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); # broken with Mojo::JSON, see https://rt.cpan.org/Public/Bug/Display.html?id=86592
   9 use Data::Dumper;
  10 use subs 'dump';
  11 sub dump { Dumper(@_) };
  12
  13 use File::Slurp;
  14 use Encode;
  15 use locale;
  16 use File::Find;
  17 use Storable;
  18 use Time::HiRes qw(time);
  19 use File::Path qw(mkpath);
  20 use Text::Unaccent::PurePerl;
  21 use Digest::MD5;
  22 use Statistics::Descriptive;
  23
  24 our $imports;
  25 foreach my $module ( glob('lib/MojoFacets/Import/*.pm') ) {
  26         $module =~ s{lib/(\w+)/(\w+)/(.*)\.pm}{$1::$2::$3};
  27         eval "use $module";
  28         die "$module: $!" if $!;
  29         my ( $ext, $priority ) = $module->ext;
  30         $imports->{$priority || 'file'}->{$ext} = $module;
  31         warn "# import $ext $module\n";
  32 }
  33
  34 warn "# import loaded ",dump( $imports );
  35
  36 sub import_module {
  37         my $full_path = shift;
  38
  39 #       warn "# import_module $full_path\n";
  40
  41         return if $full_path =~ m/\.columns$/;
  42
  43         foreach my $ext ( keys %{ $imports->{file} } ) {
  44                 if ( -f $full_path && $full_path =~ m/$ext/i ) {
  45                         return $imports->{file}->{$ext};
  46                         last;
  47                 }
  48         }
  49
  50         foreach my $ext ( keys %{ $imports->{directory} } ) {
  51                 if ( -f $full_path && $full_path =~ m/$ext/i ) {
  52                         return $imports->{directory}->{$ext};
  53                         last;
  54                 }
  55         }
  56 }
  57
  58 our $loaded;
  59 our $filters;
  60
  61 sub index {
  62         my $self = shift;
  63
  64         my $data_dir = $self->app->home->rel_file('data');
  65         die "no data dir $data_dir" unless -d $data_dir;
  66
  67         my @files;
  68         my $changes;
  69
  70         find( sub {
  71                 my $file = $File::Find::name;
  72
  73                 next if $file =~ m/.timefmt$/;
  74
  75                 if ( -f $file && $file =~ m/([^\/]+)\.changes\/(\d+[\.,]\d+.+)/ ) {
  76                         push @{ $changes->{$1} }, $2
  77                 } elsif ( import_module( $file ) ) {
  78                         my $mtime = (stat($file))[9]; # mtime
  79                         $file =~ s/$data_dir\/*//;
  80                         push @files, $file;
  81                         $loaded->{$file}->{mtime} ||= $mtime;
  82                 } else {
  83                         #warn "IGNORE: $file\n";
  84                 }
  85         }, $data_dir);
  86
  87         no warnings qw(uninitialized); # mtime
  88         @files = sort { $loaded->{$b}->{mtime} <=> $loaded->{$a}->{mtime} || lc $a cmp lc $b } @files,
  89                         grep { defined $loaded->{$_}->{generated} } keys %$loaded;
  90
  91         my $size;
  92         $size->{$_} = -s "$data_dir/$_" foreach @files;
  93
  94         $self->render(
  95                 files => [ @files ],
  96                 size => $size,
  97                 loaded => $loaded,
  98                 filters => $filters,
  99                 dump_path => { map { $_ => $self->_dump_path($_) } @files },
 100                 changes => $changes,
 101         );
 102 }
 103
 104 sub _dump_path {
 105         my ( $self, $name ) = @_;
 106         my $dir = $self->app->home->rel_file('data');
 107         $name =~ s/^$dir//;
 108         $name =~ s/\/+/_/g;
 109         return '/tmp/mojo_facets.' . $name . '.storable';
 110 }
 111
 112 sub _save {
 113         my ( $self, $path ) = @_;
 114
 115         my $dump_path = $self->_dump_path( $path );
 116         my $first_load = ! -e $dump_path;
 117         warn "save loaded to $dump_path";
 118         my $info = $loaded->{$path};
 119         store $info, $dump_path;
 120
 121         if ( $first_load ) {
 122                 my $mtime = $loaded->{$path}->{mtime};
 123                 utime $mtime, $mtime, $dump_path;
 124                 warn "sync time to $path at $mtime\n";
 125         }
 126
 127         warn $dump_path, ' ', -s $dump_path, " bytes\n";
 128         return $dump_path;
 129 }
 130
 131
 132 sub __stats {
 133
 134         my $stats;
 135
 136         my $nr_items = $#{ $_[0] } + 1;
 137
 138         warn "__stats $nr_items\n";
 139
 140 #       foreach my $e ( @{ $_[0] } ) {
 141         foreach my $i ( 0 .. $#{$_[0]} ) {
 142                 print STDERR " $i" if $i % 5000;
 143                 my $e = $_[0]->[$i];
 144                 foreach my $n ( keys %$e ) {
 145                         $stats->{$n}->{count}++;
 146                         my @v;
 147                         if ( ref $e->{$n} eq 'ARRAY' ) {
 148                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
 149                                 @v = @{ $e->{$n} };
 150                         } else {
 151                                 @v = ( $e->{$n} );
 152                         }
 153
 154                         foreach my $x ( @v ) {
 155                                 if ( ! defined $x ) { # FIXME really null
 156                                         $stats->{$n}->{empty}++;
 157                                         next;
 158                                 }
 159
 160                                 $stats->{$n}->{numeric}++
 161                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 162                                 $stats->{$n}->{empty}++
 163                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 164                         }
 165
 166                 }
 167         }
 168
 169         foreach my $n ( keys %$stats ) {
 170                 my $s = $stats->{$n};
 171                 next unless defined $s->{array};
 172                 if ( $s->{array} == $s->{count} ) {
 173                         delete $s->{array};
 174                         if ( $s->{count} == $nr_items ) {
 175                                 warn "check $n for uniqeness\n";
 176                                 my $unique;
 177                                 foreach my $e ( @{ $_[0] } ) {
 178                                         if ( ++$unique->{ $e->{$n}->[0] } == 2 ) {
 179                                                 $unique = 0;
 180                                                 last;
 181                                         }
 182                                 }
 183                                 if ( $unique ) {
 184                                         $stats->{$n}->{unique} = 1;
