use v5.10.1;
+use Mojolicious::Lite;
use Serial;
use Mojo::IOLoop;
use Mojo::IOLoop::Stream;
-use Mojo::JSON qw(decode_json encode_json);
+use Mojo::Transaction::WebSocket;
+#use Mojo::JSON qw(decode_json encode_json);
+use JSON;
use Debug;
use SMGLog;
+use Math::Round qw(nearest);
+
+use constant pi => 3.14159265358979;
my $devname = "/dev/davis";
+my $datafn = ".loop_data";
+my $dataf;
+
+my $poll_interval = 2.5;
my $rain_mult = 0.2; # 0.1 or 0.2 mm or 0.01 inches
my $tid;
my $rid;
-my $count;
+our $did;
+my $nlcount;
my $state = "ready";
my $buf;
my $dbg;
-my $last_reading;
+my $ser; # the serial port Mojo::IOLoop::Stream
+
+our $json = JSON->new->canonical(1);
+
+our $ld = {};
+
+our $loop_count; # how many LOOPs we have done, used as start indicator
our @crc_table = (
0x0, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
$bar_trend{20} = "Rising Slowly";
$bar_trend{60} = "Rising Rapidly";
-#$SIG{TERM} = $SIG{INT} = sub {Mojo::IOLoop->stop if Mojo::IOLoop->is_running && !$DB::VERSION};
+our $ending = 0;
+
+$SIG{TERM} = $SIG{INT} = sub {++$ending; Mojo::IOLoop->stop;};
+$SIG{HUP} = 'IGNORE';
+
+
+get '/' => 'index';
+
+# WebSocket weather service
+websocket '/index' => sub {
+ my $c = shift;
+
+ # Opened
+ $c->app->log->debug('WebSocket opened.');
+ dbg 'WebSocket opened' if isdbg 'chan';
+
+ # Increase inactivity timeout for connection a bit
+ $c->inactivity_timeout(300);
+
+ # Incoming message
+ $c->on(
+ message => sub {
+ my ($c, $msg) = @_;
+ dbg "websocket: $msg" if isdbg 'chan';
+ },
+ json => sub {
+ my ($c, $msg) = @_;
+ dbg "websocket: $msg" if isdbg 'chan';
+ }
+ );
+
+ # Closed
+ $c->on(finish => sub {
+ my ($c, $code, $reason) = @_;
+ $c->app->log->debug("WebSocket closed with status $code.");
+ dbg 'WebSocket closed with status $code' if isdbg 'chan';
+ });
+
+ $c->render;
+
+};
dbginit();
if (@ARGV) {
}
dbgadd('chan');
+dbg '***';
+dbg "*** starting $0";
+dbg '***';
-my $dlog = SMGLog->new("day");
-$dlog->mode('a');
-
-my $s = do_open($devname);
-start_loop();
+our $dlog = SMGLog->new("day");
+dbg "before next tick";
+Mojo::IOLoop->next_tick(sub { loop() });
+dbg "before app start";
+app->start;
+dbg "after app start";
-Mojo::IOLoop->recurring(0.1 => sub { $dlog->flushall });
+write_ld();
+close $dataf if $dataf;
-Mojo::IOLoop->start unless Mojo::IOLoop->is_running;
+dbg '***';
+dbg "*** ending $0";
+dbg '***';
exit 0;
+##################################################################################
+
+sub loop
+{
+
+ open $dataf, "+>>", $datafn or die "cannot open $datafn $!";
+ $dataf->autoflush(1);
+
+ read_ld();
+
+ dbg "last_min: " . scalar gmtime($ld->{last_min});
+ dbg "last_hour: " . scalar gmtime($ld->{last_hour});
+
+ $did = Mojo::IOLoop->recurring(1 => sub {$dlog->flushall});
