#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/dav_change_hostname             Copyright 2022 cPanel, L.L.C.
#                                                           All rights reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

package scripts::dav_change_hostname;

use strict;
use Getopt::Long ();

use Cpanel::DAV::Hostname                        ();
use Cpanel::iContact::Class::DAV::ChangeHostname ();
use Cpanel::Logger::Aggregator                   ();
use Cpanel::Imports;

exit main(@ARGV) unless caller;

sub main {
    my @args = my @orig_args = @_;
    my ( $old_hostname, $new_hostname, $verbose, $notify, $help, $users );
    my $log_aggregator = Cpanel::Logger::Aggregator->new();

    Getopt::Long::GetOptionsFromArray(
        \@args,
        'old=s'   => \$old_hostname,
        'new=s'   => \$new_hostname,
        'user=s@' => \$users,
        'verbose' => \$verbose,
        'notify'  => \$notify,
        'help'    => \$help
      )
      and $old_hostname
      and $new_hostname
      and !@args
      or _die_usage(@orig_args);

    _exit_usage(@orig_args) if $help;

    $log_aggregator->info( locale->maketext( 'The system will now change the calendar and address book hostnames from “[_1]” to “[_2]”.', $old_hostname, $new_hostname ) );

    my $result = Cpanel::DAV::Hostname::change_host_name( $old_hostname, $new_hostname, { callback => \&callback, verbose => $verbose, users => $users } );

    my $ok = 0;
    if ( $result->{status} ) {
        $log_aggregator->info( locale->maketext( 'The system successfully updated the hostnames for all [numf,_1] users.', scalar( @{ $result->{success} } ) ) );
        $ok = 1;
    }
    elsif ( !@{ $result->{success} } && !@{ $result->{failures} } ) {
        $log_aggregator->info( locale->maketext('No users require a hostname update.') );
        $ok = 1;
    }
    else {
        if ( @{ $result->{success} } ) {
            $log_aggregator->info( locale->maketext( 'The system successfully updated the hostnames for [numf,_1] users.', scalar( @{ $result->{success} } ) ) );
        }
        $log_aggregator->info( locale->maketext('The system failed to update some of the hostnames with the following errors:') );
        $log_aggregator->info("$_->{user}: $_->{exception}") for @{ $result->{failures} };
    }

    if ($notify) {
        Cpanel::iContact::Class::DAV::ChangeHostname->new( old_hostname => $old_hostname, new_hostname => $new_hostname, detail => $log_aggregator->as_text, status => $ok );
    }

    return $ok ? 0 : 1;
}

sub callback {
    my ( $method, $msg ) = @_;
    my $fn = logger->can($method);
    if ($fn) {
        $fn->($msg);
    }
    else {
        logger->info($msg);
    }
    return;
}

sub _die_usage {
    my @orig_args = @_;
    print <<EOU;
Invalid argument set: @orig_args

EOU
    die _usage();
}

sub _exit_usage {
    print _usage();
    exit;
}

sub _usage {

    return <<EOU;
usage: $0 --old <old hostname> --new <new hostname> --verbose

This script updates stored calendar and address book data for all users on the system to
reflect a new hostname. It should be called at or near the same time that the server
hostname is changed.

Options:

--verbose - If passed will generate more verbose output.
--user    - One or more users. If not provided, the script will run for all users on the system.
--notify  -  If provided, the script will send a notification to the server contact upon
             success or failure with additional detail about the outcome of the run.
EOU
}

1;