lib/MojoFacets/Data.pm

   1 package MojoFacets::Data;
   2
   3 use strict;
   4 use warnings;
   5
   6 use base 'Mojolicious::Controller';
   7
   8 use Data::Dump qw(dump);
   9 use File::Slurp;
  10 use Encode;
  11 use locale;
  12 use File::Find;
  13 use Storable;
  14 use Time::HiRes qw(time);
  15 use File::Path qw(mkpath);
  16 use Text::Unaccent::PurePerl;
  17
  18 use MojoFacets::Import::File;
  19 use MojoFacets::Import::HTMLTable;
  20 use MojoFacets::Import::CSV;
  21
  22 our $loaded;
  23 our $filters;
  24
  25 sub index {
  26         my $self = shift;
  27
  28         my $data_dir = $self->app->home->rel_dir('data');
  29         die "no data dir $data_dir" unless -d $data_dir;
  30
  31         my @files;
  32         my $changes;
  33         find( sub {
  34                 my $file = $File::Find::name;
  35                 if ( -f $file && $file =~ m/\.(js(on)?|txt)$/ ) {
  36                         $file =~ s/$data_dir\/*//;
  37                         push @files, $file;
  38                 } elsif ( -f $file && $file =~ m/([^\/]+)\.changes\/(\d+\.\d+.+)/ ) {
  39                         push @{ $changes->{$1} }, $2
  40                 } elsif ( -d $file && $file =~ m/\.html$/ ) {
  41                         $file =~ s/$data_dir\/*//;
  42                         push @files, $file;
  43                 } elsif ( -f $file && $file =~ m/\.csv$/i ) {
  44                         $file =~ s/$data_dir\/*//;
  45                         push @files, $file;
  46                 } else {
  47                         #warn "IGNORE: $file\n";
  48                 }
  49         }, $data_dir);
  50
  51         @files = sort { $loaded->{$b}->{mtime} <=> $loaded->{$a}->{mtime} || lc $a cmp lc $b } @files,
  52                         grep { defined $loaded->{$_}->{generated} } keys %$loaded;
  53         my $size;
  54         $size->{$_} = -s "$data_dir/$_" foreach @files;
  55
  56         $self->render(
  57                 files => [ @files ],
  58                 size => $size,
  59                 loaded => $loaded,
  60                 filters => $filters,
  61                 dump_path => { map { $_ => $self->_dump_path($_) } @files },
  62                 changes => $changes,
  63         );
  64 }
  65
  66 sub _dump_path {
  67         my ( $self, $name ) = @_;
  68         my $dir = $self->app->home->rel_dir('data');
  69         $name =~ s/^$dir//;
  70         $name =~ s/\/+/_/g;
  71         return '/tmp/mojo_facets.' . $name . '.storable';
  72 }
  73
  74 sub _save {
  75         my ( $self, $path ) = @_;
  76
  77         my $dump_path = $self->_dump_path( $path );
  78         my $first_load = ! -e $dump_path;
  79         warn "save loaded to $dump_path";
  80         my $info = $loaded->{$path};
  81         store $info, $dump_path;
  82
  83         if ( $first_load ) {
  84                 my $mtime = $loaded->{$path}->{mtime};
  85                 utime $mtime, $mtime, $dump_path;
  86                 warn "sync time to $path at $mtime\n";
  87         }
  88
  89         warn $dump_path, ' ', -s $dump_path, " bytes\n";
  90         return $dump_path;
  91 }
  92
  93
  94 sub __stats {
  95
  96         my $stats;
  97
  98         my $nr_items = $#{ $_[0] } + 1;
  99
 100         warn "__stats $nr_items\n";
 101
 102         foreach my $e ( @{ $_[0] } ) {
 103                 foreach my $n ( keys %$e ) {
 104                         $stats->{$n}->{count}++;
 105                         my @v;
 106                         if ( ref $e->{$n} eq 'ARRAY' ) {
 107                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
 108                                 @v = @{ $e->{$n} };
 109                         } else {
 110                                 @v = ( $e->{$n} );
 111                         }
 112
 113                         foreach my $x ( @v ) {
 114                                 $stats->{$n}->{numeric}++
 115                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 116                                 $stats->{$n}->{empty}++
 117                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 118                         }
 119
 120                 }
 121         }
 122
 123         foreach my $n ( keys %$stats ) {
 124                 my $s = $stats->{$n};
 125                 next unless defined $s->{array};
 126                 if ( $s->{array} == $s->{count} ) {
 127                         delete $s->{array};
 128                         if ( $s->{count} == $nr_items ) {
 129                                 warn "check $n for uniqeness\n";
 130                                 my $unique;
 131                                 foreach my $e ( @{ $_[0] } ) {
 132                                         if ( ++$unique->{ $e->{$n}->[0] } == 2 ) {
 133                                                 $unique = 0;
 134                                                 last;
 135                                         }
 136                                 }
 137                                 if ( $unique ) {
 138                                         $stats->{$n}->{unique} = 1;
 139                                         #warn "# $n unique ",dump( $unique );
 140                                 }
 141                         }
 142                 }
 143         }
 144
 145         warn "# __stats ",dump($stats);
 146
 147         return $stats;
 148 }
 149
 150 sub _param_or_session {
