track mtime of data files
[MojoFacets.git] / lib / MojoFacets / Data.pm
index 86deb39..8587d9f 100644 (file)
@@ -40,17 +40,22 @@ sub index {
                files => [ @files ],
                size => $size,
                loaded => $loaded,
+               filters => $filters,
        );
 }
 
 sub _load_path {
        my ( $self, $path ) = @_;
 
-       return if defined $loaded->{$path}->{data};
-
        my $full_path = $self->app->home->rel_file( 'data/' . $path );
        die "$full_path $!" unless -r $full_path;
 
+       if ( defined $loaded->{$path}->{data} ) {
+               my $mtime = (stat($full_path))[9];
+               return if $loaded->{$path}->{mtime} == $mtime;
+               warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
+       }
+
        # we could use Mojo::JSON here, but it's too slow
 #      $data = from_json read_file $path;
        my $data = read_file $full_path;
@@ -81,7 +86,7 @@ sub _load_path {
                                        last;
                                }
                                shift @lines;
-                               $v[ $#v ] .= shift @more_v;
+                               $v[ $#v ] .= shift @more_v if @more_v;
                                push @v, @more_v if @more_v;
 
                                if ( $#v > $#header ) {
@@ -102,19 +107,21 @@ sub _load_path {
        foreach my $e ( @{ $data->{items} } ) {
                foreach my $n ( keys %$e ) {
                        $stats->{$n}->{count}++;
+                       my @v;
                        if ( ref $e->{$n} eq 'ARRAY' ) {
-
                                $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
-
-                               foreach my $x ( @{$e->{$n}} ) {
-                                       $stats->{$n}->{numeric}++
-                                               if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
-                               }
-
+                               @v = @{ $e->{$n} };
                        } else {
+                               @v = ( $e->{$n} );
+                       }
+
+                       foreach my $x ( @v ) {
                                $stats->{$n}->{numeric}++
-                                       if $e->{$n} =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
+                                       if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
+                               $stats->{$n}->{empty}++
+                                       if length $x == 0; # faster than $x =~ m/^\s*$/;
                        }
+
                }
        }
 
@@ -124,6 +131,16 @@ sub _load_path {
                        if $stats->{$n}->{array} == $stats->{$n}->{count};
        }
 
+       if ( ! @header ) {
+               if ( defined $data->{header} ) {
+                       if ( ref $data->{header} eq 'ARRAY' ) {
+                               @header = @{ $data->{header} };
+                       } else {
+                               warn "header not array ", dump( $data->{header} );
+                       }
+               }
+       }
+
        @header =
                sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
                grep { defined $stats->{$_}->{count} } keys %$stats
@@ -136,6 +153,7 @@ sub _load_path {
                stats  => $stats,
                full_path => $full_path,
                size => -s $full_path,
+               mtime => (stat($full_path))[9],
                data => $data,
        };
 
@@ -155,9 +173,15 @@ sub load {
        $self->_load_path( $path );
 
        $self->session( 'header' => $loaded->{$path}->{header} );
-       $self->session( 'columns' => $loaded->{$path}->{header} );
-
-       $self->redirect_to( '/data/columns' );
+       if ( ! defined $loaded->{$path}->{columns} ) {
+               $self->session( 'columns' => $loaded->{$path}->{header} );
+               $self->session( 'order'   => $loaded->{$path}->{header}->[0] );
+               $self->redirect_to( '/data/columns' );
+       } else {
+               $self->session( 'columns' => $loaded->{$path}->{columns} );
+               $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
+               $self->redirect_to( '/data/items' );
+       }
 }
 
 
@@ -170,11 +194,23 @@ sub _loaded {
 }
 
 
+sub _checked {
+       my $self = shift;
+       my $checked;
+       $checked->{$_}++ foreach @_;
+#      warn "# _checked ",dump($checked);
+       return $checked;
+}
 
 
 sub columns {
     my $self = shift;
 
+       if ( $self->param('columns') ) {
+               $self->_perm_array('columns');
+               $self->redirect_to('/data/items');
+       }
+
        my $stats = $self->_loaded( 'stats' ); # || $self->redirect_to( '/data/index' );
 
        my @columns;
@@ -196,9 +232,11 @@ sub _perm_array {
     my ($self,$name) = @_;
 
        my @array = $self->param($name);
+       my $path  = $self->session('path');
 
        if ( @array ) {
                $self->session($name => [ @array ]);
+               $loaded->{$path}->{$name} = [ @array ];
        } elsif ( my $session = $self->session($name) ) {
                if ( ref $session eq 'ARRAY' ) {
                        @array = @$session;
@@ -206,7 +244,7 @@ sub _perm_array {
                        die "$name not array ",dump($session);
                }
        }
-       warn "# $name ",dump @array;
+       #warn "# $name ",dump @array;
        return @array;
 }
 
