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 $i ( 0 .. $#{$_[0]} ) {
 108                 print STDERR " $i" if $i % 5000;
 109                 my $e = $_[0]->[$i];
 110                 foreach my $n ( keys %$e ) {
 111                         $stats->{$n}->{count}++;
 112                         my @v;
 113                         if ( ref $e->{$n} eq 'ARRAY' ) {
 114                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
 115                                 @v = @{ $e->{$n} };
 116                         } else {
 117                                 @v = ( $e->{$n} );
 118                         }
 119
 120                         foreach my $x ( @v ) {
 121                                 if ( ! defined $x ) { # FIXME really null
 122                                         $stats->{$n}->{empty}++;
 123                                         next;
 124                                 }
 125
 126                                 $stats->{$n}->{numeric}++
 127                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 128                                 $stats->{$n}->{empty}++
 129                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 130                         }
 131
 132                 }
 133         }
 134
 135         foreach my $n ( keys %$stats ) {
 136                 my $s = $stats->{$n};
 137                 next unless defined $s->{array};
 138                 if ( $s->{array} == $s->{count} ) {
 139                         delete $s->{array};
 140                         if ( $s->{count} == $nr_items ) {
 141                                 warn "check $n for uniqeness\n";
 142                                 my $unique;
 143                                 foreach my $e ( @{ $_[0] } ) {
 144                                         if ( ++$unique->{ $e->{$n}->[0] } == 2 ) {
 145                                                 $unique = 0;
 146                                                 last;
 147                                         }
 148                                 }
 149                                 if ( $unique ) {
 150                                         $stats->{$n}->{unique} = 1;
 151                                         #warn "# $n unique ",dump( $unique );
 152                                 }
 153                         }
 154                 }
 155         }
 156
 157         warn "# __stats ",dump($stats);
 158
 159         return $stats;
 160 }
 161
 162 sub _param_or_session {
 163         $_[0]->param( $_[1] ) || $_[0]->session( $_[1] )
 164 }
 165
 166 sub stats {
 167         my $self = shift;
 168         my $path = $self->_param_or_session('path');
 169         warn "stats $path\n";
 170         delete $loaded->{$path}->{stats};
 171         return $self->redirect_to( '/data/columns' );
 172 }
 173
 174
 175 sub _load_path {
 176         my ( $self, $path ) = @_;
 177
 178         return if defined $loaded->{$path}->{generated};
 179
 180         my $full_path = $self->app->home->rel_file( 'data/' . $path );
 181         return $self->redirect_to('/data/index') unless -r $full_path;
 182
 183         my $dump_path = $self->_dump_path( $path );
 184
 185         if ( defined $loaded->{$path}->{data} ) {
 186                 my $mtime = (stat($full_path))[9];
 187                 return if $loaded->{$path}->{mtime} == $mtime;
 188                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
 189         } elsif ( -e $dump_path ) {
 190                 warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
 191                 my $info = retrieve $dump_path;
 192                 $loaded->{ $path } = $info;
 193                 return;
 194         }
 195
 196         my $data;
 197         if ( -f $full_path ) {
 198                 if ( $full_path =~ m/.csv/i ) {
 199                         $data = MojoFacets::Import::CSV->new( full_path => $full_path )->data;
 200                 } elsif ( $full_path =~ m/.sql/i ) {
 201                         $data = MojoFacets::Import::SQL->new( full_path => $full_path )->data;
 202                 } elsif ( $full_path =~ m/.couchdb/i ) {
 203                         $data = MojoFacets::Import::CouchDB->new( full_path => $full_path )->data;
 204                 } elsif ( $full_path =~ m/.storable/ ) {
 205                         warn "open $full_path ", -s $full_path, " bytes";
 206                         open(my $pipe, "<", $full_path) || die $!;
 207                         while ( my $o = eval { Storable::fd_retrieve $pipe } ) {
 208                                 if ( defined $o->{item} ) {
 209                                         push @{ $data->{items} }, $o->{item};
 210                                 } else {
 211                                         warn "SKIP ",dump($o);
 212                                 }
 213                         }
 214                         close($pipe);
 215                         warn "loaded ", $#{ $data->{items} } + 1, " items from $full_path\n";
 216                         $data->{generated}++;
 217                 } else {
 218                         $data = MojoFacets::Import::File->new( full_path => $full_path, path => $path )->data;
 219                 }
 220         } elsif ( -d $full_path && $full_path =~ m/.html/ ) {
 221                 $data = MojoFacets::Import::HTMLTable->new( dir => $full_path )->data;
 222         } else {
 223                 die "can't load $full_path";
 224         }
 225
 226         my @header;
 227
 228         if ( defined $data->{header} ) {
 229                 if ( ref $data->{header} eq 'ARRAY' ) {
 230                         @header = @{ $data->{header} };
 231                 } else {
 232                         warn "header not array ", dump( $data->{header} );
 233                 }
 234         }
 235
 236         my $stats = __stats( $data->{items} );
 237