 151         $_[0]->param( $_[1] ) || $_[0]->session( $_[1] )
 152 }
 153
 154 sub stats {
 155         my $self = shift;
 156         my $path = $self->_param_or_session('path');
 157         warn "stats $path\n";
 158         delete $loaded->{$path}->{stats};
 159         $self->redirect_to( '/data/columns' );
 160 }
 161
 162
 163 sub _load_path {
 164         my ( $self, $path ) = @_;
 165
 166         return if defined $loaded->{$path}->{'generated'};
 167
 168         my $full_path = $self->app->home->rel_file( 'data/' . $path );
 169         $self->redirect_to('/data/index') unless -r $full_path;
 170
 171         my $dump_path = $self->_dump_path( $path );
 172
 173         if ( defined $loaded->{$path}->{data} ) {
 174                 my $mtime = (stat($full_path))[9];
 175                 return if $loaded->{$path}->{mtime} == $mtime;
 176                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
 177         } elsif ( -e $dump_path ) {
 178                 warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
 179                 my $info = retrieve $dump_path;
 180                 $loaded->{ $path } = $info;
 181                 return;
 182         }
 183
 184         my $data;
 185         if ( -f $full_path ) {
 186                 if ( $full_path =~ m/.csv/i ) {
 187                         $data = MojoFacets::Import::CSV->new( full_path => $full_path )->data;
 188                 } else {
 189                         $data = MojoFacets::Import::File->new( full_path => $full_path, path => $path )->data;
 190                 }
 191         } elsif ( -d $full_path && $full_path =~ m/.html/ ) {
 192                 $data = MojoFacets::Import::HTMLTable->new( dir => $full_path )->data;
 193         } else {
 194                 die "can't load $full_path";
 195         }
 196
 197         my @header;
 198
 199         if ( defined $data->{header} ) {
 200                 if ( ref $data->{header} eq 'ARRAY' ) {
 201                         @header = @{ $data->{header} };
 202                 } else {
 203                         warn "header not array ", dump( $data->{header} );
 204                 }
 205         }
 206
 207         my $stats = __stats( $data->{items} );
 208
 209         @header =
 210                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 211                 grep { defined $stats->{$_}->{count} } keys %$stats
 212                 unless @header;
 213
 214         my $info = {
 215                 header => [ @header ],
 216                 stats  => $stats,
 217                 full_path => $full_path,
 218                 size => -s $full_path,
 219                 mtime => (stat($full_path))[9],
 220                 data => $data,
 221         };
 222
 223         $loaded->{ $path } = $info;
 224         $self->_save( $path );
 225
 226 }
 227
 228
 229 sub load {
 230         my $self = shift;
 231
 232         my $path = $self->param('path') || $self->redirect_to( '/data/index' );
 233
 234         my @paths = $self->param('paths');
 235         warn "# paths ", dump @paths;
 236
 237         foreach my $p ( keys %$loaded ) {
 238                 next if grep { /^\Q$p\E$/ } @paths;
 239                 warn "remove $p from memory\n";
 240                 delete $loaded->{$p};
 241         }
 242
 243         $self->_load_path( $_ ) foreach @paths;
 244
 245         warn "# path $path\n";
 246         $self->_load_path( $path );
 247
 248         $self->session( 'path' => $path );
 249
 250         my $redirect_to = '/data/items';
 251
 252         $self->session( 'header' => $loaded->{$path}->{header} );
 253         if ( ! defined $loaded->{$path}->{columns} ) {
 254                 my $columns_path = $self->_permanent_path( 'columns' );
 255                 if ( -e $columns_path ) {
 256                         my @columns = map { s/[\r\n]+$//; $_ } read_file $columns_path, binmode => ':utf8';
 257                         $loaded->{$path}->{columns} = [ @columns ];
 258                         warn "# columns_path $columns_path ",dump(@columns);
 259                 } else {
 260                         $loaded->{$path}->{columns} = $loaded->{$path}->{header}
 261                 }
 262
 263                 $redirect_to = '/data/columns';
 264         }
 265         $self->session( 'columns' => $loaded->{$path}->{columns} );
 266         $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 267         $self->redirect_to( $redirect_to );
 268 }
 269
 270
 271 sub _loaded {
 272         my ( $self, $name ) = @_;
 273         my $path = $self->session('path') || $self->param('path');
 274         $self->redirect_to('/data/index') unless $path;
 275
 276         if ( defined $loaded->{$path}->{modified} && $loaded->{$path}->{modified} > 1 ) {
 277                 my $caller = (caller(1))[3];
 278                 if ( $caller =~ m/::edit/ ) {
 279                         warn "rebuild stats for $path ignored caller $caller\n";
 280                 } else {
 281                         warn "rebuild stats for $path FORCED by modified caller $caller\n";
 282                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 283                         $loaded->{$path}->{modified} = 1;
 284                 }
 285         }
 286
 287         if ( ! defined $loaded->{$path}->{$name} ) {
 288                 warn "$path $name isn't loaded\n";
 289                 $self->_load_path( $path );
