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

print ("\n*** Starting PostprocessBuildPlayer ***\n");

my $installPath = $ARGV[0]; 

#values to watch for already existing
my $requiredDeviceCapsString = "UIRequiredDeviceCapabilities";
my $backgroundModesString = "UIBackgroundModes";
my $bluetoothLEString = "bluetooth-le";

#go through the info.plist file line by line until you find this one: 
my $endOfPlist = "</dict>"; 
   
# The type of player built: 
# "dashboard", "standaloneWin32", "standaloneOSXIntel", "standaloneOSXPPC", "standaloneOSXUniversal", "webplayer", "iPhone" 
my $target = $ARGV[1]; 
   
print ("\n*** PostprocessBuildPlayer - Building at '$installPath' with target: $target ***\n"); 
  
################################################################ 
# This modifies info.plist to add the external accessory       # 
# entries                                                      # 
################################################################ 
   
#open this file 
   
$oplistPath = $installPath."/Info.plist"; 
$nplistPath = $installPath."/Info.plist.tmp"; 
   
open OLDPLIST, "<", $oplistPath or die("Cannot open Info.plist"); 
open NEWPLIST, ">", $nplistPath or die("Cannot create new Info.plist"); 
   
my $nextLine = 0;    
my $requiredDeviceCapsFound = 0;
my $backgroundModesFound = 0;

while(<OLDPLIST>) 
{
   if ($nextLine == 1)
   {
      if ($_ =~ m/$bluetoothLEString/)
      {
      }
      else
      {
         $_ =~ s|</array>|\n\t<string>bluetooth-le</string></array>|
      }

      $nextLine = 0;
   }
    
   ################################################################
   # Check for required device caps string already exists         #
   ################################################################ 
   if ($_ =~ m/$requiredDeviceCapsString/ )
   {
      $nextLine = 1;
   }
      
   ################################################################ 
   # Check for background modes string already exists             # 
   ################################################################ 
   if ($_ =~ m/$backgroundModesString/ )
   {
      $backgroundModesFound = 1;
   }
    
   ################################################################ 
   # Add any key/value pairs you want at the end of Info.plist    # 
   ################################################################ 
   
   if ($_ =~ m/$endOfPlist/ && $backgrounModesFound == 0)
   {
      my $keys = "";
          
      $keys .= "   <key>UIBackgroundModes</key>\n";
      $keys .= "   <array>\n";
      $keys .= "      <string>bluetooth-central</string>\n";
      $keys .= "      <string>bluetooth-peripheral</string>\n";
      $keys .= "   </array>\n";
       
      $_ = $keys . $_; 
   } 
       
   print NEWPLIST $_; 
} 
   
close OLDPLIST; 
close NEWPLIST; 
   
`mv \'$nplistPath\' \'$oplistPath\'`;