 185                                         #warn "# $n unique ",dump( $unique );
 186                                 }
 187                         }
 188                 }
 189         }
 190
 191         warn "# __stats ",dump($stats);
 192
 193         return $stats;
 194 }
 195
 196 sub _param_or_session {
 197         $_[0]->param( $_[1] ) || $_[0]->session( $_[1] )
 198 }
 199
 200 sub stats {
 201         my $self = shift;
 202         my $path = $self->_param_or_session('path');
 203         warn "stats $path\n";
 204         delete $loaded->{$path}->{stats};
 205         return $self->redirect_to( '/data/columns' );
 206 }
 207
 208
 209 sub _load_path {
 210         my ( $self, $path ) = @_;
 211
 212         return if defined $loaded->{$path}->{generated};
 213
 214         my $full_path = $self->app->home->rel_file( 'data/' . $path );
 215         return $self->redirect_to('/data/index') unless -r $full_path;
 216
 217         my $dump_path = $self->_dump_path( $path );
 218
 219         if ( defined $loaded->{$path}->{data} ) {
 220                 my $mtime = (stat($full_path))[9];
 221                 return if $loaded->{$path}->{mtime} == $mtime;
 222                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
 223         } elsif ( -e $dump_path ) {
 224                 warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
 225                 my $info = retrieve $dump_path;
 226                 $loaded->{ $path } = $info;
 227                 return;
 228         }
 229
 230         my $data;
 231         if ( my $module = import_module( $full_path ) ) {
 232                 $data = $module->new( full_path => $full_path )->data;
 233         } else {
 234                 die "can't load $full_path";
 235         }
 236
 237         my @header;
 238
 239         if ( defined $data->{header} ) {
 240                 if ( ref $data->{header} eq 'ARRAY' ) {
 241                         @header = @{ $data->{header} };
 242                 } else {
 243                         warn "header not array ", dump( $data->{header} );
 244                 }
 245         }
 246
 247         my $stats = __stats( $data->{items} );
 248
 249         @header =
 250                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 251                 grep { defined $stats->{$_}->{count} } keys %$stats
 252                 unless @header;
 253
 254         my $info = {
 255                 header => [ @header ],
 256                 stats  => $stats,
 257                 full_path => $full_path,
 258                 size => -s $full_path,
 259                 mtime => (stat($full_path))[9],
 260                 data => $data,
 261                 defined $data->{generated} ? ( generated => 1 ) : (),
 262         };
 263
 264         $loaded->{ $path } = $info;
 265         $self->_save( $path ) unless $info->{generated};
 266
 267
 268 }
 269
 270
 271 sub load {
 272         my $self = shift;
 273
 274         my @paths = @{ $self->every_param('paths') };
 275         warn "# paths ", dump @paths;
 276
 277         foreach my $p ( keys %$loaded ) {
 278                 next if grep { /^\Q$p\E$/ } @paths;
 279                 warn "remove $p from memory\n";
 280                 delete $loaded->{$p};
 281         }
 282
 283         $self->_load_path( $_ ) foreach @paths;
 284
 285         my $path = $self->param('path') || $self->session('path') || $paths[0] || $self->redirect_to('/data/index');
 286
 287         warn "# path $path\n";
 288         $self->_load_path( $path );
 289
 290         $self->session( 'path' => $path );
 291
 292         my $timefmt_path = $self->_permanent_path( 'timefmt' );
 293         if ( -e $timefmt_path ) {
 294                 my $timefmt = read_file $timefmt_path;
 295                 $self->session( 'timefmt', $timefmt );
 296                 warn "timefmt = ", $timefmt;
 297         }
 298
 299         my $redirect_to = '/data/items';
 300
 301         $self->session( 'header' => $loaded->{$path}->{header} );
 302         if ( ! defined $loaded->{$path}->{columns} ) {
 303                 my $columns_path = $self->_permanent_path( 'columns' );
 304                 if ( -e $columns_path ) {
 305                         my @columns = map { s/[\r\n]+$//; $_ } read_file $columns_path, binmode => ':utf8';
 306                         $loaded->{$path}->{columns} = [ @columns ];
 307                         warn "# columns_path $columns_path ",dump(@columns);
 308                 } else {
 309                         $loaded->{$path}->{columns} = $loaded->{$path}->{header}
 310                 }
 311
 312                 $redirect_to = '/data/columns';
 313         }
 314         $self->session( 'columns' => $loaded->{$path}->{columns} );
 315         $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 316         return $self->redirect_to( $redirect_to );
 317 }
 318
 319
 320 sub _loaded {
 321         my ( $self, $name ) = @_;
 322         my $path = $self->session('path') || $self->param('path');
 323         return $self->redirect_to('/data/index') unless $path;
 324
 325         if ( defined $loaded->{$path}->{modified} && $loaded->{$path}->{modified} > 1 ) {
 326                 my $caller = (caller(1))[3];
 327                 if ( $caller =~ m/::edit/ ) {
 328                         warn "rebuild stats for $path ignored caller $caller\n";
 329                 } else {
 330                         warn "rebuild stats for $path FORCED by modified caller $caller\n";
 331 #                       $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 332                         $loaded->{$path}->{rebuild_stats} = 1;
 333                         $loaded->{$path}->{modified} = 1;
 334                 }
 335         }
 336
 337         if ( defined $loaded->{$path}->{rebuild_stats} ) {
 338                 warn "rebuild_stats $path";
 339                 $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 340                 delete $loaded->{$path}->{rebuild_stats};
 341         }
 342
 343         if ( ! defined $loaded->{$path}->{$name} ) {
 344                 warn "$path $name isn't loaded\n";
 345                 $self->_load_path( $path );
 346                 if ( ! defined $loaded->{$path}->{stats} ) {
 347                         warn "rebuild stats for $path\n";
 348                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 349                 }
 350                 if ( ! defined $loaded->{$path}->{$name} ) {
 351                         warn "MISSING $name for $path\n";
