#ifndef __CHEROHANDLER_H__
#define __CHEROHANDLER_H__
#include "../global.h"
#include <string>
#include <vector>
#include <set>

/*
 * CHeroHandler.h, part of VCMI engine
 *
 * Authors: listed in file AUTHORS in main folder
 *
 * License: GNU General Public License v2.0 or later
 * Full text of license available in license.txt file, in main folder
 *
 */

class CHeroClass;
class CDefHandler;
class CGameInfo;
class CGHeroInstance;
class DLL_EXPORT CHero
{
public:
	enum EHeroClasses {KNIGHT, CLERIC, RANGER, DRUID, ALCHEMIST, WIZARD,
		DEMONIAC, HERETIC, DEATHKNIGHT, NECROMANCER, WARLOCK, OVERLORD,
		BARBARIAN, BATTLEMAGE, BEASTMASTER, WITCH, PLANESWALKER, ELEMENTALIST};

	std::string name; //name of hero
	ui16 ID;
	ui32 lowStack[3], highStack[3]; //amount of units; described below
	std::string refTypeStack[3]; //reference names of units appearing in hero's army if he is recruited in tavern
	CHeroClass * heroClass;
	EHeroClasses heroType; //hero class
	std::vector<std::pair<ui8,ui8> > secSkillsInit; //initial secondary skills; first - ID of skill, second - level of skill (1 - basic, 2 - adv., 3 - expert)
	si32 startingSpell; //-1 if none
	//bool operator<(CHero& drugi){if (ID < drugi.ID) return true; else return false;}

	CHero();
	~CHero();

	template <typename Handler> void serialize(Handler &h, const int version)
	{
		h & name & ID & lowStack & highStack & refTypeStack	& heroType & startingSpell;
		//hero class pointer is restored by herohandler
	}
};

class DLL_EXPORT CHeroClass
{
public:
	ui32 skillLimit; //how many secondary skills can hero learn
	std::string name;
	float aggression;
	int initialAttack, initialDefence, initialPower, initialKnowledge; //initial values of primary skills
	std::vector<std::pair<int,int> > primChance;//primChance[PRIMARY_SKILL_ID] - first is for levels 2 - 9, second for 10+;;; probability (%) of getting point of primary skill when getting new level
	std::vector<int> proSec; //probabilities of gaining secondary skills (out of 112), in id order
	int selectionProbability[9]; //probability of selection in towns
	std::vector<int> terrCosts; //default costs of going through terrains: dirt, sand, grass, snow, swamp, rough, subterranean, lava, water, rock; -1 means terrain is imapassable

	int chooseSecSkill(const std::set<int> & possibles) const; //picks secondary skill out from given possibilities
	CHeroClass(); //c-tor
	~CHeroClass(); //d-tor

	template <typename Handler> void serialize(Handler &h, const int version)
	{
		h & skillLimit & name & aggression & initialAttack & initialDefence & initialPower & initialKnowledge & primChance
			& proSec & selectionProbability & terrCosts;
	}
};

struct DLL_EXPORT CObstacleInfo
{
	int ID;
	std::string defName, 
		blockmap, //blockmap: X - blocked, N - not blocked, L - description goes to the next line, staring with the left bottom hex
		allowedTerrains; /*terrains[i]: 1. sand/shore   2. sand/mesas   3. dirt/birches   4. dirt/hills   5. dirt/pines   6. grass/hills   
			7. grass/pines   8. lava   9. magic plains   10. snow/mountains   11. snow/trees   12. subterranean   13. swamp/trees  
			14. fiery fields   15. rock lands   16. magic clouds   17. lucid pools   18. holy ground   19. clover field  
			20. evil fog   21. "favourable winds" text on magic plains background   22. cursed ground   23. rough 
			24. ship to ship   25. ship*/
	std::pair<si16, si16> posShift; //shift of obstacle's position in the battlefield <x shift, y shift>, eg. if it's <-1, 2> obstacle will be printed one pixel to the left and two to the bottom
	int getWidth() const; //returns width of obstacle in hexes
	int getHeight() const; //returns height of obstacle in hexes
	std::vector<int> getBlocked(int hex) const; //returns vector of hexes blocked by obstacle when it's placed on hex 'hex'
	int getMaxBlocked(int hex) const; //returns maximal hex (max number) covered by this obstacle
	template <typename Handler> void serialize(Handler &h, const int version)
	{
		h & ID & defName & blockmap & allowedTerrains & posShift;
	}
};

struct DLL_EXPORT SPuzzleInfo
{
	ui16 number; //type of puzzle
	si16 x, y; //position
	ui16 whenUncovered; //determines the sequnce of discovering (the lesser it is the sooner puzzle will be discovered)
	std::string filename; //file with graphic of this puzzle

	template <typename Handler> void serialize(Handler &h, const int version)
	{
		h & number & x & y & whenUncovered & filename;
	}
};

const int PUZZLES_PER_FACTION = 48;

class DLL_EXPORT CHeroHandler
{
public:
	std::vector<CHero*> heroes; //changed from nodrze
	std::vector<CHeroClass *> heroClasses;
	std::vector<ui64> expPerLevel; //expPerLEvel[i] is amount of exp needed to reach level i; if it is not in this vector, multiplicate last value by 1,2 to get next value
	
	struct SBallisticsLevelInfo
	{
		ui8 keep, tower, gate, wall; //chance to hit in percent (eg. 87 is 87%)
		ui8 shots; //how many shots we have
		ui8 noDmg, oneDmg, twoDmg; //chances for shot dealing certain dmg in percent (eg. 87 is 87%); must sum to 100
		ui8 sum; //I don't know if it is useful for anything, but it's in config file
		template <typename Handler> void serialize(Handler &h, const int version)
		{
			h & keep & tower & gate & wall & shots & noDmg & oneDmg & twoDmg & sum;
		}
	};
	std::vector<SBallisticsLevelInfo> ballistics; //info about ballistics ability per level; [0] - none; [1] - basic; [2] - adv; [3] - expert

	std::vector<std::pair<int, int> > wallPositions[F_NUMBER]; //positions of different pieces of wall <x, y>
	void loadWallPositions();

	std::map<int, CObstacleInfo> obstacles; //info about obstacles that may be placed on battlefield
	std::vector<int> nativeTerrains; //info about native terrains of different factions

	void loadObstacles(); //loads info about obstacles

	std::vector<SPuzzleInfo> puzzleInfo[F_NUMBER]; //descriptions of puzzles
	void loadPuzzleInfo();

	unsigned int level(ui64 experience); //calculates level corresponding to given experience amount
	ui64 reqExp(unsigned int level); //calculates experience required for given level

	void loadHeroes();
	void loadHeroClasses();
	void initHeroClasses();
	void initTerrainCosts();
	void loadNativeTerrains();
	CHeroHandler(); //c-tor
	~CHeroHandler(); //d-tor

	template <typename Handler> void serialize(Handler &h, const int version)
	{
		h & heroClasses & heroes & expPerLevel & ballistics & wallPositions & obstacles & nativeTerrains & puzzleInfo;
		if(!h.saving)
		{
			//restore class pointers
			for (int i=0; i<heroes.size(); i++)
			{
				heroes[i]->heroClass = heroClasses[heroes[i]->heroType];
			}
		}
	}
};

#endif // __CHEROHANDLER_H__