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#  
#  Licensed to the Apache Software Foundation (ASF) under one
#  or more contributor license agreements.  See the NOTICE file
#  distributed with this work for additional information
#  regarding copyright ownership.  The ASF licenses this file
#  to you under the Apache License, Version 2.0 (the
#  "License"); you may not use this file except in compliance
#  with the License.  You may obtain a copy of the License at
#  
#    http://www.apache.org/licenses/LICENSE-2.0
#  
#  Unless required by applicable law or agreed to in writing,
#  software distributed under the License is distributed on an
#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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#  specific language governing permissions and limitations
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#**************************************************************




package pre2par::systemactions;

use File::Copy;
use pre2par::exiter;
use pre2par::globals;

######################################################
# Creating a new direcotory
######################################################

sub create_directory
{
	my ($directory) = @_;
		
	my $returnvalue = 1;
	my $infoline = "";

	if ($directory eq "" )
	{
		return 0;
	}

	if (!(-d $directory))
	{
		$returnvalue = mkdir($directory, 0775);

		if ($returnvalue)
		{
			$infoline = "Created directory: $directory\n"; 
			push(@pre2par::globals::logfileinfo, $infoline);
	
			if ($pre2par::globals::isunix)
			{
				my $localcall = "chmod 775 $directory \>\/dev\/null 2\>\&1";
				system($localcall);
			}			
		}
		else
		{
			# New solution in parallel packing: It is possible, that the directory now exists, although it
			# was not created in this process. There is only an important error, if the directory does not
			# exist now. 
			
			if (!(-d $directory))
			{
				pre2par::exiter::exit_program("Error: Could not create directory: $directory", "create_directory");
			}
			else
			{
				$infoline = "\nAnother process created this directory in exactly this moment :-) : $directory\n"; 
				push(@pre2par::globals::logfileinfo, $infoline);
			}
		}
	}
	else
	{
		$infoline = "\nAlready existing directory, did not create: $directory\n"; 
		push(@pre2par::globals::logfileinfo, $infoline);
	}	
}

#######################################################################
# Creating the directories, in which files are generated or unzipped
#######################################################################

sub create_directories
{
	my ($directory, $languagesref) =@_;
	
	$pre2par::globals::unpackpath =~ s/\Q$pre2par::globals::separator\E\s*$//;	# removing ending slashes and backslashes
	
	my $path = $pre2par::globals::unpackpath;	 # this path already exists
	
	$path = $path . $pre2par::globals::separator . $pre2par::globals::build . $pre2par::globals::separator;
	create_directory($path);

	$path = $path . $pre2par::globals::minor . $pre2par::globals::separator;
	create_directory($path);

	if ($directory eq "unzip" )
	{
		$path = $path . "common" . $pre2par::globals::productextension . $pre2par::globals::separator;
		create_directory($path);

		$path = $path . $directory . $pre2par::globals::separator;
		create_directory($path);
	}
	else
	{
		$path = $path . $pre2par::globals::compiler . $pre2par::globals::productextension . $pre2par::globals::separator;
		create_directory($path);

		$path = $path . $pre2par::globals::product . $pre2par::globals::separator;
		create_directory($path);

		$path = $path . $directory . $pre2par::globals::separator;
		create_directory($path);
		
		if (!($$languagesref eq "" ))	# this will be a path like "01_49", for Profiles and ConfigurationFiles, idt-Files
		{
			$path = $path . $$languagesref . $pre2par::globals::separator;
			create_directory($path);			
		}
	}
	
	$path =~ s/\Q$pre2par::globals::separator\E\s*$//;
	
	return $path;
}

########################
# Copying one file
########################

sub copy_one_file
{
	my ($source, $dest) = @_;

	my ($copyreturn, $returnvalue, $infoline);
	
	$copyreturn = copy($source, $dest);
		
	if ($copyreturn)
	{
		$infoline = "Copy: $source to $dest\n";
		$returnvalue = 1;
	}
	else
	{
		$infoline = "Error: Could not copy $source to $dest\n";
		$returnvalue = 0;
	}
	
	push(@pre2par::globals::logfileinfo, $infoline);
	
	return $returnvalue;
}

##########################################
# Copying all files from one directory
# to another directory
##########################################

sub copy_directory
{
	my ($sourcedir, $destdir) = @_;
	
	my ($onefile, $sourcefile, $destfile);
	my @sourcefiles = ();
	
	$sourcedir =~ s/\Q$pre2par::globals::separator\E\s*$//;
	$destdir =~ s/\Q$pre2par::globals::separator\E\s*$//;

	$infoline = "\n";
	push(@pre2par::globals::logfileinfo, $infoline);
	$infoline = "Copying files from directory $sourcedir to directory $destdir\n";
	push(@pre2par::globals::logfileinfo, $infoline);
	
	opendir(DIR, $sourcedir);
	@sourcefiles = readdir(DIR);
	closedir(DIR);
	
	foreach $onefile (@sourcefiles)
	{
		if ((!($onefile eq ".")) && (!($onefile eq "..")))
		{
			$sourcefile = $sourcedir . $pre2par::globals::separator . $onefile;
			$destfile = $destdir . $pre2par::globals::separator . $onefile;
			if ( -f $sourcefile ) 	# only files, no directories
			{
				copy_one_file($sourcefile, $destfile);
			}
		}
	}
}


1;