#include "board.h"


int check_allowed_tile(char* tile, int position, char* board) {
  for (int i = 0; i < 4; i++) {
    int index = (position * TILE_SIZE + i) + direction_increments[i];
    printf("Checking board index %i\n", index);
    // TODO: board should have sentinel row/column
    if (index >= 0 && index < BOARD_BYTES) {
      char neighboring_edge = board[index];
      if (neighboring_edge > 0 && neighboring_edge != tile[i] && neighboring_edge != '_') {
        printf("Failed on edge %i (%c). Neighboring edge is %c\n", i, tile[i], neighboring_edge);
        return 0;
      }
    }
  }
  return 1;
}

void place_tile(char* tile, int position, char* board) {
  if (!check_allowed_tile(tile, position, board)) {
    printf("Could not place the tile!");
    return;
  }
  for (int i = 0; i < TILE_SIZE; i++) {
    board[position * TILE_SIZE + i] = tile[i];
  }
}

void print_board(char* board) {
  for (int row = 0; row < BOARD_WIDTH; row++) {
    for (int tile = 0; tile < BOARD_WIDTH; tile++) {
      printf("_%c_", board[TILE_SIZE * (row * BOARD_WIDTH + tile)]);
    }
    printf("\n");
    for (int tile = 0; tile < BOARD_WIDTH; tile++) {
      printf(
          "%c%c%c",
          board[TILE_SIZE * (row * BOARD_WIDTH + tile) + 3],
          board[TILE_SIZE * (row * BOARD_WIDTH + tile) + 4],
          board[TILE_SIZE * (row * BOARD_WIDTH + tile) + 1]
      );
    }
    printf("\n");
    for (int tile = 0; tile < BOARD_WIDTH; tile++) {
      printf("_%c_", board[TILE_SIZE * (row * BOARD_WIDTH + tile) + 2]);
    }
    printf("\n");
  }
}

void initialize_board(char* board) {
  for (int i = 0; i < BOARD_BYTES; i++) {
    board[i] = '_';
  }
}

int main() {
  // Board
  char board[BOARD_BYTES];
  initialize_board(board);

  place_tile("ABCDE", 7, board);
  place_tile("FGHBJ", 8, board);
  place_tile("FGHGJ", 9, board);
  place_tile("FGAGJ", 1, board);

  print_board(board);

  return 0;
}