package org.jtwig.render.node.renderer;
import org.jtwig.model.expression.Expression;
import org.jtwig.model.tree.ExtendsNode;
import org.jtwig.model.tree.Node;
import org.jtwig.render.RenderRequest;
import org.jtwig.render.RenderResourceRequest;
import org.jtwig.render.RenderResourceService;
import org.jtwig.render.expression.CalculateExpressionService;
import org.jtwig.render.node.RenderNodeService;
import org.jtwig.renderable.Renderable;
import org.jtwig.resource.ResourceService;
import org.jtwig.resource.exceptions.ResourceNotFoundException;
import org.jtwig.resource.metadata.ResourceMetadata;
import org.jtwig.resource.reference.ResourceReference;
import org.jtwig.value.WrappedCollection;
import static org.jtwig.util.ErrorMessageFormatter.errorMessage;
public class ExtendsNodeRender implements NodeRender<ExtendsNode> {
@Override
public Renderable render(RenderRequest renderRequest, ExtendsNode node) {
CalculateExpressionService calculateExpressionService = renderRequest.getEnvironment().getRenderEnvironment().getCalculateExpressionService();
RenderNodeService renderNodeService = renderRequest.getEnvironment().getRenderEnvironment().getRenderNodeService();
RenderResourceService renderResourceService = renderRequest.getEnvironment().getRenderEnvironment().getRenderResourceService();
ResourceService resourceService = renderRequest.getEnvironment().getResourceEnvironment().getResourceService();
Expression extendsExpression = node.getExtendsExpression();
Object objectPath = calculateExpressionService.calculate(renderRequest, extendsExpression);
String path = renderRequest.getEnvironment().getValueEnvironment().getStringConverter().convert(objectPath);
ResourceReference current = renderRequest.getRenderContext().getCurrent(ResourceReference.class);
ResourceReference newReference = resourceService.resolve(current, path);
ResourceMetadata resourceMetadata = resourceService.loadMetadata(newReference);
if (!resourceMetadata.exists()) {
throw new ResourceNotFoundException(errorMessage(node.getPosition(), String.format("Resource '%s' not found", newReference.getPath())));
} else {
for (Node subNode : node.getNodes()) {
renderNodeService.render(renderRequest, subNode);
}
return renderResourceService.render(renderRequest, new RenderResourceRequest(newReference, false, false, WrappedCollection.empty()));
}
}
}