package Battleship;

import java.util.ArrayList;
import Battleship.Ship.Direction;

public class Board {

	public static final String COORD_STATE_BLANK = " . ";
	public static final String COORD_STATE_SHIP = " | ";
	public static final String COORD_STATE_MISS = " o ";
	public static final String COORD_STATE_HIT = " x ";
	public static final String COORD_STATE_SUNKEN = " X ";
	
	private int mapWidth;
	private int mapHeight;
	private ArrayList<Ship> ships;
	private String[][] board;
	private Coordinate coord;
	
	public Board(int x, int y) {
		mapWidth = x;
		mapHeight = y;
		ships = new ArrayList<Ship>();
		board = new String[x][y];
		
		for (int i = 0; i < mapWidth; i++) {
			for (int j = 0; j < mapHeight; j++) {
				board[i][j] = COORD_STATE_BLANK;
			}
		}
	}
	
	public Board() {
	}
	
	public boolean placeShip(int x, int y, int length, Direction direction) {
		if(coordinateOutOfBounds(new Coordinate(x,y)) == true) return false;
		if(lengthOutOfBounds(x,y,length) == true) return false; 
		
		for (int i = 0; i < ships.size(); i++) {
			if(ships.get(i).occupiesCoordinate(new Coordinate(x,y))) return false;
		}

		System.out.println("Ship placed at " + x + "," + y);
		
		for (int i = 0; i < length; i++) {
			if(direction == Direction.NORTH) {
				x--;
			} else if (direction == Direction.SOUTH) {
				x++;
			} else if (direction == Direction.EAST) {
				y++;
			} else if (direction == Direction.WEST) {
				y--;
			}
		}
		
		Ship ship = new Ship(direction, length, x, y);
		ships.add(ship);
		
		return true;
	}
	
	public boolean hit(int x, int y){
		if(board[x][y] != COORD_STATE_BLANK)
			return false;
		
		for(Ship ship : ships)
			if(ship.hit(x, y)){
				if(ship.sunken()) { 
					for(Coordinate coordinate : ship.getCoordinates())
						board[coordinate.getX()][coordinate.getY()] = COORD_STATE_SUNKEN;
				} else {
					board[x][y] = COORD_STATE_HIT;
					return true;
				}
			}
		
		board[x][y] = COORD_STATE_MISS;
		return false;
	}
	
	public boolean lengthOutOfBounds(int x, int y, int length) {
		for (int i = 0; i < ships.size(); i++) {
			if(coordinateOutOfBounds(ships.get(i).getCoordinates().get(i)) == true) return true;
		}
		
		return false;
	}
	
	private boolean coordinateOutOfBounds(Coordinate coord) {
		if(coord.getX() > mapWidth || coord.getY() > mapWidth) return true;
		if(coord.getX() < 1 || coord.getY() < 1) return true;
		
		return false;
	}
	
	public boolean allShipsSunken() {
		for (int i = 0; i < ships.size(); i++) {
			if(ships.get(i).sunken() == true) return true;
		}
		return false;
	}
	
	public int getHeight() {
		return mapHeight;
	}
	
	public int getWidth() {
		return mapWidth;
	}
	
	public String[][] getMap() {
		return board;
	}
	
	public void setMapElement(String s, int y, int x) {
		board[x][y] = " "+ s + " ";
	}
	
	public ArrayList<Ship> getShips() {
		return ships;
	}
	
	
}