+
+ do_reopen($devname);
+}
+
+
+
sub on_read
{
- my ($str, $d) = @_;
+ my ($ser, $d) = @_;
$buf .= $d;
$d =~ s/([\%\x00-\x1f\x7f-\xff])/sprintf("%%%02X", ord($1))/eg;
- dbg "read added '$d' buf lth=" . length $buf if isdbg('raw');
+ dbg "read added '$d' buf lth=" . length $buf if isdbg 'raw';
if ($state eq 'waitnl' && $buf =~ /[\cJ\cM]+/) {
- Mojo::IOLoop->remove($tid);
+ dbg "Got \\n" if isdbg 'state';
+ Mojo::IOLoop->remove($tid) if $tid;
+ undef $tid;
undef $buf;
- $s->write("LPS 1 1\n");
+ $nlcount = 0;
+ $ser->write("LPS 1 1\n");
chgstate("waitloop");
} elsif ($state eq "waitloop") {
if ($buf =~ /\x06/) {
+ dbg "Got ACK 0x06" if isdbg 'state';
chgstate('waitlooprec');
undef $buf;
}
} elsif ($state eq 'waitlooprec') {
if (length $buf >= 99) {
- dbg "got loop record\n" if isdbg('chan');
-
+ dbg "got loop record" if isdbg 'chan';
chgstate('');
process($buf);
undef $buf;
sub start_loop
{
- dbg "writing \\n" if isdbg('chan');
-
- $s->write("\n");
- $tid = Mojo::IOLoop->recurring(0.6 => sub {dbg "writing \\n" if isdbg('chan'); $s->write("\n")});
-
+ $nlcount = 1;
+ dbg "start_loop writing $nlcount \\n" if isdbg 'state';
+ $ser->write("\n");
+ Mojo::IOLoop->remove($tid) if $tid;
+ undef $tid;
+ $tid = Mojo::IOLoop->recurring(0.6 => sub {
+ if (++$nlcount > 10) {
+ dbg "\\n count > 10, closing connection" if isdbg 'chan';
+ do_reopen($devname);
+ return;
+ }
+ dbg "writing $nlcount \\n" if isdbg 'state';
+ $ser->write("\n");
+ });
chgstate("waitnl");
}
sub chgstate
{
- dbg "state '$state' -> '$_[0]'" if isdbg('chan');
-
+ dbg "state '$state' -> '$_[0]'" if isdbg 'state';
$state = $_[0];
}
+sub do_reopen
+{
+ my $name = shift;
+ dbg "do reopen on '$name' ending $ending";
+ unless ($ending) {
+ $ser = do_open($name);
+ start_loop();
+ chgstate('');
+ $nlcount = 0;
+ Mojo::IOLoop->start unless Mojo::IOLoop->is_running;
+ }
+}
+
sub do_open
{
my $name = shift;
+
+ $ser->close if $ser;
+ undef $ser;
+
my $ob = Serial->new($name, 19200) || die "$name $!\n";
- dbg "streaming $name fileno(", fileno($ob), ")" if isdbg('chan');
+ dbg "streaming $name fileno(" . fileno($ob) . ")" if isdbg 'chan';
- my $str = Mojo::IOLoop::Stream->new($ob);
- $str->on(error=>sub {dbg "serial $_[1]"; undef $s; Mojo::IOLoop->reset;});
-
- $str->on(close=>sub {dbg "serial closing"; undef $s; Mojo::IOLoop->reset;});
- $str->on(timeout=>sub {dbg "serial timeout";});
- $str->on(read=>sub {on_read(@_)});
- $str->start;
-
- $rid = Mojo::IOLoop->recurring(2.5 => sub {
- start_loop() if !$state || $state eq "waitnl";
+ my $ser = Mojo::IOLoop::Stream->new($ob);
+ $ser->on(error=>sub {dbg "serial $_[1]"; do_reopen($name) unless $ending});
+ $ser->on(close=>sub {dbg "serial closing"; do_reopen($name) unless $ending});
+ $ser->on(timeout=>sub {dbg "serial timeout";});