 352                         return $self->redirect_to('/data/index')
 353                 }
 354         }
 355
 356         $self->session( 'modified' => $loaded->{$path}->{modified} );
 357
 358         return $loaded->{$path}->{$name};
 359 }
 360
 361
 362 sub _checked {
 363         my $self = shift;
 364         my $checked;
 365         $checked->{$_}++ foreach @_;
 366 #       warn "# _checked ",dump($checked);
 367         return $checked;
 368 }
 369
 370 sub _permanent_path {
 371         my $self = shift;
 372         my $path = $self->_param_or_session('path');
 373         $self->app->home->rel_file('data') . '/' . join('.', $path, @_);
 374 }
 375
 376 sub __unac {
 377         my $n = shift;
 378         $n = unac_string('utf-8',$n);
 379         $n =~ s/\W+/_/g;
 380         return $n;
 381 }
 382
 383 sub _column_from_unac {
 384         my ($self,$name) = @_;
 385
 386         my $stats = $self->_loaded('stats');
 387         my $cols_norm = { map { __unac( $_ ) => $_ } keys %$stats };
 388
 389         $cols_norm->{$name} || die "can't find column $name in ", dump($cols_norm);
 390 }
 391
 392 sub _export_path {
 393         my $self = shift;
 394         my $path = $self->_param_or_session('path');
 395         if ( ! $path ) {
 396                 warn "no path in param or session";
 397                 return;
 398         }
 399         my $dir = $self->app->home->rel_file('public') . "/export/$path";
 400         mkpath $dir unless -e $dir;
 401         my $name = __export_path_name( $path, @_ );
 402         my $full = $dir . '/' . $name;
 403         $full =~ s/\/+$// if -d $full; # strip trailing slash for dirs
 404         return $full;
 405 }
 406
 407 sub __export_path_name {
 408         my $max_length = 80;
 409
 410         my $path = shift;
 411         my $name = join('.', map { __unac($_) } @_ );
 412         if ( length($name) > $max_length ) {
 413                 $name = substr($name,0,$max_length) . Digest::MD5::md5_hex substr($name,$max_length);
 414         }
 415         return $name;
 416 }
 417
 418 sub columns {
 419     my $self = shift;
 420
 421         my $view_path = $self->_permanent_path( 'views' );
 422
 423         if ( $self->param('columns') ) {
 424                 my @columns = $self->_param_array('columns');
 425                 write_file( $self->_permanent_path( 'columns' ), { binmode => ':utf8' }, map { "$_\n" } @columns );
 426                 if ( my $view = $self->param('view') ) {
 427                         mkdir $view_path unless -e $view_path;
 428                         write_file( "$view_path/$view", { binmode => ':utf8' }, map { "$_\n" } @columns );
 429                         warn "view $view_path/$view ", -s "$view_path/$view", " bytes\n";
 430                 }
 431
 432                 return $self->redirect_to('/data/items');
 433
 434         } elsif ( ! $self->session('header') ) {
 435                 return $self->redirect_to('/');
 436                 return $self->redirect_to('/data/load');
 437         }
 438
 439         if ( my $id = $self->param('id') ) {
 440                 my $view_full = "$view_path/$id";
 441                 if ( -f $view_full ) {
 442                         my @columns = map { chomp; $_ } read_file $view_full, binmode => ':utf8';
 443                         warn "view $view_full loaded ", dump @columns;
 444                         $self->session( 'columns' => [ @columns ] );
 445                         return $self->redirect_to('/data/items');
 446                 }
 447         }
 448
 449         my $stats = $self->_loaded( 'stats' );
 450
 451         my @columns;
 452         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 453
 454         foreach my $c ( @{ $self->session( 'header' ) } ) {
 455                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 456         }
 457
 458         my @views;
 459         if ( -d $view_path ) {
 460                 @views = map { s{^\Q$view_path\E/*}{}; $_ } glob "$view_path/*";
 461                 warn "# views ",dump @views;
 462         }
 463
 464     $self->render(
 465                 message => 'Select columns to display',
 466                 stats => $stats,
 467                 columns => \@columns,
 468                 checked => $self->_checked( $self->_param_array('columns') ),
 469                 views => \@views,
 470         );
 471 }
 472
 473 sub _param_array {
 474     my ($self,$name) = @_;
 475
 476         my @array = @{ $self->every_param($name) };
 477         my $path  = $self->session('path');
 478
 479         if ( @array ) {
 480                 $self->session($name => [ @array ]);
 481                 $loaded->{$path}->{$name} = [ @array ];
 482         } elsif ( my $session = $self->session($name) ) {
 483                 if ( ref $session eq 'ARRAY' ) {
 484                         @array = @$session;
 485                 } else {
 486                         die "$name not array ",dump($session);
 487                 }
 488         }
 489         #warn "# $name ",dump @array;
 490         return @array;
 491 }
 492
 493 sub _param_scalar {
 494     my ($self,$name,$default) = @_;
 495
 496         my $scalar = $self->param($name);
 497
 498         if ( defined $scalar ) {
 499                 $self->session($name => $scalar);
 500         } else {
 501                 $scalar = $self->session($name);
 502         }
 503
 504         if ( ! defined $scalar ) {
 505                 $scalar = $default;
 506                 if ( defined $scalar ) {
 507                         $self->session($name => $scalar);
 508                 } else {
 509                         warn "no default for $name";
 510                 }
 511         }
 512
 513         warn "# _param_scalar $name ",dump $scalar;
 514         return $scalar;
 515 }
 516
 517 sub filter {
 518         my $self = shift;
 519
 520         my $name = $self->param('filter_name') || die "name?";
 521         my @vals = @{ $self->every_param('filter_vals') };
 522
 523         $self->_remove_filter( $name );
 524         if ( @vals ) {
 525                 $self->_filter_on_data( $name, @vals );
 526                 if ( my $permanent = $self->param('_permanent') ) {
 527                         my $permanent_path = $self->_export_path( 'filter', $name, $permanent );
 528                         write_file $permanent_path, { binmode => ':utf8' }, map { "$_\n" } @vals;
 529                         warn "permanent filter $permanent_path ", -s $permanent_path;
 530                 }
 531         }
 532
 533         $self->session( 'offset' => 0 );
