fhem-mirror/FHEM/95_holiday.pm
rudolfkoenig 561cff81de Adding Id: to the modules
git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@1098 2b470e98-0d58-463d-a4d8-8e2adae1ed80
2011-11-12 07:51:08 +00:00

243 lines
6.8 KiB
Perl
Executable File

#######################################################################
# $Id$
package main;
use strict;
use warnings;
use POSIX;
sub holiday_refresh($$);
#####################################
sub
holiday_Initialize($)
{
my ($hash) = @_;
$hash->{DefFn} = "holiday_Define";
$hash->{GetFn} = "holiday_Get";
$hash->{UndefFn} = "holiday_Undef";
}
#####################################
sub
holiday_Define($$)
{
my ($hash, $def) = @_;
return holiday_refresh($hash->{NAME}, undef) if($init_done);
InternalTimer(gettimeofday()+1, "holiday_refresh", $hash->{NAME}, 0);
return undef;
}
sub
holiday_Undef($$)
{
my ($hash, $name) = @_;
RemoveInternalTimer($name);
return undef;
}
sub
holiday_refresh($$)
{
my ($name, $fordate) = (@_);
my $hash = $defs{$name};
my $internal;
return if(!$hash); # Just deleted
my $nt = gettimeofday();
my @lt = localtime($nt);
my @fd;
if(!$fordate) {
$internal = 1;
$fordate = sprintf("%02d-%02d", $lt[4]+1, $lt[3]);
@fd = @lt;
} else {
my ($m,$d) = split("-", $fordate);
@fd = localtime(mktime(1,1,1,$d,$m-1,$lt[5],0,0,-1));
}
my $fname = $attr{global}{modpath} . "/FHEM/" . $hash->{NAME} . ".holiday";
return "Can't open $fname: $!" if(!open(FH, $fname));
my $found = "none";
while(my $l = <FH>) {
next if($l =~ m/^\s*#/);
next if($l =~ m/^\s*$/);
chomp($l);
if($l =~ m/^1/) { # Exact date: 1 MM-DD Holiday
my @args = split(" +", $l, 3);
if($args[1] eq $fordate) {
$found = $args[2];
last;
}
} elsif($l =~ m/^2/) { # Easter date: 2 +1 Ostermontag
###mh new code for easter sunday calc w.o. requirement for
# DateTime::Event::Easter
# replace $a1 with $1 !!!
# split line from file into args '2 <offset from E-sunday> <tagname>'
my @a = split(" ", $l, 3);
# get month & day for E-sunday
my ($Om,$Od) = western_easter(($lt[5]+1900));
my $timex = mktime(0,0,12,$Od,$Om-1, $lt[5],0,0,-1); # gen timevalue
$timex = $timex + $a[1]*86400; # add offset days
my ($msecond, $mminute, $mhour,
$mday, $mmonth, $myear, $mrest) = localtime($timex);
$myear = $myear+1900;
$mmonth = $mmonth+1;
#Log 4, "$name: Ostern ".($lt[5]+1900)." ist am " .sprintf("%02d-%02d",
# $Od, $Om) ." Target day: $mday-$mmonth-$myear";
next if($mday != $fd[3] || $mmonth != $fd[4]+1);
$found = $a[2];
Log 4, "$name: Match day: $a[2]\n";
last;
} elsif($l =~ m/^3/) { # Relative date: 3 -1 Mon 03 Holiday
my @a = split(" +", $l, 5);
my %wd = ("Sun"=>0, "Mon"=>1, "Tue"=>2, "Wed"=>3,
"Thu"=>4, "Fri"=>5, "Sat"=>6);
my @md = (31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
$md[1]=29 if(schaltjahr($fd[5]+1900) && $fd[4] == 1);
my $wd = $wd{$a[2]};
if(!defined($wd)) {
Log 1, "Wrong timespec: $l";
next;
}
next if($wd != $fd[6]); # Weekday
next if($a[3] != ($fd[4]+1)); # Month
if($a[1] > 0) { # N'th day from the start
my $d = $fd[3] - ($a[1]-1)*7;
next if($d < 1 || $d > 7);
} elsif($a[1] < 0) { # N'th day from the end
my $d = $fd[3] - ($a[1]+1)*7;
