import software.amazon.awscdk.*;
import software.amazon.awscdk.services.certificatemanager.Certificate;
import software.amazon.awscdk.services.route53.IPublicHostedZone;
import software.amazon.awscdk.services.route53.PublicHostedZone;
import software.amazon.awscdk.services.route53.PublicHostedZoneAttributes;
import software.constructs.Construct;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.nio.file.Path;

import static software.amazon.awscdk.Fn.*;
import static software.amazon.awscdk.services.certificatemanager.CertificateValidation.fromDns;

public class CertificateProblem {

    public static void main(String[] args) throws FileNotFoundException {
        App app = new App();

        new SimpleStack(app, "SimpleStack", StackProps.builder().build());

        app.synth();

        File file = Path.of(app.getOutdir(), "SimpleStack.template.json").toFile();
        System.out.println(file.getAbsoluteFile());
        new BufferedReader(new FileReader(file)).lines().forEach(System.out::println);
    }
}

class SimpleStack extends Stack {

    public SimpleStack(final Construct scope, final String id, final StackProps props) {
        super(scope, id, props);

        String myappDomain = "myapp.cloud";

        String subdomain = CfnParameter.Builder.create(this, "subdomain")
                .type("String")
                .description(
                        "The subdomain of the environment (e.g. 'dev', 'qa'). Leave empty/blank for no " +
                                "subdomain (i.e. our live environment)."
                        )
                .build()
                .getValueAsString();

        CfnCondition hasSubdomain = CfnCondition.Builder.create(this, "hasSubdomain")
                .expression(conditionNot(conditionEquals(subdomain, "")))
                .build();

        ICfnRuleConditionExpression qualifiedDomain =
                conditionIf(hasSubdomain.getLogicalId(), subdomain + myappDomain, myappDomain);

        IPublicHostedZone zone = PublicHostedZone.fromPublicHostedZoneAttributes(
                this,
                "myappDomain",
                PublicHostedZoneAttributes.builder()
                        .hostedZoneId("zoneid")
                        .zoneName("myappDomain")
                        .build()
                );

        Certificate.Builder.create(this, "somecert")
                .domainName("*." + qualifiedDomain)
                .validation(fromDns(zone))
                .build();
    }
}