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

#include <maya/MArgDatabase.h>
#include <maya/MArgList.h>
#include <maya/MGlobal.h>
#include <maya/MPxCommand.h>
#include <maya/MSelectionList.h>
#include <maya/MSyntax.h>
#include <maya/MString.h>

#include "shaveGlobals.h"
#include "shaveHairShape.h"
#include "shaveInfo.h"
#include "shaveNode.h"
#include "shaveSDK.h"

static const char*	defaultGlobalsFlagShort	= "-dg";
static const char*	defaultGlobalsFlagLong	= "-defaultGlobals";
static const char*	globalsFlagShort		= "-g";
static const char*	globalsFlagLong			= "-globals";
static const char*	globalsVersionFlagShort	= "-gv";
static const char*	globalsVersionFlagLong	= "-globalsVersion";
static const char*	quietFlagShort			= "-qt";
static const char*	quietFlagLong			= "-quiet";
static const char*	shaveHairVersionFlagShort	= "-shv";
static const char*	shaveHairVersionFlagLong	= "-shaveHairVersion";
static const char*	shaveNodeVersionFlagShort	= "-snv";
static const char*	shaveNodeVersionFlagLong	= "-shaveNodeVersion";
static const char*	statDirFlagShort		= "-sd";
static const char*	statDirFlagLong			= "-statDir";
static const char*	versionFlagShort		= "-v";
static const char*	versionFlagLong			= "-version";


const MString shaveInfo::commandName("shaveInfo");


shaveInfo::shaveInfo()	{}
shaveInfo::~shaveInfo()	{}


void* shaveInfo::createCmd()
{
	return new shaveInfo();
}


MSyntax shaveInfo::createSyntax()
{
	MSyntax	syntax;

	syntax.enableEdit(false);
	syntax.enableQuery(false);

	syntax.addFlag(defaultGlobalsFlagShort, defaultGlobalsFlagLong);
	syntax.addFlag(globalsFlagShort, globalsFlagLong, MSyntax::kSelectionItem);
	syntax.addFlag(globalsVersionFlagShort, globalsVersionFlagLong);
	syntax.addFlag(quietFlagShort, quietFlagLong);
	syntax.addFlag(shaveHairVersionFlagShort, shaveHairVersionFlagLong);
	syntax.addFlag(shaveNodeVersionFlagShort, shaveNodeVersionFlagLong);
	syntax.addFlag(statDirFlagShort, statDirFlagLong);
	syntax.addFlag(versionFlagShort, versionFlagLong);

	return syntax;
}


MStatus shaveInfo::doIt(const MArgList& argList)
{
	MStatus 		status;
	MArgDatabase	args(syntax(), argList, &status);

	if (!status) return status;

	if (args.isFlagSet(globalsVersionFlagShort))
	{
		setResult(shaveGlobals::kNodeVersion);
	}
	else if (args.isFlagSet(shaveHairVersionFlagShort))
	{
		setResult(shaveHairShape::kNodeVersion);
	}
	else if (args.isFlagSet(shaveNodeVersionFlagShort))
	{
		setResult(shaveNode::kNodeVersion);
	}
	else if (args.isFlagSet(versionFlagShort))
	{
		setResult(SHAVEquery_version());
	}
	else if (args.isFlagSet(statDirFlagShort))
	{
		MString	shaveStatDir;
		MGlobal::executeCommand("shaveGetStatDir", shaveStatDir);
		setResult(shaveStatDir);
	}
	else if (args.isFlagSet(globalsFlagShort))
	{
		//
		// Get the specified node.
		//
		MSelectionList	selection;

		args.getFlagArgument(globalsFlagShort, 0, selection);

		MObject	node(MObject::kNullObj);

		if (!selection.isEmpty()) selection.getDependNode(0, node);

		MFnDependencyNode	nodeFn(node, &status);

		//
		// Make sure that it's a valid shaveGlobals node.
		//
		if (node.isNull()
		||	!status
		||	(nodeFn.typeId() != shaveGlobals::id))
		{
			status = MS::kInvalidParameter;

			if (!args.isFlagSet(quietFlagShort))
			{
				MGlobal::displayError(
					"The specified object is not a valid shaveGlobals node."
				);
			}
		}
		else
		{
			// dump attrs

			MGlobal::displayWarning(
				"Sorry, this function is not yet supported."
			);
		}
	}
	else if (args.isFlagSet(defaultGlobalsFlagShort))
	{
		MSelectionList	list;
		list.add(shaveGlobals::defaultNodeName);

		MObject			node(MObject::kNullObj);
		list.getDependNode(0, node);

		MFnDependencyNode	nodeFn(node, &status);

		if (node.isNull() || !status || (nodeFn.typeId() != shaveGlobals::id))
		{
			if (!args.isFlagSet(quietFlagShort))
			{
				MGlobal::displayError(
					"There is no default shaveGlobals node in the scene."
				);
			}

			status = MS::kFailure;
		}
		else
		{
			// dump attrs

			MGlobal::displayWarning(
				"Sorry, this function is not yet supported."
			);
		}
	}

	return status;
}