 534
 535         return $self->redirect_to('/data/items');
 536 }
 537
 538 sub _filter_on_data {
 539         my ( $self, $name, @vals ) = @_;
 540
 541         my $path = $self->session('path');
 542
 543         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 544                 warn "filter $name not found in data set";
 545                 return;
 546         }
 547
 548         $filters->{$name} = [ @vals ];
 549         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 550
 551         my $filter_hash;
 552         $filter_hash->{$_}++ foreach @vals;
 553
 554         #warn "# filter_hash ",dump( $filter_hash );
 555
 556         my $items = $self->_loaded('data')->{items};
 557
 558         my $include_missing = defined $filter_hash->{_missing};
 559         my $filtered_items;
 560
 561         foreach my $i ( 0 .. $#$items ) {
 562
 563                 if ( defined $items->[$i]->{$name} ) {
 564                         my $row = $items->[$i]->{$name};
 565                         $row = [ $row ] unless ref $row eq 'ARRAY'; # FIXME probably wrong place
 566                         foreach my $v ( @$row ) {
 567                                 if ( defined $filter_hash->{ $v } ) {
 568                                         $filtered_items->{$i}++;
 569                                 }
 570                         }
 571                 } elsif ( $include_missing ) {
 572                         $filtered_items->{$i}++;
 573                 }
 574         }
 575
 576         #warn "# filter $name ",dump($filtered_items);
 577
 578         # invalidate filters on other datasets
 579         foreach my $dataset ( grep { exists $loaded->{$_}->{filters}->{$name} } keys %$loaded ) {
 580                 delete $loaded->{$dataset}->{filters}->{$name};
 581                 delete $loaded->{$dataset}->{filtered};
 582         }
 583
 584         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 585         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 586 }
 587
 588
 589 sub _current_filters {
 590         my $self = shift;
 591         my $current_filters;
 592         my $stats = $self->_loaded('stats');
 593
 594         $current_filters->{ $_ } = $filters->{ $_ }
 595                 foreach ( grep { defined $filters->{ $_ } } keys %$stats )
 596         ;
 597         warn "# _current_filters ",dump( keys %$current_filters );
 598         return $current_filters;
 599 }
 600
 601 sub _data_sorted_by {
 602         my ( $self, $order ) = @_;
 603
 604         my $path = $self->session('path');
 605
 606         warn "_data_sorted_by $order from $path";
 607
 608         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 609                 return $loaded->{$path}->{sorted}->{$order};
 610         }
 611
 612         my $data = $self->_loaded( 'data' );
 613         my $numeric = $self->_is_numeric($order);
 614         my $missing = $numeric ? 0 : '';
 615         no warnings qw(numeric);
 616         my $nr = 0;
 617         my @sorted = map {
 618                 $_->[0]
 619         } sort {
 620                 if ( $numeric ) {
 621                         $a->[1] <=> $b->[1]
 622                 } else {
 623                         $a->[1] cmp $b->[1]
 624                 }
 625         } map {
 626                 my $v;
 627                 if ( ! exists $_->{$order} ) {
 628                         $v = $missing;
 629                 } elsif ( ref $_->{$order} eq 'ARRAY' ) {
 630                         $v = join('', @{$_->{$order}});
 631                 } else {
 632                         $v = $_->{$order};
 633                 }
 634                 [ $nr++, $v ]
 635         } @{ $data->{items} }
 636         ;
 637
 638         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 639         #warn "# sorted ",dump( @sorted );
 640
 641         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 642 }
 643
 644
 645 sub __all_filters {
 646         my $order = pop @_;
 647         join(',', sort(@_), 'order', $order);
 648 }
 649
 650 our ($out, $key,$value);
 651
 652 our $lookup_path_col;
 653 our $on;
 654
 655 sub __commit_begin {
 656         warn "__commit_begin";
 657         $lookup_path_col = undef;
 658         $on = undef;
 659 }
 660
 661 sub __commit_end {
 662         warn "__commit_end";
 663         $lookup_path_col = undef; # cleanup memory
 664         $on = undef;
 665 }
 666
 667 sub lookup {
 668         warn "# lookup ",dump @_;
 669         my ( $vals, $on_path, $on_col, $code, $stat_code ) = @_;
 670         die "code is not sub{ ... } but ", dump $code unless ref $code eq 'CODE';
 671
 672         if ( ! exists $loaded->{$on_path} ) {
 673                 my @possible_paths = grep { /\Q$on_path\E/ } keys %$loaded;
 674                 die "more than one dataset available for '$on_path' ",dump @possible_paths if $#possible_paths > 0;
 675                 $on_path = shift @possible_paths;
 676                 warn "## fuzzy selected path $on_path";
 677         }
 678
 679         my $items = $loaded->{$on_path}->{data}->{items} || die "no items for $on_path";
 680
 681         if ( ! exists $lookup_path_col->{$on_path}->{$on_col} ) {
 682                 warn "create lookup_path_col $on_path $on_col";
 683                 foreach my $i ( 0 .. $#$items ) {
 684                         my $item = $items->[$i];
 685                         if ( exists $item->{$on_col} ) {
 686                                 if ( ref $item->{$on_col} eq 'ARRAY' ) {
 687                                         foreach my $v ( @{ $item->{$on_col} } ) {
 688                                                 push @{ $lookup_path_col->{$on_path}->{$on_col}->{$v} }, $i;
 689                                         }
 690                                 } elsif ( ! ref $item->{$on_col} ) { # scalar
 691                                         my $v = $item->{$on_col};
 692                                         push @{ $lookup_path_col->{$on_path}->{$on_col}->{$v} }, $i;
 693                                 } else {
 694                                         die "unknown type of ",dump $item->{$on_col};
 695                                 }
 696                         }
 697                 }
 698                 warn "XXX ",dump $lookup_path_col->{$on_path}->{$on_col} if $ENV{DEBUG};
 699         }
 700
 701         my $stat;
 702         $stat = Statistics::Descriptive::Full->new() if $stat_code;
 703
 704         foreach my $v ( ref $vals eq 'ARRAY' ? @$vals : ( $vals ) ) {
 705                 foreach my $i ( @{ $lookup_path_col->{$on_path}->{$on_col}->{$v} } ) {