 290                 if ( ! defined $loaded->{$path}->{stats} ) {
 291                         warn "rebuild stats for $path\n";
 292                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 293                 }
 294                 if ( ! defined $loaded->{$path}->{$name} ) {
 295                         warn "MISSING $name for $path\n";
 296                         $self->redirect_to('/data/index')
 297                 }
 298         }
 299
 300         $self->session( 'modified' => $loaded->{$path}->{modified} );
 301
 302         return $loaded->{$path}->{$name};
 303 }
 304
 305
 306 sub _checked {
 307         my $self = shift;
 308         my $checked;
 309         $checked->{$_}++ foreach @_;
 310 #       warn "# _checked ",dump($checked);
 311         return $checked;
 312 }
 313
 314 sub _permanent_path {
 315         my $self = shift;
 316         my $path = $self->_param_or_session('path');
 317         $self->app->home->rel_dir('data') . '/' . join('.', $path, @_);
 318 }
 319
 320 sub _export_path {
 321         my $self = shift;
 322         my $path = $self->_param_or_session('path');
 323         if ( ! $path ) {
 324                 warn "no path in param or session";
 325                 return;
 326         }
 327         my $dir = $self->app->home->rel_dir('public') . "/export/$path";
 328         mkpath $dir unless -e $dir;
 329         $dir . '/' . unac_string( join('.', @_) );
 330 }
 331
 332 sub columns {
 333     my $self = shift;
 334
 335         if ( $self->param('columns') ) {
 336                 my @columns = $self->_param_array('columns');
 337                 write_file( $self->_permanent_path( 'columns' ), { binmode => ':utf8' }, map { "$_\n" } @columns );
 338                 $self->redirect_to('/data/items');
 339         }
 340
 341         my $stats = $self->_loaded( 'stats' );
 342
 343         my @columns;
 344         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 345
 346         foreach my $c ( @{ $self->session( 'header' ) } ) {
 347                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 348         }
 349
 350     $self->render(
 351                 message => 'Select columns to display',
 352                 stats => $stats,
 353                 columns => \@columns,
 354                 checked => $self->_checked( $self->_param_array('columns') ),
 355         );
 356 }
 357
 358 sub _param_array {
 359     my ($self,$name) = @_;
 360
 361         my @array = $self->param($name);
 362         my $path  = $self->session('path');
 363
 364         if ( @array ) {
 365                 $self->session($name => [ @array ]);
 366                 $loaded->{$path}->{$name} = [ @array ];
 367         } elsif ( my $session = $self->session($name) ) {
 368                 if ( ref $session eq 'ARRAY' ) {
 369                         @array = @$session;
 370                 } else {
 371                         die "$name not array ",dump($session);
 372                 }
 373         }
 374         #warn "# $name ",dump @array;
 375         return @array;
 376 }
 377
 378 sub _param_scalar {
 379     my ($self,$name,$default) = @_;
 380
 381         my $scalar = $self->param($name);
 382
 383         if ( defined $scalar ) {
 384                 $self->session($name => $scalar);
 385         } else {
 386                 $scalar = $self->session($name);
 387         }
 388
 389         if ( ! defined $scalar ) {
 390                 $scalar = $default;
 391                 die "no default for $name" unless defined $scalar;
 392                 $self->session($name => $scalar);
 393         }
 394
 395         warn "# _param_scalar $name ",dump $scalar;
 396         return $scalar;
 397 }
 398
 399 sub filter {
 400         my $self = shift;
 401
 402         my $name = $self->param('filter_name') || die "name?";
 403         my @vals = $self->param('filter_vals');
 404
 405         $self->_remove_filter( $name );
 406         if ( @vals ) {
 407                 $self->_filter_on_data( $name, @vals );
 408                 if ( my $permanent = $self->param('_permanent') ) {
 409                         my $permanent_path = $self->_export_path( 'filter', $name, $permanent );
 410                         write_file $permanent_path, { binmode => ':utf8' }, map { "$_\n" } @vals;
 411                         warn "permanent filter $permanent_path ", -s $permanent_path;
 412                 }
 413         }
 414
 415         $self->session( 'offset' => 0 );
 416
 417         $self->redirect_to('/data/items');
 418 }
 419
 420 sub _filter_on_data {
 421         my ( $self, $name, @vals ) = @_;
 422
 423         my $path = $self->session('path');
 424
 425         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 426                 warn "filter $name not found in data set";
 427                 return;
 428         }
 429
 430         $filters->{$name} = [ @vals ];
 431         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 432
 433         my $filter_hash;
 434         $filter_hash->{$_}++ foreach @vals;
 435
 436         #warn "# filter_hash ",dump( $filter_hash );
 437
 438         my $items = $self->_loaded('data')->{items};
 439
 440         my $include_missing = defined $filter_hash->{_missing};
 441         my $filtered_items;
 442
 443         foreach my $i ( 0 .. $#$items ) {
 444
 445                 if ( defined $items->[$i]->{$name} ) {
 446                         my $row = $items->[$i]->{$name};
