#include "mybt.h"
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string.h>
#include <string>

bt_t B;
int boardwidth = 0;
int boardheight = 0;
bool white_turn = true;

#ifndef VERBOSE_RAND_PLAYER
#define VERBOSE_RAND_PLAYER
bool verbose = true;
bool showboard_at_each_move = false;
#endif

void help() {
  fprintf(stderr, "  quit\n");
  fprintf(stderr, "  echo ON | OFF\n");
  fprintf(stderr, "  help\n");
  fprintf(stderr, "  name <PLAYER_NAME>\n");
  fprintf(stderr, "  newgame <NBCOL> <NBLINE>\n");
  fprintf(stderr, "  genmove\n");
  fprintf(stderr, "  play <L0C0L1C1>\n");
  fprintf(stderr, "  showboard\n");
}
void name() { printf("= rand_player\n\n"); }
void newgame() {
  if ((boardheight < 1 || boardheight > 10) &&
      (boardwidth < 1 || boardwidth > 10)) {
    fprintf(stderr, "boardsize is %d %d ???\n", boardheight, boardwidth);
    printf("= \n\n");
    return;
  }
  B.init(boardheight, boardwidth);
  white_turn = true;
  if (verbose)
    fprintf(stderr, "ready to play on %dx%d board\n", boardheight, boardwidth);
  printf("= \n\n");
}
void showboard() {
  B.print_board(stderr);
  printf("= \n\n");
}
void genmove() {
  int ret = B.endgame();
  if (ret != EMPTY) {
    fprintf(stderr, "game finished\n");
    if (ret == WHITE)
      fprintf(stderr, "white player wins\n");
    else
      fprintf(stderr, "black player wins\n");
    printf("= \n\n");
    return;
  }
  bt_move_t m = B.get_rand_move();
  B.play(m);
  if (verbose) {
    m.print(stderr, white_turn, B.nbl);
    fprintf(stderr, "\n");
  }
  white_turn = !white_turn;
  printf("= %s\n\n", m.tostr(B.nbl).c_str());
}
void play(char a, char b, char c, char d) {
  bt_move_t m;
  m.line_i = boardheight - (a - '0');
  m.col_i = b - 'a';
  m.line_f = boardheight - (c - '0');
  m.col_f = d - 'a';
  if (B.can_play(m)) {
    B.play(m);
    if (verbose) {
      m.print(stderr, white_turn, B.nbl);
      fprintf(stderr, "\n");
    }
    white_turn = !white_turn;
  } else {
    fprintf(stderr, "CANT play %d %d %d %d ?\n", m.line_i, m.col_i, m.line_f,
            m.col_f);
  }
  if (showboard_at_each_move)
    B.print_board(stderr);
  printf("= \n\n");
}
int main(int _ac, char **_av) {
  bool echo_on = false;
  setbuf(stdout, 0);
  setbuf(stderr, 0);
  if (verbose)
    fprintf(stderr, "rand_player started\n");
  char a, b, c, d; // for play cmd
  for (std::string line; std::getline(std::cin, line);) {
    if (verbose)
      fprintf(stderr, "rand_player receive %s\n", line.c_str());
    if (echo_on)
      if (verbose)
        fprintf(stderr, "%s\n", line.c_str());
    if (line.compare("quit") == 0) {
      printf("= \n\n");
      break;
    } else if (line.compare("echo ON") == 0)
      echo_on = true;
    else if (line.compare("echo OFF") == 0)
      echo_on = false;
    else if (line.compare("help") == 0)
      help();
    else if (line.compare("name") == 0)
      name();
    else if (sscanf(line.c_str(), "newgame %d %d\n", &boardheight,
                    &boardwidth) == 2)
      newgame();
    else if (line.compare("genmove") == 0)
      genmove();
    else if (sscanf(line.c_str(), "play %c%c%c%c\n", &a, &b, &c, &d) == 4)
      play(a, b, c, d);
    else if (line.compare("showboard") == 0)
      showboard();
    else if (line.compare(0, 2, "//") == 0)
      ; // just comments
    else
      fprintf(stderr, "???\n");
    if (echo_on)
      printf(">");
  }
  if (verbose)
    fprintf(stderr, "bye.\n");

  return 0;
}