 706                         $on = $items->[$i];
 707                         warn "XXX lookup code $v $i ",dump $on if $ENV{DEBUG};
 708                         $code->($stat);
 709                 }
 710                 $stat_code->( $stat ) if $stat_code;
 711         }
 712 }
 713
 714 sub __commit_path_code {
 715         my ( $path, $i, $code, $commit_changed ) = @_;
 716
 717         my $items = $loaded->{$path}->{data}->{items} || die "no items for $path";
 718         my $row = $items->[$i];
 719         my $update;
 720         eval $code;
 721         foreach ( keys %$update ) {
 722                 $$commit_changed->{$_}++;
 723                 $loaded->{$path}->{data}->{items}->[$i]->{$_} = $update->{$_};
 724         }
 725         #warn "__commit_path_code $path $i ",dump( $update );
 726 }
 727
 728 # uses templates/admin.html.ep
 729 sub _switch_dataset {
 730         my $self = shift;
 731
 732         my $datasets;
 733
 734         foreach my $path ( keys %$loaded ) {
 735                 next unless exists $loaded->{$path}->{data};
 736                 push @$datasets, $path;
 737         }
 738
 739         warn "# datasets ",dump($datasets);
 740
 741         $self->stash( 'datasets' => $datasets );
 742 }
 743
 744 sub items {
 745         my $self = shift;
 746
 747         $self->_switch_dataset;
 748
 749         if ( my $timefmt = $self->param('timefmt') ) {
 750                 $self->session('timefmt', $timefmt);
 751                 warn "session store timefmt $timefmt\n";
 752                 my $timefmt_path = $self->_permanent_path( 'timefmt' );
 753                 write_file $timefmt_path, $timefmt;
 754                 warn "## $timefmt_path $timefmt"
 755         }
 756
 757         if ( my $show = $self->param('id') ) {
 758                 $self->param('show', $show);
 759                 warn "show $show\n";
 760         }
 761
 762         my $path = $self->_param_scalar('path');
 763
 764         my @columns = $self->_param_array('columns');
 765         return $self->redirect_to('/data/columns') unless @columns;
 766         my $order   = $self->_param_scalar('order', $columns[0]);
 767         my $sort    = $self->_param_scalar('sort', 'a');
 768         my $offset  = $self->_param_scalar('offset', 0);
 769         my $limit   = $self->_param_scalar('limit', 20);
 770         $self->_param_scalar('show', 'table');
 771
 772         # fix offset when changing limit
 773         $offset = int( $offset / $limit ) * $limit;
 774
 775         if ( ! grep { /^\Q$order\E$/ } @columns ) {
 776                 $order = $columns[0];
 777                 $self->session( order => $order );
 778         }
 779         my $sorted = $self->_data_sorted_by( $order );
 780
 781         my @filter_names;
 782         if ( $filters ) {
 783                 foreach my $name ( keys %$filters ) {
 784                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 785                                 warn "skip filter $name not found in $path\n";
 786                                 next;
 787                         }
 788                         push @filter_names, $name;
 789                 }
 790                 warn "filter_names ",dump( @filter_names );
 791                 foreach my $name ( @filter_names ) {
 792                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 793                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 794                 }
 795         }
 796
 797         my $all_filters = __all_filters( @filter_names,$order );
 798
 799 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 800
 801         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 802
 803                 my $path_filters = $loaded->{$path}->{filters};
 804
 805                 warn "create combined filter for $all_filters from ", $#$sorted + 1, " items\n";
 806
 807                 my @filtered;
 808                 foreach my $i ( 0 .. $#$sorted ) {
 809                         my $pos = $sorted->[$i];
 810
 811                         if ( $#filter_names == -1 ) {
 812                                 push @filtered, $pos;
 813                                 next;
 814                         }
 815
 816                         my $skip = 0;
 817                         foreach ( @filter_names ) {
 818                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 819                         }
 820                         next if $skip;
 821
 822                         push @filtered, $pos;
 823                 }
 824
 825                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 826         }
 827
 828         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 829                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 830
 831         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 832
 833         my $data = $self->_loaded('data');
 834
 835         my $code = $self->_param_scalar('code','');
 836         $code =~ s{\r}{}gs;
 837         $code =~ s{\n+$}{\n}s;
 838
 839         # XXX convert @row->{foo} into @{$row->{foo}}
 840         $code =~ s|\@(row->\{[^}]+\})|\@{\$$1}|gs;
 841
 842         my $commit = $self->param('commit');
 843         my $test = $self->param('test');
 844
 845         my $commit_changed;
 846         __commit_begin;
 847
 848         if ( $code && ( $test || $commit ) ) {
 849                 # XXX find columns used in code snippet and show them to user
 850                 my $order = 0;
 851                 foreach my $column ( $code =~ m/\$row->\{([^}]+)\}/g ) {
 852                         if ( $column =~ s/^(['"])// ) {
 853                                 $column =~ s/$1$//;
 854                         }
 855                         next if $column =~ m/\$/; # hide columns with vars in them
 856                         $commit_changed->{$column} = 0;
 857                 }
 858         }
 859
 860         my $code_path = $self->app->home->rel_file('public') . "/code";
 861         if ( $commit ) {
 862
 863                 __path_modified( $path, 'commit' );
 864
 865                 warn "# commit on ", $#$filtered + 1, " items:\n$code\n";
 866                 ( $key, $value, $out ) = ( 'key', 'value' );
 867                 foreach ( 0 .. $#$filtered ) {
 868                         my $i = $filtered->[$_];
 869                         __commit_path_code( $path, $i, $code, \$commit_changed );
 870                 }
 871
 872                 # this might move before $out to recalculate stats on source dataset?
