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/*
Minetest-c55
Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef GUITEXTINPUTMENU_HEADER
#define GUITEXTINPUTMENU_HEADER

#include "irrlichttypes_extrabloated.h"
#include "modalMenu.h"
#include "guiFormSpecMenu.h"
#include <string>

class GUITextInputMenu : public GUIModalMenu
{
public:
	GUITextInputMenu(gui::IGUIEnvironment* env,
			gui::IGUIElement* parent, s32 id,
			IMenuManager *menumgr,
			TextDest *dest,
			std::wstring initial_text);
	~GUITextInputMenu();
	
	void removeChildren();
	/*
		Remove and re-add (or reposition) stuff
	*/
	void regenerateGui(v2u32 screensize);

	void drawMenu();

	void acceptInput();

	bool OnEvent(const SEvent& event);
	
private:
	TextDest *m_dest;
	std::wstring m_initial_text;
};

#endif

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "nodedef.h"

#include "main.h" // For g_settings
#include "itemdef.h"
#ifndef SERVER
#include "tile.h"
#endif
#include "log.h"
#include "settings.h"
#include "nameidmapping.h"
#include "util/serialize.h"
//#include "profiler.h" // For TimeTaker

/*
	NodeBox
*/

void NodeBox::reset()
{
	type = NODEBOX_REGULAR;
	// default is empty
	fixed.clear();
	// default is sign/ladder-like
	wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
	wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
	wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
}

void NodeBox::serialize(std::ostream &os) const
{
	writeU8(os, 1); // version
	writeU8(os, type);

	if(type == NODEBOX_FIXED)
	{
		writeU16(os, fixed.size());
		for(std::vector<aabb3f>::const_iterator
				i = fixed.begin();
				i != fixed.end(); i++)
		{
			writeV3F1000(os, i->MinEdge);
			writeV3F1000(os, i->MaxEdge);
		}
	}
	else if(type == NODEBOX_WALLMOUNTED)
	{
		writeV3F1000(os, wall_top.MinEdge);
		writeV3F1000(os, wall_top.MaxEdge);
		writeV3F1000(os, wall_bottom.MinEdge);
		writeV3F1000(os, wall_bottom.MaxEdge);
		writeV3F1000(os, wall_side.MinEdge);
		writeV3F1000(os, wall_side.MaxEdge);
	}
}

void NodeBox::deSerialize(std::istream &is)
{
	int version = readU8(is);
	if(version != 1)
		throw SerializationError("unsupported NodeBox version");

	reset();

	type = (enum NodeBoxType)readU8(is);

	if(type == NODEBOX_FIXED)
	{
		u16 fixed_count = readU16(is);
		while(fixed_count--)
		{
			aabb3f box;
			box.MinEdge = readV3F1000(is);
			box.MaxEdge = readV3F1000(is);
			fixed.push_back(box);
		}
	}
	else if(type == NODEBOX_WALLMOUNTED)
	{
		wall_top.MinEdge = readV3F1000(is);
		wall_top.MaxEdge = readV3F1000(is);
		wall_bottom.MinEdge = readV3F1000(is);
		wall_bottom.MaxEdge = readV3F1000(is);
		wall_side.MinEdge = readV3F1000(is);
		wall_side.MaxEdge = readV3F1000(is);
	}
}

/*
	TileDef
*/

void TileDef::serialize(std::ostream &os, u16 protocol_version) const
{
	if(protocol_version >= 17)
		writeU8(os, 1); 
	else
		writeU8(os, 0);
	os<<serializeString(name);
	writeU8(os, animation.type);
	writeU16(os, animation.aspect_w);
	writeU16(os, animation.aspect_h);
	writeF1000(os, animation.length);
	if(protocol_version >= 17)
		writeU8(os, backface_culling);
}

void TileDef::deSerialize(std::istream &is)
{
	int version = readU8(is);
	name = deSerializeString(is);
	animation.type = (TileAnimationType)readU8(is);
	animation.aspect_w = readU16(is);
	animation.aspect_h = readU16(is);
	animation.length = readF1000(is);
	if(version >= 1)
		backface_culling = readU8(is);
}

/*
	SimpleSoundSpec serialization
*/

static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
		std::ostream &os)
{
	os<<serializeString(ss.name);
	writeF1000(os, ss.gain);
}
static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
{
	ss.name = deSerializeString(is);
	ss.gain = readF1000(is);
}

