package io.apicurio.registry.maven;
   
   import com.microsoft.kiota.ApiException;
   import io.apicurio.registry.client.RegistryClientFactory;
   import io.apicurio.registry.client.common.RegistryClientOptions;
   import io.apicurio.registry.rest.client.RegistryClient;
   import io.apicurio.registry.rest.client.models.ProblemDetails;
   import io.apicurio.registry.rest.client.models.RuleViolationProblemDetails;
   import io.apicurio.registry.types.ContentTypes;
  import io.vertx.core.Vertx;
  import io.vertx.core.VertxOptions;
  import io.vertx.core.file.FileSystemOptions;
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.annotations.Parameter;
  
  import java.util.Locale;
  import java.util.concurrent.ExecutionException;
  
  /**
   * Base class for all Registry Mojo's. It handles RegistryService's (aka client) lifecycle.
   */
  public abstract class AbstractRegistryMojo extends AbstractMojo {
  
      /**
       * The registry's url. e.g. http://localhost:8080/apis/registry/v3
       */
      @Parameter(required = true, property = "apicurio.url")
      String registryUrl;
  
      /**
       * The URL of the authentication server (if required).
       */
      @Parameter(property = "auth.server.url")
      String authServerUrl;
  
      /**
       * The client id to use when authenticating to the auth sever.
       */
      @Parameter(property = "client.id")
      String clientId;
  
      /**
       * The client secret to use when authenticating to the auth sever.
       */
      @Parameter(property = "client.secret")
      String clientSecret;
  
      /**
       * The client scope to use when authenticating to the auth sever.
       */
      @Parameter(property = "client.scope")
      String clientScope;
  
      /**
       * Authentication credentials: username
       */
      @Parameter(property = "username")
      String username;
  
      /**
       * Authentication credentials: password
       */
      @Parameter(property = "password")
      String password;
  
      /**
       * Path to the trust store file for SSL/TLS connections.
       * Supports JKS, PKCS12, and PEM formats. The format is auto-detected from the file extension
       * (.jks, .p12/.pfx, .pem/.crt/.cer) unless explicitly specified via trustStoreType.
       */
      @Parameter(property = "trustStorePath")
      String trustStorePath;
  
      /**
       * Password for the trust store (required for JKS and PKCS12 formats).
       */
      @Parameter(property = "trustStorePassword")
      String trustStorePassword;
  
      /**
       * Type of the trust store: JKS, PKCS12, or PEM. If not specified, the type is auto-detected
       * from the file extension.
       */
      @Parameter(property = "trustStoreType")
      String trustStoreType;
  
      /**
       * Path to the key store file for mutual TLS (mTLS) client authentication.
       * Supports JKS, PKCS12, and PEM formats. The format is auto-detected from the file extension
       * (.jks, .p12/.pfx, .pem/.crt/.cer) unless explicitly specified via keyStoreType.
       */
      @Parameter(property = "keyStorePath")
      String keyStorePath;
  
      /**
       * Password for the key store (required for JKS and PKCS12 formats).
       */
     @Parameter(property = "keyStorePassword")
     String keyStorePassword;
 
     /**
      * Type of the key store: JKS, PKCS12, or PEM. If not specified, the type is auto-detected
      * from the file extension.
      */
     @Parameter(property = "keyStoreType")
     String keyStoreType;
 
     /**
      * Path to the PEM private key file (required when using PEM format for mTLS and keyStorePath
      * points to the certificate file).
      */
     @Parameter(property = "keyStorePemKeyPath")
     String keyStorePemKeyPath;
 
     /**
      * If set to true, trust all SSL/TLS certificates without validation.
      * WARNING: This should only be used for development/testing purposes.
      */
     @Parameter(property = "trustAll", defaultValue = "false")
     boolean trustAll;
 
     /**
      * If set to false, disable hostname verification in SSL/TLS connections.
      * WARNING: Disabling this reduces security and should only be used for development/testing.
      */
     @Parameter(property = "verifyHostname", defaultValue = "true")
     boolean verifyHostname;
 
     protected Vertx createVertx() {
         var options = new VertxOptions();
         var fsOpts = new FileSystemOptions();
         fsOpts.setFileCachingEnabled(false);
         fsOpts.setClassPathResolvingEnabled(false);
         options.setFileSystemOptions(fsOpts);
         return Vertx.vertx(options);
     }
 
     protected RegistryClient createClient(Vertx vertx) {
         if (registryUrl == null || registryUrl.isEmpty()) {
             throw new IllegalArgumentException(
                     "Missing registry URL. Provide -Dapicurio.url=...");
         }
         RegistryClientOptions clientOptions = RegistryClientOptions.create(registryUrl, vertx);
 
