lib/MojoFacets/Data.pm

   1 package MojoFacets::Data;
   2
   3 use strict;
   4 use warnings;
   5
   6 use base 'Mojolicious::Controller';
   7
   8 use Data::Dump qw(dump);
   9 use File::Slurp;
  10 use Encode;
  11 use locale;
  12 use File::Find;
  13 use Storable;
  14 use Time::HiRes qw(time);
  15 use File::Path qw(mkpath);
  16 use Text::Unaccent::PurePerl;
  17
  18 use MojoFacets::Import::File;
  19 use MojoFacets::Import::HTMLTable;
  20 use MojoFacets::Import::CSV;
  21
  22 our $loaded;
  23 our $filters;
  24
  25 sub index {
  26         my $self = shift;
  27
  28         my $data_dir = $self->app->home->rel_dir('data');
  29         die "no data dir $data_dir" unless -d $data_dir;
  30
  31         my @files;
  32         my $changes;
  33         find( sub {
  34                 my $file = $File::Find::name;
  35                 if ( -f $file && $file =~ m/\.(js(on)?|txt)$/ ) {
  36                         $file =~ s/$data_dir\/*//;
  37                         push @files, $file;
  38                 } elsif ( -f $file && $file =~ m/([^\/]+)\.changes\/(\d+\.\d+.+)/ ) {
  39                         push @{ $changes->{$1} }, $2
  40                 } elsif ( -d $file && $file =~ m/\.html$/ ) {
  41                         $file =~ s/$data_dir\/*//;
  42                         push @files, $file;
  43                 } elsif ( -f $file && $file =~ m/\.csv$/i ) {
  44                         $file =~ s/$data_dir\/*//;
  45                         push @files, $file;
  46                 } else {
  47                         #warn "IGNORE: $file\n";
  48                 }
  49         }, $data_dir);
  50
  51         @files = sort { $loaded->{$b}->{mtime} <=> $loaded->{$a}->{mtime} || lc $a cmp lc $b } @files,
  52                         grep { defined $loaded->{$_}->{generated} } keys %$loaded;
  53         my $size;
  54         $size->{$_} = -s "$data_dir/$_" foreach @files;
  55
  56         $self->render(
  57                 files => [ @files ],
  58                 size => $size,
  59                 loaded => $loaded,
  60                 filters => $filters,
  61                 dump_path => { map { $_ => $self->_dump_path($_) } @files },
  62                 changes => $changes,
  63         );
  64 }
  65
  66 sub _dump_path {
  67         my ( $self, $name ) = @_;
  68         my $dir = $self->app->home->rel_dir('data');
  69         $name =~ s/^$dir//;
  70         $name =~ s/\/+/_/g;
  71         return '/tmp/mojo_facets.' . $name . '.storable';
  72 }
  73
  74 sub _save {
  75         my ( $self, $path ) = @_;
  76
  77         my $dump_path = $self->_dump_path( $path );
  78         my $first_load = ! -e $dump_path;
  79         warn "save loaded to $dump_path";
  80         my $info = $loaded->{$path};
  81         store $info, $dump_path;
  82
  83         if ( $first_load ) {
  84                 my $mtime = $loaded->{$path}->{mtime};
  85                 utime $mtime, $mtime, $dump_path;
  86                 warn "sync time to $path at $mtime\n";
  87         }
  88
  89         warn $dump_path, ' ', -s $dump_path, " bytes\n";
  90         return $dump_path;
  91 }
  92
  93
  94 sub __stats {
  95
  96         my $stats;
  97
  98         my $nr_items = $#{ $_[0] } + 1;
  99
 100         warn "__stats $nr_items\n";
 101
 102         foreach my $e ( @{ $_[0] } ) {
 103                 foreach my $n ( keys %$e ) {
 104                         $stats->{$n}->{count}++;
 105                         my @v;
 106                         if ( ref $e->{$n} eq 'ARRAY' ) {
 107                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
 108                                 @v = @{ $e->{$n} };
 109                         } else {
 110                                 @v = ( $e->{$n} );
 111                         }
 112
 113                         foreach my $x ( @v ) {
 114                                 $stats->{$n}->{numeric}++
 115                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 116                                 $stats->{$n}->{empty}++
 117                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 118                         }
 119
 120                 }
 121         }
 122
 123         foreach my $n ( keys %$stats ) {
 124                 my $s = $stats->{$n};
 125                 next unless defined $s->{array};
 126                 if ( $s->{array} == $s->{count} ) {
 127                         delete $s->{array};
 128                         if ( $s->{count} == $nr_items ) {
 129                                 warn "check $n for uniqeness\n";
 130                                 my $unique;
 131                                 foreach my $e ( @{ $_[0] } ) {
 132                                         if ( ++$unique->{ $e->{$n}->[0] } == 2 ) {
 133                                                 $unique = 0;
 134                                                 last;
 135                                         }
 136                                 }
 137                                 if ( $unique ) {
 138                                         $stats->{$n}->{unique} = 1;