 873                 __path_rebuild_stats( $path );
 874                 my $c = { map { $_ => 1 } @columns };
 875                 my @added_columns = sort grep { ! $c->{$_} } keys %$commit_changed;
 876                 warn "# added_columns ",dump( @added_columns );
 877                 unshift @columns, @added_columns;
 878
 879                 $loaded->{$path}->{columns} = [ @columns ];
 880                 warn "# new columns ",dump( @columns );
 881
 882                 __invalidate_path_column( $path, $_ ) foreach keys %$commit_changed;
 883
 884                 $self->_save_change({
 885                         path => $path,
 886                         time => $self->param('time') || time(),
 887                         user => $self->param('user') || $ENV{'LOGNAME'},
 888                         code => $code,
 889                         commit_changed => $commit_changed,
 890                 });
 891
 892                 if ( my $description = $self->param('code_description') ) {
 893                         my $depends = $self->param('code_depends') || die "no code_depends?";
 894                         my $path = "$code_path/$depends.$description.pl";
 895                         if ( -e $path && ! $self->param('overwrite') ) {
 896                                 warn "# code $path not saved\n";
 897                         } else {
 898                                 write_file(  $path, { binmode => ':utf8' }, "$code\n" );
 899                                 warn "code $path ", -s $path, " bytes saved\n";
 900                         }
 901                 }
 902
 903                 # remove console
 904                 $code = '';
 905                 if ( $out ) {
 906                         my $commit_dataset = join('.'
 907                                 , $self->param('code_depends')
 908                                 , $self->param('code_description')
 909                                 , time()
 910                         );
 911                         $key ||= 'key';
 912                         $value ||= 'value';
 913                         warn "key $key value $value";
 914                         my $items;
 915                         foreach my $n ( keys %$out ) {
 916                                 my $i = { $key => [ $n ] };
 917                                 my $ref = ref $out->{$n};
 918                                 if ( $ref eq 'HASH' ) {
 919                                         $i->{$_} = [ $out->{$n}->{$_} ] foreach keys %{ $out->{$n} };
 920                                 } elsif ( $ref eq 'ARRAY' ) {
 921                                         $i->{$_} = $out->{$n};
 922                                 } elsif ( ! $ref ) {
 923                                         $i->{$value} = [ $out->{$n} ];
 924                                 } else {
 925                                         $i->{_error} = [ dump($out->{$n}) ];
 926                                 }
 927                                 push @$items, $i;
 928                         };
 929                         undef $out;
 930                         my $stats = __stats( $items );
 931                         my @columns = grep { ! m/^\Q$key\E$/ } sort keys %$stats;
 932                         unshift @columns, $key;
 933
 934                         $loaded->{$commit_dataset} = {
 935                                 header => [ @columns ],
 936                                 columns => [ @columns ],
 937                                 mtime => time(),
 938                                 data => { items => $items },
 939                                 stats => $stats,
 940                                 generated => 1,
 941                         };
 942                         warn "# loaded out ", dump( $loaded->{$commit_dataset} );
 943                         $self->session('path', $commit_dataset);
 944                         $self->session('columns', [ @columns ]);
 945                         $self->session('order', $key);
 946                         return $self->redirect_to('/data/items');
 947                 }
 948
 949                 $self->session('columns', [ @columns ]);
 950         }
 951
 952         my $sorted_items;
 953         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 954         my $test_changed;
 955         my ( $key, $value, $out ) = ( 'key', 'value' ); # XXX make local
 956         foreach ( 0 .. $limit ) {
 957                 my $i = $_ + $offset;
 958                 last unless defined $filtered->[$i];
 959                 $i = $from_end - $i if $from_end;
 960                 my $id = $filtered->[$i];
 961                 my $row = Storable::dclone $data->{items}->[ $id ];
 962                 if ( $code && $test ) {
 963                         my $update;
 964                         eval $code;
 965                         if ( $@ ) {
 966                                 warn "ERROR evaling $@", dump($code);
 967                                 $self->stash('eval_error', $@) if $@;
 968                         } else {
 969                                 warn "EVAL ",dump($update);
 970                                 foreach ( keys %$update ) {
 971                                         $test_changed->{$_}++;
 972                                         $row->{$_} = $update->{$_};
 973                                 }
 974                         }
 975                 }
 976                 $row->{_row_id} ||= $id;
 977                 push @$sorted_items, $row;
 978         }
 979
 980         if ( $self->param('export') ) {
 981                 my $export_path = $self->_export_path( 'items', @columns);
 982                 open(my $fh, '>', $export_path) || die "ERROR: can't open $export_path: $!";
 983                 print $fh "#",join("\t",@columns),"\n";
 984                 foreach my $f ( 0 .. $#$filtered ) {
 985                         print $fh join("\t", map {
 986                                 my $i = $data->{items}->[ $filtered->[$f] ];
 987                                 my $v = '\N';
 988                                 if ( ! defined $i->{$_} ) {
 989                                         # nop
 990                                 } elsif ( ref $i->{$_} eq 'ARRAY' ) {
 991                                         $v =join(',', @{ $i->{$_} });
 992                                         $v = '\N' if length($v) == 0;
 993                                 } elsif ( ! ref $i->{$_} ) {
 994                                         $v = $i->{$_};
 995                                 } else {
 996                                         $v = dump $i->{$_};
 997                                 }
 998                                 $v;
 999                         } @columns),"\n";
1000                 }
1001                 close($fh);
1002                 warn "export $export_path ", -s $export_path, " bytes\n";
1003         }
1004
1005         my ( $code_depends, $code_description );
1006
1007         if ( $test ) {
1008
1009                 warn "# test_changed ",dump( $test_changed );
1010                 my $c = { map { $_ => 1 } @columns };
1011                 my @added_columns = sort grep { ! $c->{$_} } keys %$test_changed;
1012                 unshift @columns, @added_columns;
1013
1014                 warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
1015
1016                 my $depends_on;
1017                 my $tmp = $code; $tmp =~ s/\$row->\{(['"]?)([\w\s]+)\1/$depends_on->{$2}++/gse;
1018                 warn "# depends_on ",dump $depends_on;
1019
1020                 my $test_added = Storable::dclone $test_changed;
1021                 delete $test_added->{$_} foreach keys %$depends_on;
1022
1023                 $code_depends = $self->param('code_depends')
1024                 || join(',', keys %$depends_on);
1025
1026                 $code_description = $self->param('code_description') ||
1027                 join(',', keys %$test_added);
1028
1029                 $code_depends ||= $code_description; # self-modifing
1030                 if ( ! $code_depends && $out ) {
1031                         $code_depends = $key;
1032                         $code_description = $value;
1033                 }
1034
1035                 warn "# test_changed ",dump( $test_changed, $code_depends, $code_description );
1036
1037         } # test?