         // Configure authentication
         if (authServerUrl != null && clientId != null && clientSecret != null) {
             if (clientScope != null && !clientScope.isEmpty()) {
                 getLog().info("Creating registry client with OAuth2 authentication with scope.");
                 clientOptions.oauth2(authServerUrl, clientId, clientSecret, clientScope);
             } else {
                 getLog().info("Creating registry client with OAuth2 authentication.");
                 clientOptions.oauth2(authServerUrl, clientId, clientSecret);
             }
         } else if (username != null && password != null) {
             getLog().info("Creating registry client with Basic authentication.");
             clientOptions.basicAuth(username, password);
         } else {
             getLog().info("Creating registry client without authentication.");
         }
 
         // Configure TLS/SSL trust store
         configureTrustStore(clientOptions);
 
         // Configure TLS/SSL key store for mTLS
         configureKeyStore(clientOptions);
 
         // Configure additional SSL options
         if (trustAll) {
             getLog().warn("TLS trust-all mode enabled. This is insecure and should only be used for development/testing.");
             clientOptions.trustAll(true);
         }
         if (!verifyHostname) {
             getLog().warn("Hostname verification disabled. This reduces security and should only be used for development/testing.");
             clientOptions.verifyHost(false);
         }
 
         return RegistryClientFactory.create(clientOptions.retry());
     }
 
     // Package-private for testing
     void configureTrustStore(RegistryClientOptions clientOptions) {
         if (trustStorePath == null || trustStorePath.isEmpty()) {
             return;
         }
 
         String detectedType = detectStoreType(trustStorePath, trustStoreType);
         getLog().info("Configuring trust store: " + trustStorePath + " (type: " + detectedType + ")");
 
         switch (detectedType.toUpperCase(Locale.ROOT)) {
             case "JKS":
                 clientOptions.trustStoreJks(trustStorePath, trustStorePassword);
                 break;
             case "PKCS12":
                 clientOptions.trustStorePkcs12(trustStorePath, trustStorePassword);
                 break;
             case "PEM":
                 clientOptions.trustStorePem(trustStorePath);
                 break;
             default:
                 getLog().warn("Unknown trust store type: " + detectedType + ". Attempting to use as PKCS12.");
                 clientOptions.trustStorePkcs12(trustStorePath, trustStorePassword);
         }
     }
 
     // Package-private for testing
     void configureKeyStore(RegistryClientOptions clientOptions) {
         if (keyStorePath == null || keyStorePath.isEmpty()) {
             return;
         }
 
         String detectedType = detectStoreType(keyStorePath, keyStoreType);
         getLog().info("Configuring key store for mTLS: " + keyStorePath + " (type: " + detectedType + ")");
 
         switch (detectedType.toUpperCase(Locale.ROOT)) {
             case "JKS":
                 clientOptions.keystoreJks(keyStorePath, keyStorePassword);
                 break;
             case "PKCS12":
                 clientOptions.keystorePkcs12(keyStorePath, keyStorePassword);
                 break;
             case "PEM":
                 if (keyStorePemKeyPath == null || keyStorePemKeyPath.isEmpty()) {
                     throw new IllegalArgumentException(
                             "keyStorePemKeyPath is required when using PEM format for mTLS. " +
                             "Set keyStorePath to the certificate file and keyStorePemKeyPath to the private key file.");
                 }
                 clientOptions.keystorePem(keyStorePath, keyStorePemKeyPath);
                 break;
             default:
                 getLog().warn("Unknown key store type: " + detectedType + ". Attempting to use as PKCS12.");
                 clientOptions.keystorePkcs12(keyStorePath, keyStorePassword);
         }
     }
 
     // Package-private for testing
     String detectStoreType(String path, String explicitType) {
         if (explicitType != null && !explicitType.isEmpty()) {
             return explicitType;
         }
         String lowerPath = path.toLowerCase(Locale.ROOT);
         if (lowerPath.endsWith(".jks")) {
             return "JKS";
         } else if (lowerPath.endsWith(".p12") || lowerPath.endsWith(".pfx")) {
             return "PKCS12";
         } else if (lowerPath.endsWith(".pem") || lowerPath.endsWith(".crt") || lowerPath.endsWith(".cer")) {
             return "PEM";
         }
         return "PKCS12"; // Default to PKCS12
     }
 