@@ -227,7 +265,7 @@ sub _perm_scalar {
                $self->session($name => $scalar);
        }
 
-       warn "# $name ",dump $scalar;
+       warn "# _perm_scalar $name ",dump $scalar;
        return $scalar;
 }
 
@@ -237,49 +275,99 @@ sub filter {
        my $name = $self->param('filter_name') || die "name?";
        my @vals = $self->param('filter_vals');
 
-       warn "# filter $name vals ",dump(@vals);
+       $self->_remove_filter( $name );
+       $self->_filter_on_data( $name, @vals ) if @vals;
 
-       if ( @vals ) {
-               $filters->{$name} = [ @vals ];
-       } else {
-               delete $filters->{$name};
+       $self->session( 'offset' => 0 );
+
+       $self->redirect_to('/data/items');
+}
+
+sub _filter_on_data {
+       my ( $self, $name, @vals ) = @_;
+
+       my $path = $self->session('path');
+
+       if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
+               warn "filter $name not found in data set";
+               return;
        }
 
-       warn "# filters ",dump($filters);
+       $filters->{$name} = [ @vals ];
+       warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 
-       $self->session( 'offset' => 0 );
+       my $filter_hash;
+       $filter_hash->{$_}++ foreach @vals;
 
-       $self->redirect_to('/data/items');
+       #warn "# filter_hash ",dump( $filter_hash );
+
+       my $items = $self->_loaded('data')->{items};
+
+       my $include_missing = defined $filter_hash->{_missing};
+       my $filtered_items;
+
+       foreach my $i ( 0 .. $#$items ) {
+
+               if ( defined $items->[$i]->{$name} ) {
+                       foreach my $v ( @{ $items->[$i]->{$name} } ) {
+                               if ( defined $filter_hash->{ $v } ) {
+                                       $filtered_items->{$i}++;
+                               }
+                       }
+               } elsif ( $include_missing ) {
+                       $filtered_items->{$i}++;
+               }
+       }
+
+       #warn "# filter $name ",dump($filtered_items);
+
+       $loaded->{$path}->{filters}->{$name} = $filtered_items;
+       warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 }
 
-sub _filter_item {
-       my ( $self, $filters, $i ) = @_;
-       my $pass = 1;
-       foreach my $n ( keys %$filters ) {
-               my @filter_values = @{ $filters->{$n} };
-               my $include_missing = grep { /^_missing/ } @filter_values;
-               if ( ! exists $i->{$n} ) {
-                       if ( $include_missing ) {
-                               $pass = 1;
-                               next;
-                       } else {
+sub _data_items {
+       my ( $self, $all ) = @_;
+       my $data = $self->_loaded( 'data' );
+
+       return @{ $data->{items} } if $all == 1;
+
+       my $filters = $self->_current_filters;
+       my $filter_value;
+       foreach my $f ( keys %$filters ) {
+               foreach my $n ( @{ $filters->{$f} } ) {
+                       $filter_value->{$f}->{$n} = 1;
+               }
+       }
+       my @items = @{ $data->{items} };
+       @items = grep {
+               my $i = $_;
+               my $pass = 1;
+               foreach my $n ( keys %$filter_value ) {
+                       if ( ! exists $i->{$n} ) {
+                               if ( defined $filter_value->{$n}->{_missing} ) {
+                                       $pass = 1;
+                                       next;
+                               } else {
+                                       $pass = 0;
+                                       last;
+                               }
+                       }
+                       # and match any of values in element
+                       my $have_values = 0;
+                       foreach my $v ( @{ $i->{$n} } ) { # FIXME not array?
+                               $have_values ||= 1 if defined $filter_value->{$n}->{$v};
+                       }
+                       if ( ! $have_values ) {
                                $pass = 0;
                                last;
                        }
                }
-               # and match any of values in element
-               my $have_values = 0;
-               foreach my $v ( @{ $i->{$n} } ) { # FIXME not array?
-                       $have_values ||= 1 if grep { m/^\Q$v\E$/ } @filter_values;
-               }
-               if ( ! $have_values ) {
-                       $pass = 0;
-                       last;
-               }
-       }
-       return $pass;
+               $pass;
+       } @items if $filter_value;
+       return @items;
 }
 
