# vim: set et ts=4 sw=4: package AdminPanel::Shared::GUI; #============================================================= -*-perl-*- =head1 NAME Shared::GUI - Shared graphic routines =head1 SYNOPSIS my $gui = AdminPanel::Shared::GUI->new(); my $yesPressed = $gui->ask_YesOrNo($title, $text); =head1 DESCRIPTION This module contains a collection of dialogs or widgets that can be used in more graphics modules. =head1 EXPORT exported =head1 SUPPORT You can find documentation for this module with the perldoc command: perldoc Shared::GUI =head1 AUTHOR Angelo Naselli =head1 COPYRIGHT and LICENSE Copyright (C) 2014, Angelo Naselli. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2, as published by the Free Software Foundation. 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 =head1 METHODS =cut use Moose; use diagnostics; use yui; use AdminPanel::Shared qw(pathList2hash); use AdminPanel::Shared::Locales; has 'loc' => ( is => 'rw', init_arg => undef, builder => '_localeInitialize' ); sub _localeInitialize { my $self = shift(); # TODO fix domain binding for translation $self->loc(AdminPanel::Shared::Locales->new(domain_name => 'libDrakX-standalone') ); # TODO if we want to give the opportunity to test locally add dir_name => 'path' } #============================================================= =head2 warningMsgBox =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title text => string to be swhon into the dialog richtext => 1 if using rich text =head3 DESCRIPTION This function creates an Warning dialog and show the message passed as input. =cut #============================================================= sub warningMsgBox { my ($self, $info) = @_; return 0 if ( ! $info ); my $retVal = 0; yui::YUI::widgetFactory; my $factory = yui::YExternalWidgets::externalWidgetFactory("mga"); $factory = yui::YMGAWidgetFactory::getYMGAWidgetFactory($factory); my $dlg = $factory->createDialogBox($yui::YMGAMessageBox::B_ONE, $yui::YMGAMessageBox::D_WARNING); $dlg->setTitle($info->{title}) if (exists $info->{title}); my $rt = (exists $info->{richtext}) ? $info->{richtext} : 0; $dlg->setText($info->{text}, $rt) if (exists $info->{text}); $dlg->setButtonLabel($self->loc->N("Ok"), $yui::YMGAMessageBox::B_ONE ); # $dlg->setMinSize(50, 5); $retVal = $dlg->show(); $dlg = undef; return 1; } #============================================================= =head2 infoMsgBox =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title text => string to be swhon into the dialog richtext => 1 if using rich text =head3 DESCRIPTION This function creates an Info dialog and show the message passed as input. =cut #============================================================= sub infoMsgBox { my ($self, $info) = @_; return 0 if ( ! $info ); my $retVal = 0; yui::YUI::widgetFactory; my $factory = yui::YExternalWidgets::externalWidgetFactory("mga"); $factory = yui::YMGAWidgetFactory::getYMGAWidgetFactory($factory); my $dlg = $factory->createDialogBox($yui::YMGAMessageBox::B_ONE, $yui::YMGAMessageBox::D_INFO); $dlg->setTitle($info->{title}) if (exists $info->{title}); my $rt = (exists $info->{richtext}) ? $info->{richtext} : 0; $dlg->setText($info->{text}, $rt) if (exists $info->{text}); $dlg->setButtonLabel($self->loc->N("Ok"), $yui::YMGAMessageBox::B_ONE ); # $dlg->setMinSize(50, 5); $retVal = $dlg->show(); $dlg = undef; return 1; } #============================================================= =head2 msgBox =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title text => string to be swhon into the dialog richtext => 1 if using rich text =head3 DESCRIPTION This function creates a dialog and show the message passed as input. =cut #============================================================= sub msgBox { my ($self, $info) = @_; return 0 if ( ! $info ); my $retVal = 0; yui::YUI::widgetFactory; my $factory = yui::YExternalWidgets::externalWidgetFactory("mga"); $factory = yui::YMGAWidgetFactory::getYMGAWidgetFactory($factory); my $dlg = $factory->createDialogBox($yui::YMGAMessageBox::B_ONE); $dlg->setTitle($info->{title}) if (exists $info->{title}); my $rt = (exists $info->{richtext}) ? $info->{richtext} : 0; $dlg->setText($info->{text}, $rt) if (exists $info->{text}); $dlg->setButtonLabel($self->loc->N("Ok"), $yui::YMGAMessageBox::B_ONE ); # $dlg->setMinSize(50, 5); $retVal = $dlg->show(); $dlg = undef; return 1; } #============================================================= =head2 ask_OkCancel =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title text => string to be swhon into the dialog richtext => 1 if using rich text =head3 OUTPUT 0: Cancel button has been pressed 1: Ok button has been pressed =head3 DESCRIPTION This function create an OK-Cancel dialog with a 'title' and a 'text' passed as parameters. =cut #============================================================= sub ask_OkCancel { my ($self, $info) = @_; return 0 if ( ! $info ); my $retVal = 0; yui::YUI::widgetFactory; my $factory = yui::YExternalWidgets::externalWidgetFactory("mga"); $factory = yui::YMGAWidgetFactory::getYMGAWidgetFactory($factory); my $dlg = $factory->createDialogBox($yui::YMGAMessageBox::B_TWO); $dlg->setTitle($info->{title}) if (exists $info->{title}); my $rt = (exists $info->{richtext}) ? $info->{richtext} : 0; $dlg->setText($info->{text}, $rt) if (exists $info->{text}); $dlg->setButtonLabel($self->loc->N("Ok"), $yui::YMGAMessageBox::B_ONE ); $dlg->setButtonLabel($self->loc->N("Cancel"), $yui::YMGAMessageBox::B_TWO); $dlg->setDefaultButton($yui::YMGAMessageBox::B_ONE); $dlg->setMinSize(50, 5); $retVal = $dlg->show() == $yui::YMGAMessageBox::B_ONE ? 1 : 0; $dlg = undef; return $retVal; } #============================================================= =head2 ask_YesOrNo =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title text => string to be swhon into the dialog richtext => 1 if using rich text default_button => (optional) 1: "Yes" (any other values "No") =head3 OUTPUT 0: "No" button has been pressed 1: "Yes" button has been pressed =head3 DESCRIPTION This function create a Yes-No dialog with a 'title' and a question 'text' passed as parameters. =cut #============================================================= sub ask_YesOrNo { my ($self, $info) = @_; return 0 if ( ! $info ); my $retVal = 0; yui::YUI::widgetFactory; my $factory = yui::YExternalWidgets::externalWidgetFactory("mga"); $factory = yui::YMGAWidgetFactory::getYMGAWidgetFactory($factory); my $dlg = $factory->createDialogBox($yui::YMGAMessageBox::B_TWO); $dlg->setTitle($info->{title}) if (exists $info->{title}); my $rt = (exists $info->{richtext}) ? $info->{richtext} : 0; $dlg->setText($info->{text}, $rt) if (exists $info->{text}); $dlg->setButtonLabel($self->loc->N("Yes"), $yui::YMGAMessageBox::B_ONE ); $dlg->setButtonLabel($self->loc->N("No"), $yui::YMGAMessageBox::B_TWO); if (exists $info->{default_button} && $info->{default_button} == 1) { $dlg->setDefaultButton($yui::YMGAMessageBox::B_ONE); } else { $dlg->setDefaultButton($yui::YMGAMessageBox::B_TWO); } $dlg->setMinSize(50, 5); $retVal = $dlg->show() == $yui::YMGAMessageBox::B_ONE ? 1 : 0; $dlg = undef; return $retVal; } #============================================================= =head2 arrayListToYItemCollection =head3 INPUT $listInfo: HASH reference containing default_item => Selected item (if any) item_list => ARRAY reference containing the item list =head3 OUTPUT $itemList: YItemCollection containing the item list passed =head3 DESCRIPTION This method returns a YItemCollection containing the item list passed with default item the "default_item" =cut #============================================================= sub arrayListToYItemCollection { my ($self, $listInfo) = @_; die "Item list is mandatory" if !