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#!/usr/bin/perl -w
#
#
#  rhimport
#
#  Copyright (C) 2009 Christian Pointner <equinox@helsinki.at>
#
#  This file is part of rhimport.
#
#  rhimport 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 3 of the License, or
#  any later version.
#
#  rhimport 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 rhimport. If not, see <http://www.gnu.org/licenses/>.
#

use strict;
use DBI;
use Date::Calc;
use XML::Feed;
use XML::Feed::Entry;
use XML::Feed::Content;
use XML::Feed::Enclosure;
use File::Fetch;
use IO::Handle;
use IPC::Open3;

use lib '/usr/local/share/rhimport/';
use rhimport;

my $DBHOST = "airplay";
my $DBUSER = "rivendell";
my $DBPW = "lldriven";
my $DB = "rivendell";

my $STAT_FILE = $ENV{'HOME'} . "/rhimport-rs.stat";
my $RSS_URL = "http://cba.fro.at/seriesrss/197";
my $PV_ID = '75';

binmode(STDIN, ":utf8");
binmode(STDOUT, ":utf8");
binmode(STDERR, ":utf8");

my $user = `/usr/bin/id -un`;
$user =~ s/\n//;
my $group = "radioStimm";

my $dbh = DBI->connect("DBI:mysql:$DB:$DBHOST","$DBUSER","$DBPW") or die "Database Error: $DBI::errstr";
my @allowed_dbs = rhimport::get_dropboxes($dbh, $user, $group);

if(scalar(@allowed_dbs) != 2) {
  print "found more or less than 2 Dropboxes for this group?!\n";
  $dbh->disconnect();
  exit 1;
}

my $idx = 0;
my $idx_reb = 1;
if(($allowed_dbs[1]->{'TO_CART'} % 100) == 0) {
  $idx = 1;
  $idx_reb = 0;
}
my $dropbox = $allowed_dbs[$idx]->{'PATH'};
my $to_cart = $allowed_dbs[$idx]->{'TO_CART'};
my $dropbox_reb = $allowed_dbs[$idx_reb]->{'PATH'};
my $to_cart_reb = $allowed_dbs[$idx_reb]->{'TO_CART'};

my @today = Date::Calc::Standard_to_Business(Date::Calc::Today());
$today[2] = 2;
my @broadcast_day = Date::Calc::Business_to_Standard(@today);
$today[2] = 6;
my @import_date = Date::Calc::Business_to_Standard(@today);
my @import_date_reb = Date::Calc::Add_Delta_Days($import_date[0], $import_date[1], $import_date[2], 10);
print "day of original broadcast: " . Date::Calc::Date_to_Text(@broadcast_day) . "\n";
my @broadcast_day_last_week = Date::Calc::Add_Delta_Days($broadcast_day[0], $broadcast_day[1], $broadcast_day[2], -7);
print "                       or: " . Date::Calc::Date_to_Text(@broadcast_day_last_week) . "\n";
print "day of Radio Helsinki broadcast: " . Date::Calc::Date_to_Text(@import_date) . "\n";
print "day of Radio Helsinki rebroadcast: " . Date::Calc::Date_to_Text(@import_date_reb) . "\n";

my $bdtw = sprintf("%04d-%02d-%02d", $broadcast_day[0], $broadcast_day[1], $broadcast_day[2]);
my $bdtwfile = sprintf("RAST%04d%02d%02dCBA(.*).MP3", $broadcast_day[0], $broadcast_day[1], $broadcast_day[2]);
my $bdlw = sprintf("%04d-%02d-%02d", $broadcast_day_last_week[0], $broadcast_day_last_week[1], $broadcast_day_last_week[2]);
my $bdlwfile = sprintf("RAST%04d%02d%02dCBA(.*).MP3", $broadcast_day_last_week[0], $broadcast_day_last_week[1], $broadcast_day_last_week[2]);
print "looking for files from $bdtw or $bdlw in RSS Feed\n";

my $feed = XML::Feed->parse(URI->new($RSS_URL))
  or die "Error fetching feed: " . XML::Feed->errstr;

my $file = "";
my $out_file = "";

my $bd = $bdtw;
my $bdfile = $bdtwfile;

while(1) {
  for my $entry ($feed->entries) {
    if($entry->enclosure && $entry->enclosure->type eq "audio/mpeg") {
      my $ff = File::Fetch->new(uri => $entry->enclosure->url);
      next if(uc($ff->output_file) ne $bdfile); # file not from correct day
 
      my $sum_title = $entry->title;
      my $sum_text = $entry->content->body;

      my $current_file = `cat $STAT_FILE`;
      if($current_file eq $ff->output_file) {
        print "Already downloaded file of today\n";
        $dbh->disconnect();
        exit 0;
      }
      $out_file = $ff->output_file;
  
      print $bdfile . ": downloading " . $entry->enclosure->url . " (" . $entry->enclosure->length . " Bytes) .. ";
      $file = $ff->fetch( to => '/tmp' ) or die $ff->error;
      print "ok\n";
  
      print "summary:\n" . $sum_title . "\n\n" . $sum_text . "\n";

      rhimport::pv_add_note($sum_title, $sum_text, $PV_ID, sprintf("%04d-%02d-%02d", $import_date[0], $import_date[1], $import_date[2]), "1");
      print "\n";
      rhimport::pv_add_note($sum_title, $sum_text, $PV_ID, sprintf("%04d-%02d-%02d", $import_date_reb[0], $import_date_reb[1], $import_date_reb[2]), "2");
      print "\n";

      last;
    }
  }
  last if($file ne "");
  if($bd eq $bdtw) {
    print "No Entry found from $bdtw - trying $bdlw\n";
    $bd = $bdlw;
    $bdfile = $bdlwfile;
  }
  else { last; };
}

if($file eq "" || !(-e "$file")) {
  print "No Entry found from $bdtw or $bdlw or download error - will retry later\n";
  exit 1;
}

print "will import $file to dropbox $dropbox (cart=$to_cart)\n";
print "will import $file to rebroadcast dropbox $dropbox_reb (cart=$to_cart_reb)\n\n";

my $error_cb = sub {
  my ($text) = @_;

  print "\n$text";
  return 0;
};

rhimport::check_key_file() or die "Import Key not found, use rhimport-create-id to create one\n";

my $ret;
my $log = rhimport::clear_carts($dbh, $group, $to_cart);
my $import_log;
($ret, $import_log) = rhimport::import_single($file, $dropbox, $user, 0, $error_cb);
$log .= $import_log;
$import_log = rhimport::clear_carts($dbh, $group, $to_cart_reb);
$log .= $import_log;
($ret, $import_log) = rhimport::import_single($file, $dropbox_reb, $user, 0, $error_cb);
$log .= $import_log;

$dbh->disconnect();

unlink $file;

if(!$ret) {
  print "\nImport Error:\n";
  print $log;
  exit 1;
}

unlink($STAT_FILE);
open(my $fhs, '>', $STAT_FILE);
print $fhs $out_file;
close($fhs);

exit 0;