package org.woehlke.computer.kurzweil.simulated.evolution.model;
   
   
   import lombok.EqualsAndHashCode;
   import lombok.Getter;
   import lombok.ToString;
   import lombok.extern.log4j.Log4j2;
   import org.woehlke.computer.kurzweil.simulated.evolution.model.cell.Cell;
   import org.woehlke.computer.kurzweil.simulated.evolution.model.world.SimulatedEvolutionParameter;
  import org.woehlke.computer.kurzweil.simulated.evolution.model.lattice.SimulatedEvolutionWorldLattice;
  import org.woehlke.computer.kurzweil.simulated.evolution.model.world.WorldPoint;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.Date;
  import java.util.List;
  import java.util.Random;
  
  /**
   * The World contains Water, Cells and Food.
   * It is the Data Model of the Simulation in a MVC Pattern.
   *
   * © 2006 - 2008 Thomas Woehlke.
   * @author Thomas Woehlke
   *
   * @see Cell
   * @see SimulatedEvolutionWorldLattice
   *
   * @see <a href="https://thomas-woehlke.blogspot.com/2016/01/mandelbrot-set-drawn-by-turing-machine.html">Blog Article</a>
   * @see <a href="https://github.com/Computer-Kurzweil/simulated-evolution">Github Repository</a>
   * @see <a href="https://java.woehlke.org/simulated-evolution/">Maven Project Repository</a>
   *
   * User: thomas
   * Date: 04.02.2006
   * Time: 19:06:20
   */
  @Log4j2
  @ToString(exclude = {"random"})
  @EqualsAndHashCode(exclude = {"random"})
  public class SimulatedEvolutionModel implements Serializable {
  
      static final long serialVersionUID = 242L;
  
      /**
       * List of the Simulated Bacteria Cells.
       */
      private List<Cell> cells;
  
      /**
       * Start with 20 Cells.
       */
      private final int INITIAL_POPULATION = 20;
  
      /**
       * Random Generator used for Bacteria Motion.
       */
      private Random random;
  
      /**
       * Definition of the World's Size in Pixel Width and Height.
       */
      private WorldPoint worldDimensions;
  
      /**
       * Map of the World monitoring growth and eating food.
       */
      private SimulatedEvolutionWorldLattice simulatedEvolutionWorldLattice;
  
      //@Getter
      //private SimulatedEvolutionPopulationContainer simulatedEvolutionPopulationContainer;
  
      @Getter
      private SimulatedEvolutionParameter simulatedEvolutionParameter;
  
      public SimulatedEvolutionModel(WorldPoint worldDimensions) {
          long seed = new Date().getTime();
          random = new Random(seed);
          this.worldDimensions = worldDimensions;
          simulatedEvolutionWorldLattice = new SimulatedEvolutionWorldLattice(this.worldDimensions,random);
          createPopulation();
          simulatedEvolutionParameter = new SimulatedEvolutionParameter();
          //simulatedEvolutionPopulationContainer = new SimulatedEvolutionPopulationContainer(tabCtx);
      }
  
      /**
       * Create the initial Population of Bacteria Cells and give them their position in the World.
       */
      private void createPopulation() {
          cells = new ArrayList<Cell>();
          for (int i = 0; i < INITIAL_POPULATION; i++) {
              int x = random.nextInt(worldDimensions.getX());
              int y = random.nextInt(worldDimensions.getY());
              if (x < 0) {
                  x *= -1;
              }
              if (y < 0) {
                  y *= -1;
              }
              WorldPoint pos = new WorldPoint(x, y);
             Cell cell = new Cell(worldDimensions, pos, random);
             cells.add(cell);
         }
     }
 
     /**
      * One Step of Time in the World in which the Population of Bacteria Cell perform Life:
      * Every Cell moves, eats, dies of hunger, and it has sex: splitting into two children with changed DNA.
      */
     public void letLivePopulation() {
         simulatedEvolutionWorldLattice.letFoodGrow();
         WorldPoint pos;
         List<Cell> children = new ArrayList<Cell>();
         List<Cell> died = new ArrayList<Cell>();
         for (Cell cell:cells) {
             cell.move();
             if(cell.died()){
                 died.add(cell);
             } else {
                 pos = cell.getPosition();
                 int food = simulatedEvolutionWorldLattice.eat(pos);
                 cell.eat(food);
                 if (cell.isPregnant()) {
                     Cell child = cell.performReproductionByCellDivision();
                     children.add(child);
                 }
             }
         }
         for(Cell dead:died){
             cells.remove(dead);
         }
         cells.addAll(children);
     }
 
     public List<Cell> getAllCells(){
         return cells;
     }
 
     public boolean hasFood(int x, int y) {
         return simulatedEvolutionWorldLattice.hasFood(x,y);
     }
 }