#!/usr/bin/perl

# Drakwizard

# Copyright (C) 2002 MandrakeSoft Mael Dodin (mdodin@mandrakesoft.com)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

use lib qw(/usr/lib/libDrakX);
use strict;
use vars qw($Wizard_title $Wizard_pix_up $lib_script $perl_module %variable $in $rpm %chooser_hash $welcome $perl_module_name $verbose %description);

use XML::Parser;
use standalone;
use interactive;
use MDK::Common::Func;
use common;

#- I18N.
push @::textdomains, 'drakwizard';

my $in = 'interactive'->vnew('su', 'default');
$::direct = /-direct/;
$::Wizard_no_previous = 1;
$::Wizard_title = "Drakwizard";
$::isWizard = 1;
my $standalone = 1;

! -r '/etc/sysconfig/network-scripts/drakconnect_conf' &&
  ( -r '/etc/sysconfig/network-scripts/draknet_conf' || 
    die "no drakconnect conf file found, install drakconnect and try again") &&
  MDK::Common::cp_af('/etc/sysconfig/network-scripts/draknet_conf',
		     '/etc/sysconfig/network-scripts/drakconnect_conf');

if (!defined($ARGV[0])) {
    my $prefix = "/usr/share/wizards/";
    my %wiz = (
	       1 => [$prefix."web_wizard/web.wiz", "Apache"],
	       2 => [$prefix."dhcp_wizard/dhcp.wiz", "Dhcp"],
	       3 => [$prefix."dns_wizard/dns.wiz", "Dns (configuration)"],
	       4 => [$prefix."client_wizard/client.wiz", "Dns (add client)"],
	       5 => [$prefix."news_wizard/news.wiz", "News"],
	       6 => [$prefix."nfs_wizard/nfs.wiz", "NFS"],
	       7 => [$prefix."postfix_wizard/postfix.wiz", "Postfix"],
	       8 => [$prefix."ftp_wizard/ftp.wiz", "Proftpd"],
	       9 => [$prefix."samba_wizard/samba.wiz", "Samba"],
	       10 => [$prefix."proxy_wizard/proxy.wiz", "Squid"],
	       11 => [$prefix."time_wizard/time.wiz", "Time"]
	      );
    $in->ask_from(
		  _("Drakwizard wizard selection"),
		  _("Please select a wizard"),
		  [{ val => \$ARGV[0], list => [sort keys %wiz], format => sub { $wiz{$_}[1] }}]
		 );
    $ARGV[0] = $wiz{$ARGV[0]}[0]; 
}

my $o = [];
my $xmltree = XML::Parser->new(Style => 'Tree')->parsefile($ARGV[0]);

get_parameter($o, $xmltree);
if (("@ARGV" =~ /--debug/)) {
    $::verbose = 1;
    navigation($o, $o->[0]);
}
else {
    no warnings;
    $::verbose = 0;
    eval { navigation($o, $o->[0]) };
}

$in->exit;

sub member { my $e = shift; foreach (@_) { $e eq $_ and return 1 } 0 }

sub get_parameter {
    my ($o, $tree, $tag ,$page) = @_;
    