1038
1039         __commit_end;
1040
1041         $self->render(
1042                 order => $order,
1043                 offset => $offset,
1044                 limit => $limit,
1045                 sorted => $sorted_items,
1046                 columns => [ @columns ],
1047                 rows => $#$filtered + 1,
1048                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
1049                 unique  => { map { $_, $self->_is_unique( $_) } @columns },
1050                 filters => $self->_current_filters,
1051                 code => $code,
1052                 cols_changed => $commit ? $commit_changed : $test_changed,
1053                 code_depends => $code_depends,
1054                 code_description => $code_description,
1055                 code_path => $code_path,
1056                 out => $out,
1057         );
1058
1059 }
1060
1061
1062 sub order {
1063         my $self = shift;
1064         $self->session('order', $self->param('order'));
1065         $self->session('sort', $self->param('sort'));
1066         return $self->redirect_to('/data/items');
1067 }
1068
1069 sub _is_numeric {
1070         my ( $self, $name ) = @_;
1071
1072         my $stats = $self->_loaded( 'stats' );
1073
1074         # sort facet numerically if more >50% elements are numeric
1075         my $count = $stats->{$name}->{count};
1076         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
1077         defined $stats->{$name}->{numeric} &&
1078                 $stats->{$name}->{numeric} > $count / 2;
1079 }
1080
1081 sub _is_unique {
1082         my ( $self, $name ) = @_;
1083         my $stats = $self->_loaded( 'stats' );
1084         defined $stats->{$name}->{unique};
1085 }
1086
1087 sub _remove_filter {
1088         my ($self,$name) = @_;
1089         warn "_remove_filter $name\n";
1090
1091         my $path = $self->session('path');
1092
1093         delete $filters->{$name};
1094         delete $loaded->{$path}->{filters}->{$name};
1095         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
1096
1097         foreach (
1098                         grep { /\Q$name\E/ }
1099                         keys %{ $loaded->{$path}->{filtered} }
1100         ) {
1101                 delete $loaded->{$path}->{filtered}->{$_};
1102                 warn "remove filtered cache $_";
1103         }
1104 }
1105
1106 sub facet {
1107         my $self = shift;
1108
1109         my $path = $self->session('path') || return $self->redirect_to( '/data/index' );
1110
1111         if ( my $name = $self->param('remove') ) {
1112                 $self->_remove_filter( $name );
1113                 return $self->redirect_to( '/data/items' );
1114         }
1115
1116         my $facet;
1117         my $name = $self->param('name') || die "no name";
1118
1119         my $all = $self->_param_scalar('all', 1);
1120         my $data = $self->_loaded('data');
1121
1122         my $filters = $self->_current_filters;
1123         my $all_filters = __all_filters( keys %$filters,$self->session('order') );
1124         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
1125                 if defined $loaded->{$path}->{filtered}->{$all_filters};
1126
1127         if ( ! $filtered || $all ) {
1128                 $filtered = [ 0 .. $#{ $data->{items} } ];
1129                 warn "filter all values\n";
1130         } else {
1131                 warn "filter using $all_filters\n";
1132         }
1133
1134         foreach my $i ( @$filtered ) {
1135                 my $item = $data->{items}->[$i];
1136                 if ( ! exists $item->{$name} || ! defined $item->{$name} ) {
1137                         $facet->{ _missing }++;
1138                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
1139                         $facet->{$_}++ foreach @{ $item->{$name} };
1140                 } else {
1141                         $facet->{ $item->{$name} }++;
1142                 }
1143         }
1144
1145         my $checked_values = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
1146
1147         if ( my $code = $self->param('code') ) {
1148                 my $out;
1149                 foreach my $value ( keys %$facet ) {
1150                         my $count = $facet->{$value};
1151                         my $checked = $checked_values->{$value};
1152                         eval $code;
1153                         if ( $@ ) {
1154                                 $out = $@;
1155                                 warn "ERROR: $@\n$code\n";
1156                                 last;
1157                         } elsif ( $checked != $checked_values->{$value} ) {
1158                                 warn "checked $value $count -> $checked\n";
1159                                 $checked_values->{$value} = $checked;
1160                         }
1161                 }
1162                 warn "out ",dump( $out );
1163                 $self->stash( out => $out );
1164         }
1165
1166 #       warn "# facet $name ",dump $facet;
1167
1168         my @facet_names =
1169                   $all                      ? keys %$facet
1170                 : defined $filters->{$name} ? @{ $filters->{$name} }
1171                 : keys %$facet;
1172
1173         my $numeric = $self->_is_numeric($name);
1174
1175         my $sort = $self->param('sort');
1176         # sort numeric facets with more than 5 values ascending
1177         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
1178
1179         @facet_names = sort {
1180                 my $result;
1181                 if ( $sort eq 'a' ) {
1182                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
1183                 } elsif ( $sort eq 'd' ) {
1184                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
1185                 } elsif ( $sort eq 'c' ) {
1186                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
1187                 } else {
1188                         warn "unknown sort: $sort";
1189                         $result = $a cmp $b;
1190                 }
1191                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
1192                 $result;
1193         } @facet_names;
1194
1195         $self->render( name => $name, facet => $facet, checked => $checked_values,
1196                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
1197         );
1198 }
1199
1200
1201 sub __invalidate_path_column {
1202         my ( $path, $name ) = @_;
1203
1204         if ( defined $loaded->{$path}->{sorted}->{$name} ) {
1205                 delete $loaded->{$path}->{sorted}->{$name};
1206                 warn "# invalidate $path sorted $name\n";
1207         }
1208
1209         foreach ( grep { m/\Q$name\E/ } keys %{ $loaded->{$path}->{filtered} } ) {
1210                 delete $loaded->{$path}->{filtered}->{$_};
