package My::Build::Any_wx_config;

use strict;
use My::Build::Utility qw(awx_arch_dir awx_install_arch_dir);

our @ISA = qw(My::Build::Any_wx_config::Base);

our $WX_CONFIG_LIBSEP;
our @LIBRARIES = qw(base net xml adv animate aui core fl gizmos
                    gl html media qa richtext stc xrc);
our @MONO_LIBRARIES = qw(core gl);
our @CONTRIB_LIBRARIES = qw(gizmos_xrc ogl plot svg);
our @CRITICAL  = qw(base core);
our @IMPORTANT = qw(net xml adv aui gl html media richtext stc xrc);

my $initialized;
my( $wx_debug, $wx_unicode, $wx_monolithic );

sub _find {
    my( $name ) = @_;

    return $name if File::Spec->file_name_is_absolute( $name );
    foreach my $dir ( File::Spec->path ) {
        my $abs = File::Spec->catfile( $dir, $name );
        return $abs if -x $abs;
    }

    return $name;
}

sub _init {
    my $build = shift;

    return if $initialized;
    $initialized = 1;

    lib->import( qw(lib inc) );

    my $wx_config =    ( $build && $build->notes( 'wx_config' ) )
                    || $ENV{WX_CONFIG} || 'wx-config';
    my $ver = `$wx_config --version` or die "Can't execute '$wx_config': $!";

    $build->notes( 'wx_config' => _find( $wx_config ) )
        if $build && !$build->notes( 'wx_config' );
    $ver = __PACKAGE__->_version_2_dec( $ver );

    my $base = `$wx_config --basename`;
    $wx_debug = $base =~ m/d$/ ? 1 : 0;
    $wx_unicode = $base =~ m/ud?$/ ? 1 : 0;

    if( $ver >= 2.005001 ) {
        $WX_CONFIG_LIBSEP = `$wx_config --libs base > /dev/null 2>&1 || echo 'X'` eq "X\n" ?
          '=' : ' ';
        $wx_monolithic = `$wx_config --libs${WX_CONFIG_LIBSEP}adv` eq
                         `$wx_config --libs${WX_CONFIG_LIBSEP}core`;
        require My::Build::Any_wx_config_Bakefile;
        @ISA = qw(My::Build::Any_wx_config_Bakefile);
    } else {
        require My::Build::Any_wx_config_Tmake;
        @ISA = qw(My::Build::Any_wx_config_Tmake);
    }

    sub awx_is_debug {
        $_[0]->notes( 'build_wx' )
          ? $_[0]->SUPER::awx_is_debug
          : $wx_debug;
    }
    sub awx_is_unicode {
        $_[0]->notes( 'build_wx' )
          ? $_[0]->SUPER::awx_is_unicode
          : $wx_unicode;
    }
    sub awx_is_monolithic {
        $_[0]->notes( 'build_wx' )
          ? $_[0]->SUPER::awx_is_monolithic
          : $wx_monolithic;
    }
}

package My::Build::Any_wx_config::Base;

use strict;
use base qw(My::Build::Base);
use Fatal qw(chdir mkdir);
use Cwd ();
use Config;
use My::Build::Utility qw(awx_arch_dir awx_install_arch_dir);

sub awx_configure {
    My::Build::Any_wx_config::_init( $_[0] );

    my $self = shift;
    my %config = $self->SUPER::awx_configure;
    my $cf = $self->wx_config( 'cxxflags' );

    $config{prefix} = $self->wx_config( 'prefix' );
    $cf =~ m/__WX(x11|msw|motif|gtk|mac|osx_carbon|osx_cocoa)__/i or
      die "Unable to determine toolkit!";
    $config{config}{toolkit} = lc $1;
    $config{config}{build} = $self->awx_is_monolithic ? 'mono' : 'multi';

    if( $config{config}{toolkit} eq 'gtk' ) {
        $self->wx_config( 'basename' ) =~ m/(gtk2?)/i or
          die 'PANIC: ', $self->wx_config( 'basename' );
        $config{config}{toolkit} = lc $1;
    }

    $config{compiler} = $ENV{CXX} || $self->wx_config( 'cxx' );
    if( $self->awx_debug ) {
        $config{c_flags} .= ' -g ';
    }

    my $cccflags = $self->wx_config( 'cxxflags' );
    my $libs = $self->wx_config( 'libs' );

    foreach ( split /\s+/, $cccflags ) {
        m(^[-/]I) && do { $config{include_path} .= "$_ "; next; };
        m(^[-/]D) && do { $config{defines} .= "$_ "; next; };
        $config{c_flags} .= "$_ ";
    }

    my @paths = ( ( map { s/^-L//; $_ } grep { /^-L/ } split ' ', $libs ),
                  qw(/usr/local/lib /usr/lib /usr/lib64) );

    foreach ( split /\s+/, $libs ) {
        m{^-[lL]|/} && do { $config{link_libraries} .= " $_"; next; };
        if( $_ eq '-pthread' && $^O =~ m/(?:linux|freebsd)/i ) {
            $config{link_libraries} .= " -lpthread";
            next;
        }
        $config{link_libraries} .= " $_";
    }

    my %dlls = %{$self->wx_config( 'dlls' )};
    $config{_libraries} = {};

    while( my( $k, $v ) = each %dlls ) {
        if( @paths ) {
            my $found = 0;
            foreach my $path ( @paths ) {
                $found = 1 if -f File::Spec->catfile( $path, $v->{dll} );
            }
            unless( $found || $self->notes( 'build_wx' ) ) {
                if( grep $_ eq $k, @My::Build::Any_wx_config::CRITICAL ) {
                    warn "'$k' library not found: can't use wxWidgets\n";
                } elsif( grep $_ eq $k, @My::Build::Any_wx_config::IMPORTANT ) {
                    warn "'$k' library not found: some functionality will be missing\n";
                }
                next;
            }
        }

