use strict;
use warnings;
use Test::More;
use File::Temp qw(tempdir);
use File::Spec;
use Cwd;
use Config;

plan tests => 24;

use local::lib ();

sub mk_temp_dir
{
    my $name_template = shift;

    my $path = tempdir($name_template, DIR => Cwd::abs_path('t'), CLEANUP => 1);
    local::lib->ensure_dir_structure_for($path);
    # On Win32 the path where the distribution is built usually contains
    # spaces. This is a problem for some parts of the CPAN toolchain, so
    # local::lib uses the GetShortPathName trick do get an alternate
    # representation of the path that doesn't constain spaces.
    return ($^O eq 'MSWin32')
         ? Win32::GetShortPathName($path)
	 : $path
}

my $dir1 = mk_temp_dir('test_local_lib-XXXXX');
my $dir2 = mk_temp_dir('test_local_lib-XXXXX');

my ($dir1_arch, $dir2_arch) = map { File::Spec->catfile($_, qw'lib perl5', $Config{archname}) } $dir1, $dir2;
note $dir1_arch;
note $dir2_arch;


my $prev_active = () = local::lib->active_paths;

local::lib->import($dir1);
is +() = local::lib->active_paths, $prev_active + 1, 'one active path';
like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir1/, 'added one dir in root';
like $ENV{PERL5LIB}, qr/\Q$dir1/, 'added one dir in lib';
note $ENV{PERL5LIB};
unlike $ENV{PERL5LIB}, qr/\Q$dir1_arch/, 'no arch in PERL5LIB';
like $ENV{PERL_MM_OPT}, qr/\Q$dir1/, 'first path is installation target';

local::lib->import($dir1);
is +() = local::lib->active_paths, $prev_active + 1, 'still one active path after adding it twice';

local::lib->import($dir2);
is +() = local::lib->active_paths, $prev_active + 2, 'two active paths';
like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir2/, 'added another dir in root';
like $ENV{PERL5LIB}, qr/\Q$dir2/, 'added another dir in lib';
unlike $ENV{PERL5LIB}, qr/\Q$dir2_arch/, 'no arch in PERL5LIB';
like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir1/, 'first dir is still in root';
like $ENV{PERL5LIB}, qr/\Q$dir1/, 'first dir is still in lib';
unlike $ENV{PERL5LIB}, qr/\Q$dir1_arch/, 'no arch in PERL5LIB';
like $ENV{PERL_MM_OPT}, qr/\Q$dir2/, 'second path is installation target';

local::lib->import($dir1);
my @active = local::lib->active_paths;
is @active, $prev_active + 2, 'still two active dirs after re-adding first';
is $active[-1], $dir1, 'first dir was re-added on top';
like $ENV{PERL_MM_OPT}, qr/\Q$dir1/, 'first path is installation target again';

local::lib->import('--deactivate', $dir2);
unlike $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir2/, 'second dir was removed from root';
unlike $ENV{PERL5LIB}, qr/\Q$dir2/, 'second dir was removed from lib';
unlike $ENV{PERL5LIB}, qr/\Q$dir2_arch/, 'no arch in PERL5LIB';
like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir1/, q{first dir didn't go away from root};
like $ENV{PERL5LIB}, qr/\Q$dir1/, q{first dir didn't go away from lib};
unlike $ENV{PERL5LIB}, qr/\Q$dir1_arch/, 'no arch in PERL5LIB';
like $ENV{PERL_MM_OPT}, qr/\Q$dir1/, 'first dir stays installation target';