def authorize_db_security_group_ingress(name, opts = {})
          unless opts.key?('CIDRIP') || ((opts.key?('EC2SecurityGroupName') || opts.key?('EC2SecurityGroupId')) && opts.key?('EC2SecurityGroupOwnerId'))
            raise ArgumentError, 'Must specify CIDRIP, or one of EC2SecurityGroupName or EC2SecurityGroupId, and EC2SecurityGroupOwnerId'
          end

          if ec2_security_group_id = opts.delete("EC2SecurityGroupId")
            ec2_security_group = (Fog::AWS::Compute::Mock.data[self.region][self.aws_access_key_id][:security_groups] || {}).values.detect { |sg| sg['groupId'] == ec2_security_group_id }
            opts['EC2SecurityGroupName'] = ec2_security_group['groupName']
          end

          response = Excon::Response.new

          if sec_group = self.data[:security_groups][name]
            if opts.key?('CIDRIP')
              if sec_group['IPRanges'].find{|h| h['CIDRIP'] == opts['CIDRIP']}
                raise Fog::AWS::RDS::AuthorizationAlreadyExists.new("AuthorizationAlreadyExists => #{opts['CIDRIP']} is already defined")
              end
              sec_group['IPRanges'] << opts.merge({"Status" => 'authorizing'})
            else
              if sec_group['EC2SecurityGroups'].find{|h| h['EC2SecurityGroupName'] == opts['EC2SecurityGroupName'] || h['EC2SecurityGroupId'] == opts['EC2SecurityGroupId']}
                raise Fog::AWS::RDS::AuthorizationAlreadyExists.new("AuthorizationAlreadyExists => #{opts['EC2SecurityGroupName']} is already defined")
              end
              sec_group['EC2SecurityGroups'] << opts.merge({"Status" => 'authorizing'})
            end
            response.status = 200
            response.body = {
              "ResponseMetadata"=>{ "RequestId"=> Fog::AWS::Mock.request_id },
              'AuthorizeDBSecurityGroupIngressResult' => {
                'DBSecurityGroup' => sec_group
              }
            }
            response
          else
            raise Fog::AWS::RDS::NotFound.new("DBSecurityGroupNotFound => #{name} not found")
          end
        end
      end
    end
  end
end
