/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
---------------------------------------------------------------------------

Copyright (c) 2006-2020, assimp team



All rights reserved.

Redistribution and use of this software in source and binary forms, 
with or without modification, are permitted provided that the following 
conditions are met:

* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
  materials provided with the distribution.

* Neither the name of the assimp team, nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  written permission of the assimp team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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*/

/** @file  WriteDump.cpp
 *  @brief Implementation of the 'assimp dump' utility
 */

#include "Main.h"
#include "PostProcessing/ProcessHelper.h"

const char* AICMD_MSG_DUMP_HELP = 
"assimp dump <model> [<out>] [-b] [-s] [-z] [common parameters]\n"
"\t -b Binary output \n"
"\t -s Shortened  \n"
"\t -z Compressed  \n"
"\t[See the assimp_cmd docs for a full list of all common parameters]  \n"
"\t -cfast    Fast post processing preset, runs just a few important steps \n"
"\t -cdefault Default post processing: runs all recommended steps\n"
"\t -cfull    Fires almost all post processing steps \n"
;

#include "Common/assbin_chunks.h"
#include <assimp/DefaultIOSystem.h>
#include <code/Assbin/AssbinFileWriter.h>
#include <code/Assxml/AssxmlFileWriter.h>

#include <memory>

FILE* out = NULL;
bool shortened = false;

// -------------------------------------------------------------------------------
const char* TextureTypeToString(aiTextureType in)
{
	switch (in)
	{
	case aiTextureType_NONE:
		return "n/a";
	case aiTextureType_DIFFUSE:
		return "Diffuse";
	case aiTextureType_SPECULAR:
		return "Specular";
	case aiTextureType_AMBIENT:
		return "Ambient";
	case aiTextureType_EMISSIVE:
		return "Emissive";
	case aiTextureType_OPACITY:
		return "Opacity";
	case aiTextureType_NORMALS:
		return "Normals";
	case aiTextureType_HEIGHT:
		return "Height";
	case aiTextureType_SHININESS:
		return "Shininess";
	case aiTextureType_DISPLACEMENT:
		return "Displacement";
	case aiTextureType_LIGHTMAP:
		return "Lightmap";
	case aiTextureType_REFLECTION:
		return "Reflection";
	case aiTextureType_UNKNOWN:
		return "Unknown";
	default:
		break;
	}
	ai_assert(false); 
	return  "BUG";    
}

// -----------------------------------------------------------------------------------
int Assimp_Dump (const char* const* params, unsigned int num)
{
	const char* fail = "assimp dump: Invalid number of arguments. "
			"See \'assimp dump --help\'\r\n";

	// --help
	if (!strcmp( params[0], "-h") || !strcmp( params[0], "--help") || !strcmp( params[0], "-?") ) {
		printf("%s",AICMD_MSG_DUMP_HELP);
		return AssimpCmdError::Success;
	}

	// asssimp dump in out [options]
	if (num < 1) {
		printf("%s", fail);
		return AssimpCmdError::InvalidNumberOfArguments;
	}

	std::string in  = std::string(params[0]);
	std::string out = (num > 1 ? std::string(params[1]) : std::string("-"));

	// store full command line
	std::string cmd;
	for (unsigned int i = (out[0] == '-' ? 1 : 2); i < num;++i)	{
		if (!params[i])continue;
		cmd.append(params[i]);
		cmd.append(" ");
	}

	// get import flags
	ImportData import;
	ProcessStandardArguments(import,params+1,num-1);

	bool binary = false, shortened = false,compressed=false;
	
	// process other flags
	for (unsigned int i = 1; i < num;++i)		{
		if (!params[i])continue;
		if (!strcmp( params[i], "-b") || !strcmp( params[i], "--binary")) {
			binary = true;
		}
		else if (!strcmp( params[i], "-s") || !strcmp( params[i], "--short")) {
			shortened = true;
		}
		else if (!strcmp( params[i], "-z") || !strcmp( params[i], "--compressed")) {
			compressed = true;
		}
#if 0
		else if (i > 2 || params[i][0] == '-') {
			::printf("Unknown parameter: %s\n",params[i]);
			return 10;
		}
#endif
	}

	if (out[0] == '-') {
		// take file name from input file
		std::string::size_type s = in.find_last_of('.');
		if (s == std::string::npos) {
			s = in.length();
		}

		out = in.substr(0,s);
		out.append((binary ? ".assbin" : ".assxml"));
		if (shortened && binary) {
			out.append(".regress");
		}
	}

	// import the main model
	const aiScene* scene = ImportModel(import,in);
	if (!scene) {
		printf("assimp dump: Unable to load input file %s\n",in.c_str());
		return AssimpCmdError::FailedToLoadInputFile;
	}

	try {
		// Dump the main model, using the appropriate method.
		std::unique_ptr<IOSystem> pIOSystem(new DefaultIOSystem());
		if (binary) {
			DumpSceneToAssbin(out.c_str(), cmd.c_str(), pIOSystem.get(),
				scene, shortened, compressed);
		}
		else {
			DumpSceneToAssxml(out.c_str(), cmd.c_str(), pIOSystem.get(),
				scene, shortened);
		}
	}
	catch (const std::exception& e) {
		printf("%s", ("assimp dump: " + std::string(e.what())).c_str());
		return AssimpCmdError::ExceptionWasRaised;
	}
	catch (...) {
		printf("assimp dump: An unknown exception occured.\n");
		return AssimpCmdError::ExceptionWasRaised;
	}

	printf("assimp dump: Wrote output dump %s\n",out.c_str());
	return AssimpCmdError::Success;
}