package nodebox;

import nodebox.function.FunctionRepository;

import nodebox.graphics.Rect;

import nodebox.graphics.SVGRenderer;

import nodebox.node.*;

import java.awt.geom.Rectangle2D;

import java.io.File;

import java.util.List;

/**

* Headless batch renderer: loads .ndbx files and exports to SVG.

* Used for golden master testing (Java vs Rust comparison).

*

* Usage: java -cp ... nodebox.BatchRenderer <input.ndbx> <output.svg>

*

* Or to render all examples:

* java -cp ... nodebox.BatchRenderer --all <outputDir>

*/

public class BatchRenderer {

public static void main(String[] args) {

if (args.length < 2) {

System.out.println("Usage: java -cp ... nodebox.BatchRenderer <input.ndbx> <output.svg>");

System.out.println(" java -cp ... nodebox.BatchRenderer --all <outputDir>");

System.exit(-1);

}

if (args[0].equals("--all")) {

renderAll(new File(args[1]));

} else {

renderOne(new File(args[0]), new File(args[1]));

}

}

private static NodeRepository loadSystemRepository() {

return NodeBox.getSystemRepository("libraries");

}

private static void renderOne(File inFile, File outFile) {

NodeRepository systemRepository = loadSystemRepository();

try {

NodeLibrary library = loadLibrary(inFile, systemRepository);

FunctionRepository functionRepository = FunctionRepository.combine(

systemRepository.getFunctionRepository(),

library.getFunctionRepository()

);

NodeContext ctx = new NodeContext(library, functionRepository);

List<?> result = ctx.renderNode("/");

Rect bounds = library.getBounds();

Rectangle2D rect = new Rectangle2D.Double(

bounds.getX(), bounds.getY(),

bounds.getWidth(), bounds.getHeight()

);

outFile.getParentFile().mkdirs();

SVGRenderer.renderToFile(result, rect, outFile);

System.out.println("OK " + inFile.getName());

} catch (Exception e) {

System.err.println("FAIL " + inFile.getName() + ": " + e.getMessage());

}

}

private static NodeLibrary loadLibrary(File inFile, NodeRepository systemRepository) {

try {

return NodeLibrary.load(inFile, systemRepository);

} catch (OutdatedLibraryException e) {

UpgradeResult result = NodeLibraryUpgrades.upgrade(inFile);

return result.getLibrary(inFile, systemRepository);

}

}

private static void renderAll(File outputDir) {

File examplesDir = new File("examples");

if (!examplesDir.exists()) {

System.err.println("Cannot find examples/ directory. Run from the project root.");

System.exit(-1);

}

outputDir.mkdirs();

renderDirectory(examplesDir, examplesDir, outputDir);

}

private static void renderDirectory(File dir, File baseDir, File outputDir) {

File[] files = dir.listFiles();

if (files == null) return;

for (File f : files) {

if (f.isDirectory()) {

renderDirectory(f, baseDir, outputDir);

} else if (f.getName().endsWith(".ndbx")) {

String relativePath = baseDir.toPath().relativize(f.toPath()).toString();

String svgName = relativePath.replaceAll("\\.ndbx$", ".svg");

File outFile = new File(outputDir, svgName);

renderOne(f, outFile);

}

}

}

}