// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962

#include <stdio.h>

#include <maya/MArgDatabase.h>
#include <maya/MArgList.h>
#include <maya/MDagPath.h>
#include <maya/MFnDependencyNode.h>
#include <maya/MString.h>
#include <maya/MSyntax.h>

#include "shaveHairShape.h"
#include "shaveSDK.h"
#include "shaveUtil.h"
#include "shaveWriteHairCmd.h"

const MString shaveWriteHairCmd::commandName = "shaveWriteHair";


MSyntax shaveWriteHairCmd::createSyntax()
{
	MSyntax	syntax;

	syntax.enableEdit(false);
	syntax.enableQuery(false);
	syntax.addArg(MSyntax::kString);

	return syntax;
}


MStatus shaveWriteHairCmd::doIt(const MArgList& args)
{
	MStatus			st;
	MArgDatabase	argdb(syntax(), args, &st);

	if (!st) return st;

	MDagPath		hairShape = shaveUtil::getCurrentHairShape();

	if (!hairShape.isValid())
	{
		MGlobal::displayError(
			commandName + ": no currently selected shave node."
		);
		return MS::kFailure;
	}

	MString	fileName;
	argdb.getCommandArgument(0, fileName);

	FILE*	f = fopen(fileName.asChar(), "w");

	if (!f)
	{
		MGlobal::displayError(
			commandName + ": cannot write to file '" + fileName + "'."
		);
		return MS::kInvalidParameter;
	}

	fclose(f);

	MFnDependencyNode	nodeFn(hairShape.node());

	shaveHairShape*	shs = (shaveHairShape*)nodeFn.userNode();
	SHAVEwrite_hairDISK((char*)fileName.asChar(), shs->getHairNode());

	return st;
}