package Solution;

#
# Package that encapsulates a Visual C++ solution file generation
#
# src/tools/msvc/Solution.pm
#
use Carp;
use strict;
use warnings;
use VSObjectFactory;

sub _new
{
	my $classname = shift;
	my $options   = shift;
	my $self      = {
		projects => {},
		options  => $options,
		numver   => '',
		strver   => '',
		vcver    => undef,
		platform => undef, };
	bless($self, $classname);

	# integer_datetimes is now the default
	$options->{integer_datetimes} = 1
	  unless exists $options->{integer_datetimes};
	$options->{float4byval} = 1
	  unless exists $options->{float4byval};
	if ($options->{xml})
	{
		if (!($options->{xslt} && $options->{iconv}))
		{
			die "XML requires both XSLT and ICONV\n";
		}
	}
	$options->{blocksize} = 8
	  unless $options->{blocksize};    # undef or 0 means default
	die "Bad blocksize $options->{blocksize}"
	  unless grep { $_ == $options->{blocksize} } (1, 2, 4, 8, 16, 32);
	$options->{segsize} = 1
	  unless $options->{segsize};      # undef or 0 means default
	 # only allow segsize 1 for now, as we can't do large files yet in windows
	die "Bad segsize $options->{segsize}"
	  unless $options->{segsize} == 1;
	$options->{wal_blocksize} = 8
	  unless $options->{wal_blocksize};    # undef or 0 means default
	die "Bad wal_blocksize $options->{wal_blocksize}"
	  unless grep { $_ == $options->{wal_blocksize} }
		  (1, 2, 4, 8, 16, 32, 64);
	$options->{wal_segsize} = 16
	  unless $options->{wal_segsize};      # undef or 0 means default
	die "Bad wal_segsize $options->{wal_segsize}"
	  unless grep { $_ == $options->{wal_segsize} } (1, 2, 4, 8, 16, 32, 64);

	$self->DeterminePlatform();

	return $self;
}

sub DeterminePlatform
{
	my $self = shift;

	# Examine CL help output to determine if we are in 32 or 64-bit mode.
	$self->{platform} = 'Win32';
	open(P, "cl /? 2>&1 |") || die "cl command not found";
	while (<P>)
	{
		if (/^\/favor:<.+AMD64/)
		{
			$self->{platform} = 'x64';
			last;
		}
	}
	close(P);
	print "Detected hardware platform: $self->{platform}\n";
}

# Return 1 if $oldfile is newer than $newfile, or if $newfile doesn't exist.
# Special case - if config.pl has changed, always return 1
sub IsNewer
{
	my ($newfile, $oldfile) = @_;
	if (   $oldfile ne 'src\tools\msvc\config.pl'
		&& $oldfile ne 'src\tools\msvc\config_default.pl')
	{
		return 1
		  if (-f 'src\tools\msvc\config.pl')
		  && IsNewer($newfile, 'src\tools\msvc\config.pl');
		return 1
		  if (-f 'src\tools\msvc\config_default.pl')
		  && IsNewer($newfile, 'src\tools\msvc\config_default.pl');
	}
	return 1 if (!(-e $newfile));
	my @nstat = stat($newfile);
	my @ostat = stat($oldfile);
	return 1 if ($nstat[9] < $ostat[9]);
	return 0;
}

# Copy a file, *not* preserving date. Only works for text files.
sub copyFile
{
	my ($src, $dest) = @_;
	open(I, $src)     || croak "Could not open $src";
	open(O, ">$dest") || croak "Could not open $dest";
	while (<I>)
	{
		print O;
	}
	close(I);
	close(O);
}

sub GenerateFiles
{
	my $self = shift;
	my $bits = $self->{platform} eq 'Win32' ? 32 : 64;

