package network::ethernet;

use strict;
use network::network;
use modules;
use modules::interactive;
use detect_devices;
use common;
use run_program;
use network::tools;
use vars qw(@ISA @EXPORT);
use MDK::Common::Globals "network", qw($in $prefix);

@ISA = qw(Exporter);
@EXPORT = qw(configureNetwork conf_network_card conf_network_card_backend go_ethernet);

sub configure_cable {
    my ($netcnx, $netc, $intf, $first_time) = @_;
    $::isInstall and $in->set_help('configureNetworkCable');
    $netcnx->{type} = 'cable';

    if ($::expert) {
	my @m = (
	       { description => "dhcp-client",
		 c => 1 },
	       { description => "dhcpcd",
		 c => 3 },
	       { description => "dhcpxd",
		 c => 4 },
	      );
	if (my $f = $in->ask_from_listf(N("Connect to the Internet"),
					N("Which dhcp client do you want to use?
Default is dhcp-client."),
					sub { $_[0]{description} },
					\@m)) {
	    $f->{c} == 3 and $netcnx->{dhcp_client} = "dhcpcd" and $in->do_pkgs->install(qw(dhcpcd));
	    $f->{c} == 4 and $netcnx->{dhcp_client} = "dhcpxd" and $in->do_pkgs->install(qw(dhcpxd));
	    $f->{c} == 1 and $netcnx->{dhcp_client} = "dhcp-client" and $in->do_pkgs->install(qw(dhcp-client));
	}
    } else {
	$in->do_pkgs->install(qw(dhcp-client));
    }
    go_ethernet($netc, $intf, 'dhcp', '', '', $first_time);
    write_cnx_script($netc, "cable",
qq(
/sbin/ifup $netc->{NET_DEVICE}
),
qq(
/sbin/ifdown $netc->{NET_DEVICE}
), $netcnx->{type});
    1;
}

sub configure_lan {
    my ($netcnx, $netc, $intf, $first_time) = @_;
    $::isInstall and $in->set_help('configureNetworkIP');
    configureNetwork($netc, $intf, $first_time) or return;
    configureNetwork2($in, $prefix, $netc, $intf);
    $netc->{NETWORKING} = "yes";
    if ($netc->{GATEWAY} || any { $_->{BOOTPROTO} =~ /dhcp/ } values %$intf) {
	$netcnx->{type} = 'lan';
	$netcnx->{NET_DEVICE} = $netc->{NET_DEVICE} = '';
	$netcnx->{NET_INTERFACE} = 'lan'; #$netc->{NET_INTERFACE};
        write_cnx_script($netc, "local network",
qq(
/etc/rc.d/init.d/network restart
),
qq(
/etc/rc.d/init.d/network stop
/sbin/ifup lo
), $netcnx->{type});
    }
    $::isStandalone and modules::write_conf($prefix);
    1;
}

sub conf_network_card {
    my ($netc, $intf, $type, $ipadr, $netadr) = @_;
    #-type =static or dhcp
    modules::interactive::load_category($in, 'network/main|usb', !$::expert, 1);
    my @all_cards = conf_network_card_backend($netc, $intf, $type, undef, $ipadr, $netadr);
    my $interface;
    @all_cards == () and $in->ask_warn('', N("No ethernet network adapter has been detected on your system.
I cannot set up this connection type.")) and return;
    @all_cards == 1 and $interface = $all_cards[0][0];
    while (!$interface) {
	$interface = $in->ask_from_list(N("Choose the network interface"),
					N("Please choose which network adapter you want to use to connect to Internet."),
					[ map { $_->[0] . ($_->[1] ? " (using module $_->[1])" : "") } @all_cards ]
				       ) or return;
    }
    $::isStandalone and modules::write_conf($prefix);

    my $_device = conf_network_card_backend($netc, $intf, $type, $interface, $ipadr, $netadr, $interface);
#      if ( $::isStandalone and !($type eq "dhcp")) {
#  	$in->ask_yesorno(N("Network interface"),
#  			  N("I'm about to restart the network device:\n") . $device . N("\nDo you agree?"), 1) and configureNetwork2($in, $prefix, $netc, $intf) and system("$prefix/sbin/ifdown $device;$prefix/sbin/ifup $device");
#      }
    1;
}