     @Override
     public void execute() throws MojoExecutionException, MojoFailureException {
         try {
             executeInternal();
         } catch (ExecutionException e) {
             throw new MojoExecutionException(e);
         } catch (InterruptedException e) {
             throw new MojoFailureException(e);
         }
         closeClients();
     }
 
     private void closeClients() {
         // TODO: check there are no connection leaks etc...
     }
 
     protected abstract void executeInternal()
             throws MojoExecutionException, MojoFailureException, ExecutionException, InterruptedException;
 
     protected String getContentTypeByExtension(String fileName) {
         if (fileName == null)
             return null;
         String[] temp = fileName.split("[.]");
         String extension = temp[temp.length - 1];
         switch (extension.toLowerCase(Locale.ROOT)) {
             case "avro":
             case "avsc":
             case "json":
                 return ContentTypes.APPLICATION_JSON;
             case "yml":
             case "yaml":
                 return ContentTypes.APPLICATION_YAML;
             case "graphql":
                 return ContentTypes.APPLICATION_GRAPHQL;
             case "proto":
                 return ContentTypes.APPLICATION_PROTOBUF;
             case "wsdl":
             case "xsd":
             case "xml":
                 return ContentTypes.APPLICATION_XML;
         }
         return null;
     }
 
     public void setRegistryUrl(String registryUrl) {
         this.registryUrl = registryUrl;
     }
 
     public void setAuthServerUrl(String authServerUrl) {
         this.authServerUrl = authServerUrl;
     }
 
     public void setClientId(String clientId) {
         this.clientId = clientId;
     }
 
     public void setClientSecret(String clientSecret) {
         this.clientSecret = clientSecret;
     }
 
     public void setClientScope(String clientScope) {
         this.clientScope = clientScope;
     }
 
     public void setUsername(String username) {
         this.username = username;
     }
 
     public void setPassword(String password) {
         this.password = password;
     }
 
     public void setTrustStorePath(String trustStorePath) {
         this.trustStorePath = trustStorePath;
     }
 
     public void setTrustStorePassword(String trustStorePassword) {
         this.trustStorePassword = trustStorePassword;
     }
 
     public void setTrustStoreType(String trustStoreType) {
         this.trustStoreType = trustStoreType;
     }
 
     public void setKeyStorePath(String keyStorePath) {
         this.keyStorePath = keyStorePath;
     }
 
     public void setKeyStorePassword(String keyStorePassword) {
         this.keyStorePassword = keyStorePassword;
     }
 
     public void setKeyStoreType(String keyStoreType) {
         this.keyStoreType = keyStoreType;
     }
 
     public void setKeyStorePemKeyPath(String keyStorePemKeyPath) {
         this.keyStorePemKeyPath = keyStorePemKeyPath;
     }
 
     public void setTrustAll(boolean trustAll) {
         this.trustAll = trustAll;
     }
 
     public void setVerifyHostname(boolean verifyHostname) {
         this.verifyHostname = verifyHostname;
     }
 
     protected void logAndThrow(ApiException e) throws MojoExecutionException, MojoFailureException {
         if (e instanceof RuleViolationProblemDetails) {
             logAndThrow((RuleViolationProblemDetails) e);
         }
         if (e instanceof ProblemDetails) {
             logAndThrow((ProblemDetails) e);
         }
     }
 
     protected void logAndThrow(ProblemDetails e) throws MojoExecutionException {
         getLog().error("---");
         getLog().error("Error registering artifact: " + e.getName());
         getLog().error(e.getTitle());
         getLog().error(e.getDetail());
         getLog().error("---");
         throw new MojoExecutionException("Error registering artifact: " + e.getName(), e);
     }
 
     protected void logAndThrow(RuleViolationProblemDetails e) throws MojoFailureException {
         getLog().error("---");
         getLog().error("Registry rule validation failure: " + e.getName());
         getLog().error(e.getTitle());
         if (e.getCauses() != null) {
             e.getCauses().forEach(cause -> {
                 getLog().error("\t-> " + cause.getContext());
                 getLog().error("\t   " + cause.getDescription());
             });
         }
         getLog().error("---");
         throw new MojoFailureException("Registry rule validation failure: " + e.getName(), e);
     }
 
 }