#!/usr/bin/perl -w
#
#  rhrdlibs
#
#  Copyright (C) 2015 Christian Pointner <equinox@helsinki.at>
#
#  This file is part of rhrdlibs.
#
#  rhrdlibs is free software: you can redistribute it and/or modify
#  it under the terms of the GNU Affero General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  any later version.
#
#  rhrdlibs 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 Affero General Public License for more details.
#
#  You should have received a copy of the GNU Affero General Public License
#  along with rhrdlibs. If not, see <http://www.gnu.org/licenses/>.
#

use strict;
use lib "../lib/";
use RHRD::rddb;

# this is ridiculous but makes it a little harder to create/remove users...
# if ($> != 0 ) {
#   print STDERR "this must be run as root!\n";
#   exit 1;
# }

sub print_usage
{
  print STDERR "Usage: rd-group list\n" .
               "       rd-group (check|remove|get-members|get-carts|get-reports) <groupname>\n" .
               "       rd-group add <groupname> [ <description> ]\n" .
               "       rd-group (add-member|remove-member|is-member) <groupname> <user>\n" .
               "       rd-group set-carts <groupname> [ <low> [ <high> [ <type> [ <enforce range> ]]]\n" .
               "       rd-group set-reports <groupname> [ <nownext> [ <traffic> [ <music> ]]]\n";
}

sub list
{
  my ($ctx) = @_;

  my @groups = RHRD::rddb::list_groups($ctx);
  if(!defined $groups[0] && defined $groups[1]) {
    print STDERR "$groups[1]: $groups[2]";
    return 1;
  }
  for my $group (@groups) {
    print $group . "\n";
  }
  return 0;
}

sub check
{
  my ($ctx, $groupname) = @_;

  my ($result, $status, $errorstring) = RHRD::rddb::check_group($ctx, $groupname);
  print STDERR "$result, $status: $errorstring\n";
  return $result;
}

sub add
{
  my ($ctx, $groupname, $description) = @_;

  my ($cnt, $status, $errorstring) = RHRD::rddb::add_group($ctx, $groupname, $description);
  unless(defined $cnt) {
    print STDERR "$errorstring\n";
    return 1;
  }
  print int($cnt) . " rows affected\n";
  return 0;
}

sub remove
{
  my ($ctx, $groupname) = @_;

  my @results = RHRD::rddb::remove_group($ctx, $groupname);
  if(!defined $results[0] && defined $results[2]) {
    print STDERR "$results[2]\n";
    return 1;
  }
  for my $href (@results) {
    print int($href->{cnt}) . " " . $href->{name} . " deleted\n";
  }
  return 0;
}

sub get_members
{
  my ($ctx, $groupname) = @_;

  my @users = RHRD::rddb::get_group_members($ctx, $groupname);
  if(!defined $users[0] && defined $users[1]) {
    print STDERR "$users[2]\n";
    return 1;
  }
  for my $user (sort @users) {
    print "$user\n";
  }
  return 0;
}

sub add_member
{
  my ($ctx, $groupname, $username) = @_;

  my ($cnt, undef, $errorstring) = RHRD::rddb::add_group_member($ctx, $groupname, $username);
  unless(defined $cnt) {
    print STDERR "$errorstring\n";
    return 1;
  }
  print int($cnt) . " rows affected\n";
  return 0;
}

sub remove_member
{
  my ($ctx, $groupname, $username) = @_;

  my ($cnt, undef, $errorstring) = RHRD::rddb::remove_group_member($ctx, $groupname, $username);
  unless(defined $cnt) {
    print STDERR "$errorstring\n";
    return 1;
  }
  print int($cnt) . " rows affected\n";
  return 0;
}

sub is_member
{
  my ($ctx, $groupname, $username) = @_;

  my ($cnt, undef, $errorstring) = RHRD::rddb::is_group_member($ctx, $groupname, $username);
  unless(defined $cnt) {
    print STDERR "$errorstring\n";
    return 1;
  }
  print $ARGV[2] . " is" . (($cnt) ? "" : " not") . " a member\n";
  return (($cnt) ? 0 : 1);
}

sub get_carts
{
  my ($ctx, $groupname) = @_;

  my ($low, $high, $type, $enforce_range) = RHRD::rddb::get_group_carts($ctx, $groupname);
  unless(defined $low) {
    print STDERR "$type\n";
    return 1;
  }
  print "Range: " . int($low) . " - " . int($high) . ", Type: " . int($type) . ", Enforce Range: " . $enforce_range . "\n";
  return 0;
}

