add history per month

3 files changed, 212 insertions, 21 deletions

diff --git a/lib/Travelynx.pm b/lib/Travelynx.pm
index b81ec46..778e194 100755
--- a/lib/Travelynx.pm
+++ b/lib/Travelynx.pm
@@ -301,6 +301,29 @@ sub startup {
 		}
 	);
 	$self->attr(
+		get_interval_actions_query => sub {
+			my ($self) = @_;
+
+			# Note: Selecting on real_time would be more intuitive, but is not
+			# possible at the moment -- non-realtime checkouts and undo actions
+			# lack both sched_time and real_time.
+			return $self->app->dbh->prepare(
+				qq{
+			select action_id, extract(epoch from action_time), stations.ds100, stations.name,
+			train_type, train_line, train_no, train_id,
+			extract(epoch from sched_time), extract(epoch from real_time),
+			route, messages
+			from user_actions
+			left outer join stations on station_id = stations.id
+			where user_id = ?
+			and action_time >= to_timestamp(?)
+			and action_time < to_timestamp(?)
+			order by action_time desc
+		}
+			);
+		}
+	);
+	$self->attr(
 		get_journey_actions_query => sub {
 			my ($self) = @_;
 
@@ -881,17 +904,45 @@ qq{select * from pending_mails where email = ? and num_tries > 1;}
 		'get_user_travels' => sub {
 			my ( $self, %opt ) = @_;
 
-			my $uid   = $self->current_user->{id};
+			my $uid = $opt{uid} || $self->current_user->{id};
 			my $query = $self->app->get_all_actions_query;
 			if ( $opt{limit} ) {
 				$query = $self->app->get_last_actions_query;
 			}
 
-			if ( $opt{uid} and $opt{checkin_epoch} and $opt{checkout_epoch} ) {
+			if ( $opt{checkin_epoch} and $opt{checkout_epoch} ) {
 				$query = $self->app->get_journey_actions_query;
-				$query->execute( $opt{uid}, $opt{checkin_epoch},
+				$query->execute( $uid, $opt{checkin_epoch},
 					$opt{checkout_epoch} );
 			}
+			elsif ( $opt{after} and $opt{before} ) {
+
+         # Each journey consists of at least two database entries: one for
+         # checkin, one for checkout. A simple query using e.g.
+         # after = YYYY-01-01T00:00:00 and before YYYY-02-01T00:00:00
+         # will miss journeys where checkin and checkout take place in
+         # different months.
+         # We therefore add one day to the before timestamp and filter out
+         # journeys whose checkin lies outside the originally requested
+         # time range afterwards.
+         # For an additional twist, get_interval_actions_query filters based
+         # on the action time, not actual departure, as undo and force
+         # checkout actions lack sched_time and real_time data. By
+         # subtracting one day from "after" (i.e., moving it one day into
+         # the past), we make sure not to miss journeys where the real departure
+         # time falls into the interval, but the checkin time does not.
+         # Again, this is addressed in postprocessing at the bottom of this
+         # helper.
+         # This works under the assumption that there are no DB trains whose
+         # journey takes more than 24 hours. If this no longer holds,
+         # please adjust the intervals accordingly.
+				$query = $self->app->get_interval_actions_query;
+				$query->execute(
+					$uid,
+					$opt{after}->clone->subtract( days => 1 )->epoch,
+					$opt{before}->clone->add( days => 1 )->epoch
+				);
+			}
 			else {
 				$query->execute($uid);
 			}
@@ -989,18 +1040,15 @@ qq{select * from pending_mails where email = ? and num_tries > 1;}
 						  = $self->get_travel_distance( $ref->{from_name},
 							$ref->{to_name},
 							[ $ref->{from_name}, $ref->{to_name} ] );
-						$ref->{kmh_route} = $ref->{km_route} / (
-							(
-								$ref->{rt_duration} // $ref->{sched_duration}
-								  // 999999
-							) / 3600
-						);
-						$ref->{kmh_beeline} = $ref->{km_beeline} / (
-							(
-								$ref->{rt_duration} // $ref->{sched_duration}
-								  // 999999
-							) / 3600
-						);
+						my $kmh_divisor
+						  = ( $ref->{rt_duration} // $ref->{sched_duration}
+							  // 999999 ) / 3600;
+						$ref->{kmh_route}
+						  = $kmh_divisor ? $ref->{km_route} / $kmh_divisor : -1;
+						$ref->{kmh_beeline}
+						  = $kmh_divisor
+						  ? $ref->{km_beeline} / $kmh_divisor
+						  : -1;
 					}
 					if (    $opt{checkin_epoch}
 						and $action
@@ -1012,6 +1060,13 @@ qq{select * from pending_mails where email = ? and num_tries > 1;}
 				$prev_action = $action;
 			}
 
