import Debug, { Debugger } from 'debug';

enum Direction {
  North,
  East,
  South,
  West
}

enum Item {
  Empty = " ",
  Road = "R",
  Town = "T",
  River = "I",
  Church = "C",
}

class Cell {
  center: Item;
  private sides: [Item, Item, Item, Item];
  private orientation: number // amount of 90-degree counter-clockwise rotations from original orientation
  shield?: boolean;

  debug: Debugger;

  public constructor(center: Item, sides: [Item, Item, Item, Item], shield = false) {
    this.center = center;
    this.sides = sides;
    this.shield = shield;
    this.orientation = 0;

    this.debug = Debug('cell');
  }

  toString() {
    return ` ${this.getSide(Direction.North)} \n${this.getSide(Direction.West)}${this.center}${this.getSide(Direction.East)}\n ${this.getSide(Direction.South)} `;
  }

  getSide(direction: Direction) {
    return this.sides[(((this.orientation + direction) % 4) + 4) % 4];
  }

  rotate(rotation = 1) {
    this.debug(`Rotating ${rotation} clockwise`)
    this.orientation = this.orientation - rotation;
  }

  isAttachable(cell: Cell, side: Direction) {
    return (this.getSide(side) === cell.getSide(side + 2));
  }

}

const test = () => {
  const cell = new Cell(Item.Empty, [Item.Road, Item.Road, Item.Town, Item.Town]);
  console.log(cell.toString());


  const other = new Cell(Item.Empty, [Item.Road, Item.Road, Item.Town, Item.Town]);
  other.rotate();
  console.log(other.toString());
  console.log(cell.isAttachable(other, Direction.North));
}

test();