 139                                         #warn "# $n unique ",dump( $unique );
 140                                 }
 141                         }
 142                 }
 143         }
 144
 145         warn "# __stats ",dump($stats);
 146
 147         return $stats;
 148 }
 149
 150 sub _param_or_session {
 151         $_[0]->param( $_[1] ) || $_[0]->session( $_[1] )
 152 }
 153
 154 sub stats {
 155         my $self = shift;
 156         my $path = $self->_param_or_session('path');
 157         warn "stats $path\n";
 158         delete $loaded->{$path}->{stats};
 159         $self->redirect_to( '/data/columns' );
 160 }
 161
 162
 163 sub _load_path {
 164         my ( $self, $path ) = @_;
 165
 166         return if defined $loaded->{$path}->{'generated'};
 167
 168         my $full_path = $self->app->home->rel_file( 'data/' . $path );
 169         $self->redirect_to('/data/index') unless -r $full_path;
 170
 171         my $dump_path = $self->_dump_path( $path );
 172
 173         if ( defined $loaded->{$path}->{data} ) {
 174                 my $mtime = (stat($full_path))[9];
 175                 return if $loaded->{$path}->{mtime} == $mtime;
 176                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
 177         } elsif ( -e $dump_path ) {
 178                 warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
 179                 my $info = retrieve $dump_path;
 180                 $loaded->{ $path } = $info;
 181                 return;
 182         }
 183
 184         my $data;
 185         if ( -f $full_path ) {
 186                 if ( $full_path =~ m/.csv/i ) {
 187                         $data = MojoFacets::Import::CSV->new( full_path => $full_path )->data;
 188                 } else {
 189                         $data = MojoFacets::Import::File->new( full_path => $full_path, path => $path )->data;
 190                 }
 191         } elsif ( -d $full_path && $full_path =~ m/.html/ ) {
 192                 $data = MojoFacets::Import::HTMLTable->new( dir => $full_path )->data;
 193         } else {
 194                 die "can't load $full_path";
 195         }
 196
 197         my @header;
 198
 199         if ( defined $data->{header} ) {
 200                 if ( ref $data->{header} eq 'ARRAY' ) {
 201                         @header = @{ $data->{header} };
 202                 } else {
 203                         warn "header not array ", dump( $data->{header} );
 204                 }
 205         }
 206
 207         my $stats = __stats( $data->{items} );
 208
 209         @header =
 210                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 211                 grep { defined $stats->{$_}->{count} } keys %$stats
 212                 unless @header;
 213
 214         my $info = {
 215                 header => [ @header ],
 216                 stats  => $stats,
 217                 full_path => $full_path,
 218                 size => -s $full_path,
 219                 mtime => (stat($full_path))[9],
 220                 data => $data,
 221         };
 222
 223         $loaded->{ $path } = $info;
 224         $self->_save( $path );
 225
 226 }
 227
 228
 229 sub load {
 230         my $self = shift;
 231
 232         my $path = $self->param('path') || $self->redirect_to( '/data/index' );
 233
 234         my @paths = $self->param('paths');
 235         warn "# paths ", dump @paths;
 236
 237         foreach my $p ( keys %$loaded ) {
 238                 next if grep { /^\Q$p\E$/ } @paths;
 239                 warn "remove $p from memory\n";
 240                 delete $loaded->{$p};
 241         }
 242
 243         $self->_load_path( $_ ) foreach @paths;
 244
 245         warn "# path $path\n";
 246         $self->_load_path( $path );
 247
 248         $self->session( 'path' => $path );
 249
 250         my $redirect_to = '/data/items';
 251
 252         $self->session( 'header' => $loaded->{$path}->{header} );
 253         if ( ! defined $loaded->{$path}->{columns} ) {
 254                 my $columns_path = $self->_permanent_path( 'columns' );
 255                 if ( -e $columns_path ) {
 256                         my @columns = map { s/[\r\n]+$//; $_ } read_file $columns_path, binmode => ':utf8';
 257                         $loaded->{$path}->{columns} = [ @columns ];
 258                         warn "# columns_path $columns_path ",dump(@columns);
 259                 } else {
 260                         $loaded->{$path}->{columns} = $loaded->{$path}->{header}
 261                 }
 262
 263                 $redirect_to = '/data/columns';
 264         }
 265         $self->session( 'columns' => $loaded->{$path}->{columns} );
 266         $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 267         $self->redirect_to( $redirect_to );
 268 }
 269
 270
 271 sub _loaded {
 272         my ( $self, $name ) = @_;
 273         my $path = $self->session('path') || $self->param('path');
 274         $self->redirect_to('/data/index') unless $path;
 275
 276         if ( defined $loaded->{$path}->{modified} && $loaded->{$path}->{modified} > 1 ) {
 277                 my $caller = (caller(1))[3];
