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