/*

 *

 * Copyright (c) 2016 Nest Labs, Inc.

 * All rights reserved.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 */

#ifndef UTIL_ARGS_HEADER_INCLUDED

#define UTIL_ARGS_HEADER_INCLUDED 1

#include <stdio.h>

#include <string.h>

#include <stdbool.h>

typedef struct {

  char shortarg;

  const char* longarg;

  const char* param;

  const char* desc;

} arg_list_item_t;

static inline void

print_arg_list_help(

    const arg_list_item_t arg_list[],

    const char*                             command_name,

    const char*                             syntax

    )

{

  int i;

  printf("Syntax:\n");

  printf("   %s %s\n", command_name, syntax);

  printf("Options:\n");

  for (i = 0; arg_list[i].desc; ++i) {

    if (arg_list[i].shortarg)

      printf("   -%c", arg_list[i].shortarg);

    else

      printf("     ");

    if (arg_list[i].longarg) {

      if (arg_list[i].shortarg)

        printf("/");

      else

        printf(" ");

      printf("--%s%s",

             arg_list[i].longarg,

             &"                    "[strlen(arg_list[i].longarg)]);

    } else {

      printf("                       ");

    }

    if (arg_list[i].param != NULL) {

      printf(" %s [%s]\n", arg_list[i].desc, arg_list[i].param);

    } else {

      printf(" %s\n", arg_list[i].desc);

    }

  }

}

#endif // UTIL_ARGS_HEADER_INCLUDED