#- conf_network_card_backend : configure the network cards and return the list of them, or configure one specified interface : WARNING, you have to setup the ethernet cards, by calling load_category($in, 'network/main|usb', !$::expert, 1) or load_category_backend before calling this function. Basically, you call this function in 2 times.
#- input
#-  $prefix
#-  $netc
#-  $intf
#-  $type : type of interface, must be given if $interface is : string : "static" or "dhcp"
#-  $interface : facultative, if given, set this interface and return it in a proper form. If not, return @all_cards
#-  $ipadr : facultative, ip address of the interface : string
#-  $netadr : facultative, netaddress of the interface : string
#- when $interface is given, informations are written in $intf and $netc. If not, @all_cards is returned.
#- $intf output: $device is the result of
#-  $intf->{$device}->{DEVICE} : which device is concerned : $device is the result of $interface =~ /(eth[0-9]+)/; my $device = $1;;
#-  $intf->{$device}->{BOOTPROTO} : $type
#-  $intf->{$device}->{NETMASK} : '255.255.255.0'
#-  $intf->{$device}->{NETWORK} : $netadr
#-  $intf->{$device}->{ONBOOT} : "yes"
#- $netc output:
#-  $netc->{NET_DEVICE} : this is used to indicate that this eth card is used to connect to internet : $device
#- output:
#-  $all_cards : a list of a list ( [eth1, module1], ... , [ethn, modulen]). Pass the ethx as $interface in further call.
#-  $device : only returned in case $interface was given it's $interface, but filtered by /eth[0-9+]/ : string : /eth[0-9+]/
sub conf_network_card_backend {
    my ($netc, $intf, $type, $interface, $ipadr, $netadr) = @_;
    #-type =static or dhcp
    if (!$interface) {
	my @all_cards = detect_devices::getNet();
	my @unconfigured_interfaces = qw(ADIModem);

	my @devs = detect_devices::pcmcia_probe();
	modules::mergein_conf("$prefix/etc/modules.conf");
	my $saved_driver;
	return map {
	    my $interface = $_;
	    my $a = modules::get_alias($interface);
	    my $b;
	    foreach (@devs) {
		$_->{device} eq $interface and $b = $_->{driver};
	    }
	    $a ||= $b;
	    $a and $saved_driver = $a;
	    if_(!member($interface, @unconfigured_interfaces) || $a, [$interface, $saved_driver]);
	} @all_cards, @unconfigured_interfaces;
    }
    my ($device) = $interface =~ /(ADIModem|eth[0-9]+)/ or die("the interface is not an ethx or other (like ADIModem)");
    $netc->{NET_DEVICE} = $device; #- one consider that there is only ONE Internet connection device..

    @{$intf->{$device}}{qw(DEVICE BOOTPROTO   NETMASK     NETWORK ONBOOT)} = ($device, $type, '255.255.255.0', $netadr, 'yes');

    $intf->{$device}{IPADDR} = $ipadr if $ipadr;
    $device;
}

sub go_ethernet {
    my ($netc, $intf, $type, $ipadr, $netadr, $first_time) = @_;
    conf_network_card($netc, $intf, $type, $ipadr, $netadr) or return;
    $netc->{NET_INTERFACE} = $netc->{NET_DEVICE};
    configureNetwork($netc, $intf, $first_time) or return;
#      if ( $::isStandalone and $netc->{NET_DEVICE}) {
#  	$in->ask_yesorno(N("Network interface"),
#  			 N("I'm about to restart the network device %s. Do you agree?", $netc->{NET_DEVICE}), 1) and system("$prefix/sbin/ifdown $netc->{NET_DEVICE}; $prefix/sbin/ifup $netc->{NET_DEVICE}");
#      }
    1;
}

sub configureNetwork {
    my ($netc, $intf, $_first_time) = @_;
    local $_;
    modules::interactive::load_category($in, 'network/main|usb|pcmcia', !$::expert, 1) or return;
    my @l = detect_devices::getNet() or die N("no network card found");
    my @all_cards = conf_network_card_backend($netc, $intf, undef, undef, undef, undef);

  configureNetwork_step_1:
    my $n_card = 0;
    $netc ||= {};
    my $last; foreach (@l) {
	my $intf2 = findIntf($intf ||= {}, $_);
	add2hash($intf2, $last);
	add2hash($intf2, { NETMASK => '255.255.255.0' });
	configureNetworkIntf($netc, $in, $intf2, $netc->{NET_DEVICE}, 0, $all_cards[$n_card][1]) or return;

	$last = $intf2;
	$n_card++;
    }
    $last or return;
    
    if ($last->{BOOTPROTO} =~ /dhcp|bootp|zeroconf/) {
	$netc->{minus_one} = 1;
	$netc->{DHCP} = 1;
	$::isInstall and $in->set_help('configureNetworkHostDHCP');
	$in->ask_from(N("Configuring network"),
N("Please enter your host name if you know it.
Some DHCP servers require the hostname to work.
Your host name should be a fully-qualified host name,
such as ``mybox.mylab.myco.com''."),
		      [ { label => N("Host name"), val => \$netc->{HOSTNAME} } ]) or goto configureNetwork_step_1;
	#$netc->{HOSTNAME} ne $dhcp_hostname and $netc->{DHCP_HOSTNAME} = $netc->{HOSTNAME};
	$intf->{DHCP_HOSTNAME} = $netc->{HOSTNAME};
    } else {
	configureNetworkNet($in, $netc, $last ||= {}, @l) or goto configureNetwork_step_1;
    }
    network::network::miscellaneous_choose($in, $::o->{miscellaneous} ||= {}) or goto configureNetwork_step_1;
    1;
}

1;