	# Parse configure.in to get version numbers
	open(C, "configure.in")
	  || confess("Could not open configure.in for reading\n");
	while (<C>)
	{
		if (/^AC_INIT\(\[PostgreSQL\], \[([^\]]+)\]/)
		{
			$self->{strver} = $1;
			if ($self->{strver} !~ /^(\d+)\.(\d+)(?:\.(\d+))?/)
			{
				confess "Bad format of version: $self->{strver}\n";
			}
			$self->{numver} = sprintf("%d%02d%02d", $1, $2, $3 ? $3 : 0);
			$self->{majorver} = sprintf("%d.%d", $1, $2);
		}
	}
	close(C);
	confess "Unable to parse configure.in for all variables!"
	  if ($self->{strver} eq '' || $self->{numver} eq '');

	if (IsNewer(
			"src\\include\\pg_config_os.h", "src\\include\\port\\win32.h"))
	{
		print "Copying pg_config_os.h...\n";
		copyFile("src\\include\\port\\win32.h",
			"src\\include\\pg_config_os.h");
	}

	if (IsNewer(
			"src\\include\\pg_config.h", "src\\include\\pg_config.h.win32"))
	{
		print "Generating pg_config.h...\n";
		open(I, "src\\include\\pg_config.h.win32")
		  || confess "Could not open pg_config.h.win32\n";
		open(O, ">src\\include\\pg_config.h")
		  || confess "Could not write to pg_config.h\n";
		while (<I>)
		{
			s{PG_VERSION "[^"]+"}{PG_VERSION "$self->{strver}"};
			s{PG_VERSION_NUM \d+}{PG_VERSION_NUM $self->{numver}};
s{PG_VERSION_STR "[^"]+"}{__STRINGIFY(x) #x\n#define __STRINGIFY2(z) __STRINGIFY(z)\n#define PG_VERSION_STR "PostgreSQL $self->{strver}, compiled by Visual C++ build " __STRINGIFY2(_MSC_VER) ", $bits-bit"};
			print O;
		}
		print O "#define PG_MAJORVERSION \"$self->{majorver}\"\n";
		print O "#define LOCALEDIR \"/share/locale\"\n"
		  if ($self->{options}->{nls});
		print O "/* defines added by config steps */\n";
		print O "#ifndef IGNORE_CONFIGURED_SETTINGS\n";
		print O "#define USE_ASSERT_CHECKING 1\n"
		  if ($self->{options}->{asserts});
		print O "#define USE_INTEGER_DATETIMES 1\n"
		  if ($self->{options}->{integer_datetimes});
		print O "#define USE_LDAP 1\n"   if ($self->{options}->{ldap});
		print O "#define HAVE_LIBZ 1\n"  if ($self->{options}->{zlib});
		print O "#define USE_SSL 1\n"    if ($self->{options}->{openssl});
		print O "#define ENABLE_NLS 1\n" if ($self->{options}->{nls});

		print O "#define BLCKSZ ", 1024 * $self->{options}->{blocksize}, "\n";
		print O "#define RELSEG_SIZE ",
		  (1024 / $self->{options}->{blocksize}) *
		  $self->{options}->{segsize} *
		  1024, "\n";
		print O "#define XLOG_BLCKSZ ",
		  1024 * $self->{options}->{wal_blocksize}, "\n";
		print O "#define XLOG_SEG_SIZE (", $self->{options}->{wal_segsize},
		  " * 1024 * 1024)\n";

		if ($self->{options}->{float4byval})
		{
			print O "#define USE_FLOAT4_BYVAL 1\n";
			print O "#define FLOAT4PASSBYVAL true\n";
		}
		else
		{
			print O "#define FLOAT4PASSBYVAL false\n";
		}
		if ($self->{options}->{float8byval})
		{
			print O "#define USE_FLOAT8_BYVAL 1\n";
			print O "#define FLOAT8PASSBYVAL true\n";
		}
		else
		{
			print O "#define FLOAT8PASSBYVAL false\n";
		}

		if ($self->{options}->{uuid})
		{
			print O "#define HAVE_UUID_H\n";
		}
		if ($self->{options}->{xml})
		{
			print O "#define HAVE_LIBXML2\n";
			print O "#define USE_LIBXML\n";
		}
		if ($self->{options}->{xslt})
		{
			print O "#define HAVE_LIBXSLT\n";
			print O "#define USE_LIBXSLT\n";
		}
		if ($self->{options}->{krb5})
		{
			print O "#define ENABLE_GSS 1\n";
		}
		if (my $port = $self->{options}->{"--with-pgport"})
		{
			print O "#undef DEF_PGPORT\n";
			print O "#undef DEF_PGPORT_STR\n";
			print O "#define DEF_PGPORT $port\n";
			print O "#define DEF_PGPORT_STR \"$port\"\n";
		}
		print O "#define VAL_CONFIGURE \""
		  . $self->GetFakeConfigure() . "\"\n";
		print O "#endif /* IGNORE_CONFIGURED_SETTINGS */\n";
		close(O);
		close(I);
	}