/*
	ContentFeatures
*/

ContentFeatures::ContentFeatures()
{
	reset();
}

ContentFeatures::~ContentFeatures()
{
}

void ContentFeatures::reset()
{
	/*
		Cached stuff
	*/
#ifndef SERVER
	solidness = 2;
	visual_solidness = 0;
	backface_culling = true;
#endif
	has_on_construct = false;
	has_on_destruct = false;
	has_after_destruct = false;
	/*
		Actual data

		NOTE: Most of this is always overridden by the default values given
		      in builtin.lua
	*/
	name = "";
	groups.clear();
	// Unknown nodes can be dug
	groups["dig_immediate"] = 2;
	drawtype = NDT_NORMAL;
	visual_scale = 1.0;
	for(u32 i=0; i<6; i++)
		tiledef[i] = TileDef();
	for(u16 j=0; j<CF_SPECIAL_COUNT; j++)
		tiledef_special[j] = TileDef();
	alpha = 255;
	post_effect_color = video::SColor(0, 0, 0, 0);
	param_type = CPT_NONE;
	param_type_2 = CPT2_NONE;
	is_ground_content = false;
	light_propagates = false;
	sunlight_propagates = false;
	walkable = true;
	pointable = true;
	diggable = true;
	climbable = false;
	buildable_to = false;
	rightclickable = true;
	liquid_type = LIQUID_NONE;
	liquid_alternative_flowing = "";
	liquid_alternative_source = "";
	liquid_viscosity = 0;
	liquid_renewable = true;
	light_source = 0;
	damage_per_second = 0;
	node_box = NodeBox();
	selection_box = NodeBox();
	legacy_facedir_simple = false;
	legacy_wallmounted = false;
	sound_footstep = SimpleSoundSpec();
	sound_dig = SimpleSoundSpec("__group");
	sound_dug = SimpleSoundSpec();
}

void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
{
	if(protocol_version < 14){
		serializeOld(os, protocol_version);
		return;
	}

	writeU8(os, 6); // version
	os<<serializeString(name);
	writeU16(os, groups.size());
	for(ItemGroupList::const_iterator
			i = groups.begin(); i != groups.end(); i++){
		os<<serializeString(i->first);
		writeS16(os, i->second);
	}
	writeU8(os, drawtype);
	writeF1000(os, visual_scale);
	writeU8(os, 6);
	for(u32 i=0; i<6; i++)
		tiledef[i].serialize(os, protocol_version);
	writeU8(os, CF_SPECIAL_COUNT);
	for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
		tiledef_special[i].serialize(os, protocol_version);
	}
	writeU8(os, alpha);
	writeU8(os, post_effect_color.getAlpha());
	writeU8(os, post_effect_color.getRed());
	writeU8(os, post_effect_color.getGreen());
	writeU8(os, post_effect_color.getBlue());
	writeU8(os, param_type);
	writeU8(os, param_type_2);
	writeU8(os, is_ground_content);
	writeU8(os, light_propagates);
	writeU8(os, sunlight_propagates);
	writeU8(os, walkable);
	writeU8(os, pointable);
	writeU8(os, diggable);
	writeU8(os, climbable);
	writeU8(os, buildable_to);
	os<<serializeString(""); // legacy: used to be metadata_name
	writeU8(os, liquid_type);
	os<<serializeString(liquid_alternative_flowing);
	os<<serializeString(liquid_alternative_source);
	writeU8(os, liquid_viscosity);
	writeU8(os, liquid_renewable);
	writeU8(os, light_source);
	writeU32(os, damage_per_second);
	node_box.serialize(os);
	selection_box.serialize(os);
	writeU8(os, legacy_facedir_simple);
	writeU8(os, legacy_wallmounted);
	serializeSimpleSoundSpec(sound_footstep, os);
	serializeSimpleSoundSpec(sound_dig, os);
	serializeSimpleSoundSpec(sound_dug, os);
	writeU8(os, rightclickable);
	// Stuff below should be moved to correct place in a version that otherwise changes
	// the protocol version
}

void ContentFeatures::deSerialize(std::istream &is)
{
	int version = readU8(is);
	if(version != 6){
		deSerializeOld(is, version);
		return;
	}

