#line 1
package Module::Install::Makefile;

use strict 'vars';
use Module::Install::Base;
use ExtUtils::MakeMaker ();

use vars qw{$VERSION $ISCORE @ISA};

BEGIN {
  $VERSION = '0.68';
  $ISCORE  = 1;
  @ISA     = qw{Module::Install::Base};
}

sub Makefile { $_[0] }

my %seen = ();

sub prompt {
  shift;

  # Infinite loop protection
  my @c = caller();
  if ( ++$seen{"$c[1]|$c[2]|$_[0]"} > 3 ) {
    die "Caught an potential prompt infinite loop ($c[1]|$c[2]|$_[0])";
  }

  # In automated testing, always use defaults
  if ( $ENV{AUTOMATED_TESTING} and !$ENV{PERL_MM_USE_DEFAULT} ) {
    local $ENV{PERL_MM_USE_DEFAULT} = 1;
    goto &ExtUtils::MakeMaker::prompt;
  }
  else {
    goto &ExtUtils::MakeMaker::prompt;
  }
}

sub makemaker_args {
  my $self = shift;
  my $args = ( $self->{makemaker_args} ||= {} );
  %$args = ( %$args, @_ ) if @_;
  $args;
}

# For mm args that take multiple space-seperated args,
# append an argument to the current list.
sub makemaker_append {
  my $self = sShift;
  my $name = shift;
  my $args = $self->makemaker_args;
  $args->{name}
   = defined $args->{$name}
   ? join( ' ', $args->{name}, @_ )
   : join( ' ', @_ );
}

sub build_subdirs {
  my $self = shift;
  my $subdirs = $self->makemaker_args->{DIR} ||= [];
  for my $subdir ( @_ ) {
    push @$subdirs, $subdir;
  }
}

sub clean_files {
  my $self = shift;
  my $clean = $self->makemaker_args->{clean} ||= {};
  %$clean
   = ( %$clean, FILES => join( ' ', grep length, $clean->{FILES}, @_ ),
   );
}

sub realclean_files {
  my $self = shift;
  my $realclean = $self->makemaker_args->{realclean} ||= {};
  %$realclean = (
    %$realclean,
    FILES => join( ' ', grep length, $realclean->{FILES}, @_ ),
  );
}

sub libs {
  my $self = shift;
  my $libs = ref $_[0] ? shift : [shift];
  $self->makemaker_args( LIBS => $libs );
}

sub inc {
  my $self = shift;
  $self->makemaker_args( INC => shift );
}

my %test_dir = ();

sub _wanted_t {
  /\.t$/ and -f $_ and $test_dir{$File::Find::dir} = 1;
}

sub tests_recursive {
  my $self = shift;
  if ( $self->tests ) {
    die "tests_recursive will not work if tests are already defined";
  }
  my $dir = shift || 't';
  unless ( -d $dir ) {
    die "tests_recursive dir '$dir' does not exist";
  }
  require File::Find;
  %test_dir = ();
  File::Find::find( \&_wanted_t, $dir );
  $self->tests( join ' ', map { "$_/*.t" } sort keys %test_dir );
}

sub write {
  my $self = shift;
  die "&Makefile->write() takes no arguments\n" if @_;

  my $args = $self->makemaker_args;
  $args->{DISTNAME} = $self->name;
  $args->{NAME} 
   = $self->module_name
   || $self->name
   || $self->determine_NAME( $args );
  $args->{VERSION} = $self->version
   || $self->determine_VERSION( $args );
  $args->{NAME} =~ s/-/::/g;
  if ( $self->tests ) {
    $args->{test} = { TESTS => $self->tests };
  }
  if ( $] >= 5.005 ) {
    $args->{ABSTRACT} = $self->abstract;
    $args->{AUTHOR}   = $self->author;
  }
  if ( eval( $ExtUtils::MakeMaker::VERSION ) >= 6.10 ) {
    $args->{NO_META} = 1;
  }
  if ( eval( $ExtUtils::MakeMaker::VERSION ) > 6.17 and $self->sign ) {
    $args->{SIGN} = 1;
  }
  unless ( $self->is_admin ) {
    delete $args->{SIGN};
  }

