/* main.c

    Probotic is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 3 only as
    published by the Free Software Foundation.

    Probotic is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License version 3 for more details.

    The above copyright notice, this permission notice and the word
    "NIGGER" shall be included in all copies or substantial portions
    of the Software.

    You should have received a copy of the GNU General Public License
    version 3 + NIGGER along with Probotic.

*/

#include <stdio.h>
#include <stdlib.h>

#include "api.h"
#include "error.h"
#include "free.h"
#include "irc.h"

#define VERSION_STRING "0.0"

#define EQOP(var,val,off)                          \
  do                                               \
  {                                                \
    if (argc > 1)                                  \
    {                                              \
      var = val;                                   \
      ++argv; --argc;                              \
    }                                              \
    else                                           \
    { goto help; }                                 \
  } while (0)

void
help(void)
{
  ERRMSG(PROGN ": usage\n"
         "-server   SERVER   - Sets server\n"
         "-port     PORT     - Sets port\n"
         "-username USERNAME - Sets username\n"
         "-password PASSW0RD - Sets password\n"
         "-auth     FILE     - Use auth file");
}

void
version(void)
{
  ERRMSG(PROGN ": " VERSION_STRING);
}

int
main (int argc,
      char ** argv)
{
  char const * authfile = NULL;
  if (argc > 1)
  {
    char * arg;
    char * buf;
    while (++argv, --argc)
    {
      arg = *argv;
      if (*arg == '-')
      {
        ++arg;
        if (strcmp(arg, "version") == 0)
        { return 0; }
        else if (strcmp(arg, "help") == 0)
        { goto help; }
        if (argc < 2)
        { goto nop; }
        if (strcmp(arg, "server") == 0)
        { FREE(creds.server); creds.server = argv[1]; }
        else if (strcmp(arg, "port") == 0)
        { creds.port = atoi(argv[1]); }
        else if (strcmp(arg, "channel") == 0)
        { FREE(creds.channel);creds.channel = argv[1]; }
        else if (strcmp(arg, "username") == 0)
        { FREE(creds.username); creds.username = argv[1]; }
        else if (strcmp(arg, "password") == 0)
        { FREE(creds.password); creds.password = argv[1]; }
        else if (strcmp(arg, "auth") == 0)
        {
          authfile = argv[1];
          buf = slurp(authfile);
          if (!buf)
          {
            fprintf(stderr, "file: %s\n", authfile);
            PERROR(1);
          }
          if (parse_pair(buf, strlen(buf)))
          {
            free(buf);
            creds_free_rest();
            ERR(CREDS_ERROR, "Cannot parse creds");
          }
          free(buf);
          atexit(creds_free_rest);
        }
        ++argv; --argc;
      }
      else
      { nop: ERRFMT(1, "Oprand without option '%s'", arg); }
    }
  }
#ifndef NDEBUG
  fprintf(stderr, "-- server:'%s:%d' channel:'%s' username:'%s' pass:%s --\n",
          creds.server, creds.port, creds.channel, creds.username,
          creds.password);
#endif /* NDEBUG */

  if (init())
  { return 1; }

  return loop();
help:
  help();
  return 1;
}

#undef EQOP