lib/MojoFacets/Data.pm

   1 package MojoFacets::Data;
   2
   3 use strict;
   4 use warnings;
   5
   6 use base 'Mojolicious::Controller';
   7
   8 use Data::Dump qw(dump);
   9 use File::Slurp;
  10 use JSON;
  11 use Encode;
  12 use locale;
  13 use File::Find;
  14
  15 our $loaded;
  16 our $filters;
  17
  18 sub index {
  19         my $self = shift;
  20
  21         my $path = $self->app->home->rel_dir('data');
  22         die "no data dir $path" unless -d $path;
  23
  24         my @files;
  25         find( sub {
  26                 my $file = $File::Find::name;
  27                 if ( -f $file && $file =~ m/\.(js(on)?|txt)$/ ) {
  28                         $file =~ s/$path\/*//;
  29                         push @files, $file;
  30                 } else {
  31                         warn "IGNORE: $file\n";
  32                 }
  33         }, $path);
  34
  35         @files = sort { lc $a cmp lc $b } @files;
  36         my $size;
  37         $size->{$_} = -s "$path/$_" foreach @files;
  38
  39         $self->render(
  40                 files => [ @files ],
  41                 size => $size,
  42                 loaded => $loaded,
  43                 filters => $filters,
  44         );
  45 }
  46
  47 sub _load_path {
  48         my ( $self, $path ) = @_;
  49
  50         my $full_path = $self->app->home->rel_file( 'data/' . $path );
  51         die "$full_path $!" unless -r $full_path;
  52
  53         if ( defined $loaded->{$path}->{data} ) {
  54                 my $mtime = (stat($full_path))[9];
  55                 return if $loaded->{$path}->{mtime} == $mtime;
  56                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
  57         }
  58
  59         # we could use Mojo::JSON here, but it's too slow
  60 #       $data = from_json read_file $path;
  61         my $data = read_file $full_path;
  62         warn "# data snippet: ", substr($data,0,200);
  63         my @header;
  64         if ( $path =~ m/\.js/ ) {
  65                 Encode::_utf8_on($data);
  66                 $data = from_json $data;
  67         } elsif ( $path =~ m/\.txt/ ) {
  68                 my @lines = split(/\r?\n/, $data);
  69                 $data = { items => [] };
  70
  71                 my $header_line = shift @lines;
  72                 my $multiline = $header_line =~ s/\^//g;
  73                 @header = split(/\|/, $header_line );
  74                 warn "# header ", dump( @header );
  75                 while ( my $line = shift @lines ) {
  76                         $line =~ s/\^//g;
  77                         chomp $line;
  78                         my @v = split(/\|/, $line);
  79                         while ( @lines && $#v < $#header ) {
  80                                 $line = $lines[0];
  81                                 $line =~ s/\^//g;
  82                                 chomp $line;
  83                                 my @more_v = split(/\|/, $line);
  84                                 if ( $#v + $#more_v > $#header ) {
  85                                         warn "short line: ",dump( @v );
  86                                         last;
  87                                 }
  88                                 shift @lines;
  89                                 $v[ $#v ] .= shift @more_v if @more_v;
  90                                 push @v, @more_v if @more_v;
  91
  92                                 if ( $#v > $#header ) {
  93                                         die "# splice $#header ", dump( @v );
  94                                         @v = splice @v, 0, $#header;
  95                                 }
  96                         }
  97                         my $item;
  98                         foreach my $i ( 0 .. $#v ) {
  99                                 $item->{ $header[$i] || "f_$i" } = [ $v[$i] ];
 100                         }
 101                         push @{ $data->{items} }, $item;
 102                 }
 103         } else {
 104                 warn "file format unknown $path";
 105         }
 106
 107         my $stats;
 108
 109         foreach my $e ( @{ $data->{items} } ) {
 110                 foreach my $n ( keys %$e ) {
 111                         $stats->{$n}->{count}++;
 112                         my @v;
 113                         if ( ref $e->{$n} eq 'ARRAY' ) {
 114                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