+ $ser->on(read=>sub {on_read(@_)});
+ $ser->start;
+
+ Mojo::IOLoop->remove($tid) if $tid;
+ undef $tid;
+ Mojo::IOLoop->remove($rid) if $rid;
+ undef $rid;
+ $rid = Mojo::IOLoop->recurring($poll_interval => sub {
+ start_loop() if !$state;
});
-
- return $str;
+ chgstate('');
+ $nlcount = 0;
+
+ return $ser;
}
-our $last_min = time;
-our $last_hour = time;
-
my @min;
my @hour;
my $blk = shift;
my $loo = substr $blk,0,3;
unless ( $loo eq 'LOO') {
- dbg "Block invalid loo -> $loo" if isdbg('chan'); return;
+ dbg "Block invalid loo -> $loo" if isdbg 'chan'; return;
}
- my $t;
+ my $tmp;
+ my $rain;
my %h;
- # Common ones
- $h{Pressure_Trend} = unpack("C", substr $blk,3,1);
- $h{Pressure_Trend_txt} = $bar_trend{$h{'Pressure_Trend'}};
- $t = unpack("s", substr $blk,7,2) / 1000;
- $h{Pressure} = sprintf("%.0f",in2mb($t))+0;
+ my $crc_calc = CRC_CCITT($blk);
- $t = unpack("s", substr $blk,9,2) / 10;
- $h{Temp_In} = sprintf("%.1f", f2c($t))+0;
-
- $t = unpack("s", substr $blk,12,2) / 10;
- $h{Temp_Out} = sprintf("%.1f", f2c($t))+0;
+ if ($crc_calc==0) {
- $t = unpack("C", substr $blk,14,1);
- $h{Wind} = sprintf("%.1f",mph2mps($t))+0;
- $h{Dir} = unpack("s", substr $blk,16,2)+0;
+ # Common ones
+ $tmp = unpack("s", substr $blk,7,2) / 1000;
+ $h{Pressure} = nearest(1, in2mb($tmp));
- my $wind = {w => $h{Wind}, d => $h{Dir}};
- push @min, $wind;
+ $tmp = unpack("s", substr $blk,9,2) / 10;
+ $h{Temp_In} = nearest(0.1, f2c($tmp));
- $h{'Humidity_Out'} = unpack("C", substr $blk,33,1)+0;
- $h{'Humidity_In'} = unpack("C", substr $blk,11,1)+0;
+ $tmp = unpack("s", substr $blk,12,2) / 10;
+ $h{Temp_Out} = nearest(0.1, f2c($tmp));
- $t = unpack("C", substr $blk,43,1)+0;
- $h{'UV'} = $t unless $t >= 255;
- $t = unpack("s", substr $blk,44,2)+0; # watt/m**2
- $h{'Solar'} = $t unless $t >= 32767;
+ $tmp = unpack("C", substr $blk,14,1);
+ $h{Wind} = nearest(0.1, mph2mps($tmp));
+ $h{Dir} = unpack("s", substr $blk,16,2)+0;
- $h{'Rain_Rate'} = sprintf("%0.1f",unpack("s", substr $blk,41,2) * $rain_mult)+0;
- $h{'Rain_Day'} = sprintf("%0.1f", unpack("s", substr $blk,50,2) * $rain_mult)+0;
+ my $wind = {w => $h{Wind}, d => $h{Dir}};
+ push @{$ld->{wind_min}}, $wind;
- # what sort of packet is it?
+ $h{Humidity_Out} = unpack("C", substr $blk,33,1)+0;
+ $h{Humidity_In} = unpack("C", substr $blk,11,1)+0;
- $t = unpack("C", substr $blk,4,1);
- if ($t) {
+ $tmp = unpack("C", substr $blk,43,1)+0;
+ $h{UV} = $tmp unless $tmp >= 255;
+ $tmp = unpack("s", substr $blk,44,2)+0; # watt/m**2
+ $h{Solar} = $tmp unless $tmp >= 32767;
- # Newer LOOP2 packet
- $t = unpack("C", substr $blk,18,2);
-# $h{Wind_Avg_10} = sprintf("%.1f",mph2mps($t/10))+0;
- $t = unpack("C", substr $blk,20,2);
-# $h{Wind_Avg_2} = sprintf("%.1f",mph2mps($t/10))+0;