	if (IsNewer(
			"src\\include\\pg_config_ext.h",
			"src\\include\\pg_config_ext.h.win32"))
	{
		print "Copying pg_config_ext.h...\n";
		copyFile(
			"src\\include\\pg_config_ext.h.win32",
			"src\\include\\pg_config_ext.h");
	}

	$self->GenerateDefFile(
		"src\\interfaces\\libpq\\libpqdll.def",
		"src\\interfaces\\libpq\\exports.txt",
		"LIBPQ");
	$self->GenerateDefFile(
		"src\\interfaces\\ecpg\\ecpglib\\ecpglib.def",
		"src\\interfaces\\ecpg\\ecpglib\\exports.txt",
		"LIBECPG");
	$self->GenerateDefFile(
		"src\\interfaces\\ecpg\\compatlib\\compatlib.def",
		"src\\interfaces\\ecpg\\compatlib\\exports.txt",
		"LIBECPG_COMPAT");
	$self->GenerateDefFile(
		"src\\interfaces\\ecpg\\pgtypeslib\\pgtypeslib.def",
		"src\\interfaces\\ecpg\\pgtypeslib\\exports.txt",
		"LIBPGTYPES");

	if (IsNewer(
			'src\backend\utils\fmgrtab.c', 'src\include\catalog\pg_proc.h'))
	{
		print "Generating fmgrtab.c and fmgroids.h...\n";
		chdir('src\backend\utils');
		system(
"perl -I ../catalog Gen_fmgrtab.pl ../../../src/include/catalog/pg_proc.h");
		chdir('..\..\..');
	}
	if (IsNewer(
			'src\include\utils\fmgroids.h',
			'src\backend\utils\fmgroids.h'))
	{
		copyFile('src\backend\utils\fmgroids.h',
			'src\include\utils\fmgroids.h');
	}

	if (IsNewer('src\include\utils\probes.h', 'src\backend\utils\probes.d'))
	{
		print "Generating probes.h...\n";
		system(
'psed -f src\backend\utils\Gen_dummy_probes.sed src\backend\utils\probes.d > src\include\utils\probes.h'
		);
	}

	if ($self->{options}->{python}
		&& IsNewer(
			'src\pl\plpython\spiexceptions.h',
			'src\include\backend\errcodes.txt'))
	{
		print "Generating spiexceptions.h...\n";
		system(
'perl src\pl\plpython\generate-spiexceptions.pl src\backend\utils\errcodes.txt > src\pl\plpython\spiexceptions.h'
		);
	}

	if (IsNewer(
			'src\include\utils\errcodes.h',
			'src\backend\utils\errcodes.txt'))
	{
		print "Generating errcodes.h...\n";
		system(
'perl src\backend\utils\generate-errcodes.pl src\backend\utils\errcodes.txt > src\backend\utils\errcodes.h'
		);
		copyFile('src\backend\utils\errcodes.h',
			'src\include\utils\errcodes.h');
	}

	if (IsNewer(
			'src\pl\plpgsql\src\plerrcodes.h',
			'src\backend\utils\errcodes.txt'))
	{
		print "Generating plerrcodes.h...\n";
		system(
'perl src\pl\plpgsql\src\generate-plerrcodes.pl src\backend\utils\errcodes.txt > src\pl\plpgsql\src\plerrcodes.h'
		);
	}

	if (IsNewer(
			'src\backend\utils\sort\qsort_tuple.c',
			'src\backend\utils\sort\gen_qsort_tuple.pl'))
	{
		print "Generating qsort_tuple.c...\n";
		system(
'perl src\backend\utils\sort\gen_qsort_tuple.pl > src\backend\utils\sort\qsort_tuple.c'
		);
	}