($listInfo->{item_list}); # TODO check type die "Not empty item list is mandatory" if (scalar @{$listInfo->{item_list}} < 1); my $itemColl = new yui::YItemCollection; foreach (@{$listInfo->{item_list}}) { my $item = new yui::YItem ($_, 0); $itemColl->push($item); $item->DISOWN(); if ($listInfo->{default_item} && $listInfo->{default_item} eq $item->label()) { $item->setSelected(1); } } return $itemColl; } #============================================================= =head2 ask_fromList =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title header => combobox header default_item => selected item if any list => item list default_button => (optional) 1: Select (any other values Cancel) =head3 OUTPUT undef: if Cancel button has been pressed selected item: if Select button has been pressed =head3 DESCRIPTION This function create a dialog with a combobox in which to choose an item from a given list. =cut #============================================================= sub ask_fromList { my ($self, $info) = @_; die "Missing dialog information" if (!$info); die "Title is mandatory" if (! exists $info->{title}); die "Header is mandatory" if (! exists $info->{header}); die "List is mandatory" if (! exists $info->{list} ); my $list = $info->{list}; die "At least one element is mandatory into list" if (scalar(@$list) < 1); my $choice = undef; my $factory = yui::YUI::widgetFactory; ## push application title my $appTitle = yui::YUI::app()->applicationTitle(); ## set new title to get it in dialog yui::YUI::app()->setApplicationTitle($info->{title}); my $dlg = $factory->createPopupDialog($yui::YDialogNormalColor); my $layout = $factory->createVBox($dlg); my $combo = $factory->createComboBox($layout, $info->{header}, 0); my $listInfo; $listInfo->{default_item} = $info->{default_item} if $info->{default_item}; $listInfo->{item_list} = $info->{list}; my $itemColl = $self->arrayListToYItemCollection($listInfo); $combo->addItems($itemColl); my $align = $factory->createRight($layout); my $hbox = $factory->createHBox($align); my $selectButton = $factory->createPushButton($hbox, $self->loc->N("Select")); my $cancelButton = $factory->createPushButton($hbox, $self->loc->N("Cancel")); if (exists $info->{default_button} ) { my $dflBtn = ($info->{default_button} == 1) ? $selectButton : $cancelButton; $dlg->setDefaultButton($selectButton); } while (1) { my $event = $dlg->waitForEvent(); my $eventType = $event->eventType(); #event type checking if ($eventType == $yui::YEvent::CancelEvent) { last; } elsif ($eventType == $yui::YEvent::WidgetEvent) { # widget selected my $widget = $event->widget(); if ($widget == $cancelButton) { last; } elsif ($widget == $selectButton) { my $item = $combo->selectedItem(); $choice = $item->label() if ($item); last; } } } destroy $dlg; #restore old application title yui::YUI::app()->setApplicationTitle($appTitle); return $choice; } #============================================================= =head2 AboutDialog =head3 INPUT $info: HASH containing optional information needed to get info for dialog. name => the application name version => the application version license => the application license, the short length one (e.g. GPLv2, GPLv3, LGPLv2+, etc) authors => the string providing the list of authors; it could be html-formatted description => the string providing a brief description of the application logo => the string providing the file path for the application logo (high-res image) icon => the string providing the file path for the application icon (low-res image) credits => the application credits, they can be html-formatted information => other extra informations, they can be html-formatted dialog_mode => 1: classic style dialog, any other as tabbed style dialog =head3 DESCRIPTION About dialog implementation, this dialog can be used by modules, to show authors, license, credits, etc. =cut #============================================================= sub AboutDialog { my ($self, $info) = @_; die "Missing dialog information" if (!