/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "pink/cel_decoder.h"
#include "pink/file.h"
#include "pink/pink.h"
#include "pink/resource_mgr.h"
#include "pink/sound.h"
#include "pink/objects/pages/game_page.h"

namespace Pink {

ResourceMgr::ResourceMgr()
		: _game(nullptr), _resDescTable(nullptr), _resCount(0) {}

ResourceMgr::~ResourceMgr() {
	clear();
}

void ResourceMgr::init(PinkEngine *game, Page *page) {
	OrbFile *orb = game->getOrb();
	_game = game;

	ObjectDescription *objDesc = orb->getObjDesc(page->getName().c_str());
	_resCount = objDesc->resourcesCount;
	orb->loadObject(page, objDesc);
	_resDescTable = orb->createResDescTable(objDesc);

	debugC(kPinkDebugLoadingResources, "%d Resource descriptions are loaded", _resCount);
}

void ResourceMgr::clear() {
	delete[] _resDescTable;
	_resDescTable = nullptr;
}

static int resDescComp(const void *a, const void *b) {
	return scumm_stricmp((const char *)a, (const char *)b);
}

Common::SeekableReadStream *ResourceMgr::getResourceStream(const Common::String &name) {
	Common::SeekableReadStream *stream;

	ResourceDescription *desc = (ResourceDescription *)bsearch(name.c_str(), _resDescTable, _resCount, sizeof(ResourceDescription), resDescComp);

	if (desc->inBro)
		stream = _game->getBro();
	else
		stream = _game->getOrb();

	stream->seek(desc->offset);

	byte *data = (byte *)malloc(desc->size);
	stream->read(data, desc->size);

	Common::MemoryReadStream *memstream = new Common::MemoryReadStream(data, desc->size, DisposeAfterUse::YES);

	debugC(kPinkDebugLoadingResources, "Got stream of %s resource", name.c_str());
	return memstream;
}

} // End of namespace Pink