AWSTemplateFormatVersion: '2010-09-09'
Description: AWS Cloud9 Environment

Parameters:
  Cloud9InstanceType:
    AllowedValues:
      - t2.medium
      - t2.large
      - t2.xlarge
      - t2.2xlarge
    Default: t2.medium
    Description: EC2 instance type on which IDE runs
    Type: String
  VolumeSize:
    Type: Number
    Description: The desired size of storage attached to the Cloud 9 instance
    Default: 15

Resources:
  Cloud9VolumeResize:
    Type: 'AWS::CloudFormation::CustomResource'
    Properties: 
      ServiceToken:
        Fn::ImportValue: CFNResizeCloud9Volume
      EnvironmentId: !Ref Cloud9Instance
      VolumeSize: !Ref VolumeSize
  Cloud9Instance:
    Type: 'AWS::Cloud9::EnvironmentEC2'
    Properties:
      AutomaticStopTimeMinutes: 30
      ConnectionType: CONNECT_SSH
      Description:
        Fn::Sub: '${Cloud9User.Id} Cloud9 IDE'
      InstanceType:
        Ref: Cloud9InstanceType
      Name:
        'Fn::Sub': '${Cloud9User.Id}-Cloud9-IDE'
      OwnerArn:
        'Fn::GetAtt':
          - Cloud9User
          - Arn
      SubnetId:
        'Fn::Select':
          - '0'
          - 'Fn::GetAtt':
              - Cloud9Subnets
              - Subnets
      ImageId: "amazonlinux-2-x86_64"
  GetCloud9Properties:
    Type: AWS::CloudFormation::CustomResource
    Version: 1
    Properties:
      EnvironmentId:
        Ref: Cloud9Instance
      ServiceToken:
        Fn::ImportValue: CFNGetCloud9Properties
      StackId:
        Ref: 'AWS::StackId'

  WaitForCloudTrailEvent:
    Type: 'AWS::CloudFormation::CustomResource'
    Properties:
      ServiceToken: !ImportValue CFNSleep
      SleepSeconds: 30
  Cloud9User:
    Type: AWS::CloudFormation::CustomResource
    Version: 1
    DependsOn: WaitForCloudTrailEvent
    Properties:
      ServiceToken:
        Fn::ImportValue: CFNGetStackCreator
      StackId:
        Ref: 'AWS::StackId'
  Cloud9Subnets:
    Type: 'AWS::CloudFormation::CustomResource'
    Version: 1
    Properties:
      ServiceToken:
        Fn::ImportValue: CFNGetSubnetsByTag
      Tags:
        - Key: Cloud9
          Value: "True"
      VpcId:
        Fn::Select:
          - 0
          - Fn::GetAtt:
              - Cloud9Vpc
              - VpcIds
  Cloud9Vpc:
    Type: 'AWS::CloudFormation::CustomResource'
    DependsOn: WaitForCloudTrailEvent
    Version: 1
    Properties:
      ServiceToken:
        Fn::ImportValue: CFNGetVpcsByTag
      Tags:
        - Key: Cloud9
          Value: "True"


Outputs:
  Cloud9URL:
    Description: Cloud9 Environment
    Value:
      'Fn::Join':
        - ''
        - - 'Fn::Sub': 'https://${AWS::Region}.console.aws.amazon.com/cloud9/ide/'
          - Ref: Cloud9Instance