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

# cpanel - scripts/update_existing_mail_quotas_for_account
#                                                  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::update_existing_mail_quotas_for_account;

use cPstrict;

use parent qw( Cpanel::HelpfulScript );

use Cpanel::AcctUtils::Account ();
use Cpanel::Config::Users      ();
use Cpanel::JSON               ();
use Cpanel::PIDFile            ();
use Cpanel::SafeRun::Errors    ();

use Try::Tiny;

=encoding utf-8

=head1 NAME

scripts::update_existing_mail_quotas_for_account

=head1 SYNOPSIS

    update_existing_mail_quotas_for_account [ --all --quota <quota_in_megabytes> | --user <username> --quota <quota_in_megabytes> | --help ]

    NOTE: <quota_in_megabytes> must be a positive integer.  Use 0 for unlimited or maximum allowed quota (based on MAX_EMAILACCT_QUOTA for account).

=head1 DESCRIPTION

This command will update the quota for all existing email accounts for a given user
or for all users on the system

=cut

our $PID_FILE = '/var/run/update_existing_mail_quotas_for_account.pid';

# Use bin/uapi instead of Cpanel::API::execute because this script is uncompiled
# and the API code we need is not shipped
our $uapi_bin = '/usr/local/cpanel/bin/uapi';

sub _OPTIONS {
    return qw( user=s all quota=i );
}

__PACKAGE__->new(@ARGV)->script() unless caller();

sub script ($self) {

    my $quota = $self->getopt('quota');
    if ( !defined $quota || $quota < 0 ) {
        print "\n" . $self->help();
        return;
    }

    if ( $self->getopt('user') ) {
        my $user = $self->getopt('user');
        print "Changing quota to ‘${quota}MB’ for all email accounts owned by the user ‘$user’\n";

        try {
            $self->call_for_one_user( $user, $quota );
        }
        catch {
            warn "There was an error updating the quotas of all email addresses for ‘$user’: $_\n";
        };

        return;
    }
    elsif ( !$self->getopt('all') ) {
        print "\n" . $self->help();
        return;
    }

    Cpanel::PIDFile->do(
        $PID_FILE,
        sub {
            print "Changing quota to ‘${quota}MBs’ for all email accounts of all users\n";

            for my $user ( Cpanel::Config::Users::getcpusers() ) {
                try {
                    $self->call_for_one_user( $user, $quota );
                }
                catch {
                    warn "There was an error updating the quotas of all email addresses for ‘$user’: $_\n";
                };
            }
        }
    );

    return;
}

sub call_for_one_user ( $self, $user, $quota ) {

    Cpanel::AcctUtils::Account::accountexists_or_die($user);

    my $mail_accounts = $self->get_mail_accounts($user);
    foreach my $mail_account (@$mail_accounts) {
        my ( $email, $domain ) = split /@/, $mail_account;
        try {
            print "… updating ‘$mail_account’ account for ‘$user’ user\n";
            $self->update_mail_quota( { user => $user, quota => $quota, email => $email, domain => $domain } );
        }
        catch {
            warn "There was an error updating the quota for ‘$mail_account’: $_\n";
        };
    }

    return;
}

sub update_mail_quota ( $self, $opts ) {

    my $json = Cpanel::SafeRun::Errors::saferunnoerror(
        $uapi_bin,
        $< ? () : ( '--user', $opts->{user} ),    # if we are running as root, we need to tell it which user to run the API call for
        '--output', 'json',
        'Email',    'edit_pop_quota',
        'email',    $opts->{email},
        'domain',   $opts->{domain},
        'quota',    $opts->{quota},
    );
    my $res = Cpanel::JSON::Load($json);

    if ( !$res->{result}{status} ) {
        my $errors = join( "\n", @{ $res->{result}{errors} } );
        die "Email::list_pops API call failed:  $errors";
    }

    return;
}

sub get_mail_accounts ( $self, $user ) {

    my $json = Cpanel::SafeRun::Errors::saferunnoerror(
        $uapi_bin,
        $< ? () : ( '--user', $user ),    # if we are running as root, we need to tell it which user to run the API call for
        '--output', 'json',
        'Email',    'list_pops',
    );
    my $res = Cpanel::JSON::Load($json);

    if ( !$res->{result}{status} ) {
        my $errors = join( "\n", @{ $res->{result}{errors} } );
        die "Email::list_pops API call failed:  $errors";
    }

    my $data     = $res->{result}{data};
    my $accounts = [];
    foreach my $account_href ( @{ $res->{result}{data} } ) {
        next if $account_href->{login} eq 'Main Account';
        push @$accounts, $account_href->{login};
    }

    return $accounts;
}

1;