 278                 if ( $caller =~ m/::edit/ ) {
 279                         warn "rebuild stats for $path ignored caller $caller\n";
 280                 } else {
 281                         warn "rebuild stats for $path FORCED by modified caller $caller\n";
 282                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 283                         $loaded->{$path}->{modified} = 1;
 284                 }
 285         }
 286
 287         if ( ! defined $loaded->{$path}->{$name} ) {
 288                 warn "$path $name isn't loaded\n";
 289                 $self->_load_path( $path );
 290                 if ( ! defined $loaded->{$path}->{stats} ) {
 291                         warn "rebuild stats for $path\n";
 292                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 293                 }
 294                 if ( ! defined $loaded->{$path}->{$name} ) {
 295                         warn "MISSING $name for $path\n";
 296                         $self->redirect_to('/data/index')
 297                 }
 298         }
 299
 300         $self->session( 'modified' => $loaded->{$path}->{modified} );
 301
 302         return $loaded->{$path}->{$name};
 303 }
 304
 305
 306 sub _checked {
 307         my $self = shift;
 308         my $checked;
 309         $checked->{$_}++ foreach @_;
 310 #       warn "# _checked ",dump($checked);
 311         return $checked;
 312 }
 313
 314 sub _permanent_path {
 315         my $self = shift;
 316         my $path = $self->_param_or_session('path');
 317         $self->app->home->rel_dir('data') . '/' . join('.', $path, @_);
 318 }
 319
 320 sub __unac {
 321         my $n = shift;
 322         $n = unac_string($n);
 323         $n =~ s/\W+/_/g;
 324         return $n;
 325 }
 326
 327 sub _column_from_unac {
 328         my ($self,$name) = @_;
 329
 330         my $stats = $self->_loaded('stats');
 331         my $cols_norm = { map { __unac( $_ ) => $_ } keys %$stats };
 332
 333         $cols_norm->{$name} || die "can't find column $name in ", dump($cols_norm);
 334 }
 335
 336 sub _export_path {
 337         my $self = shift;
 338         my $path = $self->_param_or_session('path');
 339         if ( ! $path ) {
 340                 warn "no path in param or session";
 341                 return;
 342         }
 343         my $dir = $self->app->home->rel_dir('public') . "/export/$path";
 344         mkpath $dir unless -e $dir;
 345         my $name = join('.', map { __unac($_) } @_ );
 346         my $full = $dir . '/' . $name;
 347         $full =~ s/\/+$// if -d $full; # strip trailing slash for dirs
 348         return $full;
 349 }
 350
 351 sub columns {
 352     my $self = shift;
 353
 354         if ( $self->param('columns') ) {
 355                 my @columns = $self->_param_array('columns');
 356                 write_file( $self->_permanent_path( 'columns' ), { binmode => ':utf8' }, map { "$_\n" } @columns );
 357                 $self->redirect_to('/data/items');
 358         }
 359
 360         my $stats = $self->_loaded( 'stats' );
 361
 362         my @columns;
 363         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 364
 365         foreach my $c ( @{ $self->session( 'header' ) } ) {
 366                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 367         }
 368
 369     $self->render(
 370                 message => 'Select columns to display',
 371                 stats => $stats,
 372                 columns => \@columns,
 373                 checked => $self->_checked( $self->_param_array('columns') ),
 374         );
 375 }
 376
 377 sub _param_array {
 378     my ($self,$name) = @_;
 379
 380         my @array = $self->param($name);
 381         my $path  = $self->session('path');
 382
 383         if ( @array ) {
 384                 $self->session($name => [ @array ]);
 385                 $loaded->{$path}->{$name} = [ @array ];
 386         } elsif ( my $session = $self->session($name) ) {
 387                 if ( ref $session eq 'ARRAY' ) {
 388                         @array = @$session;
 389                 } else {
 390                         die "$name not array ",dump($session);
 391                 }
 392         }
 393         #warn "# $name ",dump @array;
 394         return @array;
 395 }
 396
 397 sub _param_scalar {
 398     my ($self,$name,$default) = @_;
 399
 400         my $scalar = $self->param($name);
 401
 402         if ( defined $scalar ) {
 403                 $self->session($name => $scalar);
 404         } else {
 405                 $scalar = $self->session($name);
 406         }
 407
 408         if ( ! defined $scalar ) {
 409                 $scalar = $default;
 410                 die "no default for $name" unless defined $scalar;
 411                 $self->session($name => $scalar);
 412         }
 413
 414         warn "# _param_scalar $name ",dump $scalar;
 415         return $scalar;
 416 }
 417
 418 sub filter {
 419         my $self = shift;
 420
 421         my $name = $self->param('filter_name') || die "name?";
 422         my @vals = $self->param('filter_vals');
 423