- $t = unpack("C", substr $blk,22,2);
-# $h{Wind_Gust_10} = sprintf("%.1f",mph2mps($t/10))+0;
-
-# $h{Dir_Avg_10} = unpack("C", substr $blk,24,2)+0;
- $t = unpack("C", substr $blk,30,2);
- $h{Dew_Point} = sprintf("%0.1f", f2c($t))+0;
+ # $h{Rain_Rate} = nearest(0.1,unpack("s", substr $blk,41,2) * $rain_mult);
+ $rain = $h{Rain_Day} = nearest(0.1, unpack("s", substr $blk,50,2) * $rain_mult);
+ my $delta_rain = $h{Rain} = nearest(0.1, ($rain >= $ld->{last_rain} ? $rain - $ld->{last_rain} : $rain)) if $loop_count;
+ $ld->{last_rain} = $rain;
- } else {
-
- # Older LOOP packet
- $t = unpack("C", substr $blk,15,1);
-# $h{Wind_Avg_10} = sprintf("%.1f",mph2mps($t))+0;
- $h{'Dew_Point'} = sprintf("%0.1f", dew_point($h{Temp_Out}, $h{'Humidity_Out'}))+0;
-
- $h{'Rain_Month'} = sprintf("%0.1f", unpack("s", substr $blk,52,2) * $rain_mult)+0;
- $h{'Rain_Year'} = sprintf("%0.1f", unpack("s", substr $blk,54,2) * $rain_mult)+0;
-
-
- $h{'Batt_TX_OK'} = (unpack("C", substr $blk,86,1)+0) ^ 1;
- $h{'Batt_Console'} = sprintf("%0.2f", unpack("s", substr $blk,87,2) * 0.005859375)+0;
- $h{'Forecast_Icon'} = unpack("C", substr $blk,89,1);
- $h{'Forecast_Rule'} = unpack("C", substr $blk,90,1);
-
- $h{'Sunrise'} = sprintf( "%04d", unpack("S", substr $blk,91,2) );
- $h{'Sunrise'} =~ s/(\d{2})(\d{2})/$1:$2/;
- $h{'Sunset'} = sprintf( "%04d", unpack("S", substr $blk,93,2) );
- $h{'Sunset'} =~ s/(\d{2})(\d{2})/$1:$2/;
- }
+ # what sort of packet is it?
+ my $sort = unpack("C", substr $blk,4,1);
+ if ($sort) {
- my $crc = unpack "%n", substr($blk,97,2);
- my $crc_calc = CRC_CCITT($blk);
+ # Newer LOOP2 packet
+ $tmp = unpack("C", substr $blk,18,2);
+ # $h{Wind_Avg_10} = nearest(0.1,mph2mps($tmp/10));
+ $tmp = unpack("C", substr $blk,20,2);
+ # $h{Wind_Avg_2} = nearest(0.1,mph2mps($tmp/10));
+ $tmp = unpack("C", substr $blk,22,2);
+ # $h{Wind_Gust_10} = nearest(0.1,mph2mps($tmp/10));
- if ($crc_calc==0) {
- my $o = gen_hash_diff($last_reading, \%h);
- $last_reading = \%h;
- my $t = time;
- my $j;
+ # $h{Dir_Avg_10} = unpack("C", substr $blk,24,2)+0;
+ $tmp = unpack("C", substr $blk,30,2);
+ $h{Dew_Point} = nearest(0.1, f2c($tmp));
+
+ } else {
+
+ # Older LOOP packet
+ $tmp = unpack("C", substr $blk,15,1);
+ # $h{Wind_Avg_10} = nearest(0.1,mph2mps($tmp));
+ $h{Dew_Point} = nearest(0.1, dew_point($h{Temp_Out}, $h{Humidity_Out}));
+ $h{Rain_Month} = nearest(0.1, unpack("s", substr $blk,52,2) * $rain_mult);
+ $h{Rain_Year} = nearest(0.1, unpack("s", substr $blk,54,2) * $rain_mult);
+ }
+
+ my $ts = time;
my $s;
- if ($t >= $last_min + 60) {
- my $a = average(@min);
- push @hour, $a;
+ if ($ts >= $ld->{last_hour} + 3600) {
+ $h{Pressure_Trend} = unpack("C", substr $blk,3,1);
+ $h{Pressure_Trend_txt} = $bar_trend{$h{Pressure_Trend}};