 447                         $row = [ $row ] unless ref $row eq 'ARRAY'; # FIXME probably wrong place
 448                         foreach my $v ( @$row ) {
 449                                 if ( defined $filter_hash->{ $v } ) {
 450                                         $filtered_items->{$i}++;
 451                                 }
 452                         }
 453                 } elsif ( $include_missing ) {
 454                         $filtered_items->{$i}++;
 455                 }
 456         }
 457
 458         #warn "# filter $name ",dump($filtered_items);
 459
 460         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 461         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 462 }
 463
 464
 465 sub _current_filters {
 466         my $self = shift;
 467         my $current_filters;
 468         my $columns = $self->_loaded('header');
 469         if ( my $sc = $self->session('columns') ) {
 470                 $columns = $sc;
 471         }
 472
 473         $current_filters->{ $_ } = $filters->{ $_ }
 474                 foreach ( grep { defined $filters->{ $_ } } @$columns )
 475         ;
 476         warn "# _current_filters ",dump($columns);
 477         return $current_filters;
 478 }
 479
 480 sub _data_sorted_by {
 481         my ( $self, $order ) = @_;
 482
 483         my $path = $self->session('path');
 484
 485         warn "_data_sorted_by $order from $path";
 486
 487         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 488                 return $loaded->{$path}->{sorted}->{$order};
 489         }
 490
 491         my $data = $self->_loaded( 'data' );
 492         my $numeric = $self->_is_numeric($order);
 493         my $missing = $numeric ? 0 : '';
 494         no warnings qw(numeric);
 495         my $nr = 0;
 496         my @sorted = map {
 497                 $_->[0]
 498         } sort {
 499                 if ( $numeric ) {
 500                         $a->[1] <=> $b->[1]
 501                 } else {
 502                         $a->[1] cmp $b->[1]
 503                 }
 504         } map {
 505                 my $v;
 506                 if ( ! exists $_->{$order} ) {
 507                         $v = $missing;
 508                 } elsif ( ref $_->{$order} eq 'ARRAY' ) {
 509                         $v = join('', @{$_->{$order}});
 510                 } else {
 511                         $v = $_->{$order};
 512                 }
 513                 [ $nr++, $v ]
 514         } @{ $data->{items} }
 515         ;
 516
 517         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 518         #warn "# sorted ",dump( @sorted );
 519
 520         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 521 }
 522
 523
 524 sub __all_filters {
 525         my $order = pop @_;
 526         join(',', sort(@_), 'order', $order);
 527 }
 528
 529 sub items {
 530         my $self = shift;
 531
 532         if ( my $show = $self->param('id') ) {
 533                 $self->param('show', $show);
 534                 warn "show $show\n";
 535         }
 536
 537         my $path = $self->session('path');
 538
 539         my @columns = $self->_param_array('columns');
 540         $self->redirect_to('/data/columns') unless @columns;
 541         my $order   = $self->_param_scalar('order', $columns[0]);
 542         my $sort    = $self->_param_scalar('sort', 'a');
 543         my $offset  = $self->_param_scalar('offset', 0);
 544         my $limit   = $self->_param_scalar('limit', 20);
 545         $self->_param_scalar('show', 'table');
 546
 547         # fix offset when changing limit
 548         $offset = int( $offset / $limit ) * $limit;
 549
 550         if ( ! grep { /^\Q$order\E$/ } @columns ) {
 551                 $order = $columns[0];
 552                 $self->session( order => $order );
 553         }
 554         my $sorted = $self->_data_sorted_by( $order );
 555
 556         my @filter_names;
 557         if ( $filters ) {
 558                 foreach my $name ( keys %$filters ) {
 559                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 560                                 warn "skip filter $name not found in $path\n";
 561                                 next;
 562                         }
 563                         push @filter_names, $name;
 564                 }
 565                 warn "filter_names ",dump( @filter_names );
 566                 foreach my $name ( @filter_names ) {
 567                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 568                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 569                 }
 570         }
 571
 572         my $all_filters = __all_filters( @filter_names,$order );
 573
 574 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 575
 576         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 577
 578                 my $path_filters = $loaded->{$path}->{filters};
 579
 580                 warn "create combined filter for $all_filters from ", $#$sorted + 1, " items\n";
 581
 582                 my @filtered;
 583                 foreach my $i ( 0 .. $#$sorted ) {
 584                         my $pos = $sorted->[$i];
 585
 586                         if ( $#filter_names == -1 ) {
 587                                 push @filtered, $pos;
 588                                 next;
 589                         }
 590
 591                         my $skip = 0;
 592                         foreach ( @filter_names ) {