	if (IsNewer(
			'src\interfaces\libpq\libpq.rc',
			'src\interfaces\libpq\libpq.rc.in'))
	{
		print "Generating libpq.rc...\n";
		my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
		  localtime(time);
		my $d = ($year - 100) . "$yday";
		open(I, '<', 'src\interfaces\libpq\libpq.rc.in')
		  || confess "Could not open libpq.rc.in";
		open(O, '>', 'src\interfaces\libpq\libpq.rc')
		  || confess "Could not open libpq.rc";
		while (<I>)
		{
			s/(VERSION.*),0/$1,$d/;
			print O;
		}
		close(I);
		close(O);
	}

	if (IsNewer('src\bin\psql\sql_help.h', 'src\bin\psql\create_help.pl'))
	{
		print "Generating sql_help.h...\n";
		chdir('src\bin\psql');
		system("perl create_help.pl ../../../doc/src/sgml/ref sql_help");
		chdir('..\..\..');
	}

	if (IsNewer(
			'src\interfaces\ecpg\preproc\preproc.y',
			'src\backend\parser\gram.y'))
	{
		print "Generating preproc.y...\n";
		chdir('src\interfaces\ecpg\preproc');
		system('perl parse.pl < ..\..\..\backend\parser\gram.y > preproc.y');
		chdir('..\..\..\..');
	}

	if (IsNewer(
			'src\interfaces\ecpg\include\ecpg_config.h',
			'src\interfaces\ecpg\include\ecpg_config.h.in'))
	{
		print "Generating ecpg_config.h...\n";
		open(O, '>', 'src\interfaces\ecpg\include\ecpg_config.h')
		  || confess "Could not open ecpg_config.h";
		print O <<EOF;
#if (_MSC_VER > 1200)
#define HAVE_LONG_LONG_INT_64
#define ENABLE_THREAD_SAFETY 1
EOF
		print O "#define USE_INTEGER_DATETIMES 1\n"
		  if ($self->{options}->{integer_datetimes});
		print O "#endif\n";
		close(O);
	}

	unless (-f "src\\port\\pg_config_paths.h")
	{
		print "Generating pg_config_paths.h...\n";
		open(O, '>', 'src\port\pg_config_paths.h')
		  || confess "Could not open pg_config_paths.h";
		print O <<EOF;
#define PGBINDIR "/bin"
#define PGSHAREDIR "/share"
#define SYSCONFDIR "/etc"
#define INCLUDEDIR "/include"
#define PKGINCLUDEDIR "/include"
#define INCLUDEDIRSERVER "/include/server"
#define LIBDIR "/lib"
#define PKGLIBDIR "/lib"
#define LOCALEDIR "/share/locale"
#define DOCDIR "/doc"
#define HTMLDIR "/doc"
#define MANDIR "/man"
EOF
		close(O);
	}

	my $mf = Project::read_file('src\backend\catalog\Makefile');
	$mf =~ s{\\s*[\r\n]+}{}mg;
	$mf =~ /^POSTGRES_BKI_SRCS\s*:?=[^,]+,(.*)\)$/gm
	  || croak "Could not find POSTGRES_BKI_SRCS in Makefile\n";
	my @allbki = split /\s+/, $1;
	foreach my $bki (@allbki)
	{
		next if $bki eq "";
		if (IsNewer(
				'src/backend/catalog/postgres.bki',
				"src/include/catalog/$bki"))
		{
			print "Generating postgres.bki and schemapg.h...\n";
			chdir('src\backend\catalog');
			my $bki_srcs = join(' ../../../src/include/catalog/', @allbki);
			system(
"perl genbki.pl -I../../../src/include/catalog --set-version=$self->{majorver} $bki_srcs"
			);
			chdir('..\..\..');
			copyFile(
				'src\backend\catalog\schemapg.h',
				'src\include\catalog\schemapg.h');
			last;
		}
	}

	open(O, ">doc/src/sgml/version.sgml")
	  || croak "Could not write to version.sgml\n";
	print O <<EOF;
<!ENTITY version "$self->{strver}">
<!ENTITY majorversion "$self->{majorver}">
EOF
	close(O);
}

sub GenerateDefFile
{
	my ($self, $deffile, $txtfile, $libname) = @_;

