__author__ = 'gaugendre'

from grid import Grid
# def solve(grid):
# y = 0
#     while y < len(grid):
#         x = 0
#         while x < len(grid[0]):
#             if grid[x][y] == ' ':
#                 v_prev_x, v_prev_y = prev_vert(x, y)
#                 v_p_prev_x, v_p_prev_y = prev_vert(v_prev_x, v_prev_y)
#                 v_next_x, v_next_y = next_vert(x, y, len(grid))
#                 v_n_next_x, v_n_next_y = next_vert(v_next_x, v_next_y,
#                                                    len(grid))
#
#                 h_prev_x, h_prev_y = prev_horiz(x, y)
#                 h_p_prev_x, h_p_prev_y = prev_horiz(h_prev_x, h_prev_y)
#                 h_next_x, h_next_y = next_horiz(x, y, len(grid[0]))
#                 h_n_next_x, h_n_next_y = next_horiz(h_next_x, h_next_y,
#                                                     len(grid[0]))
#
#                 be_blue = (exists(v_prev_x, v_prev_y) and
#                            exists(v_p_prev_x, v_p_prev_y) and
#                            grid[v_prev_x][v_prev_y] == 'R' and
#                            grid[v_p_prev_x][v_p_prev_y] == 'R') or \
#                           (exists(v_next_x, v_next_y) and
#                            exists(v_n_next_x, v_n_next_y) and
#                            grid[v_next_x][v_next_y] == 'R' and
#                            grid[v_n_next_x][v_n_next_y] == 'R') or \
#                           (exists(h_prev_x, h_prev_y) and
#                            exists(h_p_prev_x, h_p_prev_y) and
#                            grid[h_prev_x][h_prev_y] == 'R' and
#                            grid[h_p_prev_x][h_p_prev_y] == 'R') or \
#                           (exists(h_next_x, h_next_y) and
#                            exists(h_n_next_y, h_n_next_y) and
#                            grid[h_next_x][h_next_y] == 'R' and
#                            grid[h_n_next_x][h_n_next_y] == 'R') or \
#                           (exists(h_prev_x, h_prev_y) and
#                            exists(h_next_x, h_next_y) and
#                            grid[h_prev_x][h_prev_y] == 'R' and
#                            grid[h_next_x][h_next_y] == 'R') or \
#                           (exists(v_prev_x, v_prev_y) and
#                            exists(v_next_x, v_next_y) and
#                            grid[v_prev_x][v_prev_y] == 'R' and
#                            grid[v_next_x][v_next_y] == 'R')
#
#                 be_red = (v_prev_x >= 0 and v_prev_y >= 0 and
#                           v_p_prev_x >= 0 and v_p_prev_y >= 0 and
#                           grid[v_prev_x][v_prev_y] == 'B' and
#                           grid[v_p_prev_x][v_p_prev_y] == 'B') or \
#                          (v_next_x >= 0 and v_next_y >= 0 and
#                           v_n_next_x >= 0 and v_n_next_y >= 0 and
#                           grid[v_next_x][v_next_y] == 'B' and
#                           grid[v_n_next_x][v_n_next_y] == 'B') or \
#                          (h_prev_x >= 0 and h_prev_y >= 0 and
#                           h_p_prev_x >= 0 and h_p_prev_y >= 0 and
#                           grid[h_prev_x][h_prev_y] == 'B' and
#                           grid[h_p_prev_x][h_p_prev_y] == 'B') or \
#                          (h_next_x >= 0 and h_next_y >= 0 and
#                           h_n_next_y >= 0 and h_n_next_y >= 0 and
#                           grid[h_next_x][h_next_y] == 'B' and
#                           grid[h_n_next_x][h_n_next_y] == 'B') or \
#                           (exists(h_prev_x, h_prev_y) and
#                            exists(h_next_x, h_next_y) and
#                            grid[h_prev_x][h_prev_y] == 'B' and
#                            grid[h_next_x][h_next_y] == 'B') or \
#                           (exists(v_prev_x, v_prev_y) and
#                            exists(v_next_x, v_next_y) and
#                            grid[v_prev_x][v_prev_y] == 'B' and
#                            grid[v_next_x][v_next_y] == 'B')
#
#                 if be_blue:
#                     grid[x][y] = 'B'
#                 elif be_red:
#                     grid[x][y] = 'R'
#             x += 1
#         y += 1


if __name__ == "__main__":
    array = [['B', ' ', ' ', ' '],
             ['B', 'B', ' ', ' '],
             [' ', ' ', ' ', ' '],
             [' ', 'B', ' ', 'B']]
    grid = Grid(len(array), array)
    print(grid)
    grid.solve()
    print(grid)