////////////////////////////////////////////////////////////
//~ Bootstrap

void BootstrapCmdline(void)
{
  TempArena scratch = BeginScratchNoConflict();
  {
    StringList raw = GetRawCommandline();

    u64 tmp_args_count = 0;
    u64 tmp_positionals_count = 0;
    CommandlineArg *tmp_args = PushStructs(scratch.arena, CommandlineArg, raw.count);
    String *tmp_positionals = PushStructs(scratch.arena, String, raw.count);
    {
      String name = Zi;
      for (StringListNode *n = raw.first; n; n = n->next)
      {
        String s = n->s;
        if (StringBeginsWith(s, Lit("--")))
        {
          if (name.len > 0)
          {
            CommandlineArg *arg = &tmp_args[tmp_args_count++];
            arg->name = name;
            arg->exists = 1;
          }
          name = TrimLeft(s, Lit("--"));
        }
        else
        {
          if (name.len > 0)
          {
            CommandlineArg *arg = &tmp_args[tmp_args_count++];
            arg->name = name;
            arg->value = s;
            arg->exists = 1;
            name = Zstr;
          }
          else
          {
            tmp_positionals[tmp_positionals_count++] = s;
          }
        }
      }
      if (name.len > 0)
      {
        CommandlineArg *arg = &tmp_args[tmp_args_count++];
        arg->name = name;
        arg->exists = 1;
      }
    }

    Arena *perm = PermArena();
    Base.cmdline.positional_args_count = tmp_positionals_count;
    Base.cmdline.positional_args = PushStructsNoZero(perm, String, tmp_positionals_count);
    CopyStructs(Base.cmdline.positional_args, tmp_positionals, tmp_positionals_count);
    for (u64 i = 0; i < tmp_args_count; ++i)
    {
      CommandlineArg arg = tmp_args[i];
      CommandlineArgNode *n = PushStruct(perm, CommandlineArgNode);
      u64 hash = HashString(arg.name);
      u64 bin_idx = hash % countof(Base.cmdline.arg_bins);
      n->arg = arg;
      n->hash = hash;
      n->next = Base.cmdline.arg_bins[bin_idx];
      Base.cmdline.arg_bins[bin_idx] = n;
    }
  }
  EndScratch(scratch);
}

////////////////////////////////////////////////////////////
//~ Command line

String StringFromCommandlineIdx(i32 idx)
{
  String result = Zi;
  if (idx < Base.cmdline.positional_args_count)
  {
    result = Base.cmdline.positional_args[idx];
  }
  return result;
}

CommandlineArg CommandlineArgFromName(String name)
{
  CommandlineArg result = Zi;
  u64 hash = HashString(name);
  for (CommandlineArgNode *n = Base.cmdline.arg_bins[hash % countof(Base.cmdline.arg_bins)]; n; n = n->next)
  {
    if (n->hash == hash && MatchString(n->arg.name, name))
    {
      result = n->arg;
      break;
    }
  }
  return result;
}