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#  Licensed to the Apache Software Foundation (ASF) under one
#  or more contributor license agreements.  See the NOTICE file
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#  to you under the Apache License, Version 2.0 (the
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#  
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#**************************************************************




package packager::work;

use packager::exiter;
use packager::existence;
use packager::files;
use packager::globals;

###########################################
# Setting global variables
###########################################

sub set_global_variable
{
	my $compiler = $ENV{'OUTPATH'};
	
	if ( $ENV{'PROEXT'} ) { $compiler = $compiler . $ENV{'PROEXT'}; }

	$packager::globals::compiler = $compiler;	
}

#############################################################################
# Converting a string list with separator $listseparator 
# into an array
#############################################################################

sub convert_stringlist_into_array
{
	my ( $includestringref, $listseparator ) = @_;
	
	my @newarray = ();
	my $first;
	my $last = ${$includestringref};

	while ( $last =~ /^\s*(.+?)\Q$listseparator\E(.+)\s*$/)	# "$" for minimal matching
	{
		$first = $1;
		$last = $2;	
		push(@newarray, "$first");
	}	

	push(@newarray, "$last");	
	
	return \@newarray;
}

###########################################
# Generating a list of package calls
# corresponding to the package list
###########################################

sub create_package_todos
{
	my ( $packagelist ) = @_;
	
	my @targets = ();	# only used, if the build server is not used

	for ( my $i = 0; $i <= $#{$packagelist}; $i++ )
	{
		my $line = ${$packagelist}[$i];
		
		if ( $line =~ /^\s*\#/ ) { next; }	# comment line
		
		if ( $line =~ /^\s*(\w+?)\s+(\S+?)\s+(\S+?)\s+(\w+?)\s*$/ )
		{
			my $product = $1;
			my $compilerlist = $2;
			my $languagelist = $3;
			my $target = $4;

			$product =~ s/\s//g;
			$compilerlist =~ s/\s//g;
			$languagelist =~ s/\s//g;
			$target =~ s/\s//g;
			
			my $compilers = convert_stringlist_into_array(\$compilerlist, ",");
			
			# is the compiler of this "build" part of the compiler list in pack.lst ? 
			
			if ( packager::existence::exists_in_array($packager::globals::compiler, $compilers) )
			{			
				# products are separated in pack.lst by "|"
				
				my $languagesets = convert_stringlist_into_array(\$languagelist, "\|");
			
				# now all information is available to create the targets for the systemcalls
			
				for ( my $j = 0; $j <= $#{$languagesets}; $j++ )
				{
					my $languagestring = ${$languagesets}[$j];
					$languagestring =~ s/\,/\_/g;	# comma in pack.lst becomes "_" in dmake command

					my $target = $target . "_" . $languagestring;
					push(@targets, $target);	

					my $insertline = $target . "\n"; 
					push( @packager::globals::logfileinfo, $insertline);
				}
			}
		}
	}
	
	return \@targets;
}

###########################################
# Executing the generated system calls
###########################################

sub execute_system_calls
{
	my ( $targets ) = @_;

	for ( my $i = 0; $i <= $#{$targets}; $i++ )
	{
		my $systemcall = "dmake " . ${$targets}[$i];

		my $infoline = "Packager: $systemcall\n";
		print $infoline;
		push( @packager::globals::logfileinfo, $infoline);

		my $returnvalue = system($systemcall);

		$infoline = "Packager finished: $systemcall\n";
		print $infoline;
		push( @packager::globals::logfileinfo, $infoline);

		if ( $returnvalue )
		{
			$infoline = "\nERROR: Packager $systemcall\n";
			print $infoline;
			push( @packager::globals::logfileinfo, $infoline);
			if (!($packager::globals::ignoreerrors)) { packager::exiter::exit_program("ERROR: Packing not successful : $systemcall", "execute_system_calls"); }
		}
	}	
}

##############################################################
# Starting the build server with the generated system calls
##############################################################

sub start_build_server
{
	my ( $targets ) = @_;

	# preparing the directory structure

	my $prj = $ENV{PRJ};				# for example "..";
	my $platform = $ENV{INPATH};		# wntmsci10.pro, unxsols4.pro
	my $platformpath = $prj . $packager::globals::separator . $platform;
	if ( ! -d $platformpath ) { packager::files::create_directory($miscpath); }
	my $miscpath = $platformpath  . $packager::globals::separator . "misc";
	if ( ! -d $miscpath ) { packager::files::create_directory($miscpath); }
	$miscpath = $miscpath  . $packager::globals::separator . "temp";
	if ( -d $miscpath ) { packager::files::remove_complete_directory($miscpath); }	# removing old files !
	if ( ! -d $miscpath ) { packager::files::create_directory($miscpath); }

	my $prjroot = ".." . $packager::globals::separator . ".." . $packager::globals::separator . ".." . $packager::globals::separator . ".."; # platform/misc/temp/uniquetempdir

	my $makefilepath = $prj . $packager::globals::separator . "util" . $packager::globals::separator . "makefile.mk";

	if ( ! $ENV{'PRJNAME'} ) { packager::exiter::exit_program("ERROR: Environment variable PRJNAME not set!", "do_broadcast"); }
	my $prjname = $ENV{PRJNAME};

	my $pkgformat = $ENV{PKGFORMAT};