 424         $self->_remove_filter( $name );
 425         if ( @vals ) {
 426                 $self->_filter_on_data( $name, @vals );
 427                 if ( my $permanent = $self->param('_permanent') ) {
 428                         my $permanent_path = $self->_export_path( 'filter', $name, $permanent );
 429                         write_file $permanent_path, { binmode => ':utf8' }, map { "$_\n" } @vals;
 430                         warn "permanent filter $permanent_path ", -s $permanent_path;
 431                 }
 432         }
 433
 434         $self->session( 'offset' => 0 );
 435
 436         $self->redirect_to('/data/items');
 437 }
 438
 439 sub _filter_on_data {
 440         my ( $self, $name, @vals ) = @_;
 441
 442         my $path = $self->session('path');
 443
 444         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 445                 warn "filter $name not found in data set";
 446                 return;
 447         }
 448
 449         $filters->{$name} = [ @vals ];
 450         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 451
 452         my $filter_hash;
 453         $filter_hash->{$_}++ foreach @vals;
 454
 455         #warn "# filter_hash ",dump( $filter_hash );
 456
 457         my $items = $self->_loaded('data')->{items};
 458
 459         my $include_missing = defined $filter_hash->{_missing};
 460         my $filtered_items;
 461
 462         foreach my $i ( 0 .. $#$items ) {
 463
 464                 if ( defined $items->[$i]->{$name} ) {
 465                         my $row = $items->[$i]->{$name};
 466                         $row = [ $row ] unless ref $row eq 'ARRAY'; # FIXME probably wrong place
 467                         foreach my $v ( @$row ) {
 468                                 if ( defined $filter_hash->{ $v } ) {
 469                                         $filtered_items->{$i}++;
 470                                 }
 471                         }
 472                 } elsif ( $include_missing ) {
 473                         $filtered_items->{$i}++;
 474                 }
 475         }
 476
 477         #warn "# filter $name ",dump($filtered_items);
 478
 479         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 480         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 481 }
 482
 483
 484 sub _current_filters {
 485         my $self = shift;
 486         my $current_filters;
 487         my $stats = $self->_loaded('stats');
 488
 489         $current_filters->{ $_ } = $filters->{ $_ }
 490                 foreach ( grep { defined $filters->{ $_ } } keys %$stats )
 491         ;
 492         warn "# _current_filters ",dump( keys %$current_filters );
 493         return $current_filters;
 494 }
 495
 496 sub _data_sorted_by {
 497         my ( $self, $order ) = @_;
 498
 499         my $path = $self->session('path');
 500
 501         warn "_data_sorted_by $order from $path";
 502
 503         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 504                 return $loaded->{$path}->{sorted}->{$order};
 505         }
 506
 507         my $data = $self->_loaded( 'data' );
 508         my $numeric = $self->_is_numeric($order);
 509         my $missing = $numeric ? 0 : '';
 510         no warnings qw(numeric);
 511         my $nr = 0;
 512         my @sorted = map {
 513                 $_->[0]
 514         } sort {
 515                 if ( $numeric ) {
 516                         $a->[1] <=> $b->[1]
 517                 } else {
 518                         $a->[1] cmp $b->[1]
 519                 }
 520         } map {
 521                 my $v;
 522                 if ( ! exists $_->{$order} ) {
 523                         $v = $missing;
 524                 } elsif ( ref $_->{$order} eq 'ARRAY' ) {
 525                         $v = join('', @{$_->{$order}});
 526                 } else {
 527                         $v = $_->{$order};
 528                 }
 529                 [ $nr++, $v ]
 530         } @{ $data->{items} }
 531         ;
 532
 533         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 534         #warn "# sorted ",dump( @sorted );
 535
 536         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 537 }
 538
 539
 540 sub __all_filters {
 541         my $order = pop @_;
 542         join(',', sort(@_), 'order', $order);
 543 }
 544
 545 sub items {
 546         my $self = shift;
 547
 548         if ( my $show = $self->param('id') ) {
 549                 $self->param('show', $show);
 550                 warn "show $show\n";
 551         }
 552
 553         my $path = $self->session('path');
 554
 555         my @columns = $self->_param_array('columns');
 556         $self->redirect_to('/data/columns') unless @columns;
 557         my $order   = $self->_param_scalar('order', $columns[0]);
 558         my $sort    = $self->_param_scalar('sort', 'a');
 559         my $offset  = $self->_param_scalar('offset', 0);
 560         my $limit   = $self->_param_scalar('limit', 20);
 561         $self->_param_scalar('show', 'table');
 562
 563         # fix offset when changing limit
 564         $offset = int( $offset / $limit ) * $limit;
 565
