/* This file is in the public domain. */

#include <stdlib.h>
#include <strings.h>

extern const char *__progname;

#include "ui.h"
#include "git-intf.h"

static int n_diff_args = 0;
static char **diff_args = 0;
static int n_new_files = 0;
static char **new_files = 0;

static void save_diff_arg(char *arg)
{
 diff_args = realloc(diff_args,(n_diff_args+1)*sizeof(*diff_args));
 diff_args[n_diff_args++] = arg;
}

static char **diff_args_list(void)
{
 save_diff_arg(0);
 return(diff_args);
}

/*
 * Warning: removing the funny-characters check here means updating the
 *  code over in git-intf.c (newfile_hunks) to match!
 */
static void save_new_file(char *arg)
{
 if (arg && git_confusing_name(arg))
  { printf("%s: %s: name likely to confuse git\n",__progname,arg);
    exit(1);
  }
 new_files = realloc(new_files,(n_new_files+1)*sizeof(*new_files));
 new_files[n_new_files++] = arg;
}

static char **new_files_list(void)
{
 save_new_file(0);
 return(new_files);
}

static void handleargs(int ac, char **av)
{
 int skip;
 int errs;

 skip = 0;
 errs = 0;
 for (ac--,av++;ac;ac--,av++)
  { if (skip > 0)
     { skip --;
       continue;
     }
    if (**av != '-')
     { fprintf(stderr,"%s: stray argument `%s'\n",__progname,*av);
       errs ++;
       continue;
     }
    if (0)
     {
needarg:;
       fprintf(stderr,"%s: %s needs a following argument\n",__progname,*av);
       errs ++;
       continue;
     }
#define WANTARG() do { if (++skip >= ac) goto needarg; } while (0)
    if (!strcmp(*av,"-diff"))
     { WANTARG();
       save_diff_arg(av[skip]);
       continue;
     }
    if (!strcmp(*av,"-new"))
     { WANTARG();
       save_new_file(av[skip]);
       continue;
     }
    if (!strcmp(*av,"-save-fast-import"))
     { WANTARG();
       git_save_fast_import(av[skip]);
       continue;
     }
#undef WANTARG
    fprintf(stderr,"%s: unrecognized option `%s'\n",__progname,*av);
    errs ++;
  }
 if (errs) exit(1);
}

int main(int, char **);
int main(int ac __attribute__((__unused__)), char **av)
{
 handleargs(ac,av);
 git_check_dir();
 git_user_info();
 git_initial_diff(diff_args_list(),new_files_list());
 git_initial_contents();
 ui_main_loop();
 return(0);
}