+
 sub _current_filters {
        my $self = shift;
        my $current_filters;
@@ -288,20 +376,46 @@ sub _current_filters {
                        grep { defined $filters->{ $_ } }
                        @{ $self->_loaded('header') }
                );
-       warn "# current_filters ",dump($current_filters);
+       #warn "# current_filters ",dump($current_filters);
        return $current_filters;
 }
 
-sub _data_items {
-       my $self = shift;
-       my $path = $self->session('path') || $self->redirect_to( '/data/index' );
+sub _data_sorted_by {
+       my ( $self, $order ) = @_;
+
+       my $path = $self->session('path');
+
+       warn "_data_sorted_by $order from $path";
+
+       if ( defined $loaded->{$path}->{sorted}->{$order} ) {
+               return $loaded->{$path}->{sorted}->{$order};
+       }
+
        my $data = $self->_loaded( 'data' );
-       my $current_filters = $self->_current_filters;
-       grep {
-               $filters ? $self->_filter_item( $current_filters, $_ ) : 1;
-       } @{ $data->{items} };
+       my $numeric = $self->_is_numeric($order);
+       my $missing = $numeric ? 0 : '';
+       no warnings qw(numeric);
+       my $nr = 0;
+       my @sorted = map {
+               $_->[0]
+       } sort {
+               if ( $numeric ) {
+                       $a->[1] <=> $b->[1]
+               } else {
+                       $a->[1] cmp $b->[1]
+               }
+       } map {
+               [ $nr++, exists $_->{$order} ? join('', @{$_->{$order}}) : $missing ]
+       } @{ $data->{items} }
+       ;
+
+       warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
+       #warn "# sorted ",dump( @sorted );
+
+       $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 }
 
+
 sub items {
        my $self = shift;
 
@@ -319,28 +433,79 @@ sub items {
        # fix offset when changing limit
        $offset = int( $offset / $limit ) * $limit;
 
-       # FIXME - multi-level sort
-       my $numeric = $self->_is_numeric($order);
-       my $missing = $numeric ? 0 : '';
-       no warnings qw(numeric);
-       my @sorted = sort {
-               my $v1 = exists $a->{$order} ? join('', @{$a->{$order}}) : $missing;
-               my $v2 = exists $b->{$order} ? join('', @{$b->{$order}}) : $missing;
-               ($v1,$v2) = ($v2,$v1) if $sort eq 'd';
-               $numeric ? $v1 <=> $v2 : $v1 cmp $v2 ;
-       } $self->_data_items;
+       my $sorted = $self->_data_sorted_by( $order );
+
+       my @filter_names;
+       if ( $filters ) {
+               foreach my $name ( keys %$filters ) {
+                       if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
+                               warn "skip filter $name not found in $path\n";
+                               next;
+                       }
+                       push @filter_names, $name;
+               }
+               warn "filter_names ",dump( @filter_names );
+               foreach my $name ( @filter_names ) {
+                       next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
+                       $self->_filter_on_data( $name, @{ $filters->{$name} } );
+               }
+       }
 
-#      warn "# sorted ", dump @sorted;
+       my $all_filters = join(' ',sort @filter_names,'order:',$order);
 
-       my $rows = $#sorted + 1;
+#      warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
+
+       if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
+
+               my $path_filters = $loaded->{$path}->{filters};
+
+               warn "create combined filter for $all_filters\n";
+
+               my @filtered;
+               foreach my $i ( 0 .. $#$sorted ) {
+                       my $pos = $sorted->[$i];
+
+                       if ( $#filter_names == -1 ) {
+                               push @filtered, $pos;
+                               next;
+                       }
+
+                       my $skip = 0;
+                       foreach ( @filter_names ) {
+                               $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
+                       }
+                       next if $skip;
+
+                       push @filtered, $pos;
+               }
+
+               $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
+       }
+
+       my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
+               if defined $loaded->{$path}->{filtered}->{$all_filters};
+
+       warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
+
+       my $sorted_items;
+       my $data = $self->_loaded('data');
+       my $from_end = $sort eq 'd' ? $#$filtered : 0;
+       foreach ( 0 .. $limit ) {
+               my $i = $_ + $offset;
+               last unless defined $filtered->[$i];
+               $i = $from_end - $i if $from_end;
+               push @$sorted_items, $data->{items}->[ $filtered->[$i] ];
+       }
+
+       warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 
        $self->render(
                order => $order,
                offset => $offset,
                limit => $limit,
-               sorted => [ splice @sorted, $offset, $limit ],
+               sorted => $sorted_items,
                columns => [ @columns ],
-               rows => $rows,
+               rows => $#$filtered + 1,
                numeric => { map { $_, $self->_is_numeric($_) } @columns },
                filters => $self->_current_filters,
        );
@@ -361,8 +526,29 @@ sub _is_numeric {
        my $stats = $self->_loaded( 'stats' );
 