	name = deSerializeString(is);
	groups.clear();
	u32 groups_size = readU16(is);
	for(u32 i=0; i<groups_size; i++){
		std::string name = deSerializeString(is);
		int value = readS16(is);
		groups[name] = value;
	}
	drawtype = (enum NodeDrawType)readU8(is);
	visual_scale = readF1000(is);
	if(readU8(is) != 6)
		throw SerializationError("unsupported tile count");
	for(u32 i=0; i<6; i++)
		tiledef[i].deSerialize(is);
	if(readU8(is) != CF_SPECIAL_COUNT)
		throw SerializationError("unsupported CF_SPECIAL_COUNT");
	for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
		tiledef_special[i].deSerialize(is);
	alpha = readU8(is);
	post_effect_color.setAlpha(readU8(is));
	post_effect_color.setRed(readU8(is));
	post_effect_color.setGreen(readU8(is));
	post_effect_color.setBlue(readU8(is));
	param_type = (enum ContentParamType)readU8(is);
	param_type_2 = (enum ContentParamType2)readU8(is);
	is_ground_content = readU8(is);
	light_propagates = readU8(is);
	sunlight_propagates = readU8(is);
	walkable = readU8(is);
	pointable = readU8(is);
	diggable = readU8(is);
	climbable = readU8(is);
	buildable_to = readU8(is);
	deSerializeString(is); // legacy: used to be metadata_name
	liquid_type = (enum LiquidType)readU8(is);
	liquid_alternative_flowing = deSerializeString(is);
	liquid_alternative_source = deSerializeString(is);
	liquid_viscosity = readU8(is);
	liquid_renewable = readU8(is);
	light_source = readU8(is);
	damage_per_second = readU32(is);
	node_box.deSerialize(is);
	selection_box.deSerialize(is);
	legacy_facedir_simple = readU8(is);
	legacy_wallmounted = readU8(is);
	deSerializeSimpleSoundSpec(sound_footstep, is);
	deSerializeSimpleSoundSpec(sound_dig, is);
	deSerializeSimpleSoundSpec(sound_dug, is);
	rightclickable = readU8(is);
	// If you add anything here, insert it primarily inside the try-catch
	// block to not need to increase the version.
	try{
		// Stuff below should be moved to correct place in a version that
		// otherwise changes the protocol version
	}catch(SerializationError &e) {};
}

/*
	CNodeDefManager
*/

class CNodeDefManager: public IWritableNodeDefManager
{
public:
	void clear()
	{
		m_name_id_mapping.clear();
		m_name_id_mapping_with_aliases.clear();

		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			ContentFeatures &f = m_content_features[i];
			f.reset(); // Reset to defaults
		}

		// Set CONTENT_AIR
		{
			ContentFeatures f;
			f.name = "air";
			f.drawtype = NDT_AIRLIKE;
			f.param_type = CPT_LIGHT;
			f.light_propagates = true;
			f.sunlight_propagates = true;
			f.walkable = false;
			f.pointable = false;
			f.diggable = false;
			f.buildable_to = true;
			// Insert directly into containers
			content_t c = CONTENT_AIR;
			m_content_features[c] = f;
			addNameIdMapping(c, f.name);
		}
		// Set CONTENT_IGNORE
		{
			ContentFeatures f;
			f.name = "ignore";
			f.drawtype = NDT_AIRLIKE;
			f.param_type = CPT_NONE;
			f.light_propagates = false;
			f.sunlight_propagates = false;
			f.walkable = false;
			f.pointable = false;
			f.diggable = false;
			// A way to remove accidental CONTENT_IGNOREs
			f.buildable_to = true;
			// Insert directly into containers
			content_t c = CONTENT_IGNORE;
			m_content_features[c] = f;
			addNameIdMapping(c, f.name);
		}
	}
	// CONTENT_IGNORE = not found
	content_t getFreeId()
	{
		for(u32 i=0; i<=0xffff; i++){
			const ContentFeatures &f = m_content_features[i];
			if(f.name == "")
				return i;
		}
		return CONTENT_IGNORE;
	}
	CNodeDefManager()
	{
		clear();
	}
	virtual ~CNodeDefManager()
	{
	}
	virtual IWritableNodeDefManager* clone()
	{
		CNodeDefManager *mgr = new CNodeDefManager();
		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			mgr->set(i, get(i));
		}
		return mgr;
	}
	virtual const ContentFeatures& get(content_t c) const
	{
		assert(c <= MAX_CONTENT);
		return m_content_features[c];
	}
	virtual const ContentFeatures& get(const MapNode &n) const
	{
		return get(n.getContent());
	}
	virtual bool getId(const std::string &name, content_t &result) const
	{
		std::map<std::string, content_t>::const_iterator
			i = m_name_id_mapping_with_aliases.find(name);
		if(i == m_name_id_mapping_with_aliases.end())
			return false;
		result = i->second;
		return true;
	}
	virtual content_t getId(const std::string &name) const
	{
		content_t id = CONTENT_IGNORE;
		getId(name, id);
		return id;
	}
	virtual void getIds(const std::string &name, std::set<content_t> &result)
			const
	{
		//TimeTaker t("getIds", NULL, PRECISION_MICRO);
		if(name.substr(0,6) != "group:"){
			content_t id = CONTENT_IGNORE;
			if(getId(name, id))
				result.insert(id);
			return;
		}
		std::string group = name.substr(6);