  # merge both kinds of requires into prereq_pm
  my $prereq = ( $args->{PREREQ_PM} ||= {} );
  %$prereq = (
    %$prereq,
    map  { @$_ }
     map { @$_ }
     grep $_,
    ( $self->build_requires, $self->requires )
  );

  # merge both kinds of requires into prereq_pm
  my $subdirs = ( $args->{DIR} ||= [] );
  if ( $self->bundles ) {
    foreach my $bundle ( @{ $self->bundles } ) {
      my ( $file, $dir ) = @$bundle;
      push @$subdirs, $dir if -d $dir;
      delete $prereq->{$file};
    }
  }

  if ( my $perl_version = $self->perl_version ) {
    eval "use $perl_version; 1"
     or die "ERROR: perl: Version $] is installed, "
     . "but we need version >= $perl_version";
  }

  $args->{INSTALLDIRS} = $self->installdirs;

  my %args = map { ( $_ => $args->{$_} ) }
   grep { defined( $args->{$_} ) } keys %$args;

  my $user_preop = delete $args{dist}->{PREOP};
  if ( my $preop = $self->admin->preop( $user_preop ) ) {
    $args{dist} = $preop;
  }

  my $mm = ExtUtils::MakeMaker::WriteMakefile( %args );
  $self->fix_up_makefile( $mm->{FIRST_MAKEFILE} || 'Makefile' );
}

sub fix_up_makefile {
  my $self          = shift;
  my $makefile_name = shift;
  my $top_class     = ref( $self->_top ) || '';
  my $top_version   = $self->_top->VERSION || '';

  my $preamble
   = $self->preamble
   ? "# Preamble by $top_class $top_version\n" . $self->preamble
   : '';
  my $postamble = "# Postamble by $top_class $top_version\n"
   . ( $self->postamble || '' );

  local *MAKEFILE;
  open MAKEFILE, "< $makefile_name"
   or die "fix_up_makefile: Couldn't open $makefile_name: $!";
  my $makefile = do { local $/; <MAKEFILE> };
  close MAKEFILE or die $!;

  $makefile =~ s/\b(test_harness\(\$\(TEST_VERBOSE\), )/$1'inc', /;
  $makefile =~ s/( -I\$\(INST_ARCHLIB\))/ -Iinc$1/g;
  $makefile =~ s/( "-I\$\(INST_LIB\)")/ "-Iinc"$1/g;
  $makefile =~ s/^(FULLPERL = .*)/$1 "-Iinc"/m;
  $makefile =~ s/^(PERL = .*)/$1 "-Iinc"/m;

  # Module::Install will never be used to build the Core Perl
  # Sometimes PERL_LIB and PERL_ARCHLIB get written anyway, which breaks
  # PREFIX/PERL5LIB, and thus, install_share. Blank them if they exist
  $makefile =~ s/^PERL_LIB = .+/PERL_LIB =/m;
  #$makefile =~ s/^PERL_ARCHLIB = .+/PERL_ARCHLIB =/m;

# Perl 5.005 mentions PERL_LIB explicitly, so we have to remove that as well.
  $makefile =~ s/("?)-I\$\(PERL_LIB\)\1//g;

  # XXX - This is currently unused; not sure if it breaks other MM-users
  # $makefile =~ s/^pm_to_blib\s+:\s+/pm_to_blib :: /mg;

  open MAKEFILE, "> $makefile_name"
   or die "fix_up_makefile: Couldn't open $makefile_name: $!";
  print MAKEFILE "$preamble$makefile$postamble" or die $!;
  close MAKEFILE or die $!;

  1;
}

sub preamble {
  my ( $self, $text ) = @_;
  $self->{preamble} = $text . $self->{preamble} if defined $text;
  $self->{preamble};
}

sub postamble {
  my ( $self, $text ) = @_;
  $self->{postamble} ||= $self->admin->postamble;
  $self->{postamble} .= $text if defined $text;
  $self->{postamble};
}

1;

__END__

#line 363