// ===========================================================================
// Copyright 2018 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================
//
//
//  Description:
//      Functions called from "Subdiv Tessellate".
//

//
//  Procedure Name:
//      doSubdivCollapseArgList
//
//  Description:
//		This is the actual function that gets called from "Collapse Hierarchy" 
//      option box.
//
//  Input Arguments:
//	    $version: The version of this option box.  This is used to know how to 
//	              interpret the $args array.
//
//      history (args[0])
//      level (args[1])
//      orig object (args[2])
//
//  Return Value:
//      None.
//
//  Note:
//
global proc int doSubdivCollapseArgList( string $version, string $args[] )
{
	int $status = 0;

	if( size($args) < 3 ) {
		string $msg = (uiRes("m_doSubdivCollapseArgList.kWrongNumberOfArgs"));
		error($msg);
		return $status;
	}

	global int $gSelectSubdivSurface;

	// collapse all subd's
	string $list[] = `filterExpand -ex 1 -fp 1 -sm $gSelectSubdivSurface`; 
	int $len = size($list);

	if ($len == 0) {
		string $msg = (uiRes("m_doSubdivCollapseArgList.kSelectError"));
		error ($msg);
		return $status;
	}

	int $origObjectAction = $args[2]; 
	int $globalHist = $args[0];

	string $cmd = "subdCollapse";

	switch ($origObjectAction) {
	  case 1:
		// replace original object, forces history off, but delete
		// will take care of that...
		$cmd = $cmd + " -ch off ";
		break;

	  case 2:
		// hide original object, forces history on
		$cmd = $cmd + " -ch on ";
		if( !$globalHist ) {
			string $msg = (uiRes("m_doSubdivCollapseArgList.kHistoryWarning"));
			warning($msg);
		}
		break;

	  case 3:
	  default:
		// show original object, respects global construction history
		$cmd = $cmd + " -ch " + $globalHist + " ";
		break;
	}

	$cmd += (" -level " + $args[1] + " " );

	//  Convert each subdiv, one at a time so we can catch errors
	//
  	string $polyRes[];
	string $selList = "";

	for($i = 0; $i < $len; $i++) {
		$retVal = catch ($polyRes = evalEcho ($cmd + $list[$i]));

		// if there's no error, do post work and add results 
		if ($retVal != 1){
			switch ($origObjectAction){
			  case 1:
				evalEcho ("delete "  + $list[$i]);
				break;
			  case 2:
				evalEcho ("hide " + $list[$i]);	  
				break;
			  default:
				break;
			}

			for ($s in $polyRes) {
				$selList += ($s + " ");
			}
		}
	}

	if (size($selList) > 0){
  		$selList += ";";
		eval ("select -r " + $selList);
	}

	return $status;
}