#if 1	// Optimized version, takes less than 1 microsecond at -O1
		std::map<std::string, GroupItems>::const_iterator
			i = m_group_to_items.find(group);
		if (i == m_group_to_items.end())
			return;

		const GroupItems &items = i->second;
		for (GroupItems::const_iterator j = items.begin();
			j != items.end(); ++j) {
			if ((*j).second != 0)
				result.insert((*j).first);
		}
#else	// Old version, takes about ~150-200us at -O1
		for(u16 id=0; id<=MAX_CONTENT; id++)
		{
			const ContentFeatures &f = m_content_features[id];
			if(f.name == "") // Quickly discard undefined nodes
				continue;
			if(itemgroup_get(f.groups, group) != 0)
				result.insert(id);
		}
#endif
		//printf("getIds: %dus\n", t.stop());
	}
	virtual const ContentFeatures& get(const std::string &name) const
	{
		content_t id = CONTENT_IGNORE;
		getId(name, id);
		return get(id);
	}
	// IWritableNodeDefManager
	virtual void set(content_t c, const ContentFeatures &def)
	{
		verbosestream<<"registerNode: registering content id \""<<c
				<<"\": name=\""<<def.name<<"\""<<std::endl;
		assert(c <= MAX_CONTENT);
		// Don't allow redefining CONTENT_IGNORE (but allow air)
		if(def.name == "ignore" || c == CONTENT_IGNORE){
			infostream<<"registerNode: WARNING: Ignoring "
					<<"CONTENT_IGNORE redefinition"<<std::endl;
			return;
		}
		// Check that the special contents are not redefined as different id
		// because it would mess up everything
		if((def.name == "ignore" && c != CONTENT_IGNORE) ||
			(def.name == "air" && c != CONTENT_AIR)){
			errorstream<<"registerNode: IGNORING ERROR: "
					<<"trying to register built-in type \""
					<<def.name<<"\" as different id"<<std::endl;
			return;
		}
		m_content_features[c] = def;
		if(def.name != "")
			addNameIdMapping(c, def.name);

		// Add this content to the list of all groups it belongs to
		for (ItemGroupList::const_iterator i = def.groups.begin();
			i != def.groups.end(); ++i) {
			std::string group_name = i->first;
			
			std::map<std::string, GroupItems>::iterator
				j = m_group_to_items.find(group_name);
			if (j == m_group_to_items.end()) {
				m_group_to_items[group_name].push_back(std::make_pair(c, i->second));
			} else {
				GroupItems &items = j->second;
				items.push_back(std::make_pair(c, i->second));
			}
		}
	}
	virtual content_t set(const std::string &name,
			const ContentFeatures &def)
	{
		assert(name == def.name);
		u16 id = CONTENT_IGNORE;
		bool found = m_name_id_mapping.getId(name, id);  // ignore aliases
		if(!found){
			// Get some id
			id = getFreeId();
			if(id == CONTENT_IGNORE)
				return CONTENT_IGNORE;
			if(name != "")
				addNameIdMapping(id, name);
		}
		set(id, def);
		return id;
	}
	virtual content_t allocateDummy(const std::string &name)
	{
		assert(name != "");
		ContentFeatures f;
		f.name = name;
		return set(name, f);
	}
	virtual void updateAliases(IItemDefManager *idef)
	{
		std::set<std::string> all = idef->getAll();
		m_name_id_mapping_with_aliases.clear();
		for(std::set<std::string>::iterator
				i = all.begin(); i != all.end(); i++)
		{
			std::string name = *i;
			std::string convert_to = idef->getAlias(name);
			content_t id;
			if(m_name_id_mapping.getId(convert_to, id))
			{
				m_name_id_mapping_with_aliases.insert(
						std::make_pair(name, id));
			}
		}
	}
	virtual void updateTextures(ITextureSource *tsrc)
	{
#ifndef SERVER
		infostream<<"CNodeDefManager::updateTextures(): Updating "
				<<"textures in node definitions"<<std::endl;

		bool new_style_water = g_settings->getBool("new_style_water");
		bool new_style_leaves = g_settings->getBool("new_style_leaves");
		bool opaque_water = g_settings->getBool("opaque_water");

		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			ContentFeatures *f = &m_content_features[i];

			// Figure out the actual tiles to use
			TileDef tiledef[6];
			for(u32 j=0; j<6; j++)
			{
				tiledef[j] = f->tiledef[j];
				if(tiledef[j].name == "")