$info); yui::YUI::widgetFactory; my $factory = yui::YExternalWidgets::externalWidgetFactory("mga"); $factory = yui::YMGAWidgetFactory::getYMGAWidgetFactory($factory); my $name = (exists $info->{name}) ? $info->{name} : ""; my $version = (exists $info->{version}) ? $info->{version} : ""; my $license = (exists $info->{license}) ? $info->{license} : ""; my $authors = (exists $info->{authors}) ? $info->{authors} : ""; my $description = (exists $info->{description}) ? $info->{description} : ""; my $logo = (exists $info->{logo}) ? $info->{logo} : ""; my $icon = (exists $info->{icon}) ? $info->{icon} : ""; my $credits = (exists $info->{credits}) ? $info->{credits} : ""; my $information = (exists $info->{information}) ? $info->{information} : ""; my $dialog_mode = $yui::YMGAAboutDialog::TABBED; if (exists $info->{dialog_mode}) { $dialog_mode = $yui::YMGAAboutDialog::CLASSIC if ($info->{dialog_mode} == 1); } my $dlg = $factory->createAboutDialog($name, $version, $license, $authors, $description, $logo, $icon, $credits, $information ); $dlg->show($dialog_mode); $dlg = undef; return 1; } #============================================================= =head2 hashTreeToYItemCollection =head3 INPUT $treeInfo: HASH reference containing parent ==> YItem parent (if not root object) collection ==> YItemCollection (mandatory) default_item ==> Selected item (if any) default_item_separator ==> If default item is passed and is a path like string the separator is needed to match the selected item, using the full pathname instead leaf (e.g. root/subroot/leaf). Default separator is also needed if '$treeInfo->{icons} entry is passed to match the right icon to set (e.g. using the full pathname). hash_tree ==> HASH reference containing the path tree representation icons ==> HASH reference containing item icons e.g. { root => 'root_icon_pathname', root/subroot => 'root_subroot_icon_pathname', .... } Do not add it if no icons are wanted. default_icon ==> icon pathname to a default icon for all the items that are not into $treeInfo->{icons} or if $treeInfo->{icons} is not defined. Leave undef if no default icon is wanted =head3 DESCRIPTION This function add to the given $treeInfo->{collection} new tree items from the the given $treeInfo->{hash_tree} =cut #============================================================= sub hashTreeToYItemCollection { my ($self, $treeInfo) = @_; die "Collection is mandatory" if !($treeInfo->{collection}); die "Hash tree is mandatory" if !($treeInfo->{hash_tree}); my $treeLine = $treeInfo->{parent}; my $item; foreach my $key (sort keys %{$treeInfo->{hash_tree}}) { if ($treeInfo->{parent}) { $item = new yui::YTreeItem ($treeLine, $key); $item->DISOWN(); } else { if ($treeLine) { if ( $treeLine->label() eq $key) { $item = $treeLine; } else { $treeInfo->{collection}->push($treeLine); $item = $treeLine = new yui::YTreeItem ($key); $item->DISOWN(); } } else { $item = $treeLine = new yui::YTreeItem ($key); $item->DISOWN(); } } # building full path name my $label = $key; if (exists $treeInfo->{default_item_separator}) { my $parent = $item; while($parent = $parent->parent()) { $label = $parent->label() . $treeInfo->{default_item_separator} . $label ; } } my $icon = undef; $icon = $treeInfo->{default_icon} if defined($treeInfo->{default_icon}); $icon = $treeInfo->{icons}->{$label} if defined($treeInfo->{icons}) && defined($treeInfo->{icons}->{$label}); $item->setIconName($icon) if $icon; ### select item if ($treeInfo->{default_item}) { if ($treeInfo->{default_item} eq $label) { $item->setSelected(1) ; $item->setOpen(1); my $parent = $item; while($parent = $parent->parent()) { $parent->setOpen(1); } } } if ($treeInfo->{hash_tree}->{$key} && keys %{$treeInfo->{hash_tree}->{$key}}) { my %tf; $tf{collection} = $treeInfo->{collection}; $tf{parent} = $item; $tf{default_item} = $treeInfo->{default_item} if $treeInfo->{default_item}; $tf{default_item_separator} = $treeInfo->{default_item_separator} if $treeInfo->{default_item_separator}; $tf{hash_tree} = $treeInfo->{hash_tree}->{$key}; $tf{icons} = $treeInfo->{icons}; $self->hashTreeToYItemCollection(\%tf); } else { if (! $treeInfo->{parent}) { $treeInfo->{collection}->push($treeLine); $treeLine = undef; } } } if (! $treeInfo->{parent}) { $treeInfo->{collection}->push($treeLine) if $treeLine; } } #============================================================= =head2 ask_fromTreeList =head3 INPUT $info: HASH, information to be passed