#!/usr/bin/perl
# DrakxTV
# $Id$

# Copyright (C) 2002-2005 Mandriva (tvignaud@mandriva.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 strict;
use lib qw(/usr/lib/libDrakX);

use common;
use standalone; #- warning, standalone must be loaded very first, for 'explanations'

use interactive;
use detect_devices;
use lang;
use log;

$ugtk2::wm_icon = "/usr/share/mcc/themes/default/tv-mdk.png";

my $in = 'interactive'->vnew;

sub scan4channels() {
    # xawtv has been installed by DrakX when/if it's detected a tv
    # card.

    $in->do_pkgs->ensure_binary_is_installed('xawtv', 'scantv');

	   my ($ftable_id, $norm);
        #   this table must be checked on each xawtv release:
	   my %freqtables = 
          ("us-bcast" => N("USA (broadcast)"), "us-cable" => N("USA (cable)"), "us-cable-hrc" => N("USA (cable-hrc)"), "canada-cable" => N("Canada (cable)"),
           "japan-bcast" => N("Japan (broadcast)"), "japan-cable" => N("Japan (cable)"), "china-bcast" => N("China (broadcast)"),
           "europe-west" => N("West Europe"), "europe-east" => N("East Europe"), "italy" => N("Italy"), "ireland" => N("Ireland"), "france" => N("France [SECAM]"),
           "newzealand" => N("Newzealand"), "australia" => N("Australia"),
           "southafrica" => N("South Africa"),
           "argentina" => N("Argentina"),
           "australia-optus" => N("Australian Optus cable TV"),
           -1 => N("All")
          );
        #   Info: HRC means "Harmonically Related Carrier"

        my %countries =
          (
           "AR" => [ "argentina" ],
           "AU" => [ "australia" ],
           "FR" => [ "france", "SECAM" ],
           "CA" => [ "canada-cable", "NTSC" ],
           "IE" => [ "ireland" ],
           "IT" => [ "italy" ],
           "JP" => [ "japan-bcast", "NTSC-JP" ],
           "NZ" => [ "newzealand" ],
           "AT|BE|CH|DE|ES|GB|SE" => [ "europe-west" ],
           "US" => [ "us-bcast", "NTSC" ],
           "ZA" => [ "southafrica" ],
           "CN|TW" => [ "china-bcast" ]
          );

        my $tbl;
        my $locale = lang::read($>);
        $locale->{country} =~ /$_/ and $tbl = $countries{$_} foreach keys %countries;
        if ($tbl) {
            $ftable_id = $tbl->[0];
            $norm = $tbl->[1] if $tbl->[1];
        }
        # default to pal since most people use that
        $norm ||= "PAL";
        log::l("[drakxtv] guess country=>$locale->{country}, norm=>$norm, area=>$ftable_id");
        my %users = map { $_->[6] || $_->[0] => $_->[7] } grep { $_->[2] == 0 || 500 <= $_->[2] } list_passwd();
        my $user;

	   if ($in->ask_from("TVdrake", N("Please,\ntype in your tv norm and country"),
                          [
                           { label => N("TV norm:"), val => \$norm, list => [ "NTSC", "NTSC-JP", "PAL", "PAL-M", "PAL-N", "PAL-NC", "SECAM" ], type => 'combo' },
					  { label => N("Area:"), val => \$ftable_id, list => [keys %freqtables], format => sub { $freqtables{$_[0]} }, sort => 1 },
					  { label => N("User:"), val => \$user, list => [ keys %users ], sort => 1 },
					  ]
					 )) {
            my $_wait = $in->wait_message(N("Please wait"),
								 N("Scanning for TV channels in progress..."));
            # we provide scantv a bogus table (france) which will
            # will be ignored since "All" is selected (because of -a)
		  $ftable_id = "france -a " if $ftable_id eq -1;
		  # Note that this'll be broken if/when we implement interactive::qt
		  my $use_X = $in->isa('interactive::gtk') && -x "/usr/X11R6/bin/xvt";
		  my $home = $users{$user}; #ENV{HOME};
		  my $is_bttv_loaded = cat_("/proc/modules");
            # workaround non loaded bttv
		  run_program::run('/sbin/modprobe', 'bttv') if $< == 0 && $is_bttv_loaded !~ /bttv/;
		  my $i = system(($use_X ? "xvt -T '" . N("Scanning for TV channels") . " ...' -e " : "") . 
                           "scantv -n $norm -C /dev/v4l/vbi$::i -c /dev/v4l/video$::i -f $ftable_id -o $home/.xawtv" .
                           ($use_X ? "" : " &>$home/tmp/scantv.log;"));
		  if ($i) {
			 $in->ask_warn(N("Error"), N("There was an error while scanning for TV channels"));
            } else {
			 log::explanations("created file $home/.xawtv");
                $in->ask_warn(N("Have a nice day!"),
                              N("Now, you can run xawtv (under X Window!) !\n")) unless $use_X;
            }
	   }
}

my @devices = detect_devices::getTVcards();
push @devices, { driver => 'bttv', description => 'dummy' } if $::testing && !@devices;
my ($devices, $devices_ok) = partition { detect_devices::isTVcard($_) } @devices;

my $modules_conf;

# handle TV cards which driver needs to be configured b/c it cannot autodetect the card & tuner types:
if (@devices = @$devices) {
    my $not_canceled = 1;
    # TODO: That need some work for multiples TV cards
    each_index {
	   if (($< == 0 || $::testing) && (grep { detect_devices::isTVcard($_) } @devices)) {
		  require harddrake::v4l;
		  require modules;

		  $modules_conf ||= modules::any_conf->read;
		  $not_canceled &&= harddrake::v4l::config($in, $modules_conf, $_->{driver});
		  $modules_conf->write;
	   }
	   scan4channels() if $not_canceled;
    } @devices;
}

# handle TV cards that do not require any driver configuration:
if (@devices = @$devices_ok) {
    require modules;
    $modules_conf ||= modules::any_conf->read;
    $modules_conf->write;
    scan4channels();
}

# we failed to detect any TV card:
if (!$devices && !$devices_ok) {
    $in->ask_warn(N("No TV Card detected!"), formatAlaTeX(
                                                          #-PO: keep the double empty lines between sections, this is formatted a la LaTeX
                                                          N("No TV Card has been detected on your machine. Please verify that a Linux-supported Video/TV Card is correctly plugged in.


You can visit our hardware database at:


http://www.mandrivalinux.com/en/hardware.php3")));
}
$in->exit(0) if defined $in;


# TODO:
# - offer to sort channels after
# - use Video-Capture-V4l-0.221 ?
# - configure kwintv and zapping ? => they've already wizards :-(
# - install xawtv if needed through consolhelper