 115                                 @v = @{ $e->{$n} };
 116                         } else {
 117                                 @v = ( $e->{$n} );
 118                         }
 119
 120                         foreach my $x ( @v ) {
 121                                 $stats->{$n}->{numeric}++
 122                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 123                                 $stats->{$n}->{empty}++
 124                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 125                         }
 126
 127                 }
 128         }
 129
 130         foreach my $n ( keys %$stats ) {
 131                 next unless defined $stats->{$n}->{array};
 132                 delete $stats->{$n}->{array}
 133                         if $stats->{$n}->{array} == $stats->{$n}->{count};
 134         }
 135
 136         if ( ! @header ) {
 137                 if ( defined $data->{header} ) {
 138                         if ( ref $data->{header} eq 'ARRAY' ) {
 139                                 @header = @{ $data->{header} };
 140                         } else {
 141                                 warn "header not array ", dump( $data->{header} );
 142                         }
 143                 }
 144         }
 145
 146         @header =
 147                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 148                 grep { defined $stats->{$_}->{count} } keys %$stats
 149                 unless @header;
 150
 151         warn dump($stats);
 152
 153         $loaded->{ $path } = {
 154                 header => [ @header ],
 155                 stats  => $stats,
 156                 full_path => $full_path,
 157                 size => -s $full_path,
 158                 mtime => (stat($full_path))[9],
 159                 data => $data,
 160         };
 161
 162 }
 163
 164
 165 sub load {
 166         my $self = shift;
 167
 168         my @paths = $self->param('paths');
 169         warn "# paths ", dump @paths;
 170         $self->_load_path( $_ ) foreach @paths;
 171
 172         my $path = $self->param('path') || $self->redirect_to( '/data/index' );
 173         warn "# path $path\n";
 174         $self->session('path' => $path);
 175         $self->_load_path( $path );
 176
 177         $self->session( 'header' => $loaded->{$path}->{header} );
 178         if ( ! defined $loaded->{$path}->{columns} ) {
 179                 $self->session( 'columns' => $loaded->{$path}->{header} );
 180                 $self->session( 'order'   => $loaded->{$path}->{header}->[0] );
 181                 $self->redirect_to( '/data/columns' );
 182         } else {
 183                 $self->session( 'columns' => $loaded->{$path}->{columns} );
 184                 $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 185                 $self->redirect_to( '/data/items' );
 186         }
 187 }
 188
 189
 190 sub _loaded {
 191         my ( $self, $name ) = @_;
 192         my $path = $self->session('path');
 193         if ( ! defined $loaded->{$path}->{$name} ) {
 194                 warn "$path $name doesn't exist in loaded ",dump( $loaded );
 195                 $self->redirect_to('/data/index');
 196         }
 197         return $loaded->{$path}->{$name};
 198 }
 199
 200
 201 sub _checked {
 202         my $self = shift;
 203         my $checked;
 204         $checked->{$_}++ foreach @_;
 205 #       warn "# _checked ",dump($checked);
 206         return $checked;
 207 }
 208
 209
 210 sub columns {
 211     my $self = shift;
 212
 213         if ( $self->param('columns') ) {
 214                 $self->_perm_array('columns');
 215                 $self->redirect_to('/data/items');
 216         }
 217
 218         my $stats = $self->_loaded( 'stats' ); # || $self->redirect_to( '/data/index' );
 219
 220         my @columns;
 221         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 222
 223         foreach my $c ( @{ $self->session( 'header' ) } ) {
 224                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 225         }
 226
 227     $self->render(
 228                 message => 'Select columns to display',
 229                 stats => $stats,
 230                 columns => \@columns,
 231                 checked => $self->_checked( $self->_perm_array('columns') ),
 232         );
 233 }
 234
 235 sub _perm_array {
 236     my ($self,$name) = @_;
 237
 238         my @array = $self->param($name);