to the dialog. title => dialog title header => TreeView header list => path item list min_size => minimum dialog size in the libYUI meaning HASH {width => w, height => h} default_item => selected item if any item_separator => item separator default "/" skip_path => if set item is returned without its original path, just as a leaf (default use full path) any_item_selection => allow to select any item, not just leaves (default just leaves) default_button => (optional) 1: Select (any other values Cancel) =head3 OUTPUT undef: if Cancel button has been pressed selected item: if Select button has been pressed =head3 DESCRIPTION This function create a dialog with a combobox in which to choose an item from a given list. =cut #============================================================= sub ask_fromTreeList { my ($self, $info) = @_; die "Missing dialog information" if (!$info); die "Title is mandatory" if (! exists $info->{title}); die "Header is mandatory" if (! exists $info->{header}); die "List is mandatory" if (! exists $info->{list} ); my $list = $info->{list}; die "At least one element is mandatory into list" if (scalar(@$list) < 1); my $choice = undef; my $factory = yui::YUI::widgetFactory; ## push application title my $appTitle = yui::YUI::app()->applicationTitle(); ## set new title to get it in dialog yui::YUI::app()->setApplicationTitle($info->{title}); my $minWidth = 80; my $minHeight = 25; if (exists $info->{min_size}) { $minWidth = $info->{min_size}->{width} if $info->{min_size}->{width}; $minHeight = $info->{min_size}->{height} if $info->{min_size}->{height}; } my $dlg = $factory->createPopupDialog($yui::YDialogNormalColor); my $minSize = $factory->createMinSize( $dlg, $minWidth, $minHeight ); my $layout = $factory->createVBox($minSize); my $treeWidget = $factory->createTree($layout, $info->{header}); my $treeInfo; $treeInfo->{collection} = new yui::YItemCollection; $treeInfo->{default_item} = $info->{default_item} if $info->{default_item}; if ($treeInfo->{default_item} && $info->{item_separator}) { if (index($treeInfo->{default_item}, $info->{item_separator}) != -1) { $treeInfo->{default_item_separator} = $info->{item_separator}; } } my $list2Convert; $list2Convert->{paths} = $info->{list}; $list2Convert->{separator} = $info->{item_separator} if $info->{item_separator}; $treeInfo->{hash_tree} = AdminPanel::Shared::pathList2hash($list2Convert); $self->hashTreeToYItemCollection($treeInfo); $treeWidget->addItems($treeInfo->{collection}); my $align = $factory->createRight($layout); my $hbox = $factory->createHBox($align); my $selectButton = $factory->createPushButton($hbox, $self->loc->N("Select")); my $cancelButton = $factory->createPushButton($hbox, $self->loc->N("Cancel")); if (exists $info->{default_button} ) { my $dflBtn = ($info->{default_button} == 1) ? $selectButton : $cancelButton; $dlg->setDefaultButton($selectButton); } while (1) { my $event = $dlg->waitForEvent(); my $eventType = $event->eventType(); #event type checking if ($eventType == $yui::YEvent::CancelEvent) { last; } elsif ($eventType == $yui::YEvent::WidgetEvent) { # widget selected my $widget = $event->widget(); if ($widget == $cancelButton) { last; } elsif ($widget == $selectButton) { my $item = $treeWidget->selectedItem(); my $getChoice = 1; if (!exists $info->{any_item_selection} || $info->{any_item_selection} != 0) { if ($item) { $getChoice = (!$item->hasChildren()); } } if ($info->{skip_path} && $info->{skip_path} != 0) { $choice = $item->label() if ($item && $getChoice); } else { if ($getChoice) { my $separator = exists $info->{item_separator} ? $info->{item_separator} : '/'; if ($item) { $choice = $item->label(); my $parent = $item; while($parent = $parent->parent()) { $choice = $parent->label() . $separator . $choice ; } } } } last; } } } destroy $dlg; #restore old application title yui::YUI::app()->setApplicationTitle($appTitle); return $choice; } no Moose; __PACKAGE__->meta->make_immutable; 1; href='#n566'>566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 
package install::pkgs;