	my $prjdep = $prjname . "\\" . "util";	# always windows like path
    my @targetdirs;
	my @targetlines = ();
	# iterating over all targets
	for ( my $i = 0; $i <= $#{$targets}; $i++ )
	{
		my $target = ${$targets}[$i];
		my $tempdir = $miscpath . $packager::globals::separator . $target;
		$tempdir = packager::files::create_unique_directory ($tempdir);
        @targetlines=();
	    push( @targetlines, "\ngenerated_target : $target\n\n");	# to be included into the makefile.mk

		if ( defined $pkgformat ) {
	    	push( @targetlines, "\n$target : ".'$$@{$(PKGFORMAT:^".")}'."\n\n");	# to be included into the makefile.mk
		}
		
		generate_makefile($tempdir, $makefilepath, $prjroot, $target, \@targetlines);

		do_broadcast($tempdir, $prjname, $prj, $platform, $prjdep);
        push @targetdirs, $tempdir;
	}
}

##############################################################
# Generating the makefile in the temporary directory
##############################################################

sub generate_makefile
{
	my ( $tempdir, $makefilepath, $prjroot, $target, $targetlines_ref ) = @_;

	my $makefile = packager::files::read_file($makefilepath);

	my @targetlines = ();
	push( @targetlines, @{$targetlines_ref});	# to be included into the makefile.mk
	
	$prjroot = $prjroot . "\n";
	
	my $uniquename = $tempdir;
	get_filename_from_path(\$uniquename);
	$uniquename = $uniquename . "\n";

	my $counter = 0;
	my $increase = 1;

	for ( my $i = 0; $i <= $#{$makefile}; $i++ )
	{
		if ( ${$makefile}[$i] =~ /^\s*TARGET\s*=.*/ ) { ${$makefile}[$i] = "TARGET=" . $uniquename; }	# setting the new project root

		if ( ${$makefile}[$i] =~ /^\s*PRJ\s*=.*/ ) { ${$makefile}[$i] = "PRJ=" . $prjroot; }	# setting the new project root

		if ( ${$makefile}[$i] =~ /^\s*\.INCLUDE[\t ]*:[\t ]*target.mk[\t ]*$/ ) { $increase = 0; }	# no more increase of the counter

		if ( $increase ) { $counter++; }
	}
	
	splice(@{$makefile}, $counter, 0, @targetlines);	# including the new target lines at position $counter

	my $newmakefilepath = $tempdir . $packager::globals::separator . "makefile.mk";
	packager::files::save_file($newmakefilepath, $makefile);
}

##############################################################
# Generating the broadcasts for the build server
##############################################################

sub do_broadcast
{
    use  File::Temp;
    
	my ( $tempdir, $prjname, $prj, $platform, $prjdep ) = @_;

	# Syntax:  cmd_bcst -s 18 "Version;Environment;Project;Verzeichnis;Restriction[;Abhaengigkeit1][;Abhaengigkeit n]..." 
	# Example: cmd_bcst -s 18 "SRC680;wntmsci10.pro;instsetoo_native;;instsetoo_native\bla1;instsetoo_native\util"

	if ( ! $ENV{'WORK_STAMP'} ) { packager::exiter::exit_program("ERROR: Environment variable WORK_STAMP not set!", "do_broadcast"); }
	my $workstamp = $ENV{WORK_STAMP};
	my $cwsworkstamp = $ENV{CWS_WORK_STAMP}; 

	my $prjdir = $tempdir;
	$prjdir =~ s/$prj/$prjname/;
	$prjdir =~ s/\//\\/g;					# convert to windows path syntax

    my $tempfiledir = $ENV{TMP};
    $tempfiledir = $tempdir if ( ! defined $tempfiledir );
    my ( $tmpfile_handle, $tmpfile_name ) = mkstemp( $tempfiledir . $packager::globals::separator . "packagerXXXXX");
    if ( ! $tmpfile_handle ) {
        packager::exiter::exit_program("ERROR: Couldn't open temporary file \"$tmpfile_name\"!", "do_broadcast");
    }
    if (defined($cwsworkstamp)) {
        print $tmpfile_handle "\"$cwsworkstamp;$platform;$prjname;$prjdir;nobase;$prjdep\"";
        print "to tmpfile: \"$cwsworkstamp;$platform;$prjname;$prjdir;nobase;$prjdep\"\n";
    }
    else {
        print $tmpfile_handle "\"$workstamp;$platform;$prjname;$prjdir;nobase;$prjdep\"";
        print "to tmpfile: \"$workstamp;$platform;$prjname;$prjdir;nobase;$prjdep\"\n";
    }
    close $tmpfile_handle;
	my $returnvalue = system("cmd_bcst -s 18 \@$tmpfile_name");
	print "cmd_bcst -s 18 \@$tmpfile_name\n";
    unlink "$tmpfile_name";

	if ( $returnvalue )	# an error occurred
	{
		if (!($packager::globals::ignoreerrors)) { packager::exiter::exit_program("ERROR: Packing not successful!", "do_broadcast"); }
	}
}

##############################################################
# Returning the name of file or directory from complete path
##############################################################

sub get_filename_from_path
{
	my ($longfilenameref) = @_;
	
	if ( $packager::globals::isunix )
	{
		if ( $$longfilenameref =~ /^.*\/(\S.+\S?)/ )
		{
			$$longfilenameref = $1;
		}
	}

	if ( $packager::globals::iswin )
	{
		if ( $$longfilenameref =~ /^.*\\(\S.+\S?)/ )
		{
			$$longfilenameref = $1;
		}
	}
}

1;