        $config{_libraries}{$k} = $v;
    }

    return %config;
}

sub _call_wx_config {
    My::Build::Any_wx_config::_init( $_[0] );

    my $self = shift;
    my $options = join ' ', map { "--$_" } @_;
    my $wx_config =    $self->notes( 'wx_config' )
                    || $ENV{WX_CONFIG} || 'wx-config';

    # not completely correct, but close
    $options = "--static $options" if $self->awx_static;

    my $t = qx($wx_config $options);
    chomp $t;

    return $t;
}

sub awx_compiler_kind {
    My::Build::Any_wx_config::_init( $_[0] );

    return Alien::wxWidgets::Utility::awx_compiler_kind( $_[1] )
}

sub awx_dlext { $Config{dlext} }

sub _key {
    my $self = shift;
    my $compiler = $ENV{CXX} || $Config{ccname} || $Config{cc};
    my $key = $self->awx_get_name
      ( toolkit          => $self->awx_build_toolkit,
        version          => $self->_version_2_dec
                            ( $self->notes( 'build_data' )->{data}{version} ),
        debug            => $self->awx_is_debug,
        unicode          => $self->awx_is_unicode,
        mslu             => $self->awx_is_mslu,
        # it is unlikely it will ever be required under *nix
        $self->notes( 'build_wx' ) ? () :
        ( compiler         => $self->awx_compiler_kind( $compiler ),
          compiler_version => $self->awx_compiler_version( $compiler )
          ),
      );

    return $key;
}

sub wxwidgets_configure_extra_flags { '' }

sub build_wxwidgets {
    my $self = shift;

    my $extra_flags = $self->wxwidgets_configure_extra_flags;
    my $prefix_dir = $self->_key;
    my $prefix = awx_install_arch_dir( $self, $prefix_dir );
    my $opengl = $self->notes( 'build_wx_opengl' );
    my $args = sprintf '--with-%s %s--disable-compat24',
                       $self->awx_build_toolkit,
                       $opengl ? '--with-opengl ' : '';
    my $unicode = $self->awx_is_unicode ? 'enable' : 'disable';
    my $debug = $self->awx_is_debug ? 'enable' : 'disable';
    my $monolithic = $self->awx_is_monolithic ? 'enable' : 'disable';
    my $universal = $self->awx_is_universal ? 'enable' : 'disable';
    my $dir = $self->notes( 'build_data' )->{data}{directory};
    my $cmd = "echo exit | " . # for OS X 10.3...
              "sh ../configure --prefix=$prefix $args --$unicode-unicode"
            . " --$debug-debug --$monolithic-monolithic"
            . " --$universal-universal_binary $extra_flags";
    my $old_dir = Cwd::cwd;

    chdir $dir;

    # do not reconfigure unless necessary
    mkdir 'bld' unless -d 'bld';
    chdir 'bld';
    # print $cmd, "\n";
    $self->_system( $cmd ) unless -f 'Makefile';
    $self->_system( 'make all' );
    if( $self->notes( 'build_data' )->{data}{version} !~ /^2.9/ ) {
        chdir 'contrib/src/stc';
        $self->_system( 'make all' );
    }

    chdir $old_dir;
}

sub massage_environment {
    my( $self ) = shift;

    if( $self->notes( 'build_wx' ) ) {
        my $wxc = File::Spec->rel2abs
                    ( File::Spec->catfile
                      ( $self->notes( 'build_data' )->{data}{directory},
                        'bld', 'wx-config' ) );
        # find the real and non-inplace wx-config
        while( -l $wxc ) {
            my $to = readlink $wxc;
            my( $vol, $dir, $file ) = File::Spec->splitpath( $wxc );
            $wxc = File::Spec->catfile( $dir, $to );
        }
        $wxc =~ s{/inplace-([^/]+)$}{/$1};
        $ENV{WX_CONFIG} = $wxc;
    }
}

sub install_wxwidgets { }

sub install_system_wxwidgets {
    my( $self ) = shift;

    return unless $self->notes( 'build_wx' );

    my $dir = $self->notes( 'build_data' )->{data}{directory};
    my $old_dir = Cwd::cwd;
    my $destdir = $self->destdir ? ' DESTDIR=' . $self->destdir : '';

    chdir $dir;

    chdir 'bld';
    $self->_system( 'make install' . $destdir );
    if( $self->notes( 'build_data' )->{data}{version} !~ /^2.9/ ) {
        chdir 'contrib/src/stc';
        $self->_system( 'make install' . $destdir );
    }

    chdir $old_dir;
}

sub awx_build_toolkit { 'gtk' }

1;