 238         @header =
 239                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 240                 grep { defined $stats->{$_}->{count} } keys %$stats
 241                 unless @header;
 242
 243         my $info = {
 244                 header => [ @header ],
 245                 stats  => $stats,
 246                 full_path => $full_path,
 247                 size => -s $full_path,
 248                 mtime => (stat($full_path))[9],
 249                 data => $data,
 250                 defined $data->{generated} ? ( generated => 1 ) : (),
 251         };
 252
 253         $loaded->{ $path } = $info;
 254         $self->_save( $path ) unless $info->{generated};
 255
 256 }
 257
 258
 259 sub load {
 260         my $self = shift;
 261
 262         my $path = $self->param('path') || return $self->redirect_to( '/data/index' );
 263
 264         my @paths = $self->param('paths');
 265         warn "# paths ", dump @paths;
 266
 267         foreach my $p ( keys %$loaded ) {
 268                 next if grep { /^\Q$p\E$/ } @paths;
 269                 warn "remove $p from memory\n";
 270                 delete $loaded->{$p};
 271         }
 272
 273         $self->_load_path( $_ ) foreach @paths;
 274
 275         warn "# path $path\n";
 276         $self->_load_path( $path );
 277
 278         $self->session( 'path' => $path );
 279
 280         my $redirect_to = '/data/items';
 281
 282         $self->session( 'header' => $loaded->{$path}->{header} );
 283         if ( ! defined $loaded->{$path}->{columns} ) {
 284                 my $columns_path = $self->_permanent_path( 'columns' );
 285                 if ( -e $columns_path ) {
 286                         my @columns = map { s/[\r\n]+$//; $_ } read_file $columns_path, binmode => ':utf8';
 287                         $loaded->{$path}->{columns} = [ @columns ];
 288                         warn "# columns_path $columns_path ",dump(@columns);
 289                 } else {
 290                         $loaded->{$path}->{columns} = $loaded->{$path}->{header}
 291                 }
 292
 293                 $redirect_to = '/data/columns';
 294         }
 295         $self->session( 'columns' => $loaded->{$path}->{columns} );
 296         $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 297         return $self->redirect_to( $redirect_to );
 298 }
 299
 300
 301 sub _loaded {
 302         my ( $self, $name ) = @_;
 303         my $path = $self->session('path') || $self->param('path');
 304         return $self->redirect_to('/data/index') unless $path;
 305
 306         if ( defined $loaded->{$path}->{modified} && $loaded->{$path}->{modified} > 1 ) {
 307                 my $caller = (caller(1))[3];
 308                 if ( $caller =~ m/::edit/ ) {
 309                         warn "rebuild stats for $path ignored caller $caller\n";
 310                 } else {
 311                         warn "rebuild stats for $path FORCED by modified caller $caller\n";
 312 #                       $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 313                         $loaded->{$path}->{rebuild_stats} = 1;
 314                         $loaded->{$path}->{modified} = 1;
 315                 }
 316         }
 317
 318         if ( defined $loaded->{$path}->{rebuild_stats} ) {
 319                 warn "rebuild_stats $path";
 320                 $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 321                 delete $loaded->{$path}->{rebuild_stats};
 322         }
 323
 324         if ( ! defined $loaded->{$path}->{$name} ) {
 325                 warn "$path $name isn't loaded\n";
 326                 $self->_load_path( $path );
 327                 if ( ! defined $loaded->{$path}->{stats} ) {
 328                         warn "rebuild stats for $path\n";
 329                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 330                 }
 331                 if ( ! defined $loaded->{$path}->{$name} ) {
 332                         warn "MISSING $name for $path\n";
 333                         return $self->redirect_to('/data/index')
 334                 }
 335         }
 336
 337         $self->session( 'modified' => $loaded->{$path}->{modified} );
 338
 339         return $loaded->{$path}->{$name};
 340 }
 341
 342
 343 sub _checked {
 344         my $self = shift;
 345         my $checked;
 346         $checked->{$_}++ foreach @_;
 347 #       warn "# _checked ",dump($checked);
 348         return $checked;
 349 }
 350
 351 sub _permanent_path {
 352         my $self = shift;
 353         my $path = $self->_param_or_session('path');
 354         $self->app->home->rel_dir('data') . '/' . join('.', $path, @_);
 355 }
 356
 357 sub __unac {
 358         my $n = shift;
 359         $n = unac_string($n);
 360         $n =~ s/\W+/_/g;
 361         return $n;
 362 }
 363
 364 sub _column_from_unac {
 365         my ($self,$name) = @_;
 366
 367         my $stats = $self->_loaded('stats');
 368         my $cols_norm = { map { __unac( $_ ) => $_ } keys %$stats };
 369
 370         $cols_norm->{$name} || die "can't find column $name in ", dump($cols_norm);
 371 }
 372
 373 sub _export_path {
 374         my $self = shift;
 375         my $path = $self->_param_or_session('path');
 376         if ( ! $path ) {
 377                 warn "no path in param or session";
 378                 return;
 379         }
 380         my $dir = $self->app->home->rel_dir('public') . "/export/$path";
 381         mkpath $dir unless -e $dir;
 382         my $name = __export_path_name( $path, @_ );
 383         my $full = $dir . '/' . $name;
 384         $full =~ s/\/+$// if -d $full; # strip trailing slash for dirs
 385         return $full;
 386 }
 387
 388 sub __export_path_name {
 389         my $max_length = 80;
 390
 391         my $path = shift;
 392         my $name = join('.', map { __unac($_) } @_ );
 393         if ( length($name) > $max_length ) {
