#!/usr/bin/perl 
use File::Copy;

# ocrIt

##Copyright (c) 2009, The University of Alabama Libraries. 
## Contributed by Jody DeRidder, 11/17/09.
##All rights reserved.

##Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

##    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
##    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the 
##       distribution.
##    * Neither the name of The University of Alabama Libraries nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

##THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
##THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR ##CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
##PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
##LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
##EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# jody DeRidder, 11/17/09

# given a set of collection names
# goes through /srv/archive
# finds tiff files
# checks to see if OCR files for this already exist in /srv/www/htdocs/content
# if not, creates directories for them there
# creates derivatives
# puts the derivatives there


# altered to chmod and chown the content directories so scripts run by MU and DS to distribute MODS will work

# check links at http://libcontent1.lib.ua.edu/content/

@colls = ("u0002_0000002", "u0002_0000006", "u0003_0001328", "u0003_0000520", "u0003_0000633", "u0004_0000001", "u0008_0000001");  #, "u0008_0000003");

# location hardcoded here:
$inbase = "/srv/archive/";
$outbase = "/srv/www/htdocs/content/";


foreach $coll (@colls){
    ($adir = $coll) =~ s,\_,\/,g;  # substitute forward slash for underscores
    push (@dirlist, $inbase.$adir);
    }    

foreach $dir (@dirlist){
  opendir (DIR, $dir) or die "can't look through $dir\n";
  while ($file = readdir(DIR)){
#   print "looking at $file in $dir\n";
   if ($file =~ /^\./ ){ next;  }  # skip dot files
   if ($file =~ /^[a-z]{1}\d{4}/ || $file =~ /Transcripts/ || $file =~ /^\d{3,7}$/){ 
  # if ($file =~ /^[a-z]{1}\d{4}/ || $file =~ /\d{3,7}/ )  # not using Transcripts directories
          # must match pattern u0003, p0004,(etc) 3-7 numbers, etc
     $path = $dir."/".$file;
     if ( -d $path){   # must be a directory
        push (@dirlist, $path);
        }
     elsif ($file =~ /^(.*)\.tif/){  # tif file
 
       $filenum = $1;

       # here, capture the path.
       ($newdir = $dir) =~ s,archive,www\/htdocs\/content,;
       $newdir .= "/Transcripts";
       print "$file from $dir to $newdir\n";

 # create the path in the new location if it doesn't exist
       if (! -e $newdir){ `mkdir -p $newdir`;}
 
       # create the derivatives if they don't exist
# name them appropriately and put them in the new location

       $ocr = $newdir."/".$filenum.".ocr";

       if (! -e $ocr){ 
           $val = `tesseract $path $ocr`;
           if ($val){ print "ERROR $val creating $ocr.txt\n";}
           else {print "created $ocr.txt\n";}
           }

         }

      }
    }
  close(DIR);
  }

# clean up
`chown -R taloewald:www $outbase`;
`chmod -R 775 $outbase`;