    foreach my $leaf (@$tree) {
	if (ref($leaf) eq 'ARRAY') {
	    $page = get_parameter($o, $leaf, $tag, $page);
	} elsif (ref($leaf) eq 'HASH') {
	    my $common_freetext_chooser;
	    my %actions = (
			   Wizard => sub {
			       ($Wizard_title, $lib_script, $perl_module, $rpm, $Wizard_pix_up) = @{$leaf}{qw(wizardTitle libScript perlModule rpm defaultImage)};
			       if ($rpm) {
				   if (!$in->do_pkgs->is_installed($rpm)) {
				       if ($in->ask_okcancel("error", _("%s is not installed\nClick \"Next\" to install or \"Cancel\" to quit", c::from_utf8($rpm)))) {
					   if (!$in->do_pkgs->install($rpm eq 'bind' ? 'bind-9' : $rpm)) {
					       $::Wizard_finished = 1;
					       $in->ask_okcancel("error", _("installation failed"));
					       $in->exit;
					   }
				       }
				       else { $in->exit }
				   }
			       }
			       if ($perl_module) {
				   ($::perl_module_name) = ($perl_module =~ /.*\/(.*)\.pm/);
				   require $perl_module;
			       }
			   },
			   Variable => sub {
			       $variable{$leaf->{name}} = $leaf->{shellVariable};
			       $ENV{$variable{$leaf->{name}}} = $leaf->{defaultValue};
			   },
			   Page => sub {
			       !$welcome and $welcome = $page;
			       my $old_page = $page;
			       push @$o, $page = { %$leaf };
			       $old_page->{next_page} = $page;
			       if ($leaf->{canBack} =~ /.*false.*/) { $page->{no_prev} = 1}
			       if ($leaf->{canCancel} =~ /.*false.*/) { $page->{no_cancel} = 1}
			       if ($leaf->{nextFinish} =~ /.*true.*/) { $page->{finish} = 1}
			   },
			   Target => sub {
			       $page->{Target}->{jumpIndex}->{$leaf->{jumpIndex}} = $leaf->{targetName};
			   },
			   Info => sub {
			       # This is to avoid monospaced text to be interpolated
			       $leaf->{helpText} = translate($leaf->{helpText});
			       if ($leaf->{fontName} eq "Monospaced") {
			       	   chomp($leaf->{helpText});
				   $leaf->{helpText} = $leaf->{helpText} ? "$leaf->{helpText}\n$leaf->{helpText}" : "$leaf->{helpText}\n";
			       }
			       $page->{info} = $leaf->{helpText} ? "$page->{info}\n$leaf->{helpText}" : "$page->{info}\n";
			       if ($leaf->{fillScript}) {
				   $page->{info} .= translate(`source $lib_script; $leaf->{fillScript}`);
			       }
			       # XML compatibility
			       $page->{info} =~ s/\\\'/\'/g;
			       $page->{info} =~ s/\\q/\"/g;
			       $page->{info} =~ s/\\a/\&/g;
			       $page->{info} =~ s/\\n/\n/g;
			   },
			   Freetext => $common_freetext_chooser = sub {
			       push @{$page->{freetext}}, { %$leaf, main_order => 
							    (($tag eq 'Chooser') ? 'combo' 
							     : ($tag eq 'Boolean') ? 'bool' 
							     : ($leaf->{editable} eq 'true') ? 'entry'
							     : 'field')};
			   },
			   Chooser => \&$common_freetext_chooser,
			   Boolean => \&$common_freetext_chooser,
			   Option => sub {
			       push @{${$page->{freetext}}[-1]->{Option}}, $leaf->{description};
			       $chooser_hash{$leaf->{description}} = $leaf->{value};
			       $description{$leaf->{value}} = $leaf->{description};
			   });
	    $actions{$tag} and &{$actions{$tag}};
	}elsif($leaf=~ /\w\D/){
	    $tag = $leaf;
	}
    }
    $page;
}


sub find_page {
    my ($o, $name) = @_;
    $_->{name} eq $name and return $_ foreach @$o;
}

sub display {
    my ($o, $page) = @_;
    
