BEGIN {
    unshift @INC, 't/lib';
}

use strict;
use Test::More;
BEGIN {
  eval { require CPAN::Meta; CPAN::Meta->VERSION(2.143240) }
    or plan skip_all => 'CPAN::Meta 2.143240 required for this test';
  eval { require CPAN::Meta::Converter; }
    or plan skip_all => 'CPAN::Meta::Converter required for this test';
  eval { require Parse::CPAN::Meta; }
    or plan skip_all => 'Parse::CPAN::Meta required for this test';
}
use Data::Dumper;
use File::Temp;
use Cwd;
use MakeMaker::Test::Utils;

plan tests => 31;
require ExtUtils::MM_Any;

sub mymeta_ok {
    my($have, $want, $name) = @_;
    local $Test::Builder::Level = $Test::Builder::Level + 1;
    my $have_gen = delete $have->{generated_by};
    my $want_gen = delete $want->{generated_by};
    my $have_url = delete $have->{'meta-spec'}->{url};
    my $want_url = delete $want->{'meta-spec'}->{url};
    is_deeply $have, $want, $name;
    like $have_gen, qr{CPAN::Meta}, "CPAN::Meta mentioned in the generated_by";
    like $have_url, qr{CPAN::Meta::Spec}, "CPAN::Meta::Spec mentioned in meta-spec URL";
    return;
}

my $new_mm = sub {
    return bless { ARGS => {@_}, @_ }, 'ExtUtils::MM_Any';
};
my @METASPEC14 = (
    'meta-spec'  => {
        url => 'http://module-build.sourceforge.net/META-spec-v1.4.html',
        version => 1.4
    },
);
my @METASPEC20 = (
    'meta-spec'  => {
        url => 'https://metacpan.org/pod/CPAN::Meta::Spec',
        version => 2
    },
);
my @REQ20 = (
    configure => { requires => { 'ExtUtils::MakeMaker' => 0, }, },
    build => { requires => { 'ExtUtils::MakeMaker' => 0, }, },
);
my @GENERIC_IN = (
    DISTNAME => 'Foo-Bar',
    VERSION  => 1.23,
    PM       => { "Foo::Bar" => 'lib/Foo/Bar.pm', },
);
my @GENERIC_OUT = (
    # mandatory
    abstract          => 'unknown',
    author            => [qw(unknown)],
    dynamic_config    => 1,
    generated_by      => "ExtUtils::MakeMaker version $ExtUtils::MakeMaker::VERSION",
    license           => ['unknown'],
    @METASPEC20,
    name              => 'Foo-Bar',
    release_status    => 'stable',
    version           => 1.23,
    # optional
    no_index          => { directory => [qw(t inc)], },
);

{
    my $mm = $new_mm->(@GENERIC_IN);
    is_deeply $mm->metafile_data, {
        @GENERIC_OUT,
        prereqs => { @REQ20, },
    };
    is_deeply $mm->metafile_data({}, { no_index => { directory => [qw(foo)] } }), {
        @GENERIC_OUT,
        prereqs => { @REQ20, },
        no_index        => { directory => [qw(t inc foo)], },
    }, 'rt.cpan.org 39348';
}

{
    my $mm = $new_mm->(
        DISTNAME        => 'Foo-Bar',
        VERSION         => 1.23,
        AUTHOR          => ['Some Guy'],
        PREREQ_PM       => { Foo => 2.34, Bar => 4.56, },
    );
    is_deeply $mm->metafile_data(
        {
            configure_requires => { Stuff   => 2.34 },
            wobble      => 42
        },
        {
            no_index    => { package => "Thing" },
            wibble      => 23
        },
    ),
    {
        @GENERIC_OUT, # some overridden, which is fine
        author          => ['Some Guy'],
        prereqs => {
            @REQ20,
            configure => { requires => { Stuff => 2.34, }, },
            runtime => { requires => { Foo => 2.34, Bar => 4.56, }, },
        },
        no_index        => {
            directory           => [qw(t inc)],
            package             => ['Thing'],
        },
        x_wibble  => 23,
        x_wobble  => 42,
    }, '_add vs _merge';
}

# Test MIN_PERL_VERSION meta-spec 1.4
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        MIN_PERL_VERSION => 5.006,
    );
    is_deeply $mm->metafile_data( {}, { @METASPEC14 }, ), {
        @GENERIC_OUT,
        prereqs => {
            @REQ20,
            runtime => { requires => { perl => 5.006, }, },
        },
    }, 'MIN_PERL_VERSION meta-spec 1.4';
}

