lib/MojoFacets/Import/File.pm

   1 package MojoFacets::Import::File;
   2
   3 use warnings;
   4 use strict;
   5
   6 use base 'Mojo::Base';
   7
   8 use HTML::TableExtract;
   9 use File::Slurp;
  10 use Data::Dump qw(dump);
  11 use JSON;
  12
  13 __PACKAGE__->attr('path');
  14 __PACKAGE__->attr('full_path');
  15
  16 sub ext { '\.(js(on)?|txt)$' }
  17
  18 sub data {
  19         my $self = shift;
  20
  21         my $path = $self->path;
  22
  23         # we could use Mojo::JSON here, but it's too slow
  24 #       $data = from_json read_file $path;
  25         my $data = read_file $self->full_path;
  26         warn "# data snippet: ", substr($data,0,200);
  27         my @header;
  28         if ( $path =~ m/\.js(on)?/ ) {
  29                 Encode::_utf8_on($data);
  30                 $data = from_json $data;
  31         } elsif ( $path =~ m/\.txt/ ) {
  32                 my @lines = split(/\r?\n/, $data);
  33                 $data = { items => [] };
  34
  35                 my $header_line = shift @lines;
  36                 my $multiline = $header_line =~ s/\^//g;
  37                 @header = split(/\|/, $header_line );
  38                 warn "# header ", dump( @header );
  39                 while ( my $line = shift @lines ) {
  40                         $line =~ s/\^//g;
  41                         chomp $line;
  42                         my @v = split(/\|/, $line);
  43                         while ( @lines && $#v < $#header ) {
  44                                 $line = $lines[0];
  45                                 $line =~ s/\^//g;
  46                                 chomp $line;
  47                                 my @more_v = split(/\|/, $line);
  48                                 if ( $#v + $#more_v > $#header ) {
  49                                         warn "short line: ",dump( @v );
  50                                         last;
  51                                 }
  52                                 shift @lines;
  53                                 $v[ $#v ] .= shift @more_v if @more_v;
  54                                 push @v, @more_v if @more_v;
  55
  56                                 if ( $#v > $#header ) {
  57                                         die "# splice $#header ", dump( @v );
  58                                         @v = splice @v, 0, $#header;
  59                                 }
  60                         }
  61                         my $item;
  62                         foreach my $i ( 0 .. $#v ) {
  63                                 $item->{ $header[$i] || "f_$i" } = [ $v[$i] ];
  64                         }
  65                         push @{ $data->{items} }, $item;
  66                 }
  67         } else {
  68                 warn "file format unknown $path";
  69         }
  70
  71         $data->{header} = [ @header ];
  72
  73         return $data;
  74
  75 }
  76
  77 1