 239         my $path  = $self->session('path');
 240
 241         if ( @array ) {
 242                 $self->session($name => [ @array ]);
 243                 $loaded->{$path}->{$name} = [ @array ];
 244         } elsif ( my $session = $self->session($name) ) {
 245                 if ( ref $session eq 'ARRAY' ) {
 246                         @array = @$session;
 247                 } else {
 248                         die "$name not array ",dump($session);
 249                 }
 250         }
 251         #warn "# $name ",dump @array;
 252         return @array;
 253 }
 254
 255 sub _perm_scalar {
 256     my ($self,$name,$default) = @_;
 257
 258         my $scalar = $self->param($name);
 259
 260         if ( defined $scalar ) {
 261                 $self->session($name => $scalar);
 262         } else {
 263                 $scalar = $self->session($name);
 264         }
 265
 266         if ( ! defined $scalar ) {
 267                 $scalar = $default;
 268                 die "no default for $name" unless defined $scalar;
 269                 $self->session($name => $scalar);
 270         }
 271
 272         warn "# _perm_scalar $name ",dump $scalar;
 273         return $scalar;
 274 }
 275
 276 sub filter {
 277         my $self = shift;
 278
 279         my $name = $self->param('filter_name') || die "name?";
 280         my @vals = $self->param('filter_vals');
 281
 282         $self->_remove_filter( $name );
 283         $self->_filter_on_data( $name, @vals ) if @vals;
 284
 285         $self->session( 'offset' => 0 );
 286
 287         $self->redirect_to('/data/items');
 288 }
 289
 290 sub _filter_on_data {
 291         my ( $self, $name, @vals ) = @_;
 292
 293         my $path = $self->session('path');
 294
 295         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 296                 warn "filter $name not found in data set";
 297                 return;
 298         }
 299
 300         $filters->{$name} = [ @vals ];
 301         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 302
 303         my $filter_hash;
 304         $filter_hash->{$_}++ foreach @vals;
 305
 306         #warn "# filter_hash ",dump( $filter_hash );
 307
 308         my $items = $self->_loaded('data')->{items};
 309
 310         my $include_missing = defined $filter_hash->{_missing};
 311         my $filtered_items;
 312
 313         foreach my $i ( 0 .. $#$items ) {
 314
 315                 if ( defined $items->[$i]->{$name} ) {
 316                         foreach my $v ( @{ $items->[$i]->{$name} } ) {
 317                                 if ( defined $filter_hash->{ $v } ) {
 318                                         $filtered_items->{$i}++;
 319                                 }
 320                         }
 321                 } elsif ( $include_missing ) {
 322                         $filtered_items->{$i}++;
 323                 }
 324         }
 325
 326         #warn "# filter $name ",dump($filtered_items);
 327
 328         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 329         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 330 }
 331
 332 sub _data_items {
 333         my ( $self, $all ) = @_;
 334         my $data = $self->_loaded( 'data' );
 335
 336         return @{ $data->{items} } if $all == 1;
 337
 338         my $filters = $self->_current_filters;
 339         my $filter_value;
 340         foreach my $f ( keys %$filters ) {
 341                 foreach my $n ( @{ $filters->{$f} } ) {
 342                         $filter_value->{$f}->{$n} = 1;
 343                 }
 344         }
 345         my @items = @{ $data->{items} };
 346         @items = grep {
 347                 my $i = $_;
 348                 my $pass = 1;
 349                 foreach my $n ( keys %$filter_value ) {
 350                         if ( ! exists $i->{$n} ) {
 351                                 if ( defined $filter_value->{$n}->{_missing} ) {
 352                                         $pass = 1;
 353                                         next;
 354                                 } else {
 355                                         $pass = 0;
 356                                         last;
 357                                 }
 358                         }
 359                         # and match any of values in element
 360                         my $have_values = 0;
 361                         foreach my $v ( @{ $i->{$n} } ) { # FIXME not array?
