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