	if (IsNewer($deffile, $txtfile))
	{
		print "Generating $deffile...\n";
		open(I, $txtfile)    || confess("Could not open $txtfile\n");
		open(O, ">$deffile") || confess("Could not open $deffile\n");
		print O "LIBRARY $libname\nEXPORTS\n";
		while (<I>)
		{
			next if (/^#/);
			next if (/^\s*$/);
			my ($f, $o) = split;
			print O " $f @ $o\n";
		}
		close(O);
		close(I);
	}
}

sub AddProject
{
	my ($self, $name, $type, $folder, $initialdir) = @_;

	my $proj =
	  VSObjectFactory::CreateProject($self->{vcver}, $name, $type, $self);
	push @{ $self->{projects}->{$folder} }, $proj;
	$proj->AddDir($initialdir) if ($initialdir);
	if ($self->{options}->{zlib})
	{
		$proj->AddIncludeDir($self->{options}->{zlib} . '\include');
		$proj->AddLibrary($self->{options}->{zlib} . '\lib\zdll.lib');
	}
	if ($self->{options}->{openssl})
	{
		$proj->AddIncludeDir($self->{options}->{openssl} . '\include');
		$proj->AddLibrary(
			$self->{options}->{openssl} . '\lib\VC\ssleay32.lib', 1);
		$proj->AddLibrary(
			$self->{options}->{openssl} . '\lib\VC\libeay32.lib', 1);
	}
	if ($self->{options}->{nls})
	{
		$proj->AddIncludeDir($self->{options}->{nls} . '\include');
		$proj->AddLibrary($self->{options}->{nls} . '\lib\libintl.lib');
	}
	if ($self->{options}->{krb5})
	{
		$proj->AddIncludeDir($self->{options}->{krb5} . '\inc\krb5');
		$proj->AddLibrary($self->{options}->{krb5} . '\lib\i386\krb5_32.lib');
		$proj->AddLibrary(
			$self->{options}->{krb5} . '\lib\i386\comerr32.lib');
		$proj->AddLibrary(
			$self->{options}->{krb5} . '\lib\i386\gssapi32.lib');
	}
	if ($self->{options}->{iconv})
	{
		$proj->AddIncludeDir($self->{options}->{iconv} . '\include');
		$proj->AddLibrary($self->{options}->{iconv} . '\lib\iconv.lib');
	}
	if ($self->{options}->{xml})
	{
		$proj->AddIncludeDir($self->{options}->{xml} . '\include');
		$proj->AddLibrary($self->{options}->{xml} . '\lib\libxml2.lib');
	}
	if ($self->{options}->{xslt})
	{
		$proj->AddIncludeDir($self->{options}->{xslt} . '\include');
		$proj->AddLibrary($self->{options}->{xslt} . '\lib\libxslt.lib');
	}
	return $proj;
}

sub Save
{
	my ($self) = @_;
	my %flduid;

	$self->GenerateFiles();
	foreach my $fld (keys %{ $self->{projects} })
	{
		foreach my $proj (@{ $self->{projects}->{$fld} })
		{
			$proj->Save();
		}
	}

	open(SLN, ">pgsql.sln") || croak "Could not write to pgsql.sln\n";
	print SLN <<EOF;
Microsoft Visual Studio Solution File, Format Version $self->{solutionFileVersion}
# $self->{visualStudioName}
EOF

	foreach my $fld (keys %{ $self->{projects} })
	{
		foreach my $proj (@{ $self->{projects}->{$fld} })
		{
			print SLN <<EOF;
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "$proj->{name}", "$proj->{name}$proj->{filenameExtension}", "$proj->{guid}"
EndProject
EOF
		}
		if ($fld ne "")
		{
			$flduid{$fld} = Win32::GuidGen();
			print SLN <<EOF;
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "$fld", "$fld", "$flduid{$fld}"
EndProject
EOF
		}
	}

	print SLN <<EOF;
Global
	GlobalSection(SolutionConfigurationPlatforms) = preSolution
		Debug|$self->{platform}= Debug|$self->{platform}
		Release|$self->{platform} = Release|$self->{platform}
	EndGlobalSection
	GlobalSection(ProjectConfigurationPlatforms) = postSolution
EOF