 362                                 $have_values ||= 1 if defined $filter_value->{$n}->{$v};
 363                         }
 364                         if ( ! $have_values ) {
 365                                 $pass = 0;
 366                                 last;
 367                         }
 368                 }
 369                 $pass;
 370         } @items if $filter_value;
 371         return @items;
 372 }
 373
 374
 375 sub _current_filters {
 376         my $self = shift;
 377         my $current_filters;
 378         $current_filters->{ $_ } = $filters->{ $_ }
 379                 foreach (
 380                         grep { defined $filters->{ $_ } }
 381                         @{ $self->_loaded('header') }
 382                 );
 383         #warn "# current_filters ",dump($current_filters);
 384         return $current_filters;
 385 }
 386
 387 sub _data_sorted_by {
 388         my ( $self, $order ) = @_;
 389
 390         my $path = $self->session('path');
 391
 392         warn "_data_sorted_by $order from $path";
 393
 394         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 395                 return $loaded->{$path}->{sorted}->{$order};
 396         }
 397
 398         my $data = $self->_loaded( 'data' );
 399         my $numeric = $self->_is_numeric($order);
 400         my $missing = $numeric ? 0 : '';
 401         no warnings qw(numeric);
 402         my $nr = 0;
 403         my @sorted = map {
 404                 $_->[0]
 405         } sort {
 406                 if ( $numeric ) {
 407                         $a->[1] <=> $b->[1]
 408                 } else {
 409                         $a->[1] cmp $b->[1]
 410                 }
 411         } map {
 412                 [ $nr++, exists $_->{$order} ? join('', @{$_->{$order}}) : $missing ]
 413         } @{ $data->{items} }
 414         ;
 415
 416         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 417         #warn "# sorted ",dump( @sorted );
 418
 419         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 420 }
 421
 422
 423 sub items {
 424         my $self = shift;
 425
 426         my $path = $self->session('path');
 427         $self->redirect_to('/data/index') unless defined $loaded->{ $path };
 428
 429         my @columns = $self->_perm_array('columns');
 430         $self->redirect_to('/data/columns') unless @columns;
 431         my $order   = $self->_perm_scalar('order', $columns[0]);
 432         my $sort    = $self->_perm_scalar('sort', 'a');
 433         my $offset  = $self->_perm_scalar('offset', 0);
 434         my $limit   = $self->_perm_scalar('limit', 20);
 435         $self->_perm_scalar('show', 'table');
 436
 437         # fix offset when changing limit
 438         $offset = int( $offset / $limit ) * $limit;
 439
 440         my $sorted = $self->_data_sorted_by( $order );
 441
 442         my @filter_names;
 443         if ( $filters ) {
 444                 foreach my $name ( keys %$filters ) {
 445                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 446                                 warn "skip filter $name not found in $path\n";
 447                                 next;
 448                         }
 449                         push @filter_names, $name;
 450                 }
 451                 warn "filter_names ",dump( @filter_names );
 452                 foreach my $name ( @filter_names ) {
 453                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 454                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 455                 }
 456         }
 457
 458         my $all_filters = join(' ',sort @filter_names,'order:',$order);
 459
 460 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 461
 462         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 463
 464                 my $path_filters = $loaded->{$path}->{filters};
 465
 466                 warn "create combined filter for $all_filters\n";
 467
 468                 my @filtered;
 469                 foreach my $i ( 0 .. $#$sorted ) {
 470                         my $pos = $sorted->[$i];
 471
 472                         if ( $#filter_names == -1 ) {
 473                                 push @filtered, $pos;
 474                                 next;
 475                         }
 476
 477                         my $skip = 0;
 478                         foreach ( @filter_names ) {
 479                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 480                         }
 481                         next if $skip;
 482
 483                         push @filtered, $pos;
 484                 }
 485
 486                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 487         }
 488
 489         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 490                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 491
 492         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 493
 494         my $sorted_items;
 495         my $data = $self->_loaded('data');
 496         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 497         foreach ( 0 .. $limit ) {
 498                 my $i = $_ + $offset;
 499                 last unless defined $filtered->[$i];
