#!/usr/bin/perl
use strict;
use autodie;
use warnings;
use File::Compare;
use File::Basename;
no warnings 'once';

foreach my $file (@ARGV) {
  if (-e $file) {
    my $data = process_file($file);
    open(MYOUTPUTFILE, "+>$file.bak") or die "Error opening output file $!";
    print MYOUTPUTFILE $data;
    close(MYOUTPUTFILE);
    if (compare($file, "$file.bak") != 0) {
      print "Processed $file\n";
    }
    unlink $file;
    rename "$file.bak", $file;
  }
  
}
sub process_file {
  my($filename) = "$_[0]";
  open(MYINPUTFILE, "<$filename") or die "x $!";
  my($data) = "";
  while(<MYINPUTFILE>) {
    s/\s*$//;
    my($line) = $_;
    if($line !~ /^\s*$/) {
      $data = $data . "$line\n";
    }
  }
  close(MYINPUTFILE);
  chomp($data);
  if ($data !~ /^\s*\/\*\*/) {
    my $basename = basename($filename);
    $data = "/**\n * \@file $basename\n * \@author Austen Adler (agadler)\n * TODO: Description\n */\n$data";
  }
  return $data;
}
#sub process_comment {
#  # The data string
#  my $data = $_[0];
#  # Is the author line in there?
#  my $author = 0;
#  # Is the description there?
#  my $desc = 0;
#  # Is the first name there?
#  my $fname = 0;
#  # Are we still in the top comment area?
#  my $incomment = 1;
#  # If there is no top comment in the beginning, add the base comment
#  if ($data !~ /^\s*\/\*\*/) {
#    $data = "/**\n * \@file $filename\n * \@author Austen Adler (agadler)\n * TODO: Description\n */\n$data";
#    $author = 1;
#    $desc = 1;
#    $fname = 1;
#  } else {
#    # Otherwise process an existing comment
#    while ($incomment) {
#      if (/\s*\*\//) {
#        $incomment = 0;
#      } elsif (/\s*\* \@author/) {
#      } elsif (/\s*\* \@file $filename/) {
#      } elsif (/\s*\* \@author/) {
#      }
#    }
#    
#  }
#  return $data;
#}