+ $h{Batt_TX_OK} = (unpack("C", substr $blk,86,1)+0) ^ 1;
+ $h{Batt_Console} = nearest(0.01, unpack("s", substr $blk,87,2) * 0.005859375);
+ $h{Forecast_Icon} = unpack("C", substr $blk,89,1);
+ $h{Forecast_Rule} = unpack("C", substr $blk,90,1);
+ $h{Sunrise} = sprintf( "%04d", unpack("S", substr $blk,91,2) );
+ $h{Sunrise} =~ s/(\d{2})(\d{2})/$1:$2/;
+ $h{Sunset} = sprintf( "%04d", unpack("S", substr $blk,93,2) );
+ $h{Sunset} =~ s/(\d{2})(\d{2})/$1:$2/;
+
+ if ($loop_count) { # i.e not the first
+ my $a = wind_average(scalar @{$ld->{wind_hour}} ? @{$ld->{wind_hour}} : {w => $h{Wind}, d => $h{Dir}});
+
+ $h{Wind_1h} = nearest(0.1, $a->{w});
+ $h{Dir_1h} = nearest(0.1, $a->{d});
+
+ $a = wind_average(@{$ld->{wind_min}});
+ $h{Wind_1m} = nearest(0.1, $a->{w});
+ $h{Dir_1m} = nearest(1, $a->{d});
+
+ ($h{Rain_1m}, $h{Rain_1h}, $h{Rain_24h}) = calc_rain($rain);
+ }
+ $ld->{last_rain_min} = $ld->{last_rain_hour} = $rain;
+
+ $s = genstr($ts, 'h', \%h);
+
+ $ld->{last_hour} = int($ts/3600)*3600;
+ $ld->{last_min} = int($ts/60)*60;
+ @{$ld->{wind_hour}} = ();
+ @{$ld->{wind_min}} = ();
- $h{Wind_1m} = sprintf("%0.1f", $a->{w})+0;
- $h{Dir_1m} = sprintf("%0.0f", $a->{d})+0;
+ write_ld();
- $j = encode_json(\%h);
- $s = qq|{"t":$t,"m":$j}|;
- $last_min = $t;
- if ($t >= $last_hour + 3600) {
- my $a = average(@hour);
+ } elsif ($ts >= $ld->{last_min} + 60) {
+ my $a = wind_average(@{$ld->{wind_min}});
+ my %save;
+
+ push @{$ld->{wind_hour}}, $a;
+
+ if ($loop_count) { # i.e not the first
+ my $rm;
- delete $h{Wind_1m};
- delete $h{Dir_1m};
- $h{Wind_1h} = sprintf("%0.1f", $a->{w})+0;
- $h{Dir_1h} = sprintf("%0.0f", $a->{d})+0;
-
- $j = encode_json(\%h);
- $s = qq|{"t":$t,"h":$j}|;
- $last_hour = $t;
+ $h{Wind_1m} = nearest(0.1, $a->{w});
+ $h{Dir_1m} = nearest(1, $a->{d});
+ ($h{Rain_1m}, $h{Rain_1h}, $h{Rain_24h}) = calc_rain($rain);
+ }
+ $ld->{last_rain_min} = $rain;
+
+ $s = genstr($ts, 'm', \%h);
+
+ $ld->{last_min} = int($ts/60)*60;
+ @{$ld->{wind_min}} = ();
+
+ write_ld();
+
+ } else {
+ my $o = gen_hash_diff($ld->{last_h}, \%h);
+ if ($o) {
+ $s = genstr($ts, 'r', $o);
+ }
+ else {
+ dbg "loop rec not changed" if isdbg 'chan';
}
- } elsif ($o) {
- $j = encode_json($o);
- $s = qq|{"t":$t,"r":$j}|;
- }
- if ($s) {
- dbg $s;
- $dlog->writenow($s);
}
+ output_str($s) if $s;
+ $ld->{last_h} = \%h;
+ ++$loop_count;
} else {
dbg "CRC check failed for LOOP data!";
}
+ return;
+}
+
+sub genstr
+{
+ my $ts = shift;
+ my $let = shift;
+ my $h = shift;
+
+ my $j = $json->encode($h);
+ my ($sec,$min,$hr) = (gmtime $ts)[0,1,2];
+ my $tm = sprintf "%02d:%02d:%02d", $hr, $min, $sec;
+
+ return qq|{"tm":"$tm","t":$ts,"$let":$j}|;
+}
+
+sub output_str
+{
+ my $s = shift;
+ dbg $s;
+# say $s;
+ $dlog->writenow($s);
}