	foreach my $fld (keys %{ $self->{projects} })
	{
		foreach my $proj (@{ $self->{projects}->{$fld} })
		{
			print SLN <<EOF;
		$proj->{guid}.Debug|$self->{platform}.ActiveCfg = Debug|$self->{platform}
		$proj->{guid}.Debug|$self->{platform}.Build.0  = Debug|$self->{platform}
		$proj->{guid}.Release|$self->{platform}.ActiveCfg = Release|$self->{platform}
		$proj->{guid}.Release|$self->{platform}.Build.0 = Release|$self->{platform}
EOF
		}
	}

	print SLN <<EOF;
	EndGlobalSection
	GlobalSection(SolutionProperties) = preSolution
		HideSolutionNode = FALSE
	EndGlobalSection
	GlobalSection(NestedProjects) = preSolution
EOF

	foreach my $fld (keys %{ $self->{projects} })
	{
		next if ($fld eq "");
		foreach my $proj (@{ $self->{projects}->{$fld} })
		{
			print SLN "\t\t$proj->{guid} = $flduid{$fld}\n";
		}
	}

	print SLN <<EOF;
	EndGlobalSection
EndGlobal
EOF
	close(SLN);
}

sub GetFakeConfigure
{
	my $self = shift;

	my $cfg = '--enable-thread-safety';
	$cfg .= ' --enable-cassert' if ($self->{options}->{asserts});
	$cfg .= ' --enable-integer-datetimes'
	  if ($self->{options}->{integer_datetimes});
	$cfg .= ' --enable-nls' if ($self->{options}->{nls});
	$cfg .= ' --with-ldap'  if ($self->{options}->{ldap});
	$cfg .= ' --without-zlib' unless ($self->{options}->{zlib});
	$cfg .= ' --with-openssl'   if ($self->{options}->{ssl});
	$cfg .= ' --with-ossp-uuid' if ($self->{options}->{uuid});
	$cfg .= ' --with-libxml'    if ($self->{options}->{xml});
	$cfg .= ' --with-libxslt'   if ($self->{options}->{xslt});
	$cfg .= ' --with-gssapi'    if ($self->{options}->{krb5});
	$cfg .= ' --with-tcl'       if ($self->{options}->{tcl});
	$cfg .= ' --with-perl'      if ($self->{options}->{perl});
	$cfg .= ' --with-python'    if ($self->{options}->{python});

	return $cfg;
}

package VS2005Solution;

#
# Package that encapsulates a Visual Studio 2005 solution file
#

use strict;
use warnings;
use base qw(Solution);

sub new
{
	my $classname = shift;
	my $self      = $classname->SUPER::_new(@_);
	bless($self, $classname);

	$self->{solutionFileVersion} = '9.00';
	$self->{vcver}               = '8.00';
	$self->{visualStudioName}    = 'Visual Studio 2005';

	return $self;
}

package VS2008Solution;

#
# Package that encapsulates a Visual Studio 2008 solution file
#

use strict;
use warnings;
use base qw(Solution);

sub new
{
	my $classname = shift;
	my $self      = $classname->SUPER::_new(@_);
	bless($self, $classname);

	$self->{solutionFileVersion} = '10.00';
	$self->{vcver}               = '9.00';
	$self->{visualStudioName}    = 'Visual Studio 2008';

	return $self;
}

package VS2010Solution;

#
# Package that encapsulates a Visual Studio 2010 solution file
#

use Carp;
use strict;
use warnings;
use base qw(Solution);

sub new
{
	my $classname = shift;
	my $self      = $classname->SUPER::_new(@_);
	bless($self, $classname);

	$self->{solutionFileVersion} = '11.00';
	$self->{vcver}               = '10.00';
	$self->{visualStudioName}    = 'Visual Studio 2010';

	return $self;
}

package VS2012Solution;

#
# Package that encapsulates a Visual Studio 2012 solution file
#

use Carp;
use strict;
use warnings;
use base qw(Solution);

sub new
{
	my $classname = shift;
	my $self      = $classname->SUPER::_new(@_);
	bless($self, $classname);

	$self->{solutionFileVersion} = '12.00';
	$self->{vcver}               = '11.00';
	$self->{visualStudioName}    = 'Visual Studio 2012';

	return $self;
}

1;