 500                 $i = $from_end - $i if $from_end;
 501                 push @$sorted_items, $data->{items}->[ $filtered->[$i] ];
 502         }
 503
 504         warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 505
 506         $self->render(
 507                 order => $order,
 508                 offset => $offset,
 509                 limit => $limit,
 510                 sorted => $sorted_items,
 511                 columns => [ @columns ],
 512                 rows => $#$filtered + 1,
 513                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
 514                 filters => $self->_current_filters,
 515         );
 516
 517 }
 518
 519
 520 sub order {
 521         my $self = shift;
 522         $self->session('order', $self->param('order'));
 523         $self->session('sort', $self->param('sort'));
 524         $self->redirect_to('/data/items');
 525 }
 526
 527 sub _is_numeric {
 528         my ( $self, $name ) = @_;
 529
 530         my $stats = $self->_loaded( 'stats' );
 531
 532         # sort facet numerically if more >50% elements are numeric
 533         my $count = $stats->{$name}->{count};
 534         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
 535         defined $stats->{$name}->{numeric} &&
 536                 $stats->{$name}->{numeric} > $count / 2;
 537 }
 538
 539 sub _remove_filter {
 540         my ($self,$name) = @_;
 541         warn "_remove_filter $name\n";
 542
 543         my $path = $self->session('path');
 544
 545         delete $filters->{$name};
 546         delete $loaded->{$path}->{filters}->{$name};
 547         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
 548
 549         foreach (
 550                         grep { /\b$name\b/ }
 551                         keys %{ $loaded->{$path}->{filtered} }
 552         ) {
 553                 delete $loaded->{$path}->{filtered}->{$_};
 554                 warn "remove filtered cache $_";
 555         }
 556 }
 557
 558 sub facet {
 559         my $self = shift;
 560
 561         my $path = $self->session('path') || $self->redirect_to( '/data/index' );
 562
 563         if ( my $name = $self->param('remove') ) {
 564                 $self->_remove_filter( $name );
 565                 $self->redirect_to( '/data/items' );
 566         }
 567
 568         my $facet;
 569         my $name = $self->param('name') || die "no name";
 570
 571         my $all = $self->_perm_scalar('all', 1);
 572         my $data = $self->_loaded('data');
 573
 574         my $filters = $self->_current_filters;
 575         my $all_filters = join(' ',sort keys %$filters,'order:',$self->session('order'));
 576         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 577                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 578
 579         if ( ! $filtered || $all ) {
 580                 $filtered = [ 0 .. $#{ $data->{items} } ];
 581                 warn "filter all values\n";
 582         } else {
 583                 warn "filter using $all_filters\n";
 584         }
 585
 586         foreach my $i ( @$filtered ) {
 587                 my $item = $data->{items}->[$i];
 588                 if ( ! exists $item->{$name} ) {
 589                         $facet->{ _missing }++;
 590                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
 591                         $facet->{$_}++ foreach @{ $item->{$name} };
 592                 } else {
 593                         $facet->{ $item->{$name} }++;
 594                 }
 595         }
 596
 597 #       warn "# facet $name ",dump $facet;
 598
 599         my $checked;
 600         my @facet_names =
 601                   $all                      ? keys %$facet
 602                 : defined $filters->{$name} ? @{ $filters->{$name} }
 603                 : keys %$facet;
 604
 605         $checked = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
 606
 607         my $numeric = $self->_is_numeric($name);
 608
 609         my $sort = $self->param('sort');
 610         # sort numeric facets with more than 5 values ascending
 611         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
 612
 613         @facet_names = sort {
 614                 my $result;
 615                 if ( $sort eq 'a' ) {
 616                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
 617                 } elsif ( $sort eq 'd' ) {
 618                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
 619                 } elsif ( $sort eq 'c' ) {
 620                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
 621                 } else {
 622                         warn "unknown sort: $sort";
 623                         $result = $a cmp $b;
 624                 }
 625                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
 626                 $result;
 627         } @facet_names;
 628
 629         $self->render( name => $name, facet => $facet, checked => $checked,
 630                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
 631         );
 632 }
 633
 634 sub edit {
 635         my $self = shift;
 636         my $content = $self->param('content');
 637
 638         $self->render(
 639                 content => $content
 640         );
 641 }
 642
 643 1;