package electrosphere.server.macro;

import java.util.LinkedList;
import java.util.List;

import electrosphere.engine.Globals;
import electrosphere.logger.LoggerInterface;
import electrosphere.server.datacell.ServerWorldData;
import electrosphere.server.macro.character.Character;
import electrosphere.server.macro.character.CharacterDataStrings;
import electrosphere.server.macro.character.CharacterUtils;
import electrosphere.server.macro.character.diety.Diety;
import electrosphere.server.macro.civilization.Civilization;
import electrosphere.server.macro.race.Race;
import electrosphere.server.macro.race.RaceMap;
import electrosphere.server.macro.spatial.MacroAreaObject;
import electrosphere.server.macro.structure.Structure;
import electrosphere.server.macro.symbolism.Symbol;
import electrosphere.server.macro.town.Town;
import electrosphere.util.FileUtils;

import java.util.Random;

import org.joml.Vector3i;

/**
 * Server macro level data
 */
public class MacroData {

    /**
     * The maximum number of attempts to try placing something
     */
    static final int MAX_PLACEMENT_ATTEMPTS = 50;
    
    /**
     * List of initial dieties
     */
    List<Character> initialDieties = new LinkedList<Character>();

    /**
     * List of races
     */
    List<Race> races = new LinkedList<Race>();

    /**
     * List of characters
     */
    List<Character> characters = new LinkedList<Character>();

    /**
     * List of alive characters
     */
    List<Character> aliveCharacters = new LinkedList<Character>();

    /**
     * List of civilizations
     */
    List<Civilization> civilizations = new LinkedList<Civilization>();

    /**
     * List of towns
     */
    List<Town> towns = new LinkedList<Town>();

    /**
     * List of structures
     */
    List<Structure> structures = new LinkedList<Structure>();

    /**
     * Generates a world
     * @param seed The seed for the world
     * @return The world
     */
    public static MacroData generateWorld(long seed, ServerWorldData serverWorldData){
        Random random = new Random(seed);
        MacroData rVal = new MacroData();
        
        //generate initial dieties
        int numDieties = 3 + Math.abs(random.nextInt()) % 7;
        for(int i = 0; i < numDieties; i++){
            Character diety = generateInitialDiety(random.nextLong());
            rVal.initialDieties.add(diety);
            rVal.characters.add(diety);
        }
        
        //generate initial races
        if(Globals.gameConfigCurrent.getRaceMap().getSymbolismMap().size() < 3){
            for(Race race : Globals.gameConfigCurrent.getRaceMap().getSymbolismMap()){
                rVal.races.add(race);
            }
        } else {
            RaceMap raceMap = Globals.gameConfigCurrent.getRaceMap();
            int numRacesToGenerate = 3 + random.nextInt(Math.min(raceMap.getSymbolismMap().size() - 3,7));
            for(int i = 0; i < numRacesToGenerate; i++){
                Race raceToAdd = raceMap.getSymbolismMap().get(random.nextInt(raceMap.getSymbolismMap().size()));
                while(rVal.races.contains(raceToAdd)){
                    raceToAdd = raceMap.getSymbolismMap().get(random.nextInt(raceMap.getSymbolismMap().size()));
                }
                rVal.races.add(raceToAdd);
            }
        }
        
        //add a test character
        // Character testChar = new Character();
        // testChar.setPos(new Vector3d(ServerWorldData.convertChunkToRealSpace(new Vector3i(32774, 3, 32769))));
        // Race.setRace(testChar, Race.create("human", "human"));
        // rVal.characters.add(testChar);

        //add a test character
        // Vector3d structPos = ServerWorldData.convertChunkToRealSpace(new Vector3i(32774, 0, 32770));
        // double elevationAtStruct = serverWorldData.getServerTerrainManager().getElevation(32774, 32770, 0, 0);
        // structPos.y = elevationAtStruct;
        // Structure struct = Structure.createStructure(Globals.gameConfigCurrent.getStructureData().getType("test1"),structPos);
        // rVal.structures.add(struct);

        //spawn initial characters in each race
        //find initial positions to place characters at per race
        //generate initial characters
        //place them
        // List<Vector2i> occupiedStartingPositions = new LinkedList<Vector2i>();
        // for(Race race : rVal.races){
        //     boolean foundPlacementLocation = false;
        //     int attempts = 0;
        //     while(!foundPlacementLocation){
        //         // Vector2i start = new Vector2i(random.nextInt(Globals.serverTerrainManager.getWorldDiscreteSize()),random.nextInt(Globals.serverTerrainManager.getWorldDiscreteSize()));
        //         // //are we above sea level?
        //         // if(Globals.serverTerrainManager.getDiscreteValue(start.x, start.y) > 25){
        //         //     //is this position already occupied?
        //         //     boolean match = false;
        //         //     for(Vector2i known : occupiedStartingPositions){
        //         //         if(known.x == start.x && known.y == start.y){
        //         //             match = true;
        //         //             break;
        //         //         }
        //         //     }
        //         //     if(!match){
        //         //         //occupy position
        //         //         occupiedStartingPositions.add(start);
        //         //         foundPlacementLocation = true;
        //         //         //make characters
        //         //         int numCharactersToMake = 5 + random.nextInt(20);
        //         //         for(int i = 0; i < numCharactersToMake; i++){
        //         //             Character character = new Character();
        //         //             CharacterUtils.addDiscretePosition(character, start.x, start.y);
        //         //             CharacterUtils.addRace(character, race);
        //         //             rVal.characters.add(character);
        //         //             rVal.aliveCharacters.add(character);
        //         //         }
        //         //     }
        //         // }
        //         // attempts++;
        //         // if(attempts > MAX_PLACEMENT_ATTEMPTS){
        //         //     break;
        //         // }
        //     }
        // }
        