 566         if ( ! grep { /^\Q$order\E$/ } @columns ) {
 567                 $order = $columns[0];
 568                 $self->session( order => $order );
 569         }
 570         my $sorted = $self->_data_sorted_by( $order );
 571
 572         my @filter_names;
 573         if ( $filters ) {
 574                 foreach my $name ( keys %$filters ) {
 575                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 576                                 warn "skip filter $name not found in $path\n";
 577                                 next;
 578                         }
 579                         push @filter_names, $name;
 580                 }
 581                 warn "filter_names ",dump( @filter_names );
 582                 foreach my $name ( @filter_names ) {
 583                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 584                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 585                 }
 586         }
 587
 588         my $all_filters = __all_filters( @filter_names,$order );
 589
 590 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 591
 592         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 593
 594                 my $path_filters = $loaded->{$path}->{filters};
 595
 596                 warn "create combined filter for $all_filters from ", $#$sorted + 1, " items\n";
 597
 598                 my @filtered;
 599                 foreach my $i ( 0 .. $#$sorted ) {
 600                         my $pos = $sorted->[$i];
 601
 602                         if ( $#filter_names == -1 ) {
 603                                 push @filtered, $pos;
 604                                 next;
 605                         }
 606
 607                         my $skip = 0;
 608                         foreach ( @filter_names ) {
 609                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 610                         }
 611                         next if $skip;
 612
 613                         push @filtered, $pos;
 614                 }
 615
 616                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 617         }
 618
 619         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 620                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 621
 622         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 623
 624         my $data = $self->_loaded('data');
 625
 626         my $code = $self->_param_scalar('code','');
 627         $code =~ s{[\r\n]+$}{}s;
 628
 629         my $commit = $self->param('commit');
 630         my $test = $self->param('test');
 631
 632         my $commit_changed;
 633
 634         if ( $code && ( $test || $commit ) ) {
 635                 # XXX find columns used in code snippet and show them to user
 636                 my $order = 0;
 637                 foreach my $column ( $code =~ m/\$row->{([^}]+)}/g ) {
 638                         if ( $column =~ s/^(['"])// ) {
 639                                 $column =~ s/$1$//;
 640                         }
 641                         next if $column =~ m/\$/; # hide columns with vars in them
 642                         $commit_changed->{$column} = 0;
 643                 }
 644         }
 645
 646         my $code_path = $self->app->home->rel_dir('public') . "/code";
 647         if ( $commit ) {
 648
 649                 warn "# commit on ", $#$filtered + 1, " items:\n$code\n";
 650                 my $out;
 651                 foreach ( 0 .. $#$filtered ) {
 652                         my $i = $filtered->[$_];
 653                         my $row = $data->{items}->[$i];
 654                         my $update;
 655                         eval $code;
 656                         foreach ( keys %$update ) {
 657                                 $commit_changed->{$_}++;
 658                                 $row->{$_} = $update->{$_};
 659                         }
 660                 }
 661
 662                 $self->_save_change({
 663                         path => $path,
 664                         time => $self->param('time') || time(),
 665                         user => $self->param('user') || $ENV{'LOGNAME'},
 666                         code => $code,
 667                         commit_changed => $commit_changed,
 668                 });
 669
 670                 if ( my $description = $self->param('code_description') ) {
 671                         my $depends = $self->param('code_depends') || die "no code_depends?";
 672                         my $path = "$code_path/$depends.$description.pl";
 673                         if ( -e $path && ! $self->param('overwrite') ) {
 674                                 warn "# code $path not saved\n";
 675                         } else {
 676                                 write_file(  $path, { binmode => ':utf8' }, "$code\n" );
 677                                 warn "code $path ", -s $path, " bytes saved\n";
 678                         }
 679                 }
 680
 681                 # remove console
 682                 $code = '';
 683                 if ( $out ) {
 684                         my $commit_dataset = join('.'