 394                 $name = substr($name,0,$max_length) . Digest::MD5::md5_hex substr($name,$max_length);
 395         }
 396         return $name;
 397 }
 398
 399 sub columns {
 400     my $self = shift;
 401
 402         my $view_path = $self->_permanent_path( 'views' );
 403
 404         if ( $self->param('columns') ) {
 405                 my @columns = $self->_param_array('columns');
 406                 write_file( $self->_permanent_path( 'columns' ), { binmode => ':utf8' }, map { "$_\n" } @columns );
 407                 if ( my $view = $self->param('view') ) {
 408                         mkdir $view_path unless -e $view_path;
 409                         write_file( "$view_path/$view", { binmode => ':utf8' }, map { "$_\n" } @columns );
 410                         warn "view $view_path/$view ", -s "$view_path/$view", " bytes\n";
 411                 }
 412
 413                 return $self->redirect_to('/data/items');
 414
 415         } elsif ( ! $self->session('header') ) {
 416                 return $self->redirect_to('/data/load');
 417         }
 418
 419         if ( my $id = $self->param('id') ) {
 420                 my $view_full = "$view_path/$id";
 421                 if ( -f $view_full ) {
 422                         my @columns = map { chomp; $_ } read_file $view_full, binmode => ':utf8';
 423                         warn "view $view_full loaded ", dump @columns;
 424                         $self->session( 'columns' => [ @columns ] );
 425                         return $self->redirect_to('/data/items');
 426                 }
 427         }
 428
 429         my $stats = $self->_loaded( 'stats' );
 430
 431         my @columns;
 432         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 433
 434         foreach my $c ( @{ $self->session( 'header' ) } ) {
 435                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 436         }
 437
 438         my @views;
 439         if ( -d $view_path ) {
 440                 @views = map { s{^\Q$view_path\E/*}{}; $_ } glob "$view_path/*";
 441                 warn "# views ",dump @views;
 442         }
 443
 444     $self->render(
 445                 message => 'Select columns to display',
 446                 stats => $stats,
 447                 columns => \@columns,
 448                 checked => $self->_checked( $self->_param_array('columns') ),
 449                 views => \@views,
 450         );
 451 }
 452
 453 sub _param_array {
 454     my ($self,$name) = @_;
 455
 456         my @array = $self->param($name);
 457         my $path  = $self->session('path');
 458
 459         if ( @array ) {
 460                 $self->session($name => [ @array ]);
 461                 $loaded->{$path}->{$name} = [ @array ];
 462         } elsif ( my $session = $self->session($name) ) {
 463                 if ( ref $session eq 'ARRAY' ) {
 464                         @array = @$session;
 465                 } else {
 466                         die "$name not array ",dump($session);
 467                 }
 468         }
 469         #warn "# $name ",dump @array;
 470         return @array;
 471 }
 472
 473 sub _param_scalar {
 474     my ($self,$name,$default) = @_;
 475
 476         my $scalar = $self->param($name);
 477
 478         if ( defined $scalar ) {
 479                 $self->session($name => $scalar);
 480         } else {
 481                 $scalar = $self->session($name);
 482         }
 483
 484         if ( ! defined $scalar ) {
 485                 $scalar = $default;
 486                 die "no default for $name" unless defined $scalar;
 487                 $self->session($name => $scalar);
 488         }
 489
 490         warn "# _param_scalar $name ",dump $scalar;
 491         return $scalar;
 492 }
 493
 494 sub filter {
 495         my $self = shift;
 496
 497         my $name = $self->param('filter_name') || die "name?";
 498         my @vals = $self->param('filter_vals');
 499
 500         $self->_remove_filter( $name );
 501         if ( @vals ) {
 502                 $self->_filter_on_data( $name, @vals );
 503                 if ( my $permanent = $self->param('_permanent') ) {
 504                         my $permanent_path = $self->_export_path( 'filter', $name, $permanent );
 505                         write_file $permanent_path, { binmode => ':utf8' }, map { "$_\n" } @vals;
 506                         warn "permanent filter $permanent_path ", -s $permanent_path;
 507                 }
 508         }
 509
 510         $self->session( 'offset' => 0 );
 511
 512         return $self->redirect_to('/data/items');
 513 }
 514
 515 sub _filter_on_data {
 516         my ( $self, $name, @vals ) = @_;
 517
 518         my $path = $self->session('path');
 519
 520         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 521                 warn "filter $name not found in data set";
 522                 return;
 523         }
 524
 525         $filters->{$name} = [ @vals ];
 526         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 527
 528         my $filter_hash;
 529         $filter_hash->{$_}++ foreach @vals;
 530
 531         #warn "# filter_hash ",dump( $filter_hash );
 532
 533         my $items = $self->_loaded('data')->{items};
 534
 535         my $include_missing = defined $filter_hash->{_missing};
 536         my $filtered_items;
 537
 538         foreach my $i ( 0 .. $#$items ) {
 539
 540                 if ( defined $items->[$i]->{$name} ) {
 541                         my $row = $items->[$i]->{$name};
 542                         $row = [ $row ] unless ref $row eq 'ARRAY'; # FIXME probably wrong place
 543                         foreach my $v ( @$row ) {
 544                                 if ( defined $filter_hash->{ $v } ) {
 545                                         $filtered_items->{$i}++;
 546                                 }
 547                         }