 593                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 594                         }
 595                         next if $skip;
 596
 597                         push @filtered, $pos;
 598                 }
 599
 600                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 601         }
 602
 603         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 604                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 605
 606         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 607
 608         my $data = $self->_loaded('data');
 609
 610         my $code = $self->_param_scalar('code','');
 611         $code =~ s{[\r\n]+$}{}s;
 612
 613         my $commit = $self->param('commit');
 614         my $test = $self->param('test');
 615
 616         my $commit_changed;
 617
 618         if ( $code && ( $test || $commit ) ) {
 619                 # XXX find columns used in code snippet and show them to user
 620                 my $order = 0;
 621                 foreach my $column ( $code =~ m/\$row->{([^}]+)}/g ) {
 622                         if ( $column =~ s/^(['"])// ) {
 623                                 $column =~ s/$1$//;
 624                         }
 625                         next if $column =~ m/\$/; # hide columns with vars in them
 626                         $commit_changed->{$column} = 0;
 627                 }
 628         }
 629
 630         my $code_path = $self->app->home->rel_dir('public') . "/code";
 631         if ( $commit ) {
 632
 633                 warn "# commit on ", $#$filtered + 1, " items:\n$code\n";
 634                 my $out;
 635                 foreach ( 0 .. $#$filtered ) {
 636                         my $i = $filtered->[$_];
 637                         my $row = $data->{items}->[$i];
 638                         my $update;
 639                         eval $code;
 640                         foreach ( keys %$update ) {
 641                                 $commit_changed->{$_}++;
 642                                 $row->{$_} = $update->{$_};
 643                         }
 644                 }
 645                 if ( my $description = $self->param('code_description') ) {
 646                         my $depends = $self->param('code_depends') || die "no code_depends?";
 647                         my $path = "$code_path/$depends.$description.pl";
 648                         if ( -e $path && ! $self->param('overwrite') ) {
 649                                 warn "# code $path not saved\n";
 650                         } else {
 651                                 write_file(  $path, { binmode => ':utf8' }, $code );
 652                                 warn "code $path ", -s $path, " bytes saved\n";
 653                         }
 654                 }
 655                 $code = '';
 656                 if ( $out ) {
 657                         my $commit_dataset = join('.'
 658                                 , $self->param('code_depends')
 659                                 , $self->param('code_description')
 660                                 , time()
 661                         );
 662                         my $key = $self->param('code_depends');
 663                         $key =~ s/,.+$//;
 664                         $key ||= 'key';
 665                         my $items;
 666                         foreach my $n ( keys %$out ) {
 667                                 my $i = { $key => [ $n ] };
 668                                 my $ref = ref $out->{$n};
 669                                 if ( $ref eq 'HASH' ) {
 670                                         $i->{$_} = [ $out->{$n}->{$_} ] foreach keys %{ $out->{$n} };
 671                                 } elsif ( $ref eq 'ARRAY' ) {
 672                                         $i->{$_} = $out->{$n};
 673                                 } elsif ( ! $ref ) {
 674                                         $i->{value} = [ $out->{$n} ];
 675                                 } else {
 676                                         $i->{_error} = [ dump($out->{$n}) ];
 677                                 }
 678                                 push @$items, $i;
 679                         };
 680                         undef $out;
 681                         my $stats = __stats( $items );
 682                         my @columns = grep { ! m/^\Q$key\E$/ } sort keys %$stats;
 683                         unshift @columns, $key;
 684
 685                         $loaded->{$commit_dataset} = {
 686                                 header => [ @columns ],
 687                                 columns => [ @columns ],
 688                                 mtime => time(),
 689                                 data => { items => $items },
 690                                 stats => $stats,
 691                                 generated => 1,
 692                         };
 693                         warn "# loaded out ", dump( $loaded->{$commit_dataset} );
 694                         $self->session('path', $commit_dataset);
 695                         $self->session('columns', [ @columns ]);
 696                         $self->session('order', $key);
 697                         $self->redirect_to('/data/items');
 698                         return; # FIXME needed to correctly show columns
 699                 }
 700
 701                 # this might move before $out to recalculate stats on source dataset?