 685                                 , $self->param('code_depends')
 686                                 , $self->param('code_description')
 687                                 , time()
 688                         );
 689                         my $key = $self->param('code_depends');
 690                         $key =~ s/,.+$//;
 691                         $key ||= 'key';
 692                         my $items;
 693                         foreach my $n ( keys %$out ) {
 694                                 my $i = { $key => [ $n ] };
 695                                 my $ref = ref $out->{$n};
 696                                 if ( $ref eq 'HASH' ) {
 697                                         $i->{$_} = [ $out->{$n}->{$_} ] foreach keys %{ $out->{$n} };
 698                                 } elsif ( $ref eq 'ARRAY' ) {
 699                                         $i->{$_} = $out->{$n};
 700                                 } elsif ( ! $ref ) {
 701                                         $i->{value} = [ $out->{$n} ];
 702                                 } else {
 703                                         $i->{_error} = [ dump($out->{$n}) ];
 704                                 }
 705                                 push @$items, $i;
 706                         };
 707                         undef $out;
 708                         my $stats = __stats( $items );
 709                         my @columns = grep { ! m/^\Q$key\E$/ } sort keys %$stats;
 710                         unshift @columns, $key;
 711
 712                         $loaded->{$commit_dataset} = {
 713                                 header => [ @columns ],
 714                                 columns => [ @columns ],
 715                                 mtime => time(),
 716                                 data => { items => $items },
 717                                 stats => $stats,
 718                                 generated => 1,
 719                         };
 720                         warn "# loaded out ", dump( $loaded->{$commit_dataset} );
 721                         $self->session('path', $commit_dataset);
 722                         $self->session('columns', [ @columns ]);
 723                         $self->session('order', $key);
 724                         $self->redirect_to('/data/items');
 725                         return; # FIXME needed to correctly show columns
 726                 }
 727
 728                 # this might move before $out to recalculate stats on source dataset?
 729                 __path_modified( $path, 2 );
 730                 my $c = { map { $_ => 1 } @columns };
 731                 my @added_columns = sort grep { ! $c->{$_} } keys %$commit_changed;
 732                 warn "# added_columns ",dump( @added_columns );
 733                 unshift @columns, @added_columns;
 734
 735                 $self->session('columns', [ @columns ]);
 736                 $loaded->{$path}->{columns} = [ @columns ];
 737                 warn "# new columns ",dump( @columns );
 738
 739                 __invalidate_path_column( $path, $_ ) foreach keys %$commit_changed;
 740         }
 741
 742         my $sorted_items;
 743         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 744         my $test_changed;
 745         my $out;
 746         foreach ( 0 .. $limit ) {
 747                 my $i = $_ + $offset;
 748                 last unless defined $filtered->[$i];
 749                 $i = $from_end - $i if $from_end;
 750                 my $id = $filtered->[$i];
 751                 my $row = Storable::dclone $data->{items}->[ $id ];
 752                 if ( $code && $test ) {
 753                         my $update;
 754                         eval $code;
 755                         if ( $@ ) {
 756                                 warn "ERROR evaling\n$code\n$@";
 757                                 $self->stash('eval_error', $@) if $@;
 758                         } else {
 759                                 warn "EVAL ",dump($update);
 760                                 foreach ( keys %$update ) {
 761                                         $test_changed->{$_}++;
 762                                         $row->{$_} = $update->{$_};
 763                                 }
 764                         }
 765                 }
 766                 $row->{_row_id} ||= $id;
 767                 push @$sorted_items, $row;
 768         }
 769
 770         if ( $self->param('export') ) {
 771                 my $export_path = $self->_export_path( 'items', @columns);
 772                 open(my $fh, '>', $export_path) || warn "ERROR: can't open $export_path: $!";
 773                 foreach my $f ( 0 .. $#$filtered ) {
 774                         print $fh join("\t", map {
 775                                 my $i = $data->{items}->[ $filtered->[$f] ];
 776                                 my $v = '\N';
 777                                 if ( ! defined $i->{$_} ) {
 778                                         # nop
 779                                 } elsif ( ref $i->{$_} eq 'ARRAY' ) {
 780                                         $v =join(',', @{ $i->{$_} });
 781                                         $v = '\N' if length($v) == 0;
 782                                 } else {
 783                                         $v = dump $i->{$_};
 784                                 }
 785                                 $v;
 786                         } @columns),"\n";
 787                 }
 788                 close($fh);
 789                 warn "export $export_path ", -s $export_path, " bytes\n";
 790         }
 791
 792         warn "# test_changed ",dump( $test_changed );
 793         my $c = { map { $_ => 1 } @columns };
 794         my @added_columns = sort grep { ! $c->{$_} } keys %$test_changed;
 795         unshift @columns, @added_columns;
 796
 797         warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 798
 799         my $code_depends = $self->param('code_depends')||