 548                 } elsif ( $include_missing ) {
 549                         $filtered_items->{$i}++;
 550                 }
 551         }
 552
 553         #warn "# filter $name ",dump($filtered_items);
 554
 555         # invalidate filters on other datasets
 556         foreach my $dataset ( grep { exists $loaded->{$_}->{filters}->{$name} } keys %$loaded ) {
 557                 delete $loaded->{$dataset}->{filters}->{$name};
 558                 delete $loaded->{$dataset}->{filtered};
 559         }
 560
 561         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 562         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 563 }
 564
 565
 566 sub _current_filters {
 567         my $self = shift;
 568         my $current_filters;
 569         my $stats = $self->_loaded('stats');
 570
 571         $current_filters->{ $_ } = $filters->{ $_ }
 572                 foreach ( grep { defined $filters->{ $_ } } keys %$stats )
 573         ;
 574         warn "# _current_filters ",dump( keys %$current_filters );
 575         return $current_filters;
 576 }
 577
 578 sub _data_sorted_by {
 579         my ( $self, $order ) = @_;
 580
 581         my $path = $self->session('path');
 582
 583         warn "_data_sorted_by $order from $path";
 584
 585         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 586                 return $loaded->{$path}->{sorted}->{$order};
 587         }
 588
 589         my $data = $self->_loaded( 'data' );
 590         my $numeric = $self->_is_numeric($order);
 591         my $missing = $numeric ? 0 : '';
 592         no warnings qw(numeric);
 593         my $nr = 0;
 594         my @sorted = map {
 595                 $_->[0]
 596         } sort {
 597                 if ( $numeric ) {
 598                         $a->[1] <=> $b->[1]
 599                 } else {
 600                         $a->[1] cmp $b->[1]
 601                 }
 602         } map {
 603                 my $v;
 604                 if ( ! exists $_->{$order} ) {
 605                         $v = $missing;
 606                 } elsif ( ref $_->{$order} eq 'ARRAY' ) {
 607                         $v = join('', @{$_->{$order}});
 608                 } else {
 609                         $v = $_->{$order};
 610                 }
 611                 [ $nr++, $v ]
 612         } @{ $data->{items} }
 613         ;
 614
 615         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 616         #warn "# sorted ",dump( @sorted );
 617
 618         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 619 }
 620
 621
 622 sub __all_filters {
 623         my $order = pop @_;
 624         join(',', sort(@_), 'order', $order);
 625 }
 626
 627 our ($out, $key,$value);
 628
 629 our $lookup_path_col;
 630 our $on;
 631
 632 sub __commit_begin {
 633         warn "__commit_begin";
 634         $lookup_path_col = undef;
 635         $on = undef;
 636 }
 637
 638 sub __commit_end {
 639         warn "__commit_end";
 640         $lookup_path_col = undef; # cleanup memory
 641         $on = undef;
 642 }
 643
 644 sub lookup {
 645         warn "# lookup ",dump @_;
 646         my ( $vals, $on_path, $on_col, $code ) = @_;
 647         die "code is not sub{ ... } but ", dump $code unless ref $code eq 'CODE';
 648         my $items = $loaded->{$on_path}->{data}->{items} || die "no items for $on_path";
 649
 650         if ( ! exists $lookup_path_col->{$on_path}->{$on_col} ) {
 651                 warn "create lookup_path_col $on_path $on_col";
 652                 foreach my $i ( 0 .. $#$items ) {
 653                         my $item = $items->[$i];
 654                         if ( exists $item->{$on_col} ) {
 655                                 foreach my $v ( @{ $item->{$on_col} } ) {
 656                                         push @{ $lookup_path_col->{$on_path}->{$on_col}->{$v} }, $i;
 657                                 }
 658                         }
 659                 }
 660                 warn dump $lookup_path_col->{$on_path}->{$on_col};
 661         }
 662
 663         foreach my $v ( @$vals ) {
 664                 foreach my $i ( @{ $lookup_path_col->{$on_path}->{$on_col}->{$v} } ) {
 665                         $on = $items->[$i];
 666                         warn "# lookup code $v $i ",dump $on;
 667                         $code->();
 668                 }
 669         }
 670 }
 671
 672 sub __commit_path_code {
 673         my ( $path, $i, $code, $commit_changed ) = @_;
 674
 675         my $items = $loaded->{$path}->{data}->{items} || die "no items for $path";
 676         my $row = $items->[$i];
 677         my $update;
 678         eval $code;
 679         foreach ( keys %$update ) {
 680                 $$commit_changed->{$_}++;
 681                 $loaded->{$path}->{data}->{items}->[$i]->{$_} = $update->{$_};
 682         }
 683         #warn "__commit_path_code $path $i ",dump( $update );
 684 }
 685
 686 # uses templates/admin.html.ep
 687 sub _switch_dataset {
 688         my $self = shift;
 689
 690         my $datasets;
 691
 692         foreach my $path ( keys %$loaded ) {
 693                 next unless exists $loaded->{$path}->{data};
 694                 push @$datasets, $path;
 695         }
 696
 697         warn "# datasets ",dump($datasets);
 698
 699         $self->stash( 'datasets' => $datasets );
 700 }
 701
 702 sub items {
 703         my $self = shift;
 704
 705         $self->_switch_dataset;
 706
 707         if ( my $show = $self->param('id') ) {
 708                 $self->param('show', $show);
 709                 warn "show $show\n";
 710         }
 711
 712         my $path = $self->_param_scalar('path');
 713
 714         my @columns = $self->_param_array('columns');
 715         return $self->redirect_to('/data/columns') unless @columns;
 716         my $order   = $self->_param_scalar('order', $columns[0]);
 717         my $sort    = $self->_param_scalar('sort', 'a');