1211                 warn "# invalidate $path filtered $_\n";
1212         }
1213 }
1214
1215 sub __path_modified {
1216         my ( $path, $value ) = @_;
1217         $value = 1 unless defined $value;
1218
1219         $loaded->{$path}->{modified}  = $value;
1220
1221         warn "# __path_modified $path $value\n";
1222 }
1223
1224 sub __path_rebuild_stats { $loaded->{ $_[0] }->{rebuild_stats} = 1 };
1225
1226 sub _save_change {
1227         my ($self,$change) = @_;
1228
1229         my $change_path = $self->_permanent_path( 'changes' );
1230         mkdir $change_path unless -d $change_path;
1231         $change_path .= '/' . $change->{time};
1232         store $change, $change_path;
1233         utime $change->{time}, $change->{time}, $change_path;
1234         warn "_save_change $change_path ", dump($change);
1235 }
1236
1237 sub edit {
1238         my $self = shift;
1239         my $new_content = $self->param('new_content');
1240         $new_content  ||= $self->param('content'); # backward compatibility with old actions
1241
1242         my $i = $self->param('_row_id');
1243         die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
1244         my $path = $self->param('path') || die "no path";
1245         my $name = $self->param('name') || die "no name";
1246         my $status = 200; # 200 = OK, 201 = Created
1247
1248         my $data = $self->_loaded('data');
1249
1250         if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
1251                 $new_content =~ s/^\s+//s;
1252                 $new_content =~ s/\s+$//s;
1253                 my $v;
1254                 if ( $new_content =~ /\xB6/ ) { # para
1255                         $v = [ split(/\s*\xB6\s*/, $new_content) ];
1256                 } else {
1257                         $v = [ $new_content ];
1258                 }
1259
1260                 my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
1261                 my $new = dump $v;
1262                 if ( $old ne $new
1263                         && ! ( $old eq 'undef' && length($new_content) == 0 ) # new value empty, previous undef
1264                 ) {
1265                         $self->_save_change({
1266                                 path => $path,
1267                                 column => $name,
1268                                 pos => $i,
1269                                 old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
1270                                 new => $v,
1271                                 time => $self->param('time') || time(),
1272                                 user => $self->param('user') || $ENV{'LOGNAME'},
1273                                 unique => {
1274                                         map { $_ => $loaded->{$path}->{data}->{items}->[$i]->{$_}->[0] }
1275                                         grep { defined $loaded->{$path}->{stats}->{$_}->{unique} }
1276                                         keys %{ $loaded->{$path}->{stats} }
1277                                 },
1278                         });
1279
1280                         warn "# change $path $i $old -> $new\n";
1281                         $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
1282
1283                         __invalidate_path_column( $path, $name );
1284
1285                         $status = 201; # created
1286                         __path_rebuild_stats( $path );
1287
1288                         $new_content = join("\xB6",@$v);
1289
1290                 } else {
1291                         warn "# unchanged $path $i $old\n";
1292                         $status = 304;
1293                 }
1294         } else {
1295                 $new_content = "$path $i $name doesn't exist\n";
1296                 $status = 404;
1297         }
1298
1299         warn "# edit $status ", dump $new_content;
1300
1301         $self->render(
1302                 status => $status,
1303                 new_content => scalar $new_content,
1304         );
1305 }
1306
1307
1308 sub save {
1309         my $self = shift;
1310         my $path = $self->_param_or_session('path');
1311         my $dump_path = $self->_save( $path );
1312         __path_modified( $path, 0 );
1313
1314         return $self->redirect_to( '/data/items' );
1315 }
1316
1317 sub export {
1318         my $self = shift;
1319
1320         my $dir = $self->app->home->rel_file('public');
1321
1322         if ( my $import = $self->param('import') ) {
1323
1324                 if ( $import =~ m{/filter\.(.+?)\..+} ) {
1325                         my $name = $self->_column_from_unac( $1 );
1326
1327                         my @vals = map { chomp; $_ }
1328                                 read_file "$dir/export/$import", binmode => ':utf8';
1329
1330                         $self->_remove_filter( $name );
1331                         $self->_filter_on_data( $name, @vals );
1332                         $self->session( 'offset' => 0 );
1333                         return $self->redirect_to('/data/items');
1334                 } else {
1335                         warn "UNKNOWN IMPORT $import";
1336                 }
1337         }
1338
1339         if ( my $remove = $self->param('remove') ) {
1340                 my $path = "$dir/export/$remove";
1341                 unlink $path if -e $path;
1342                 $path .= '.png';
1343                 unlink $path if -e $path;
1344         }
1345
1346         my $path = $self->_export_path || return $self->redirect_to('/data/index');
1347
1348         my @files = grep { ! /\.png$/ } glob "$path/*";
1349         my $mtime = { map { $_ => (stat($_))[9] } @files };
1350         @files = sort { $mtime->{$b} <=> $mtime->{$a} } @files;
1351         $self->render( export => [ @files ] );
1352 }
1353
1354 sub __loaded_paths {
1355         return
1356                 grep { defined $loaded->{$_}->{data} }
1357                 keys %$loaded;
1358 }
1359
1360 sub reload {
1361         my $self = shift;
1362         $self->stash( reload => 1 );
1363         $self->remove;
1364 #       $self->_load_path( $self->param('path') );
1365         $self->redirect_to('/data/load?path=' . $self->param('path') );
1366 }
1367
1368 sub remove {
1369         my $self = shift;
1370         my $path = $self->param('path');
1371         if ( $path =~ m{^/tmp/mojo_facets\.} ) {
1372                 unlink $path;
1373                 warn "# unlink $path";
1374                 if ( my $name = $self->param('name') ) {
1375                         delete $loaded->{$name};
1376                         warn "# remove $name from memory";
1377                 }
1378         } else {
1379                 warn "WARNING: $path unlink ignored";
1380         }
1381         return if $self->stash('reload');
1382         return $self->redirect_to( '/data/load' );
1383 }
1384
1385 1;