        # sort facet numerically if more >50% elements are numeric
+       my $count = $stats->{$name}->{count};
+       $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
        defined $stats->{$name}->{numeric} &&
-               $stats->{$name}->{numeric} > $stats->{$name}->{count} / 2;
+               $stats->{$name}->{numeric} > $count / 2;
+}
+
+sub _remove_filter {
+       my ($self,$name) = @_;
+       warn "_remove_filter $name\n";
+
+       my $path = $self->session('path');
+
+       delete $filters->{$name};
+       delete $loaded->{$path}->{filters}->{$name};
+       warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
+
+       foreach (
+                       grep { /\b$name\b/ }
+                       keys %{ $loaded->{$path}->{filtered} }
+       ) {
+               delete $loaded->{$path}->{filtered}->{$_};
+               warn "remove filtered cache $_";
+       }
 }
 
 sub facet {
@@ -370,60 +556,80 @@ sub facet {
 
        my $path = $self->session('path') || $self->redirect_to( '/data/index' );
 
-       if ( my $remove = $self->param('remove') ) {
-               delete $filters->{$remove};
+       if ( my $name = $self->param('remove') ) {
+               $self->_remove_filter( $name );
                $self->redirect_to( '/data/items' );
        }
 
        my $facet;
        my $name = $self->param('name') || die "no name";
 
-       foreach my $i ( $self->_data_items ) {
-               if ( ! exists $i->{$name} ) {
+       my $all = $self->_perm_scalar('all', 1);
+       my $data = $self->_loaded('data');
+
+       my $filters = $self->_current_filters;
+       my $all_filters = join(' ',sort keys %$filters,'order:',$self->session('order'));
+       my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
+               if defined $loaded->{$path}->{filtered}->{$all_filters};
+
+       if ( ! $filtered || $all ) {
+               $filtered = [ 0 .. $#{ $data->{items} } ];
+               warn "filter all values\n";
+       } else {
+               warn "filter using $all_filters\n";
+       }
+
+       foreach my $i ( @$filtered ) {
+               my $item = $data->{items}->[$i];
+               if ( ! exists $item->{$name} ) {
                        $facet->{ _missing }++;
-               } elsif ( ref $i->{$name} eq 'ARRAY' ) {
-                       $facet->{$_}++ foreach @{ $i->{$name} };
+               } elsif ( ref $item->{$name} eq 'ARRAY' ) {
+                       $facet->{$_}++ foreach @{ $item->{$name} };
                } else {
-                       $facet->{ $i->{$name} }++;
+                       $facet->{ $item->{$name} }++;
                }
        }
 
 #      warn "# facet $name ",dump $facet;
 
        my $checked;
-       if ( defined $filters->{$name} ) {
-               $checked = $self->_checked( @{ $filters->{$name} } );
-       }
+       my @facet_names =
+                 $all                      ? keys %$facet
+               : defined $filters->{$name} ? @{ $filters->{$name} }
+               : keys %$facet;
 
-       my $sort = $self->param('sort') || 'c';
+       $checked = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
 
-       # sort facet numerically if more >50% elements are numeric
        my $numeric = $self->_is_numeric($name);
 
-       my @facet_names = sort {
+       my $sort = $self->param('sort');
+       $sort ||= $numeric ? 'a' : 'c';
+
+       @facet_names = sort {
                if ( $sort =~ m/a/i ) {
                        $numeric ? $a <=> $b : lc $a cmp lc $b;
                } elsif ( $sort =~ m/d/i ) {
                        $numeric ? $b <=> $a : lc $b cmp lc $a;
                } elsif ( $sort =~ m/c/i ) {
-                       $facet->{$b} <=> $facet->{$a};
+                       ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
                } else {
                        warn "unknown sort: $sort";
                        $a cmp $b;
                }
-       } keys %$facet;
+       } @facet_names;
 
        $self->render( name => $name, facet => $facet, checked => $checked,
                facet_names => \@facet_names, sort => $sort, numeric => $numeric,
        );
 }
 
-sub _checked {
+sub edit {
        my $self = shift;
-       my $checked;
-       $checked->{$_}++ foreach @_;
-       warn "# _checked ",dump($checked);
-       return $checked;
+       my $content = $self->param('content');
+
+       $self->render(
+               content => $content
+       );
 }
 
 1;