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use alienfile;
use strict;

# problem: https://issues.apache.org/jira/browse/ZOOKEEPER-4013
# libzookeeper doesn't come with a pkg-config file, so even if there
# is a libzookeeper.a available, it won't show up here.
# So first probe with pkgconfig:
plugin 'PkgConfig' => (
  pkg_name        => 'libzookeeper',
  minimum_version => '3.5.0', # version here is a trick -- if there's no pkg-config result,
                              # the PkgConfig plugin will return an empty string, which will
                              # fail this version check, and tickle the CBuilder codepath
);

# And then try with Probe::CBuilder:
my %zk_probe_args = (
  version => qr/version = '[0-9\.]+'/,
  program => q{
#include <stdio.h>
#include <zookeeper/zookeeper_version.h>

int main() {
#ifdef ZOO_VERSION
    /* recent versions of zk only provide the textual version: */
    printf("version = '%s'\n", ZOO_VERSION);
#else
    printf("version = '%d.%d.%d'\n", ZOO_MAJOR_VERSION, ZOO_MINOR_VERSION, ZOO_PATCH_VERSION);
#endif
    return 0;
}
},
);

plugin 'Probe::CBuilder' => (
  # directly building the zk C source gets you a libzookeper
  # using the maven build gets you two libraries:
  # libzookeeper_st, which they strongly recommend not using,
  # and libzookeeper_mt, which is actually just libzookeeper.
  # So probe for both:
  libs    => '-lzookeeper_mt',
  %zk_probe_args,
);

share {
    # this is https://github.com/Hugmeir/zookeeper/tree/all-patches-for-p5-alien-libzookeeper
    plugin Download => (
        url     => 'https://github.com/hugmeir/zookeeper/archive/4b6b9dc0a6a419958ab27af8699e8417ab0f8dac.tar.gz',
    );

    plugin Extract => 'tar.gz';

    plugin 'Build::CMake' => ();
    build [
        'cd %{.install.extract}/zookeeper-client/zookeeper-client-c',
        [
            '%{cmake}',
                '-DCMAKE_BUILD_TYPE=Release', # release, no debug symbols
                '-DWANT_SYNCAPI=ON',          # sync and async symbols
                '-DWANT_CPPUNIT=OFF',         # we don't run `make test`
                '-DWITH_CYRUS_SASL:BOOL=OFF', # TODO: should probe for sasl
                @{ meta->prop->{plugin_build_cmake}->{args} },
                '%{.install.extract}/zookeeper-client/zookeeper-client-c',
        ],
        [
            '%{make}',
                '-C' => '%{.install.extract}/zookeeper-client/zookeeper-client-c',
        ],
        [
            '%{make}',
                '-C' => '%{.install.extract}/zookeeper-client/zookeeper-client-c',
                'install',
        ],
    ];

};

meta->after_hook(
    'gather_system' => sub {
        # if we are using the system libraries, we need to add -lzookeeper into libs:
        # ..but because we use three different hooks, we end up with race conditions
        # and need to do this mess:
        my ($build) = @_;
        my $install_prop    = $build->{install_prop} // {}; # make sure not to vivify this!
        my $cbuilder_gather = $install_prop->{plugin_probe_cbuilder_gather} // {};
        foreach my $gathered ( values %$cbuilder_gather ) {
            # if we have entries, it means the CBuilder hook succeeded -- so copy
            # the values it got!
            $build->{runtime_prop}->{$_} ||= $gathered->{$_}
                for keys %$gathered;
        }
    }
);