use strict;
use feature 'state';

BEGIN {
    # needed before "use URPM"
    mkdir '/etc/rpm';
    symlink "/tmp/stage2/etc/rpm/$_", "/etc/rpm/$_" foreach 'macros.d';
}

use URPM;
use URPM::Resolve;
use URPM::Signature;
use urpm;
use urpm::args;
use urpm::main_loop;
use urpm::select;
use common;
use install::any;
use install::media qw(getFile_ getAndSaveFile_ packageMedium);
use run_program;
use detect_devices;
use log;
use fs;
use fs::any;
use fs::loopback;
use c;

#- lower bound on the left ( aka 90 means [90-100[ )
our %compssListDesc = (
   5 => N_("must have"),
   4 => N_("important"),
   3 => N_("very nice"),
   2 => N_("nice"),
   1 => N_("maybe"),
);

#- TODO BEFORE TODO
#- size and correction size functions for packages.
my $B = 120873;
my $C = 498663; #- does not take hdlist's into account as getAvailableSpace will do it.
my $D = 100000;
sub correctSize { ($B * $_[0] + $C) / $D }
sub invCorrectSize { ($_[0] * $D - $C) / $B }

sub selectedSize {
    my ($packages) = @_;
    my $size = 0;
    my %skip;
    #- take care of packages selected...
    foreach (@{$packages->{depslist}}) {
	if ($_->flag_selected) {
	    $size += $_->size;
	    #- if a package is obsoleted with the same name it should
	    #- have been selected, so a selected new package obsoletes
	    #- all the old package.
	    exists $skip{$_->name} and next; $skip{$_->name} = undef;
	    $size -= $packages->{sizes}{$_->name};
	}
    }
    #- but remove size of package being obsoleted or removed.
    foreach (keys %{$packages->{state}{rejected}}) {
	my ($name) = /(.*)-[^\-]*-[^\-]*$/ or next;
	exists $skip{$name} and next; $skip{$name} = undef;
	$size -= $packages->{sizes}{$name};
    }
    $size;
}

sub size2time {
    my ($x, $max) = @_;
    my $A = 7e9;
    my $limit = min($max * 3 / 4, 9e8);
    if ($x < $limit) {
	$A * $x;
    } else { 
	$x -= $limit;
	my $B = 6;
	my $C = 15e9;
	$B * $x ** 2 + $C * $x + $A * $limit;
    }
}

# Based on Rpmdrake::pkg::extract_header():
sub get_pkg_info {
    my ($p) = @_;

    my $urpm = $::o->{packages};
    my $name = $p->fullname;

    my $medium = URPM::pkg2media($urpm->{media}, $p);
    my ($local_source, %xml_info_pkgs, $description);
    my $dir = urpm::file_from_local_url($medium->{url});
    $local_source = "$dir/" . $p->filename if $dir;