 718         my $offset  = $self->_param_scalar('offset', 0);
 719         my $limit   = $self->_param_scalar('limit', 20);
 720         $self->_param_scalar('show', 'table');
 721
 722         # fix offset when changing limit
 723         $offset = int( $offset / $limit ) * $limit;
 724
 725         if ( ! grep { /^\Q$order\E$/ } @columns ) {
 726                 $order = $columns[0];
 727                 $self->session( order => $order );
 728         }
 729         my $sorted = $self->_data_sorted_by( $order );
 730
 731         my @filter_names;
 732         if ( $filters ) {
 733                 foreach my $name ( keys %$filters ) {
 734                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 735                                 warn "skip filter $name not found in $path\n";
 736                                 next;
 737                         }
 738                         push @filter_names, $name;
 739                 }
 740                 warn "filter_names ",dump( @filter_names );
 741                 foreach my $name ( @filter_names ) {
 742                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 743                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 744                 }
 745         }
 746
 747         my $all_filters = __all_filters( @filter_names,$order );
 748
 749 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 750
 751         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 752
 753                 my $path_filters = $loaded->{$path}->{filters};
 754
 755                 warn "create combined filter for $all_filters from ", $#$sorted + 1, " items\n";
 756
 757                 my @filtered;
 758                 foreach my $i ( 0 .. $#$sorted ) {
 759                         my $pos = $sorted->[$i];
 760
 761                         if ( $#filter_names == -1 ) {
 762                                 push @filtered, $pos;
 763                                 next;
 764                         }
 765
 766                         my $skip = 0;
 767                         foreach ( @filter_names ) {
 768                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 769                         }
 770                         next if $skip;
 771
 772                         push @filtered, $pos;
 773                 }
 774
 775                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 776         }
 777
 778         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 779                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 780
 781         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 782
 783         my $data = $self->_loaded('data');
 784
 785         my $code = $self->_param_scalar('code','');
 786         $code =~ s{\r}{}gs;
 787         $code =~ s{\n+$}{\n}s;
 788
 789         my $commit = $self->param('commit');
 790         my $test = $self->param('test');
 791
 792         my $commit_changed;
 793         __commit_begin;
 794
 795         if ( $code && ( $test || $commit ) ) {
 796                 # XXX find columns used in code snippet and show them to user
 797                 my $order = 0;
 798                 foreach my $column ( $code =~ m/\$row->{([^}]+)}/g ) {
 799                         if ( $column =~ s/^(['"])// ) {
 800                                 $column =~ s/$1$//;
 801                         }
 802                         next if $column =~ m/\$/; # hide columns with vars in them
 803                         $commit_changed->{$column} = 0;
 804                 }
 805         }
 806
 807         my $code_path = $self->app->home->rel_dir('public') . "/code";
 808         if ( $commit ) {
 809
 810                 warn "# commit on ", $#$filtered + 1, " items:\n$code\n";
 811                 ( $key, $value, $out ) = ( 'key', 'value' );
 812                 foreach ( 0 .. $#$filtered ) {
 813                         my $i = $filtered->[$_];
 814                         __commit_path_code( $path, $i, $code, \$commit_changed );
 815                 }
 816
 817                 # this might move before $out to recalculate stats on source dataset?
 818                 __path_rebuild_stats( $path );
 819                 my $c = { map { $_ => 1 } @columns };
 820                 my @added_columns = sort grep { ! $c->{$_} } keys %$commit_changed;
 821                 warn "# added_columns ",dump( @added_columns );
 822                 unshift @columns, @added_columns;
 823
 824                 $loaded->{$path}->{columns} = [ @columns ];
 825                 warn "# new columns ",dump( @columns );
 826
 827                 __invalidate_path_column( $path, $_ ) foreach keys %$commit_changed;
 828
 829                 $self->_save_change({
 830                         path => $path,
 831                         time => $self->param('time') || time(),
 832                         user => $self->param('user') || $ENV{'LOGNAME'},
 833                         code => $code,
 834                         commit_changed => $commit_changed,
 835                 });
 836
 837                 if ( my $description = $self->param('code_description') ) {
 838                         my $depends = $self->param('code_depends') || die "no code_depends?";
 839                         my $path = "$code_path/$depends.$description.pl";
 840                         if ( -e $path && ! $self->param('overwrite') ) {
 841                                 warn "# code $path not saved\n";
 842                         } else {
 843                                 write_file(  $path, { binmode => ':utf8' }, "$code\n" );
 844                                 warn "code $path ", -s $path, " bytes saved\n";
 845                         }
 846                 }
 847
 848                 # remove console
 849                 $code = '';
 850                 if ( $out ) {
 851                         my $commit_dataset = join('.'