sub gen_hash_diff
return $_[0] * 33.8637526;
}
-sub average
+sub wind_average
{
- my %out;
+ my ($sindir, $cosdir, $wind);
my $count;
foreach my $r (@_) {
- while (my ($k, $v) = each %$r) {
- $out{$k} += $v;
- }
+ $wind += $r->{w};
+ $sindir += sin(d2r($r->{d})) * $r->{w};
+ $cosdir += cos(d2r($r->{d})) * $r->{w};
++$count;
}
- while (my ($k, $v) = each %out) {
- $out{$k} /= $count;
+
+ my $avhdg = r2d(atan2($sindir, $cosdir));
+ $avhdg += 360 if $avhdg < 0;
+ return {w => nearest(0.1,$wind / $count), d => nearest(0.1,$avhdg)};
+}
+
+# radians to degrees
+sub r2d
+{
+ my $n = shift;
+ return ($n / pi) * 180;
+}
+
+# degrees to radians
+sub d2r
+{
+ my $n = shift;
+ return ($n / 180) * pi;
+}
+
+sub calc_rain
+{
+ my $rain = shift;
+
+ $ld->{rain24} ||= [];
+
+ my $Rain_1h = nearest(0.1, $rain >= $ld->{last_rain_hour} ? $rain - $ld->{last_rain_hour} : $rain); # this is the rate for this hour, so far
+ my $rm = $rain >= $ld->{last_rain_min} ? $rain - $ld->{last_rain_min} : $rain;
+ my $Rain_1m = nearest(0.1, $rm);
+ push @{$ld->{rain24}}, $Rain_1m;
+ $ld->{rain_24} += $rm;
+ while (@{$ld->{rain24}} > 24*60) {
+ $ld->{rain_24} -= shift @{$ld->{rain24}};
+ }
+ my $Rain_24h = nearest(0.1, $ld->{rain_24});
+ return ($Rain_1m, $Rain_1h, $Rain_24h);
+}
+
+sub read_ld
+{
+ return unless $dataf;
+
+ seek $dataf, 0, 0;
+ my $s = <$dataf>;
+ chomp $s;
+ dbg "read loop data: $s" if isdbg 'json';
+ $ld = $json->decode($s) if length $s;
+
+ # sort out rain stats
+ my $c;
+ if (($c = @{$ld->{rain24}}) < 24*60) {
+ my $diff = 24*60 - $c;
+ unshift @{$ld->{rain24}}, 0 for 0 .. $diff;
}
+ my $rain;
+ $rain += $_ for @{$ld->{rain24}};
+ $ld->{rain_24} = nearest(0.1, $rain);
+ delete $ld->{hour};
+ delete $ld->{min};
+}
- return \%out;
+sub write_ld
+{
+ return unless $dataf;
+
+ seek $dataf, 0, 0;
+ truncate $dataf, 0;
+ $ld->{ts} = time;
+ my $s = $json->encode($ld);
+ dbg "write loop data: $s" if isdbg 'json';
+ print $dataf "$s\n";
}
+
+
+__DATA__
+
+@@ index.html.ep
+<!DOCTYPE html>
+<html>
+ <head><title>DWeather</title></head>
+ <body>
+ <script>
+ var ws;
+ if ("WebSocket" in window) {
+ ws = new WebSocket('<%= url_for('index')->to_abs %>');
+ //ws = new WebSocket();
+ }
+ if(typeof(ws) !== 'undefined') {
+ ws.onmessage = function (event) {
+ document.body.innerHTML += JSON.parse(event.data).test;
+ };
+ ws.onopen = function (event) {
+ ws.send(JSON.stringify({weather: 'WebSocket support works! ♥'}));
+ };
+ }
+ else {
+ document.body.innerHTML += 'Browser does not support WebSockets.';
+ }
+
+ var ws = new WebSocket('<%= url_for('weather')->to_abs %>');
+
+ // Incoming messages
+ ws.onmessage = function(event) {
+ document.body.innerHTML += event.data + '<br/>';
+ };
+
+ </script>
+ <h1>DWeather</h1>
+
+ </body>
+</html>