# Test MIN_PERL_VERSION meta-spec 2.0
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        MIN_PERL_VERSION => 5.006,
    );
    is_deeply $mm->metafile_data, {
        prereqs => {
            @REQ20,
            runtime => { requires => { 'perl' => '5.006', }, },
        },
        @GENERIC_OUT,
    }, 'MIN_PERL_VERSION meta-spec 2.0';
}

# Test MIN_PERL_VERSION meta-spec 1.4
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        MIN_PERL_VERSION => 5.006,
        PREREQ_PM => { 'Foo::Bar' => 1.23, },
    );
    is_deeply $mm->metafile_data, {
        @GENERIC_OUT,
        prereqs => {
            @REQ20,
            runtime         => {
                requires    => {
                    'Foo::Bar'  => 1.23,
                    'perl'  => '5.006',
                },
            },
        },
    }, 'MIN_PERL_VERSION and PREREQ_PM meta-spec 1.4';
}

# Test CONFIGURE_REQUIRES meta-spec 1.4
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        CONFIGURE_REQUIRES => { "Fake::Module1" => 1.01, },
    );
    is_deeply $mm->metafile_data( {}, { @METASPEC14 }, ), {
        prereqs => {
            @REQ20,
            configure => { requires => { 'Fake::Module1' => 1.01, }, },
        },
        @GENERIC_OUT,
    },'CONFIGURE_REQUIRES meta-spec 1.4';
}

# Test CONFIGURE_REQUIRES meta-spec 2.0
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        CONFIGURE_REQUIRES => { "Fake::Module1" => 1.01, },
    );
    is_deeply $mm->metafile_data, {
        prereqs => {
            @REQ20,
            configure => { requires => { 'Fake::Module1' => 1.01, }, },
        },
        @GENERIC_OUT,
    },'CONFIGURE_REQUIRES meta-spec 2.0';
}

# Test BUILD_REQUIRES meta-spec 1.4
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        BUILD_REQUIRES => { "Fake::Module1" => 1.01, },
        META_MERGE => { "meta-spec" => { version => 1.4 }},
    );
    is_deeply $mm->metafile_data( {}, { @METASPEC14 }, ), {
        prereqs => {
            @REQ20,
            build => { requires => { 'Fake::Module1' => 1.01, }, },
        },
        @GENERIC_OUT,
    },'BUILD_REQUIRES meta-spec 1.4';
}

# Test BUILD_REQUIRES meta-spec 2.0
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        BUILD_REQUIRES => { "Fake::Module1" => 1.01, },
    );
    is_deeply $mm->metafile_data, {
        prereqs => {
            @REQ20,
            build => { requires => { 'Fake::Module1' => 1.01, }, },
        },
        @GENERIC_OUT,
    },'BUILD_REQUIRES meta-spec 2.0';
}

# Test TEST_REQUIRES meta-spec 1.4
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        TEST_REQUIRES => { "Fake::Module1" => 1.01, },
        META_MERGE => { "meta-spec" => { version => 1.4 }},
    );
    is_deeply $mm->metafile_data( {}, { @METASPEC14 }, ), {
        prereqs => {
            @REQ20,
            test => { requires => { "Fake::Module1" => 1.01, }, },
        },
        @GENERIC_OUT,
    },'TEST_REQUIRES meta-spec 1.4';
}

# Test TEST_REQUIRES meta-spec 2.0
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        TEST_REQUIRES => { "Fake::Module1" => 1.01, },
    );
    is_deeply $mm->metafile_data, {
        prereqs => {
            @REQ20,
            test => { requires => { "Fake::Module1" => 1.01, }, },
        },
        @GENERIC_OUT,
    },'TEST_REQUIRES meta-spec 2.0';
}

# Test _REQUIRES key priority over META_ADD
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        BUILD_REQUIRES => { "Fake::Module1" => 1.01, },
        META_ADD => (my $meta_add = { build_requires => {}, configure_requires => {} }),
    );
    is_deeply $mm->metafile_data($meta_add), {
        prereqs => {
            configure => { requires => { }, },
            build => { requires => { }, },
        },
        @GENERIC_OUT,
    },'META.yml data (META_ADD wins)';
    # Yes, this is all hard coded.