    if (-s $local_source) {
	log::l("getting information from $dir...");
	$p->update_header($local_source) and $description = $p->description;
	log::l("Warning, could not extract header for $name from $medium!") if !$description;
    }
    if (!$description) {
	my $_w = $::o->wait_message(undef, N("Getting package information from XML meta-data..."));
	if (my $xml_info_file = eval { urpm::media::any_xml_info($urpm, $medium, 'info', undef, urpm::download::sync_logger) }) {
	    require urpm::xml_info;
	    require urpm::xml_info_pkg;
	    log::l("getting information from $xml_info_file");
	    my %nodes = eval { urpm::xml_info::get_nodes('info', $xml_info_file, [ $name ]) };
	    goto header_non_available if $@;
	    put_in_hash($xml_info_pkgs{$name} ||= {}, $nodes{$name});
	} else {
	    $urpm->{info}(N("No xml info for medium \"%s\", only partial result for package %s", $medium->{name}, $name));
	}
    }

    if (!$description && $xml_info_pkgs{$name}) {
	$description = $xml_info_pkgs{$name}{description};
    }
  header_non_available:
    $description || N("No description");
}

sub packagesProviding {
    my ($packages, $name) = @_;
    grep { $_->is_arch_compat } URPM::packages_providing($packages, $name);
}

#- search package with given name (and optional ISA) and compatible with current architecture.
#- take the best one found (most up-to-date).
# FIXME: reuse urpmi higher level code instead!
sub packageByName {
    my ($packages, $name) = @_;

    my $basename = $name =~ s/\(x86-..\)$//r;
    my @l = sort { $b->id <=> $a->id } grep { $_->name eq $basename } packagesProviding($packages, $name);

    my $best;
    foreach (@l) {
	if ($best && $best != $_) {
	    if ($best->fullname eq $_->fullname) {
		$best = $_ if $_->flag_installed;
	    } else {
	        $_->compare_pkg($best) > 0 and $best = $_;
            }
	} else {
	    $best = $_;
	}
    }
    $best or log::l("unknown package `$name'");
    $best;
}

sub _is_kernelServer_needed() {
    # forbid selecting kernel-server if not having PAE since PAE support is mandatory for kernel-server:
    return if !detect_devices::has_cpu_flag('pae');
    arch() =~ /i.86/ && detect_devices::isServer();
}

sub _bestKernel_extensions {
    my ($o_match_all_hardware) = @_;

    $::o->{kernel_extension} ? $::o->{kernel_extension} :
      _is_kernelServer_needed() ? '-server' :
      '-desktop';
}

sub bestKernelPackage {
    my ($packages, $o_match_all_hardware) = @_;

    my @preferred_exts = _bestKernel_extensions($o_match_all_hardware);
    my @kernels = grep { $_ } map { packageByName($packages, "kernel$_-latest") } @preferred_exts;

    if (!@kernels) {
        #- fallback on most generic kernel if the suitable one is not available
        my @fallback_exts = _bestKernel_extensions('force');
        @kernels = grep { $_ } map { packageByName($packages, "kernel$_-latest") } @fallback_exts;
    }

    log::l("bestKernelPackage (" . join(':', @preferred_exts) . "): " . join(' ', map { $_->name } @kernels) . (@kernels > 1 ? ' (choosing the first)' : ''));

    $kernels[0];
}

sub packagesToInstall {
    my ($packages) = @_;
    my @packages;
    foreach (@{$packages->{media}}) {
	!$_->{ignore} or next;
	log::l("examining packagesToInstall of medium $_->{name}");
	push @packages, grep { $_->flag_selected } install::media::packagesOfMedium($packages, $_);
    }
    log::l("found " . scalar(@packages) . " packages to install: " . formatList(5, map { scalar $_->fullname } @packages));

    @packages;
}

sub _packageRequest {
    my ($packages, $pkg) = @_;

    #- check if the same or better version is installed,
    #- do not select in such case.
    $pkg && ($pkg->flag_upgrade || !$pkg->flag_installed) or return;

    #- check for medium selection, if the medium has not been
    #- selected, the package cannot be selected.
    my $medium = packageMedium($packages, $pkg);
    $medium && !$medium->{ignore} or return;

