import * as cdk from 'aws-cdk-lib';
import * as ec2 from 'aws-cdk-lib/aws-ec2';
import { Construct } from 'constructs';
// TODO: Add a VPC stack that can be used by all other stacks
export class VpcStack extends cdk.Stack {
  public readonly vpc: ec2.Vpc;

  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // Create VPC
    this.vpc = new ec2.Vpc(this, 'BonusAppVpc', {
      maxAzs: 2,
      natGateways: 2,
      subnetConfiguration: [
        {
          name: 'Public',
          subnetType: ec2.SubnetType.PUBLIC,
          cidrMask: 24,
        },
        {
          name: 'Private',
          subnetType: ec2.SubnetType.PRIVATE_WITH_EGRESS,
          cidrMask: 24,
        },
      ],
    });

    // Let CloudFormation use the exact same resource names as before
    // No need to override logical ID as we're using the exact same name 'BonusAppVpc'
    // that will generate 'BonusAppVpcC5D8AE3E' in CloudFormation

    // Add outputs
    new cdk.CfnOutput(this, 'VpcId', {
      value: this.vpc.vpcId,
      description: 'The ID of the VPC',
      exportName: `${this.stackName}-VpcId`,
    });

    new cdk.CfnOutput(this, 'PublicSubnets', {
      value: this.vpc.publicSubnets.map(subnet => subnet.subnetId).join(','),
      description: 'The IDs of the public subnets',
      exportName: `${this.stackName}-PublicSubnets`,
    });

    new cdk.CfnOutput(this, 'PrivateSubnets', {
      value: this.vpc.privateSubnets.map(subnet => subnet.subnetId).join(','),
      description: 'The IDs of the private subnets',
      exportName: `${this.stackName}-PrivateSubnets`,
    });
  }
}