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