+			if ( $opt{before} and $opt{after} ) {
+				@travels = grep {
+					      $_->{rt_departure} >= $opt{after}
+					  and $_->{rt_departure} < $opt{before}
+				} @travels;
+			}
+
 			return @travels;
 		}
 	);
@@ -1112,6 +1167,54 @@ qq{select * from pending_mails where email = ? and num_tries > 1;}
 	);
 
 	$self->helper(
+		'compute_journey_stats' => sub {
+			my ( $self, @journeys ) = @_;
+			my $km_route         = 0;
+			my $km_beeline       = 0;
+			my $min_travel_sched = 0;
+			my $min_travel_real  = 0;
+			my $delay_dep        = 0;
+			my $delay_arr        = 0;
+			my $num_trains       = 0;
+			my $num_journeys     = 0;
+
+			for my $journey (@journeys) {
+				$num_trains++;
+				$num_journeys++;
+				$km_route   += $journey->{km_route};
+				$km_beeline += $journey->{km_beeline};
+				if ( $journey->{sched_duration} > 0 ) {
+					$min_travel_sched += $journey->{sched_duration} / 60;
+				}
+				if ( $journey->{rt_duration} > 0 ) {
+					$min_travel_real += $journey->{rt_duration} / 60;
+				}
+				if ( $journey->{sched_departure} and $journey->{rt_departure} )
+				{
+					$delay_dep
+					  += (  $journey->{rt_departure}->epoch
+						  - $journey->{sched_departure}->epoch ) / 60;
+				}
+				if ( $journey->{sched_arrival} and $journey->{rt_arrival} ) {
+					$delay_arr
+					  += (  $journey->{rt_arrival}->epoch
+						  - $journey->{sched_arrival}->epoch ) / 60;
+				}
+			}
+			return {
+				km_route         => $km_route,
+				km_beeline       => $km_beeline,
+				num_trains       => $num_trains,
+				num_journeys     => $num_journeys,
+				min_travel_sched => $min_travel_sched,
+				min_travel_real  => $min_travel_real,
+				delay_dep        => $delay_dep,
+				delay_arr        => $delay_arr,
+			};
+		}
+	);
+
+	$self->helper(
 		'navbar_class' => sub {
 			my ( $self, $path ) = @_;
 
@@ -1152,6 +1255,7 @@ qq{select * from pending_mails where email = ? and num_tries > 1;}
 	$authed_r->get('/account')->to('account#account');
 	$authed_r->get('/export.json')->to('account#json_export');
 	$authed_r->get('/history')->to('traveling#history');
+	$authed_r->get('/history/:year/:month')->to('traveling#monthly_history');
 	$authed_r->get('/history.json')->to('traveling#json_history');
 	$authed_r->get('/journey/:id')->to('traveling#journey_details');
 	$authed_r->get('/s/*station')->to('traveling#station');
diff --git a/lib/Travelynx/Controller/Traveling.pm b/lib/Travelynx/Controller/Traveling.pm
index 8c5c286..f409b44 100755
--- a/lib/Travelynx/Controller/Traveling.pm
+++ b/lib/Travelynx/Controller/Traveling.pm
@@ -1,6 +1,7 @@
 package Travelynx::Controller::Traveling;
 use Mojo::Base 'Mojolicious::Controller';
 
+use DateTime;
 use Travel::Status::DE::IRIS::Stations;
 
 sub homepage {
@@ -233,10 +234,14 @@ sub history {
 	my ($self) = @_;
 	my $cancelled = $self->param('cancelled') ? 1 : 0;
 
+	my @journeys = $self->get_user_travels( cancelled => $cancelled );
+
 	$self->respond_to(
-		json =>
-		  { json => [ $self->get_user_travels( cancelled => $cancelled ) ] },
-		any => { template => 'history' }
+		json => { json => [@journeys] },
+		any  => {
+			template => 'history',
+			journeys => [@journeys]
+		}
 	);
 }
 