 702                 __path_modified( $path, 2 );
 703                 my $c = { map { $_ => 1 } @columns };
 704                 my @added_columns = sort grep { ! $c->{$_} } keys %$commit_changed;
 705                 warn "# added_columns ",dump( @added_columns );
 706                 unshift @columns, @added_columns;
 707
 708                 $self->session('columns', [ @columns ]);
 709                 $loaded->{$path}->{columns} = [ @columns ];
 710                 warn "# new columns ",dump( @columns );
 711
 712                 __invalidate_path_column( $path, $_ ) foreach keys %$commit_changed;
 713         }
 714
 715         my $sorted_items;
 716         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 717         my $test_changed;
 718         my $out;
 719         foreach ( 0 .. $limit ) {
 720                 my $i = $_ + $offset;
 721                 last unless defined $filtered->[$i];
 722                 $i = $from_end - $i if $from_end;
 723                 my $id = $filtered->[$i];
 724                 my $row = Storable::dclone $data->{items}->[ $id ];
 725                 if ( $code && $test ) {
 726                         my $update;
 727                         eval $code;
 728                         if ( $@ ) {
 729                                 warn "ERROR evaling\n$code\n$@";
 730                                 $self->stash('eval_error', $@) if $@;
 731                         } else {
 732                                 warn "EVAL ",dump($update);
 733                                 foreach ( keys %$update ) {
 734                                         $test_changed->{$_}++;
 735                                         $row->{$_} = $update->{$_};
 736                                 }
 737                         }
 738                 }
 739                 $row->{_row_id} ||= $id;
 740                 push @$sorted_items, $row;
 741         }
 742
 743         if ( $self->param('export') ) {
 744                 my $export_path = $self->_export_path( 'items', @columns);
 745                 open(my $fh, '>', $export_path) || warn "ERROR: can't open $export_path: $!";
 746                 foreach my $f ( 0 .. $#$filtered ) {
 747                         print $fh join("\t", map {
 748                                 my $i = $data->{items}->[ $filtered->[$f] ];
 749                                 if ( ref $i->{$_} eq 'ARRAY' ) {
 750                                         join(',', @{ $i->{$_} });
 751                                 } else {
 752                                         dump $i->{$_};
 753                                 }
 754                         } @columns),"\n";
 755                 }
 756                 close($fh);
 757                 warn "export $export_path ", -s $export_path, " bytes\n";
 758         }
 759
 760         warn "# test_changed ",dump( $test_changed );
 761         my $c = { map { $_ => 1 } @columns };
 762         my @added_columns = sort grep { ! $c->{$_} } keys %$test_changed;
 763         unshift @columns, @added_columns;
 764
 765         warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 766
 767         my $code_depends = $self->param('code_depends')||
 768         join(',', sort grep { $test_changed->{$_} == 0 } keys %$test_changed );
 769         my $code_description = $self->param('code_description') ||
 770         join(',', @added_columns);
 771
 772         $code_depends ||= $code_description; # self-modifing
 773
 774         warn "# test_changed ",dump( $test_changed, $code_depends, $code_description );
 775
 776         $self->render(
 777                 order => $order,
 778                 offset => $offset,
 779                 limit => $limit,
 780                 sorted => $sorted_items,
 781                 columns => [ @columns ],
 782                 rows => $#$filtered + 1,
 783                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
 784                 unique  => { map { $_, $self->_is_unique( $_) } @columns },
 785                 filters => $self->_current_filters,
 786                 code => $code,
 787                 cols_changed => $commit ? $commit_changed : $test_changed,
 788                 code_depends => $code_depends,
 789                 code_description => $code_description,
 790                 code_path => $code_path,
 791                 out => $out,
 792         );
 793
 794 }
 795
 796
 797 sub order {
 798         my $self = shift;
 799         $self->session('order', $self->param('order'));
 800         $self->session('sort', $self->param('sort'));
 801         $self->redirect_to('/data/items');
 802 }
 803
 804 sub _is_numeric {
 805         my ( $self, $name ) = @_;
 806
 807         my $stats = $self->_loaded( 'stats' );
 808
 809         # sort facet numerically if more >50% elements are numeric
 810         my $count = $stats->{$name}->{count};
 811         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
 812         defined $stats->{$name}->{numeric} &&
 813                 $stats->{$name}->{numeric} > $count / 2;
 814 }
 815
 816 sub _is_unique {