sub set_carts
{
  my ($ctx, $groupname, $low_cart, $high_cart, $cart_type, $enforce_cart_range) = @_;

  my ($cnt, undef, $errorstring) = RHRD::rddb::set_group_carts($ctx, $groupname, $low_cart, $high_cart, $cart_type, $enforce_cart_range);
  unless(defined $cnt) {
    print STDERR "$errorstring\n";
    return 1;
  }
  print int($cnt) . " rows affected\n";
  return 0;
}

sub get_reports
{
  my ($ctx, $groupname) = @_;

  my ($nownext, $traffic, $music) = RHRD::rddb::get_group_reports($ctx, $groupname);
  unless(defined $nownext) {
    print STDERR "$music\n";
    return 1;
  }
  print "Now-Next: " . $nownext . ", Traffic: " . $traffic . ", Music: " . $music . "\n";
  return 0;
}

sub set_reports
{
  my ($ctx, $groupname, $now_next, $traffic, $music) = @_;

  my ($cnt, undef, $errorstring) = RHRD::rddb::set_group_reports($ctx, $groupname, $now_next, $traffic, $music);
  unless(defined $cnt) {
    print STDERR "$errorstring\n";
    return 1;
  }
  print int($cnt) . " rows affected\n";

  return 0;
}


my $num_args = $#ARGV + 1;
if($num_args < 1) {
  print_usage();
  exit(1);
}
my $cmd = $ARGV[0];
my $groupname = $ARGV[1];
my $ret = 0;

my ($ctx, $status, $errorstring) = RHRD::rddb::init();
if(defined $ctx) {
  if($cmd eq "list") {
    if($num_args != 1) {
      print_usage();
      $ret = 1;
    } else {
      $ret = list($ctx);
    }
  }
  elsif($cmd eq "check") {
    if($num_args != 2) {
      print_usage();
      $ret = 1;
    } else {
      $ret = check($ctx, $groupname);
    }
  }
  elsif($cmd eq "add") {
    if($num_args < 2 || $num_args > 3) {
      print_usage();
      $ret = 1;
    } else {
      $ret = add($ctx, $groupname, $ARGV[2]);
    }
  }
  elsif($cmd eq "remove") {
    if($num_args != 2) {
      print_usage();
      $ret = 1;
    } else {
      $ret = remove($ctx, $groupname);
    }
  }
  elsif($cmd eq "get-members") {
    if($num_args != 2) {
      print_usage();
      $ret = 1;
    } else {
      $ret = get_members($ctx, $groupname);
    }
  }
  elsif($cmd eq "add-member") {
    if($num_args != 3) {
      print_usage();
      $ret = 1;
    } else {
      $ret = add_member($ctx, $groupname, $ARGV[2]);
    }
  }
  elsif($cmd eq "remove-member") {
    if($num_args != 3) {
      print_usage();
      $ret = 1;
    } else {
      $ret = remove_member($ctx, $groupname, $ARGV[2]);
    }
  }
  elsif($cmd eq "is-member") {
    if($num_args != 3) {
      print_usage();
      $ret = 1;
    } else {
      $ret = is_member($ctx, $groupname, $ARGV[2]);
    }
  }
  elsif($cmd eq "get-carts") {
    if($num_args != 2) {
      print_usage();
      $ret = 1;
    } else {
      $ret = get_carts($ctx, $groupname);
    }
  }
  elsif($cmd eq "set-carts") {
    if($num_args < 2 || $num_args > 6) {
      print_usage();
      $ret = 1;
    } else {
      $ret = set_carts($ctx, $groupname, $ARGV[2], $ARGV[3], $ARGV[4], $ARGV[5]);
    }
  }
  elsif($cmd eq "get-reports") {
    if($num_args != 2) {
      print_usage();
      $ret = 1;
    } else {
      $ret = get_reports($ctx, $groupname);
    }
  }
  elsif($cmd eq "set-reports") {
    if($num_args < 2 || $num_args > 5) {
      print_usage();
      $ret = 1;
    } else {
      $ret = set_reports($ctx, $groupname, $ARGV[2], $ARGV[3], $ARGV[4]);
    }
  }
  else {
    print_usage();
    $ret = 1;
  }

  RHRD::rddb::destroy($ctx);
} else {
  print STDERR "$errorstring\n";
  $ret = 1;
}

exit $ret;