 852                                 , $self->param('code_depends')
 853                                 , $self->param('code_description')
 854                                 , time()
 855                         );
 856                         $key ||= 'key';
 857                         $value ||= 'value';
 858                         warn "key $key value $value";
 859                         my $items;
 860                         foreach my $n ( keys %$out ) {
 861                                 my $i = { $key => [ $n ] };
 862                                 my $ref = ref $out->{$n};
 863                                 if ( $ref eq 'HASH' ) {
 864                                         $i->{$_} = [ $out->{$n}->{$_} ] foreach keys %{ $out->{$n} };
 865                                 } elsif ( $ref eq 'ARRAY' ) {
 866                                         $i->{$_} = $out->{$n};
 867                                 } elsif ( ! $ref ) {
 868                                         $i->{$value} = [ $out->{$n} ];
 869                                 } else {
 870                                         $i->{_error} = [ dump($out->{$n}) ];
 871                                 }
 872                                 push @$items, $i;
 873                         };
 874                         undef $out;
 875                         my $stats = __stats( $items );
 876                         my @columns = grep { ! m/^\Q$key\E$/ } sort keys %$stats;
 877                         unshift @columns, $key;
 878
 879                         $loaded->{$commit_dataset} = {
 880                                 header => [ @columns ],
 881                                 columns => [ @columns ],
 882                                 mtime => time(),
 883                                 data => { items => $items },
 884                                 stats => $stats,
 885                                 generated => 1,
 886                         };
 887                         warn "# loaded out ", dump( $loaded->{$commit_dataset} );
 888                         $self->session('path', $commit_dataset);
 889                         $self->session('columns', [ @columns ]);
 890                         $self->session('order', $key);
 891                         return $self->redirect_to('/data/items');
 892                 }
 893
 894                 $self->session('columns', [ @columns ]);
 895         }
 896
 897         my $sorted_items;
 898         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 899         my $test_changed;
 900         my ( $key, $value, $out ) = ( 'key', 'value' ); # XXX make local
 901         foreach ( 0 .. $limit ) {
 902                 my $i = $_ + $offset;
 903                 last unless defined $filtered->[$i];
 904                 $i = $from_end - $i if $from_end;
 905                 my $id = $filtered->[$i];
 906                 my $row = Storable::dclone $data->{items}->[ $id ];
 907                 if ( $code && $test ) {
 908                         my $update;
 909                         eval $code;
 910                         if ( $@ ) {
 911                                 warn "ERROR evaling $@", dump($code);
 912                                 $self->stash('eval_error', $@) if $@;
 913                         } else {
 914                                 warn "EVAL ",dump($update);
 915                                 foreach ( keys %$update ) {
 916                                         $test_changed->{$_}++;
 917                                         $row->{$_} = $update->{$_};
 918                                 }
 919                         }
 920                 }
 921                 $row->{_row_id} ||= $id;
 922                 push @$sorted_items, $row;
 923         }
 924
 925         if ( $self->param('export') ) {
 926                 my $export_path = $self->_export_path( 'items', @columns);
 927                 open(my $fh, '>', $export_path) || die "ERROR: can't open $export_path: $!";
 928                 print $fh "#",join("\t",@columns),"\n";
 929                 foreach my $f ( 0 .. $#$filtered ) {
 930                         print $fh join("\t", map {
 931                                 my $i = $data->{items}->[ $filtered->[$f] ];
 932                                 my $v = '\N';
 933                                 if ( ! defined $i->{$_} ) {
 934                                         # nop
 935                                 } elsif ( ref $i->{$_} eq 'ARRAY' ) {
 936                                         $v =join(',', @{ $i->{$_} });
 937                                         $v = '\N' if length($v) == 0;
 938                                 } elsif ( ! ref $i->{$_} ) {
 939                                         $v = $i->{$_};
 940                                 } else {
 941                                         $v = dump $i->{$_};
 942                                 }
 943                                 $v;
 944                         } @columns),"\n";
 945                 }
 946                 close($fh);
 947                 warn "export $export_path ", -s $export_path, " bytes\n";
 948         }
 949
 950         my ( $code_depends, $code_description );
 951
 952         if ( $test ) {
 953
 954                 warn "# test_changed ",dump( $test_changed );
 955                 my $c = { map { $_ => 1 } @columns };
 956                 my @added_columns = sort grep { ! $c->{$_} } keys %$test_changed;
 957                 unshift @columns, @added_columns;
 958
 959                 warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 960
 961                 my $depends_on;
 962                 my $tmp = $code; $tmp =~ s/\$row->{(['"]?)([\w\s]+)\1/$depends_on->{$2}++/gse;
 963                 warn "# depends_on ",dump $depends_on;
 964
 965                 my $test_added = Storable::dclone $test_changed;
 966                 delete $test_added->{$_} foreach keys %$depends_on;
 967
 968                 $code_depends = $self->param('code_depends')
 969                 || join(',', keys %$depends_on);
 970
 971                 $code_description = $self->param('code_description') ||
 972                 join(',', keys %$test_added);
 973
 974                 $code_depends ||= $code_description; # self-modifing
 975                 if ( ! $code_depends && $out ) {
 976                         $code_depends = $key;
 977                         $code_description = $value;
 978                 }
 979
 980                 warn "# test_changed ",dump( $test_changed, $code_depends, $code_description );
 981
 982         } # test?
