AWSTemplateFormatVersion: '2010-09-09'
Description: Deploy EC2 instance using a specific AMI, configure a security group with ingress rules for SSH and port 3001, and create VPC and subnet.

Parameters:
  AMI:
    Type: String
    Default: ami-021141a79f4c8fc02  # Default to your AMI ID if needed
  InstanceType:
    Type: String
    Default: t3.large  # Default to t3.large
  VpcCidrBlock:
    Type: String
    Default: 10.0.0.0/16  # Default to a private network range
  SubnetCidrBlock:
    Type: String
    Default: 10.0.1.0/24  # Default to a smaller subnet range
  SecurityGroupName:
    Type: String
    Default: ShuffleSG

Resources:
  # Create the VPC
  VPC:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: !Ref VpcCidrBlock
      EnableDnsSupport: "true"
      EnableDnsHostnames: "true"
      Tags:
        - Key: Name
          Value: ShuffleVPC

  # Create the Subnet within the VPC
  Subnet:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: !Ref SubnetCidrBlock
      VpcId: !Ref VPC
      AvailabilityZone: !Select [ 0, !GetAZs '' ]
      MapPublicIpOnLaunch: "true"
      Tags:
        - Key: Name
          Value: ShuffleSubnet

  # Create the Security Group for the EC2 instance
  SecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupName: !Ref SecurityGroupName
      VpcId: !Ref VPC
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 22
          ToPort: 22
          CidrIp: 0.0.0.0/0  # Allow SSH from anywhere
        - IpProtocol: tcp
          FromPort: 3001
          ToPort: 3001
          CidrIp: 0.0.0.0/0  # Allow traffic on port 3001 from anywhere

  # Create an EC2 instance
  EC2Instance:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: !Ref AMI
      InstanceType: !Ref InstanceType
      NetworkInterfaces:
        - AssociatePublicIpAddress: true
          DeviceIndex: 0
          GroupSet:
            - !Ref SecurityGroup
          SubnetId: !Ref Subnet
      Tags:
        - Key: Name
          Value: Shuffle AMI Test Instance
      CpuOptions:
        CoreCount: 1
        ThreadsPerCore: 1
      PrivateDnsNameOptions:
        HostnameType: "ip-name"
        EnableResourceNameDnsARecord: true
        EnableResourceNameDnsAAAARecord: false

Outputs:
  InstanceId:
    Description: "Instance ID of the created EC2 instance"
    Value: !Ref EC2Instance
  PublicIP:
    Description: "Public IP address of the EC2 instance"
    Value: !GetAtt EC2Instance.PublicIp
  VPCId:
    Description: "VPC ID"
    Value: !Ref VPC
  SubnetId:
    Description: "Subnet ID"
    Value: !Ref Subnet
  SecurityGroupId:
    Description: "Security Group ID"
    Value: !Ref SecurityGroup