package org.xtext.gui.dm.generator.another;

import org.xtext.gui.dm.GuiDslRuntimeModule;
import org.xtext.gui.dm.GuiDslStandaloneSetup; 

import com.google.inject.Guice;
import com.google.inject.Injector;

public class AnotherInjector extends GuiDslStandaloneSetup{

	public Injector createInjector() {
		return Guice.createInjector(new AnotherRuntimeModule());
	}
	
	public class AnotherRuntimeModule extends GuiDslRuntimeModule {
		@Override
		public Class<? extends org.eclipse.xtext.generator.IGenerator> bindIGenerator() {
			return AnotherGenerator.class;
		}
	}	
}

public class JensBuilderParticipant extends BuilderParticipant {
	
	@Inject @Named("A") IGenerator genA;
	@Inject @Named("B") IGenerator genB;
	
	@Inject
	private IResourceServiceProvider resourceServiceProvider;
	
	@Override
	protected void handleChangedContents(Delta delta, IBuildContext context, EclipseResourceFileSystemAccess2 fileSystemAccess) throws CoreException {
		if (!resourceServiceProvider.canHandle(delta.getUri()))
			return;
		// TODO: we will run out of memory here if the number of deltas is large enough
		Resource resource = context.getResourceSet().getResource(delta.getUri(), true);
		if (shouldGenerate(resource, context)) {
			try {
				boolean a = true; //read from prefs or whatever
				boolean b = true; //read from prefs or whatever
				if (a) {
					genA.doGenerate(resource, fileSystemAccess);
				}
				if (b) {
					genB.doGenerate(resource, fileSystemAccess);
				}
				
			} catch (RuntimeException e) {
				if (e.getCause() instanceof CoreException) {
					throw (CoreException) e.getCause();
				}
				throw e;
			}
		}
	}


}

public class MyDslRuntimeModule extends org.xtext.example.mydsl.AbstractMyDslRuntimeModule {
	
	public void configureIGenerator(Binder binder) {
		binder.bind(IGenerator.class).annotatedWith(Names.named("A")).to(MyDslGenerator.class);
		binder.bind(IGenerator.class).annotatedWith(Names.named("B")).to(AnotherGenerator.class);
	}

}

public class MyDslUiModule extends org.xtext.example.mydsl.ui.AbstractMyDslUiModule {
	public MyDslUiModule(AbstractUIPlugin plugin) {
		super(plugin);
	}
	
	@Override
	public Class<? extends IXtextBuilderParticipant> bindIXtextBuilderParticipant() {
		return JensBuilderParticipant.class;
	}
}

public class StupidGenerator implements IGenerator {
	
	@Inject MyDslGenerator genA;
	@Inject AnotherGenerator genB;

	@Override
	public void doGenerate(Resource input, IFileSystemAccess fsa) {
		boolean a = true; //read from prefs or whatever
		boolean b = true; //read from prefs or whatever
		if (a) {
			genA.doGenerate(input, fsa);
		}
		if (b) {
			genB.doGenerate(input, fsa);
		}
		
	} 
	

}