 983
 984         __commit_end;
 985
 986         $self->render(
 987                 order => $order,
 988                 offset => $offset,
 989                 limit => $limit,
 990                 sorted => $sorted_items,
 991                 columns => [ @columns ],
 992                 rows => $#$filtered + 1,
 993                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
 994                 unique  => { map { $_, $self->_is_unique( $_) } @columns },
 995                 filters => $self->_current_filters,
 996                 code => $code,
 997                 cols_changed => $commit ? $commit_changed : $test_changed,
 998                 code_depends => $code_depends,
 999                 code_description => $code_description,
1000                 code_path => $code_path,
1001                 out => $out,
1002         );
1003
1004 }
1005
1006
1007 sub order {
1008         my $self = shift;
1009         $self->session('order', $self->param('order'));
1010         $self->session('sort', $self->param('sort'));
1011         return $self->redirect_to('/data/items');
1012 }
1013
1014 sub _is_numeric {
1015         my ( $self, $name ) = @_;
1016
1017         my $stats = $self->_loaded( 'stats' );
1018
1019         # sort facet numerically if more >50% elements are numeric
1020         my $count = $stats->{$name}->{count};
1021         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
1022         defined $stats->{$name}->{numeric} &&
1023                 $stats->{$name}->{numeric} > $count / 2;
1024 }
1025
1026 sub _is_unique {
1027         my ( $self, $name ) = @_;
1028         my $stats = $self->_loaded( 'stats' );
1029         defined $stats->{$name}->{unique};
1030 }
1031
1032 sub _remove_filter {
1033         my ($self,$name) = @_;
1034         warn "_remove_filter $name\n";
1035
1036         my $path = $self->session('path');
1037
1038         delete $filters->{$name};
1039         delete $loaded->{$path}->{filters}->{$name};
1040         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
1041
1042         foreach (
1043                         grep { /\Q$name\E/ }
1044                         keys %{ $loaded->{$path}->{filtered} }
1045         ) {
1046                 delete $loaded->{$path}->{filtered}->{$_};
1047                 warn "remove filtered cache $_";
1048         }
1049 }
1050
1051 sub facet {
1052         my $self = shift;
1053
1054         my $path = $self->session('path') || return $self->redirect_to( '/data/index' );
1055
1056         if ( my $name = $self->param('remove') ) {
1057                 $self->_remove_filter( $name );
1058                 return $self->redirect_to( '/data/items' );
1059         }
1060
1061         my $facet;
1062         my $name = $self->param('name') || die "no name";
1063
1064         my $all = $self->_param_scalar('all', 1);
1065         my $data = $self->_loaded('data');
1066
1067         my $filters = $self->_current_filters;
1068         my $all_filters = __all_filters( keys %$filters,$self->session('order') );
1069         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
1070                 if defined $loaded->{$path}->{filtered}->{$all_filters};
1071
1072         if ( ! $filtered || $all ) {
1073                 $filtered = [ 0 .. $#{ $data->{items} } ];
1074                 warn "filter all values\n";
1075         } else {
1076                 warn "filter using $all_filters\n";
1077         }
1078
1079         foreach my $i ( @$filtered ) {
1080                 my $item = $data->{items}->[$i];
1081                 if ( ! exists $item->{$name} || ! defined $item->{$name} ) {
1082                         $facet->{ _missing }++;
1083                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
1084                         $facet->{$_}++ foreach @{ $item->{$name} };
1085                 } else {
1086                         $facet->{ $item->{$name} }++;
1087                 }
1088         }
1089
1090         my $checked_values = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
1091
1092         if ( my $code = $self->param('code') ) {
1093                 my $out;
1094                 foreach my $value ( keys %$facet ) {
1095                         my $count = $facet->{$value};
1096                         my $checked = $checked_values->{$value};
1097                         eval $code;
1098                         if ( $@ ) {
1099                                 $out = $@;
1100                                 warn "ERROR: $@\n$code\n";
1101                                 last;
1102                         } elsif ( $checked != $checked_values->{$value} ) {
1103                                 warn "checked $value $count -> $checked\n";
1104                                 $checked_values->{$value} = $checked;
1105                         }
1106                 }
1107                 warn "out ",dump( $out );
1108                 $self->stash( out => $out );
1109         }
1110
1111 #       warn "# facet $name ",dump $facet;
1112
1113         my @facet_names =
1114                   $all                      ? keys %$facet
1115                 : defined $filters->{$name} ? @{ $filters->{$name} }
1116                 : keys %$facet;
1117
1118         my $numeric = $self->_is_numeric($name);
1119
1120         my $sort = $self->param('sort');
1121         # sort numeric facets with more than 5 values ascending
1122         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
1123
1124         @facet_names = sort {
1125                 my $result;
1126                 if ( $sort eq 'a' ) {
1127                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
1128                 } elsif ( $sort eq 'd' ) {
1129                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
1130                 } elsif ( $sort eq 'c' ) {
1131                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
1132                 } else {
1133                         warn "unknown sort: $sort";
1134                         $result = $a cmp $b;
1135                 }
1136                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
1137                 $result;
1138         } @facet_names;
1139
1140         $self->render( name => $name, facet => $facet, checked => $checked_values,
1141                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
1142         );
1143 }
1144
1145
1146 sub __invalidate_path_column {
1147         my ( $path, $name ) = @_;
1148
1149         if ( defined $loaded->{$path}->{sorted}->{$name} ) {
1150                 delete $loaded->{$path}->{sorted}->{$name};
1151                 warn "# invalidate $path sorted $name\n";
1152         }
1153