 817         my ( $self, $name ) = @_;
 818         my $stats = $self->_loaded( 'stats' );
 819         defined $stats->{$name}->{unique};
 820 }
 821
 822 sub _remove_filter {
 823         my ($self,$name) = @_;
 824         warn "_remove_filter $name\n";
 825
 826         my $path = $self->session('path');
 827
 828         delete $filters->{$name};
 829         delete $loaded->{$path}->{filters}->{$name};
 830         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
 831
 832         foreach (
 833                         grep { /\Q$name\E/ }
 834                         keys %{ $loaded->{$path}->{filtered} }
 835         ) {
 836                 delete $loaded->{$path}->{filtered}->{$_};
 837                 warn "remove filtered cache $_";
 838         }
 839 }
 840
 841 sub facet {
 842         my $self = shift;
 843
 844         my $path = $self->session('path') || $self->redirect_to( '/data/index' );
 845
 846         if ( my $name = $self->param('remove') ) {
 847                 $self->_remove_filter( $name );
 848                 $self->redirect_to( '/data/items' );
 849         }
 850
 851         my $facet;
 852         my $name = $self->param('name') || die "no name";
 853
 854         my $all = $self->_param_scalar('all', 1);
 855         my $data = $self->_loaded('data');
 856
 857         my $filters = $self->_current_filters;
 858         my $all_filters = __all_filters( keys %$filters,$self->session('order') );
 859         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 860                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 861
 862         if ( ! $filtered || $all ) {
 863                 $filtered = [ 0 .. $#{ $data->{items} } ];
 864                 warn "filter all values\n";
 865         } else {
 866                 warn "filter using $all_filters\n";
 867         }
 868
 869         foreach my $i ( @$filtered ) {
 870                 my $item = $data->{items}->[$i];
 871                 if ( ! exists $item->{$name} ) {
 872                         $facet->{ _missing }++;
 873                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
 874                         $facet->{$_}++ foreach @{ $item->{$name} };
 875                 } else {
 876                         $facet->{ $item->{$name} }++;
 877                 }
 878         }
 879
 880 #       warn "# facet $name ",dump $facet;
 881
 882         my $checked;
 883         my @facet_names =
 884                   $all                      ? keys %$facet
 885                 : defined $filters->{$name} ? @{ $filters->{$name} }
 886                 : keys %$facet;
 887
 888         $checked = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
 889
 890         my $numeric = $self->_is_numeric($name);
 891
 892         my $sort = $self->param('sort');
 893         # sort numeric facets with more than 5 values ascending
 894         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
 895
 896         @facet_names = sort {
 897                 my $result;
 898                 if ( $sort eq 'a' ) {
 899                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
 900                 } elsif ( $sort eq 'd' ) {
 901                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
 902                 } elsif ( $sort eq 'c' ) {
 903                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
 904                 } else {
 905                         warn "unknown sort: $sort";
 906                         $result = $a cmp $b;
 907                 }
 908                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
 909                 $result;
 910         } @facet_names;
 911
 912         $self->render( name => $name, facet => $facet, checked => $checked,
 913                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
 914         );
 915 }
 916
 917
 918 sub __invalidate_path_column {
 919         my ( $path, $name ) = @_;
 920
 921         if ( defined $loaded->{$path}->{sorted}->{$name} ) {
 922                 delete $loaded->{$path}->{sorted}->{$name};
 923                 warn "# invalidate $path sorted $name\n";
 924         }
 925
 926         foreach ( grep { m/\Q$name\E/ } keys %{ $loaded->{$path}->{filtered} } ) {
 927                 delete $loaded->{$path}->{filtered}->{$_};
 928                 warn "# invalidate $path filtered $_\n";
 929         }
 930 }
 931
 932 sub __path_modified {
 933         my ( $path, $value ) = @_;
 934         $value = 1 unless defined $value;
 935
 936         $loaded->{$path}->{modified}  = $value;
 937
 938         warn "# __path_modified $path $value\n";
 939 }
 940
 941 sub edit {
 942         my $self = shift;
 943         my $new_content = $self->param('new_content');
 944         $new_content  ||= $self->param('content'); # backward compatibility with old actions
 945
 946         my $i = $self->param('_row_id');
 947         die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
 948         my $path = $self->param('path') || die "no path";
 949         my $name = $self->param('name') || die "no name";
