#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>

#include "uci/state.h"
#include "uci/command.h"
#include "uci/response.h"

void load_from_message(ucicmd* cmd, const char* message) {
  char token[MAX_TOKEN_SIZE];
  int i = 0, k = 0;

  while (message[i] != 0 && message[i] != '\n' && message[i] != '\r') {
    if (message[i] != ' ') { 
      token[k++] = message[i++];
      continue;
    }
    if (k == 0) {
      i++;
      continue;
    }
    i++;
    token[k] = 0;
    ucicmd_add(cmd, token);
    k = 0;
  }
  token[k] = 0;
  ucicmd_add(cmd, token);
}

int main() {
  // https://stackoverflow.com/a/41559081
  fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK);

  uci_state state = {0};
  strncpy(state.name, "Gacrux", 32);
  strncpy(state.author, "Aargh Rai <aarghrai.com>", 32);
  int k = 0;
  state.option_settings[k++] = option_setting_spin("Threads", 1, 5, 1);
  state.option_settings[k++] = option_setting_spin("Hash", 0, 512, 256);
  state.option_settings[k++] = option_setting_button("Clear Hash");
	state.option_settings[k++] = option_setting_check("UCI_ShowCurrLine", false);
	state.option_settings[k++] = option_setting_check("UCI_ShowRefutations", false);
	state.option_settings[k++] = option_setting_check("UCI_LimitStrength", false);
	state.option_settings[k++] = option_setting_spin("UCI_Elo", 100, 3500, 800);
	state.option_settings[k++] = option_setting_check("UCI_AnalyseMode", false);
	state.option_settings[k++] = option_setting_string("UCI_Opponent", "<empty>");
	state.option_settings[k++] = option_setting_string("UCI_EngineAbout", "Gacrux by Aargh Rai, Checkout https://git.aarghrai.com/gacrux");
	state.option_settings[k++] = option_setting_string("UCI_SetPositionValue", "<empty>");
  ucicmd cmd = ucicmd_init();
  size_t n;
  char buf[1024];
  while (true) {
    cmd.empty = true;
    cmd.args_count = 0;
    ssize_t n = read(STDIN_FILENO, buf, sizeof(buf));
    if (n > 0) {
      load_from_message(&cmd, buf);
    }
    handle_uci(&state, cmd);
  }
}

#include "uci/command.c"
#include "uci/response.c"
#include "uci/state.c"