1154         foreach ( grep { m/\Q$name\E/ } keys %{ $loaded->{$path}->{filtered} } ) {
1155                 delete $loaded->{$path}->{filtered}->{$_};
1156                 warn "# invalidate $path filtered $_\n";
1157         }
1158 }
1159
1160 sub __path_modified {
1161         my ( $path, $value ) = @_;
1162         $value = 1 unless defined $value;
1163
1164         $loaded->{$path}->{modified}  = $value;
1165
1166         warn "# __path_modified $path $value\n";
1167 }
1168
1169 sub __path_rebuild_stats { $loaded->{ $_[0] }->{rebuild_stats} = 1 };
1170
1171 sub _save_change {
1172         my ($self,$change) = @_;
1173
1174         my $change_path = $self->_permanent_path( 'changes' );
1175         mkdir $change_path unless -d $change_path;
1176         $change_path .= '/' . $change->{time};
1177         store $change, $change_path;
1178         utime $change->{time}, $change->{time}, $change_path;
1179         warn "_save_change $change_path ", dump($change);
1180 }
1181
1182 sub edit {
1183         my $self = shift;
1184         my $new_content = $self->param('new_content');
1185         $new_content  ||= $self->param('content'); # backward compatibility with old actions
1186
1187         my $i = $self->param('_row_id');
1188         die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
1189         my $path = $self->param('path') || die "no path";
1190         my $name = $self->param('name') || die "no name";
1191         my $status = 200; # 200 = OK, 201 = Created
1192
1193         my $data = $self->_loaded('data');
1194
1195         if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
1196                 $new_content =~ s/^\s+//s;
1197                 $new_content =~ s/\s+$//s;
1198                 my $v;
1199                 if ( $new_content =~ /\xB6/ ) { # para
1200                         $v = [ split(/\s*\xB6\s*/, $new_content) ];
1201                 } else {
1202                         $v = [ $new_content ];
1203                 }
1204
1205                 my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
1206                 my $new = dump $v;
1207                 if ( $old ne $new
1208                         && ! ( $old eq 'undef' && length($new_content) == 0 ) # new value empty, previous undef
1209                 ) {
1210                         $self->_save_change({
1211                                 path => $path,
1212                                 column => $name,
1213                                 pos => $i,
1214                                 old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
1215                                 new => $v,
1216                                 time => $self->param('time') || time(),
1217                                 user => $self->param('user') || $ENV{'LOGNAME'},
1218                                 unique => {
1219                                         map { $_ => $loaded->{$path}->{data}->{items}->[$i]->{$_}->[0] }
1220                                         grep { defined $loaded->{$path}->{stats}->{$_}->{unique} }
1221                                         keys %{ $loaded->{$path}->{stats} }
1222                                 },
1223                         });
1224
1225                         warn "# change $path $i $old -> $new\n";
1226                         $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
1227
1228                         __invalidate_path_column( $path, $name );
1229
1230                         $status = 201; # created
1231                         __path_rebuild_stats( $path );
1232
1233                         $new_content = join("\xB6",@$v);
1234
1235                 } else {
1236                         warn "# unchanged $path $i $old\n";
1237                         $status = 304;
1238                 }
1239         } else {
1240                 $new_content = "$path $i $name doesn't exist\n";
1241                 $status = 404;
1242         }
1243
1244         warn "# edit $status ", dump $new_content;
1245
1246         $self->render(
1247                 status => $status,
1248                 new_content => scalar $new_content,
1249         );
1250 }
1251
1252
1253 sub save {
1254         my $self = shift;
1255         my $path = $self->_param_or_session('path');
1256         my $dump_path = $self->_save( $path );
1257         __path_modified( $path, 0 );
1258
1259         return $self->redirect_to( '/data/items' );
1260 }
1261
1262 sub export {
1263         my $self = shift;
1264
1265         my $dir = $self->app->home->rel_dir('public');
1266
1267         if ( my $import = $self->param('import') ) {
1268
1269                 if ( $import =~ m{/filter\.(.+?)\..+} ) {
1270                         my $name = $self->_column_from_unac( $1 );
1271
1272                         my @vals = map { chomp; $_ }
1273                                 read_file "$dir/export/$import", binmode => ':utf8';
1274
1275                         $self->_remove_filter( $name );
1276                         $self->_filter_on_data( $name, @vals );
1277                         $self->session( 'offset' => 0 );
1278                         return $self->redirect_to('/data/items');
1279                 } else {
1280                         warn "UNKNOWN IMPORT $import";
1281                 }
1282         }
1283
1284         if ( my $remove = $self->param('remove') ) {
1285                 my $path = "$dir/export/$remove";
1286                 unlink $path if -e $path;
1287                 $path .= '.png';
1288                 unlink $path if -e $path;
1289         }
1290
1291         my $path = $self->_export_path || return $self->redirect_to('/data/index');
1292
1293         my @files = grep { ! /\.png$/ } glob "$path/*";
1294         my $mtime = { map { $_ => (stat($_))[9] } @files };
1295         @files = sort { $mtime->{$b} <=> $mtime->{$a} } @files;
1296         $self->render( export => [ @files ] );
1297 }
1298
1299 sub __loaded_paths {
1300         return
1301                 grep { defined $loaded->{$_}->{data} }
1302                 keys %$loaded;
1303 }
1304
1305 sub remove {
1306         my $self = shift;
1307         my $path = $self->param('path');
1308         if ( $path =~ m{^/tmp/mojo_facets\.} ) {
1309                 unlink $path;
1310                 warn "# unlink $path";
1311                 if ( my $name = $self->param('name') ) {
1312                         delete $loaded->{$name};
1313                         warn "# remove $name from memory";
1314                 }
1315         } else {
1316                 warn "WARNING: $path unlink ignored";
1317         }
1318         return $self->redirect_to( '/data/load' );
1319 }
1320
1321 1;