 950         my $status = 200; # 200 = OK, 201 = Created
 951
 952         my $data = $self->_loaded('data');
 953
 954         if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
 955                 $new_content =~ s/^\s+//s;
 956                 $new_content =~ s/\s+$//s;
 957                 my $v;
 958                 if ( $new_content =~ /\xB6/ ) { # para
 959                         $v = [ split(/\s*\xB6\s*/, $new_content) ];
 960                 } else {
 961                         $v = [ $new_content ];
 962                 }
 963
 964                 my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
 965                 my $new = dump $v;
 966                 if ( $old ne $new
 967                         && ! ( $old eq 'undef' && length($new_content) == 0 ) # new value empty, previous undef
 968                 ) {
 969                         my $change = {
 970                                 path => $path,
 971                                 column => $name,
 972                                 pos => $i,
 973                                 old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
 974                                 new => $v,
 975                                 time => $self->param('time') || time(),
 976                                 user => $self->param('user') || $ENV{'LOGNAME'},
 977                                 unique => {
 978                                         map { $_ => $loaded->{$path}->{data}->{items}->[$i]->{$_}->[0] }
 979                                         grep { defined $loaded->{$path}->{stats}->{$_}->{unique} }
 980                                         keys %{ $loaded->{$path}->{stats} }
 981                                 },
 982                         };
 983                         my $change_path = $self->_permanent_path( 'changes' );
 984                         mkdir $change_path unless -d $change_path;
 985                         $change_path .= '/' . $change->{time};
 986                         store $change, $change_path;
 987                         utime $change->{time}, $change->{time}, $change_path;
 988                         warn "# $change_path ", dump($change);
 989
 990                         warn "# change $path $i $old -> $new\n";
 991                         $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
 992
 993                         __invalidate_path_column( $path, $name );
 994
 995                         $status = 201; # created
 996                         # modified = 2 -- force rebuild of stats
 997                         __path_modified( $path, 2 );
 998
 999                         $new_content = join("\xB6",@$v);
1000
1001                 } else {
1002                         warn "# unchanged $path $i $old\n";
1003                         $status = 304;
1004                 }
1005         } else {
1006                 $new_content = "$path $i $name doesn't exist\n";
1007                 $status = 404;
1008         }
1009
1010         warn "# edit $status ", dump $new_content;
1011
1012         $self->render(
1013                 status => $status,
1014                 new_content => scalar $new_content,
1015         );
1016 }
1017
1018
1019 sub save {
1020         my $self = shift;
1021         my $path = $self->_param_or_session('path');
1022         my $dump_path = $self->_save( $path );
1023         __path_modified( $path, 0 );
1024
1025         $self->redirect_to( '/data/items' );
1026 }
1027
1028 sub export {
1029         my $self = shift;
1030
1031         my $dir = $self->app->home->rel_dir('public');
1032
1033         if ( my $import = $self->param('import') ) {
1034
1035                 if ( $import =~ m{/filter\.(.+?)\..+} ) {
1036                         my $name = $1;
1037                         my @vals = map { chomp; $_ }
1038                                 read_file "$dir/export/$import", binmode => ':utf8';
1039                         $self->_remove_filter( $name );
1040                         $self->_filter_on_data( $name, @vals );
1041                         $self->session( 'offset' => 0 );
1042                         $self->redirect_to('/data/items');
1043                 } else {
1044                         warn "UNKNOWN IMPORT $import";
1045                 }
1046         }
1047
1048         if ( my $remove = $self->param('remove') ) {
1049                 my $path = "$dir/export/$remove";
1050                 unlink $path if -e $path;
1051                 $path .= '.png';
1052                 unlink $path if -e $path;
1053         }
1054
1055         my $path = $self->_export_path || $self->redirect_to('/data/index');
1056
1057         my @files = grep { ! /\.png$/ } glob "$path/*";
1058         my $mtime = { map { $_ => (stat($_))[9] } @files };
1059         @files = sort { $mtime->{$b} <=> $mtime->{$a} } @files;
1060         $self->render( export => [ @files ] );
1061 }
1062
1063 sub __loaded_paths {
1064         return
1065                 grep { defined $loaded->{$_}->{data} }
1066                 keys %$loaded;
1067 }
1068
1069 1;