        return rVal;
    }

    /**
     * Saves this macro data to a save path
     * @param saveName The name of the save
     */
    public void save(String saveName){
        FileUtils.serializeObjectToSavePath(saveName, "./macro.json", this);
    }

    /**
     * Generates an initial diety
     * @param seed The seed
     * @return The character for the diety
     */
    static Character generateInitialDiety(long seed){
        Character rVal = new Character();
        
        
        Diety diety = Diety.generateDiety(seed);
        CharacterUtils.addDiety(rVal, diety);
        
        
        return rVal;
    }
    
    /**
     * Gets all alive characters
     * @return The list of all characters
     */
    public List<Character> getAliveCharacters(){
        return aliveCharacters;
    }
    
    /**
     * Gets the list of civilizations
     * @return The list of civilizations
     */
    public List<Civilization> getCivilizations(){
        return civilizations;
    }
    
    /**
     * Adds a civilization
     * @param civilization The civilization
     */
    public void addCivilization(Civilization civilization){
        civilizations.add(civilization);
    }
    
    /**
     * Gets the list of towns
     * @return The list of towns
     */
    public List<Town> getTowns(){
        return towns;
    }
    
    /**
     * Adds a town
     * @param town The town
     */
    public void addTown(Town town){
        towns.add(town);
    }
    
    /**
     * Gets the list of structures
     * @return The list of structures
     */
    public List<Structure> getStructures(){
        return structures;
    }
    
    /**
     * Adds a structure
     * @param structure The structure
     */
    public void addStructure(Structure structure){
        structures.add(structure);
    }
    
    /**
     * Describes the world
     */
    public void describeWorld(){
        LoggerInterface.loggerEngine.WARNING("Initial dieties");
        LoggerInterface.loggerEngine.WARNING("==========================");
        for(Character chara : initialDieties){
            LoggerInterface.loggerEngine.WARNING("Diety");
            Diety diety = CharacterUtils.getDiety(chara);
            for(Symbol symbol : diety.getSymbols()){
                LoggerInterface.loggerEngine.WARNING(symbol.getName() + " ");
            }
            LoggerInterface.loggerEngine.WARNING("\n");
        }
        LoggerInterface.loggerEngine.WARNING("==========================");
        LoggerInterface.loggerEngine.WARNING("\n\n");
        LoggerInterface.loggerEngine.WARNING("Initial races");
        LoggerInterface.loggerEngine.WARNING("==========================");
        for(Race race : races){
            LoggerInterface.loggerEngine.WARNING(race.getName());
            int numCharsOfRace = 0;
            //n*m complexity - yikes! - as long as we're not making a million chars at start this should be _ok_
            for(Character chara : characters){
                if(chara.containsKey(CharacterDataStrings.RACE)){
                    if(Race.getRace(chara).equals(race)){
                        numCharsOfRace++;
                    }
                }
            }
            LoggerInterface.loggerEngine.WARNING(numCharsOfRace + " initial characters");
            LoggerInterface.loggerEngine.WARNING("\n");
        }
        LoggerInterface.loggerEngine.WARNING("==========================");
    }


    /**
     * Gets the characters at a given world position
     * @param worldPos The world position
     * @return The list of characters occupying that world position
     */
    public List<Character> getCharacters(Vector3i worldPos){
        List<Character> rVal = new LinkedList<Character>();
        for(Character character : this.characters){
            if(ServerWorldData.convertRealToChunkSpace(character.getPos()).equals(worldPos.x, worldPos.y, worldPos.z)){
                rVal.add(character);
            }
        }
        return rVal;
    }

    /**
     * Gets the list of content-blocking macro objects
     * @return The list
     */
    public List<MacroAreaObject> getContentBlockers(){
        List<MacroAreaObject> blockers = new LinkedList<MacroAreaObject>();
        blockers.addAll(this.structures);
        return blockers;
    }

    /**
     * Gets a character by its id
     * @param id The id
     * @return The character if it exists, null otherwise
     */
    public Character getCharacter(int id){
        for(Character character : this.characters){
            if(character.getId() == id){
                return character;
            }
        }
        return null;
    }
    
}