    +{ $pkg->id => 1 };
}

sub packageCallbackChoices {
    my ($urpm, $_db, $_state, $choices, $virtual_pkg_name, $prefered) = @_;
  
    if ($prefered && @$prefered) {
	@$prefered;
    } elsif (my @l = _packageCallbackChoices_($urpm, $choices, $virtual_pkg_name)) {
	@l;
    } else {
	log::l("packageCallbackChoices: default choice ('" . $choices->[0]->name . "') from " . join(",", map { $_->name } @$choices) . " for $virtual_pkg_name");
	$choices->[0];
    }
}

sub _packageCallbackChoices_ {
    my ($urpm, $choices, $virtual_pkg_name) = @_;

    my ($prefer, $_other) = urpm::select::get_preferred($urpm, $choices, $::o->{preferred_packages});
    if (@$prefer) {
	@$prefer;
    } elsif ($virtual_pkg_name eq 'kernel') {
	my $re = join('|', map { "kernel\Q$_-2" } _bestKernel_extensions());
	my @l = grep { $_->name =~ $re } @$choices;
	log::l("packageCallbackChoices: kernel chosen ", join(",", map { $_->name } @l), " in ", join(",", map { $_->name } @$choices));
	@l;
    } elsif ($choices->[0]->name =~ /^kernel-(.*source-|.*-devel-)/) {
	my @l = grep {
	    if ($_->name =~ /^kernel-.*source-stripped-(.*)/) {
		my $version = quotemeta($1);
		find {
		    $_->name =~ /-$version$/ && ($_->flag_installed || $_->flag_selected);
		} $urpm->packages_providing('kernel');
	    } elsif ($_->name =~ /(kernel-.*)-devel-(.*)/) {
		my $kernel = "$1-$2";
		my $p = packageByName($urpm, $kernel);
		$p && ($p->flag_installed || $p->flag_selected);
	    } elsif ($_->name =~ /^kernel-.*source-/) {
		#- hopefully we don't have a media with kernel-source but not kernel-source-stripped nor kernel-.*-devel
		0;
	    } else {
		log::l("unknown kernel-source package " . $_->fullname);
		0;
	    }
	} @$choices;

	log::l("packageCallbackChoices: kernel source chosen ", join(",", map { $_->name } @l), " in ", join(",", map { $_->name } @$choices));

	@l;
    } else {
	();
    }
}

sub skip_packages {
    my ($packages, $skipped_packages) = @_;
    $packages->compute_flags($skipped_packages, skip => 1);
}

sub select_by_package_names {
    my ($packages, $names, $b_base) = @_;

    my @l;
    foreach (@$names) {
	my $p = packageByName($packages, $_) or next;
	push @l, selectPackage($packages, $p, $b_base);
    }
    @l;
}

sub select_by_package_names_or_die {
    my ($packages, $names, $b_base) = @_;

    foreach (@$names) {
	my $p = packageByName($packages, $_) or die "package $_ not found";
	!$p->flag_installed && !$p->flag_selected or next;
	my ($_pkgs, $error) = _selectPackage_with_error($packages, $p, $b_base);
	$error and die N("Some packages requested by %s cannot be installed:\n%s", $_, $error);
    }
}

my @recommended_package_ids;
sub _resolve_requested_and_check {
    my ($packages, $state, $requested) = @_;

    my @l = $packages->resolve_requested($packages->{rpmdb}, $state, $requested,
					 callback_choices => \&packageCallbackChoices, no_recommends => $::o->{no_recommends});

    #- keep track of recommended packages so that theys could be unselected if the "no recommends" option is choosen later:
    if (!is_empty_hash_ref($state->{selected})) {
        my @new_ids = map { $packages->{depslist}[$_]->id } grep { $state->{selected}{$_}{recommended} } keys %{$state->{selected}};
        @recommended_package_ids = uniq(@recommended_package_ids, @new_ids);
    }

    my $error;
    if (find { !exists $state->{selected}{$_} } keys %$requested) {
	my @rejected = urpm::select::unselected_packages($state);
	$error = urpm::select::translate_why_unselected($packages, $state, @rejected);
	log::l("ERROR: selection failed: $error");
    }

    \@l, $error;
}