 800         join(',', sort grep { $test_changed->{$_} == 0 } keys %$test_changed );
 801         my $code_description = $self->param('code_description') ||
 802         join(',', @added_columns);
 803
 804         $code_depends ||= $code_description; # self-modifing
 805
 806         warn "# test_changed ",dump( $test_changed, $code_depends, $code_description );
 807
 808         $self->render(
 809                 order => $order,
 810                 offset => $offset,
 811                 limit => $limit,
 812                 sorted => $sorted_items,
 813                 columns => [ @columns ],
 814                 rows => $#$filtered + 1,
 815                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
 816                 unique  => { map { $_, $self->_is_unique( $_) } @columns },
 817                 filters => $self->_current_filters,
 818                 code => $code,
 819                 cols_changed => $commit ? $commit_changed : $test_changed,
 820                 code_depends => $code_depends,
 821                 code_description => $code_description,
 822                 code_path => $code_path,
 823                 out => $out,
 824         );
 825
 826 }
 827
 828
 829 sub order {
 830         my $self = shift;
 831         $self->session('order', $self->param('order'));
 832         $self->session('sort', $self->param('sort'));
 833         $self->redirect_to('/data/items');
 834 }
 835
 836 sub _is_numeric {
 837         my ( $self, $name ) = @_;
 838
 839         my $stats = $self->_loaded( 'stats' );
 840
 841         # sort facet numerically if more >50% elements are numeric
 842         my $count = $stats->{$name}->{count};
 843         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
 844         defined $stats->{$name}->{numeric} &&
 845                 $stats->{$name}->{numeric} > $count / 2;
 846 }
 847
 848 sub _is_unique {
 849         my ( $self, $name ) = @_;
 850         my $stats = $self->_loaded( 'stats' );
 851         defined $stats->{$name}->{unique};
 852 }
 853
 854 sub _remove_filter {
 855         my ($self,$name) = @_;
 856         warn "_remove_filter $name\n";
 857
 858         my $path = $self->session('path');
 859
 860         delete $filters->{$name};
 861         delete $loaded->{$path}->{filters}->{$name};
 862         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
 863
 864         foreach (
 865                         grep { /\Q$name\E/ }
 866                         keys %{ $loaded->{$path}->{filtered} }
 867         ) {
 868                 delete $loaded->{$path}->{filtered}->{$_};
 869                 warn "remove filtered cache $_";
 870         }
 871 }
 872
 873 sub facet {
 874         my $self = shift;
 875
 876         my $path = $self->session('path') || $self->redirect_to( '/data/index' );
 877
 878         if ( my $name = $self->param('remove') ) {
 879                 $self->_remove_filter( $name );
 880                 $self->redirect_to( '/data/items' );
 881         }
 882
 883         my $facet;
 884         my $name = $self->param('name') || die "no name";
 885
 886         my $all = $self->_param_scalar('all', 1);
 887         my $data = $self->_loaded('data');
 888
 889         my $filters = $self->_current_filters;
 890         my $all_filters = __all_filters( keys %$filters,$self->session('order') );
 891         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 892                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 893
 894         if ( ! $filtered || $all ) {
 895                 $filtered = [ 0 .. $#{ $data->{items} } ];
 896                 warn "filter all values\n";
 897         } else {
 898                 warn "filter using $all_filters\n";
 899         }
 900
 901         foreach my $i ( @$filtered ) {
 902                 my $item = $data->{items}->[$i];
 903                 if ( ! exists $item->{$name} ) {
 904                         $facet->{ _missing }++;
 905                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
 906                         $facet->{$_}++ foreach @{ $item->{$name} };
 907                 } else {
 908                         $facet->{ $item->{$name} }++;
 909                 }
 910         }
 911
 912 #       warn "# facet $name ",dump $facet;
 913
 914         my $checked;
 915         my @facet_names =
 916                   $all                      ? keys %$facet
 917                 : defined $filters->{$name} ? @{ $filters->{$name} }
 918                 : keys %$facet;
 919
 920         $checked = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
 921
 922         my $numeric = $self->_is_numeric($name);
 923
 924         my $sort = $self->param('sort');
 925         # sort numeric facets with more than 5 values ascending
 926         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
 927
 928         @facet_names = sort {
 929                 my $result;
 930                 if ( $sort eq 'a' ) {
 931                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
 932                 } elsif ( $sort eq 'd' ) {
 933                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
 934                 } elsif ( $sort eq 'c' ) {
 935                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
 936                 } else {
 937                         warn "unknown sort: $sort";
 938                         $result = $a cmp $b;
 939                 }
 940                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
 941                 $result;
 942         } @facet_names;
 943
 944         $self->render( name => $name, facet => $facet, checked => $checked,
 945                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
 946         );
 947 }
 948
 949
 950 sub __invalidate_path_column {
 951         my ( $path, $name ) = @_;
 952
 953         if ( defined $loaded->{$path}->{sorted}->{$name} ) {
 954                 delete $loaded->{$path}->{sorted}->{$name};
 955                 warn "# invalidate $path sorted $name\n";
 956         }
 957
