#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;

use IO::File;
use File::Basename;
use MediaWiki::API;

my $config_fn = "/root/.pve-docs"; # format 'username:pw'

my $fh = IO::File->new("$config_fn") || 
    die "Please configure the mediawiki user/passswd in '$config_fn'\n";

my $api_url = "http://localhost/mediawiki/api.php";

my $config = <$fh>;
chomp $config;

my ($username, $passwd) = split(':', $config, 2);

my $mw = MediaWiki::API->new();
$mw->{config}->{api_url} = $api_url;

# log in to the wiki
$mw->login({ lgname => $username, lgpassword => $passwd })
    || die $mw->{error}->{code} . ': ' . $mw->{error}->{details};

sub update_page {
    my ($pagename, $include, $category) = @_;

    print "update mediawiki page: $pagename\n";

    my $ref = $mw->get_page( { title => $pagename } );
    my $page =  $ref->{'*'} || '';

    if ($page !~ m/^\{\{#pvedocs:.*\}\}\s*$/m) {
	$page = "{{#pvedocs:$include}}\n$page";
    } else {
	$page =~ s/^\{\{#pvedocs:.*\}\}\s*$/\{\{#pvedocs:$include\}\}\n/m;
    }

    if ($category) {
	my $catstr = "Category:$category";

	if ($page !~ m/^\[\[$catstr\]\]\s*$/m) {
	    $page .= "\n[[$catstr]]\n";
	}
    }
    
    my $timestamp = $ref->{timestamp};
    my $wcmd = {
	action => 'edit',
	title => $pagename,
	basetimestamp => $timestamp, # to avoid edit conflicts
	text => $page,
    };

    $mw->edit($wcmd) || 
	die $mw->{error}->{code} . ': ' . $mw->{error}->{details};
}

my $cat_refdoc = "Reference Documentation";

my $docs = {
    'chapter-ha-manager-plain.html' => {
	title => "High Availability",
	category => $cat_refdoc,
    },
    'chapter-pve-installation-plain.html' => {
	title => "Installation",
	category => $cat_refdoc,
    },
    'section-pve-usbstick-plain.html' => {
	title => "Install from USB Stick",
	category => $cat_refdoc,
    },
    'section-pve-system-requirements-plain.html' => {
	title => "System Requirements",
	category => $cat_refdoc,
    },
    'section-getting-help-plain.html' => {
	title => "Getting Help",
	category => $cat_refdoc,
    },
    'sysadmin-pve-network-plain.html' => {
	title => "Network Configuration",
	category => $cat_refdoc,
    },
    'sysadmin-pve-disk-health-monitoring-plain.html' => {
	title => "Disk Health Monitoring",
	category => $cat_refdoc,
    },
    'sysadmin-local-lvm-plain.html' => {
	title => "Logical Volume Manager (LVM)",
	category => $cat_refdoc,
    },
    'sysadmin-pve-package-repos-plain.html' => {
	title => "Package Repositories",
	category => $cat_refdoc,
    },
    'sysadmin-system-software-updates-plain.html' => {
	title => "System Software Updates",
	category => $cat_refdoc,
    },
    'chapter-sysadmin-plain.html' => {
	title => "Host System Administration",
	category => $cat_refdoc,
    },
    'chapter-pct-plain.html' => {
	title => "Linux Container",
	category => $cat_refdoc,
    },
    'chapter-pmxcfs-plain.html' => {
	title => "Proxmox Cluster File System (pmxcfs)",
	category => $cat_refdoc,
    },
    'chapter-pve-bibliography-plain.html' => {
	title => "Bibliography",
	category => $cat_refdoc,
    },
    'chapter-pvecm-plain.html' => {
	title => "Cluster Manager",
	category => $cat_refdoc,
    },
    'chapter-pve-faq-plain.html' => {
	title => "FAQ",
	category => $cat_refdoc,
    },
    'chapter-pve-firewall-plain.html' => {
	title => "Firewall",
	category => $cat_refdoc,
    },
    'chapter-pvesm-plain.html' => {
	title => "Storage",
	category => $cat_refdoc,
    },
    'chapter-pveum-plain.html' => {
	title => "User Management",
	category => $cat_refdoc,
    },
    'chapter-qm-plain.html' => {
	title => "Qemu/KVM Virtual Machines",
	category => $cat_refdoc,
    },
    'chapter-vzdump-plain.html' => {
	title => "Backup and Restore",
	category => $cat_refdoc,
    },
    'qm.conf.5-plain.html' => {
	title => "Manual: vm.conf",
	category => $cat_refdoc,
    },
    'pct.conf.5-plain.html' => {
	title => "Manual: pct.conf",
	category => $cat_refdoc,
    },
    'datacenter.cfg.5-plain.html' => {
	title => "Manual: datacenter.cfg",
	category => $cat_refdoc,
    },
    # Storage Plugins
    'pve-storage-dir-plain.html' => {
	title => "Storage: Directory",
	category => $cat_refdoc,
    },
    'pve-storage-glusterfs-plain.html' => {
	title => "Storage: GlusterFS",
	category => $cat_refdoc,
    },
    'pve-storage-iscsidirect-plain.html' => {
	title => "Storage: User Mode iSCSI",
	category => $cat_refdoc,
    },
    'pve-storage-iscsi-plain.html' => {
	title => "Storage: iSCSI",
	category => $cat_refdoc,
    },
    'pve-storage-lvm-plain.html' => {
	title => "Storage: LVM",
	category => $cat_refdoc,
    },
    'pve-storage-lvmthin-plain.html' => {
	title => "Storage: LVM Thin",
	category => $cat_refdoc,
    },
    'pve-storage-nfs-plain.html' => {
	title => "Storage: NFS",
	category => $cat_refdoc,
    },
    'pve-storage-rbd-plain.html' => {
	title => "Storage: RBD",
	category => $cat_refdoc,
    },
    'pve-storage-zfspool-plain.html' => {
	title => "Storage: ZFS",
	category => $cat_refdoc,
    },
};

#update_page("testpage1", $filename, $d->{category});

foreach my $filename (keys %$docs) {
    my $path = "/usr/share/pve-docs/$filename";
    die "no such file '$path'" if ! -f $path;
    my $d = $docs->{$filename};
    update_page($d->{title}, $filename, $d->{category});
}

# also update 'Get support' page, because this is used since a long
# time and is referenced from outside
update_page("Get support", 'sysadmin-getting-help-plain.html', 'HOWTO');