/*
    * Portions of this software was developed by employees of the National Institute
    * of Standards and Technology (NIST), an agency of the Federal Government and is
    * being made available as a public service. Pursuant to title 17 United States
    * Code Section 105, works of NIST employees are not subject to copyright
    * protection in the United States. This software may be subject to foreign
    * copyright. Permission in the United States and in foreign countries, to the
    * extent that NIST may hold copyright, to use, copy, modify, create derivative
    * works, and distribute this software and its documentation without fee is hereby
   * granted on a non-exclusive basis, provided that this notice and disclaimer
   * of warranty appears in all copies.
   *
   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
   */
  
  package gov.nist.secauto.metaschema.databind.codegen;
  
  import gov.nist.secauto.metaschema.core.model.IModule;
  import gov.nist.secauto.metaschema.core.util.ObjectUtils;
  
  import java.io.IOException;
  import java.nio.file.Path;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.stream.Stream;
  
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  class ProductionImpl implements IProduction {
  
    @NonNull
    private final Map<IModule, IGeneratedModuleClass> moduleToProductionMap // NOPMD - immutable
        = new HashMap<>();
    @NonNull
    private final Map<String, IPackageProduction> packageNameToProductionMap // NOPMD - immutable
        = new HashMap<>();
  
    public void addModule(
        @NonNull IModule module,
        @NonNull IMetaschemaClassFactory classFactory,
        @NonNull Path targetDirectory) throws IOException {
      for (IModule importedModule : module.getImportedModules()) {
        assert importedModule != null;
        addModule(importedModule, classFactory, targetDirectory);
      }
  
      if (moduleToProductionMap.get(module) == null) {
        IGeneratedModuleClass metaschemaClass = classFactory.generateClass(module, targetDirectory);
        moduleToProductionMap.put(module, metaschemaClass);
      }
    }
  
    protected IPackageProduction addPackage(
        @NonNull PackageMetadata metadata,
        @NonNull IMetaschemaClassFactory classFactory,
        @NonNull Path targetDirectory)
        throws IOException {
      String javaPackage = metadata.getPackageName();
  
      IPackageProduction retval
          = new PackageProductionImpl(
              metadata,
              classFactory,
              targetDirectory);
      packageNameToProductionMap.put(javaPackage, retval);
      return retval;
    }
  
    @Override
    @SuppressWarnings("null")
    public Collection<IGeneratedModuleClass> getModuleProductions() {
      return Collections.unmodifiableCollection(moduleToProductionMap.values());
    }
  
    @SuppressWarnings("null")
    @NonNull
    protected Collection<IPackageProduction> getPackageProductions() {
      return Collections.unmodifiableCollection(packageNameToProductionMap.values());
    }
  
    @Override
    public IGeneratedModuleClass getModuleProduction(IModule module) {
      return moduleToProductionMap.get(module);
    }
  
    @Override
   public Stream<IGeneratedDefinitionClass> getGlobalDefinitionClassesAsStream() {
     return ObjectUtils.notNull(getModuleProductions().stream()
         .flatMap(metaschema -> metaschema.getGeneratedDefinitionClasses().stream()));
   }
 
   @Override
   public Stream<? extends IGeneratedClass> getGeneratedClasses() {
     return ObjectUtils.notNull(Stream.concat(
         // generated definitions and Metaschema module
         getModuleProductions().stream()
             .flatMap(module -> Stream.concat(
                 Stream.of(module),
                 module.getGeneratedDefinitionClasses().stream())),
         // generated package-info.java
         getPackageProductions().stream()
             .flatMap(javaPackage -> Stream.of(javaPackage.getGeneratedClass()))));
   }
 
 }