@@ -248,6 +253,60 @@ sub json_history {
 		json => [ $self->get_user_travels( cancelled => $cancelled ) ] );
 }
 
+sub monthly_history {
+	my ($self) = @_;
+	my $year   = $self->stash('year');
+	my $month  = $self->stash('month');
+	my $cancelled = $self->param('cancelled') ? 1 : 0;
+	my @journeys;
+	my $stats;
+	my @months
+	  = (
+		qw(Januar Februar März April Mai Juni Juli August September Oktober November Dezember)
+	  );
+
+	if ( not( $year =~ m{ ^ [0-9]{4} $ }x and $month =~ m{ ^ [0-9]{1,2} $ }x ) )
+	{
+		@journeys = $self->get_user_travels( cancelled => $cancelled );
+	}
+	else {
+		my $interval_start = DateTime->new(
+			time_zone => 'Europe/Berlin',
+			year      => $year,
+			month     => $month,
+			day       => 1,
+			hour      => 0,
+			minute    => 0,
+			second    => 0,
+		);
+		my $interval_end = $interval_start->clone->add( months => 1 );
+		@journeys = $self->get_user_travels(
+			cancelled => $cancelled,
+			verbose   => 1,
+			after     => $interval_start,
+			before    => $interval_end
+		);
+		$stats = $self->compute_journey_stats(@journeys);
+	}
+
+	$self->respond_to(
+		json => {
+			json => {
+				journeys   => [@journeys],
+				statistics => $stats
+			}
+		},
+		any => {
+			template   => 'history',
+			journeys   => [@journeys],
+			year       => $year,
+			month      => $months[ $month - 1 ],
+			statistics => $stats
+		}
+	);
+
+}
+
 sub journey_details {
 	my ($self) = @_;
 	my ( $uid, $checkin_ts, $checkout_ts ) = split( qr{-}, $self->stash('id') );
diff --git a/templates/history.html.ep b/templates/history.html.ep
index af24eed..0bed9ab 100644
--- a/templates/history.html.ep
+++ b/templates/history.html.ep
@@ -1,4 +1,32 @@
-% if (param('cancelled')) {
+% if (my $stats = stash('statistics')) {
+<h1><%= stash('month') %> <%= stash('year') %></h1>
+	<div class="row">
+		<div class="col s12">
+			<table class="striped">
+				<tr>
+					<th scope="row">Fahrten</th>
+					<td><%= $stats->{num_trains} %></td>
+				</tr>
+				<tr>
+					<th scope="row">Entfernung</th>
+					<td>ca. <%= sprintf('%.f', $stats->{km_route}) %> km
+						(Luftlinie: <%= sprintf('%.f', $stats->{km_beeline}) %> km)</td>
+				</tr>
+				<tr>
+					<th scope="row">Fahrtzeit</th>
+					<td><%= sprintf('%02d:%02d', $stats->{min_travel_real} / 60, $stats->{min_travel_real} % 60) %> Stunden
+						(nach Fahrplan: <%= sprintf('%02d:%02d', $stats->{min_travel_sched} / 60, $stats->{min_travel_sched} % 60) %>)<td>
+				</tr>
+				<tr>
+					<th scope="row">Kumulierte Verspätung</th>
+					<td>Bei Abfahrt: <%= sprintf('%02d:%02d', $stats->{delay_dep} / 60, $stats->{delay_dep} % 60) %> Stunden<br/>
+						Bei Ankunft: <%= sprintf('%02d:%02d', $stats->{delay_arr} / 60, $stats->{delay_arr} % 60) %> Stunden</td>
+				</tr>
+			</table>
+		</div>
+	</div>
+% }
+% elsif (param('cancelled')) {
 <h1>Ausgefallene Fahrten</h1>
 <div class="row">
 	<div class="col s12">
@@ -10,7 +38,7 @@
 </div>
 % }
 % else {
-<h1>Bisherige Fahrten</h1>
+<h1>Fahrten</h1>
 <div class="row">
 	<div class="col s12">
 		<ul>
@@ -33,7 +61,7 @@
 				</tr>
 			</thead>
 			<tbody>
-				% for my $travel (get_user_travels(cancelled => (param('cancelled') ? 1 : 0))) {
+				% for my $travel (@{$journeys}) {
 					% if ($travel->{completed}) {
 						% my $detail_link = '/journey/' . current_user()->{id} . '-' . $travel->{checkin}->epoch . '-' . $travel->{checkout}->epoch;
 						<tr>