    my $want_mymeta = {
        name            => 'ExtUtils-MakeMaker',
        version         => '6.57_07',
        abstract        => 'Create a module Makefile',
        author          => ['Michael G Schwern <schwern@pobox.com>'],
        license         => ['perl_5'],
        dynamic_config  => 0,
        prereqs => {
            runtime => {
                requires => {
                    "DirHandle"         => 0,
                    "File::Basename"    => 0,
                    "File::Spec"        => "0.8",
                    "Pod::Man"          => 0,
                    "perl"              => "5.006",
                },
            },
            @REQ20,
            build => { requires => { 'Fake::Module1' => 1.01, }, },
        },
        release_status => 'testing',
        resources => {
            license     =>  [ 'http://dev.perl.org/licenses/' ],
            homepage    =>  'http://makemaker.org',
            bugtracker  =>  { web => 'http://rt.cpan.org/NoAuth/Bugs.html?Dist=ExtUtils-MakeMaker' },
            repository  =>  { url => 'http://github.com/Perl-Toolchain-Gang/ExtUtils-MakeMaker' },
            x_MailingList => 'makemaker@perl.org',
        },
        no_index        => {
            directory           => [qw(t inc)],
            package             => ["DynaLoader", "in"],
        },
        generated_by => "ExtUtils::MakeMaker version 6.5707, CPAN::Meta::Converter version 2.110580",
        @METASPEC20,
    };
    mymeta_ok $mm->mymeta("t/META_for_testing.json"),
              $want_mymeta,
              'MYMETA JSON data (BUILD_REQUIRES wins)';
    mymeta_ok $mm->mymeta("t/META_for_testing.yml"),
              $want_mymeta,
              'MYMETA YAML data (BUILD_REQUIRES wins)';
}

{
    my $mm = $new_mm->(
        @GENERIC_IN,
        CONFIGURE_REQUIRES  => { "Fake::Module0" => 0.99 },
        BUILD_REQUIRES      => { "Fake::Module1" => 1.01 },
        TEST_REQUIRES       => { "Fake::Module2" => 1.23 },
    );
    my $meta = $mm->mymeta('t/META_for_testing.json');
    is($meta->{configure_requires}, undef, "no configure_requires in v2 META");
    is($meta->{build_requires}, undef, "no build_requires in v2 META");
    is_deeply(
        $meta->{prereqs}{configure}{requires},
        { "Fake::Module0" => 0.99 },
        "configure requires are one thing in META v2...",
    );
    is_deeply(
        $meta->{prereqs}{build}{requires},
        { "Fake::Module1" => 1.01 },
        "build requires are one thing in META v2...",
    );
    is_deeply(
        $meta->{prereqs}{test}{requires},
        { "Fake::Module2" => 1.23 },
        "...and test requires are another",
    );
}

note "CPAN::Meta bug using the module version instead of the meta spec version";
{
    my $mm = $new_mm->(
        NAME      => 'GD::Barcode::Code93',
        AUTHOR    => 'Chris DiMartino',
        ABSTRACT  => 'Code 93 implementation of GD::Barcode family',
        PREREQ_PM => {
            'GD::Barcode' => 0,
            'GD'          => 0
        },
        VERSION   => '1.4',
    );
    my $meta = $mm->mymeta("t/META_for_testing_tricky_version.yml");
    is $meta->{'meta-spec'}{version}, 2, "internally, our MYMETA struct is v2";
    in_dir {
        $mm->write_mymeta($meta);
        ok -e "MYMETA.yml";
        ok -e "MYMETA.json";
        my $meta_yml = Parse::CPAN::Meta->load_file("MYMETA.yml");
        is $meta_yml->{'meta-spec'}{version}, 1.4, "MYMETA.yml correctly downgraded to 1.4";
        my $meta_json = Parse::CPAN::Meta->load_file("MYMETA.json");
        cmp_ok $meta_json->{'meta-spec'}{version}, ">=", 2, "MYMETA.json at 2 or better";
    };
}

note "A bad license string";
{
    my $mm = $new_mm->(
        @GENERIC_IN,
        LICENSE   => 'death and retribution',
    );
    in_dir {
        my $meta = $mm->mymeta;
        {
            local $SIG{__WARN__} = sub {}; # suppress "Invalid" warning
            $mm->write_mymeta($meta);
        }
        my $meta_yml = Parse::CPAN::Meta->load_file("MYMETA.yml");
        is $meta_yml->{license}, "unknown", "in yaml";
        my $meta_json = Parse::CPAN::Meta->load_file("MYMETA.json");
        is_deeply $meta_json->{license}, ["unknown"], "in json";
    };
}