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