my $md = $md[$fd[4]];
next if($d > $md || $d < $md-6);
}
$found = $a[4];
last;
} elsif($l =~ m/^4/) { # Interval: 4 MM-DD MM-DD Holiday
my @args = split(" +", $l, 4);
if($args[1] le $fordate && $args[2] ge $fordate) {
$found = $args[3];
last;
}
} elsif($l =~ m/^5/) { # nth weekday since MM-DD / before MM-DD
my @a = split(" +", $l, 6);
# arguments: 5 <distance> <weekday> <day> <month> <name>
my %wd = ("Sun"=>0, "Mon"=>1, "Tue"=>2, "Wed"=>3,
"Thu"=>4, "Fri"=>5, "Sat"=>6);
my $wd = $wd{$a[2]};
if(!defined($wd)) {
Log 1, "Wrong weekday spec: $l";
next;
}
next if $wd != $fd[6]; # check wether weekday matches today
my $yday=$fd[7];
# create time object of target date - mktime counts months and their
# days from 0 instead of 1, so subtract 1 from each
my $tgt=mktime(0,0,1,$a[3]-1,$a[4]-1,$fd[5],0,0,-1);
my $tgtmin=$tgt;
my $tgtmax=$tgt;
my $weeksecs=7*24*60*60; # 7 days, 24 hours, 60 minutes, 60seconds each
my $cd=mktime(0,0,1,$fd[3],$fd[4],$fd[5],0,0,-1);
if ( $a[1] =~ /^-([0-9])*$/ ) {
$tgtmin -= $1*$weeksecs; # Minimum: target date minus $1 weeks
$tgtmax = $tgtmin+$weeksecs; # Maximum: one week after minimum
# needs to be lower than max and greater than or equal to min
if ( ($cd ge $tgtmin) && ( $cd lt $tgtmax) ) {
$found=$a[5];
last;
}
} elsif ( $a[1] =~ /^\+?([0-9])*$/ ) {
$tgtmin += ($1-1)*$weeksecs; # Minimum: target date plus $1-1 weeks
$tgtmax = $tgtmin+$weeksecs; # Maximum: one week after minimum
# needs to be lower than or equal to max and greater min
if ( ($cd gt $tgtmin) && ( $cd le $tgtmax) ) {
$found=$a[5];
last;
}
} else {
Log 1, "Wrong distance spec: $l";
next;
}
}
}
close(FH);
RemoveInternalTimer($name);
$nt -= ($lt[2]*3600+$lt[1]*60+$lt[0]); # Midnight
$nt += 86400 + 2; # Tomorrow
$hash->{TRIGGERTIME} = $nt;
InternalTimer($nt, "holiday_refresh", $name, 0);
if($internal) {
$hash->{STATE} = $found;
return undef;
} else {
return $found;
}
}
sub
holiday_Get($@)
{
my ($hash, @a) = @_;
return "argument is missing" if(int(@a) != 2);
return "wrong argument: need MM-DD" if($a[1] !~ m/^[01]\d-[0-3]\d$/);
return holiday_refresh($hash->{NAME}, $a[1]);
}
sub
schaltjahr($)
{
my($jahr) = @_;
return 0 if $jahr % 4; # 2009
return 1 unless $jahr % 400; # 2000
return 0 unless $jahr % 100; # 2100
return 1; # 2012
}
### mh sub western_easter copied from cpan Date::Time::Easter
### mh changes marked with # mh
### mh
### mh calling parameter is 4 digit year
### mh
sub
western_easter($)
{
my $year = shift;
my $golden_number = $year % 19;
#quasicentury is so named because its a century, only its
# the number of full centuries rather than the current century
my $quasicentury = int($year / 100);
my $epact = ($quasicentury - int($quasicentury/4) -
int(($quasicentury * 8 + 13)/25) + ($golden_number*19) + 15) % 30;
my $interval = $epact - int($epact/28)*
(1 - int(29/($epact+1)) * int((21 - $golden_number)/11) );
my $weekday = ($year + int($year/4) + $interval +
2 - $quasicentury + int($quasicentury/4)) % 7;
my $offset = $interval - $weekday;
my $month = 3 + int(($offset+40)/44);
my $day = $offset + 28 - 31* int($month/4);
return $month, $day;
}
1;