    if ($page->{no_prev} || $page->{name} eq $welcome->{name}) {
	$::Wizard_no_previous = 1;
    }
    if ($page->{finish}) {
	$::Wizard_finished = 1;
	$::Wizard_no_cancel = 1;
    }
    if ($page->{nextFinish} eq 'true') {
        $::Wizard_no_previous = 1;
        $in->ask_okcancel(translate($page->{name}),
                          translate($page->{info})) or quit_global($in, 0);
	die;
    }
    elsif (!$page->{freetext}) {
	$in->ask_okcancel(translate($page->{name}),
			  translate($page->{info})) or navigation($o, $page->{old_page});
    }
    else {
	my $valeur;
	my @liste;
	my @data = map {
	    if ($_->{main_order} eq 'combo') {
		if($_->{fillScript}){
		    @liste = ();
		    $valeur = `. $lib_script && $_->{fillScript}`;
		    while( $valeur =~ /(.+)\n/g){
			push @liste, $1;
			$chooser_hash{$1} = $1;
		    }
		}
		else {
		    @liste = @{$_->{Option}};
		}
	    }
	    if ($_->{fillScript}) {
		$ENV{$variable{$_->{variableName}}} = `. $lib_script && $_->{fillScript}`;
	    }
	    elsif (!$ENV{$variable{$_->{variableName}}} && $_->{fillfunc}) {
		$ENV{$variable{$_->{variableName}}} = $::{$perl_module_name."::"}{"$_->{fillfunc}"}->();
	    }
	    chomp($ENV{$variable{$_->{variableName}}});
	    $ENV{$_->{variableName}} = $ENV{$variable{$_->{variableName}}};
	    ($_->{main_order} eq 'entry') ? { label => _($_->{helpText}),
					      val => \$ENV{$variable{$_->{variableName}}}, type => $_->{main_order} } 
	      : ($_->{main_order} eq 'bool') ? { val => \$ENV{$variable{$_->{variableName}}}, type => $_->{main_order},
						 text => translate($_->{helpText}) }
		: ($_->{main_order} eq 'field') ? { val => 
						    $description{$ENV{$variable{$_->{variableName}}}}? 
						    $description{$ENV{$variable{$_->{variableName}}}} :
						    $ENV{$variable{$_->{variableName}}},
						    label => $_->{helpText} }
		  : { label => $_->{helpText}, val => \$ENV{$variable{$_->{variableName}}},
			list => [@liste], type => $_->{main_order} };
	} @{$page->{freetext}};
	if($page->{executionLevel} eq 'NORMAL') {
	    $in->ask_from($page->{name}, translate($page->{info}), 
			  \@data) or navigation($o, $page->{old_page});
	    foreach(@{$page->{freetext}}) {
		if($_->{main_order} eq 'bool') {
		    $ENV{$variable{$_->{variableName}}} = $ENV{$variable{$_->{variableName}}} ? 1 : 0;
		    $description{$ENV{$variable{$_->{variableName}}}} = $ENV{$variable{$_->{variableName}}} ? _("enabled") : _("disabled");
		}
		elsif ($_->{main_order} eq 'combo') {
		    $ENV{$variable{$_->{variableName}}} = $chooser_hash{$ENV{$variable{$_->{variableName}}}};
		}
	    }
	}
    }
    undef $::Wizard_no_previous;
}

sub navigation {
    my ($o, $page, $previous_page) = @_;
    $page->{old_page} ||= $previous_page;
    
    display($o, $page);
    my ($next, $prev) = do {
	if (defined $perl_module_name && $page->{func}) {
	    my @func_arg = split(/\s/, $page->{func});
	    my $modStatus = $::{$perl_module_name."::"}{"$func_arg[0]"}->();
	    if ($page->{Target}->{jumpIndex}) {
		find_page($o, $page->{Target}->{jumpIndex}->{int($modStatus)}), $page;
	    }
	    else {
		$page->{next_page}, $page->{old_page};
	    }
	}
	elsif ($page->{jumpScript}) {
	    system("source $lib_script ; $page->{jumpScript}");
	    if ($page->{Target}->{jumpIndex}) {
		$? = $? >> 8;
		find_page($o, $page->{Target}->{jumpIndex}->{$?}), $page;
	    } 
	    else {
		$page->{next_page}, $page;
	    }
	}
	elsif ($page->{subWizard}) {
	    my $sub_o = [];
	    my $sub_xmltree = XML::Parser->new(Style => 'Tree')->parsefile($page->{subWizard});
	    get_parameter($sub_o, $sub_xmltree);
	    eval {navigation($sub_o, $sub_o->[0]); };
	    $in->exit if $@ =~ /^wizcancel/;
	    $page->{old_page}->{no_prev} = 1;
	    $o->[0], $page, undef;
	}
	elsif ($page->{jumpPage}) {
	    find_page($o, $page->{jumpPage}), $page;
	}
	else {
	    $page->{next_page}, $page;
	}
    };
    navigation($o, $next, $prev);
}