 958         foreach ( grep { m/\Q$name\E/ } keys %{ $loaded->{$path}->{filtered} } ) {
 959                 delete $loaded->{$path}->{filtered}->{$_};
 960                 warn "# invalidate $path filtered $_\n";
 961         }
 962 }
 963
 964 sub __path_modified {
 965         my ( $path, $value ) = @_;
 966         $value = 1 unless defined $value;
 967
 968         $loaded->{$path}->{modified}  = $value;
 969
 970         warn "# __path_modified $path $value\n";
 971 }
 972
 973 sub _save_change {
 974         my ($self,$change) = @_;
 975
 976         my $change_path = $self->_permanent_path( 'changes' );
 977         mkdir $change_path unless -d $change_path;
 978         $change_path .= '/' . $change->{time};
 979         store $change, $change_path;
 980         utime $change->{time}, $change->{time}, $change_path;
 981         warn "_save_change $change_path ", dump($change);
 982 }
 983
 984 sub edit {
 985         my $self = shift;
 986         my $new_content = $self->param('new_content');
 987         $new_content  ||= $self->param('content'); # backward compatibility with old actions
 988
 989         my $i = $self->param('_row_id');
 990         die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
 991         my $path = $self->param('path') || die "no path";
 992         my $name = $self->param('name') || die "no name";
 993         my $status = 200; # 200 = OK, 201 = Created
 994
 995         my $data = $self->_loaded('data');
 996
 997         if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
 998                 $new_content =~ s/^\s+//s;
 999                 $new_content =~ s/\s+$//s;
1000                 my $v;
1001                 if ( $new_content =~ /\xB6/ ) { # para
1002                         $v = [ split(/\s*\xB6\s*/, $new_content) ];
1003                 } else {
1004                         $v = [ $new_content ];
1005                 }
1006
1007                 my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
1008                 my $new = dump $v;
1009                 if ( $old ne $new
1010                         && ! ( $old eq 'undef' && length($new_content) == 0 ) # new value empty, previous undef
1011                 ) {
1012                         $self->_save_change({
1013                                 path => $path,
1014                                 column => $name,
1015                                 pos => $i,
1016                                 old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
1017                                 new => $v,
1018                                 time => $self->param('time') || time(),
1019                                 user => $self->param('user') || $ENV{'LOGNAME'},
1020                                 unique => {
1021                                         map { $_ => $loaded->{$path}->{data}->{items}->[$i]->{$_}->[0] }
1022                                         grep { defined $loaded->{$path}->{stats}->{$_}->{unique} }
1023                                         keys %{ $loaded->{$path}->{stats} }
1024                                 },
1025                         });
1026
1027                         warn "# change $path $i $old -> $new\n";
1028                         $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
1029
1030                         __invalidate_path_column( $path, $name );
1031
1032                         $status = 201; # created
1033                         # modified = 2 -- force rebuild of stats
1034                         __path_modified( $path, 2 );
1035
1036                         $new_content = join("\xB6",@$v);
1037
1038                 } else {
1039                         warn "# unchanged $path $i $old\n";
1040                         $status = 304;
1041                 }
1042         } else {
1043                 $new_content = "$path $i $name doesn't exist\n";
1044                 $status = 404;
1045         }
1046
1047         warn "# edit $status ", dump $new_content;
1048
1049         $self->render(
1050                 status => $status,
1051                 new_content => scalar $new_content,
1052         );
1053 }
1054
1055
1056 sub save {
1057         my $self = shift;
1058         my $path = $self->_param_or_session('path');
1059         my $dump_path = $self->_save( $path );
1060         __path_modified( $path, 0 );
1061
1062         $self->redirect_to( '/data/items' );
1063 }
1064
1065 sub export {
1066         my $self = shift;
1067
1068         my $dir = $self->app->home->rel_dir('public');
1069
1070         if ( my $import = $self->param('import') ) {
1071
1072                 if ( $import =~ m{/filter\.(.+?)\..+} ) {
1073                         my $name = $self->_column_from_unac( $1 );
1074
1075                         my @vals = map { chomp; $_ }
1076                                 read_file "$dir/export/$import", binmode => ':utf8';
1077
1078                         $self->_remove_filter( $name );
1079                         $self->_filter_on_data( $name, @vals );
1080                         $self->session( 'offset' => 0 );
1081                         $self->redirect_to('/data/items');
1082                 } else {
1083                         warn "UNKNOWN IMPORT $import";
1084                 }
1085         }
1086
1087         if ( my $remove = $self->param('remove') ) {
1088                 my $path = "$dir/export/$remove";
1089                 unlink $path if -e $path;
1090                 $path .= '.png';
1091                 unlink $path if -e $path;
1092         }
1093
1094         my $path = $self->_export_path || $self->redirect_to('/data/index');
1095
1096         my @files = grep { ! /\.png$/ } glob "$path/*";
1097         my $mtime = { map { $_ => (stat($_))[9] } @files };
1098         @files = sort { $mtime->{$b} <=> $mtime->{$a} } @files;
1099         $self->render( export => [ @files ] );
1100 }
1101
1102 sub __loaded_paths {
1103         return
1104                 grep { defined $loaded->{$_}->{data} }
1105                 keys %$loaded;
1106 }
1107
1108 1;