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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package jdk.jpackage.internal;

import static java.util.stream.Collectors.toMap;
import static jdk.jpackage.internal.LinuxFromOptions.createLinuxApplication;
import static jdk.jpackage.internal.LinuxPackagingPipeline.APPLICATION_LAYOUT;
import static jdk.jpackage.internal.cli.StandardBundlingOperation.CREATE_LINUX_APP_IMAGE;
import static jdk.jpackage.internal.cli.StandardBundlingOperation.CREATE_LINUX_DEB;
import static jdk.jpackage.internal.cli.StandardBundlingOperation.CREATE_LINUX_RPM;
import static jdk.jpackage.internal.util.MemoizingSupplier.runOnce;

import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Supplier;
import java.util.stream.Stream;
import jdk.jpackage.internal.cli.Options;
import jdk.jpackage.internal.cli.StandardBundlingOperation;
import jdk.jpackage.internal.model.BundlingOperationDescriptor;
import jdk.jpackage.internal.model.LinuxPackage;
import jdk.jpackage.internal.model.PackageType;
import jdk.jpackage.internal.model.StandardPackageType;
import jdk.jpackage.internal.summary.SummaryAccumulator;
import jdk.jpackage.internal.summary.StandardProperty;
import jdk.jpackage.internal.util.Result;

public class LinuxBundlingEnvironment extends DefaultBundlingEnvironment {

    public LinuxBundlingEnvironment() {
        super(build().mutate(builder -> {

            // Wrap the generic Linux system environment supplier in the run-once wrapper
            // as this supplier is called from both RPM and DEB Linux system environment suppliers.
            var sysEnv = runOnce(() -> {
                return LinuxSystemEnvironment.create();
            });

            Supplier<Result<LinuxDebSystemEnvironment>> debSysEnv = () -> {
                return LinuxDebSystemEnvironment.create(sysEnv.get().flatMap(v -> {
                    return adjustPackageArch(v, StandardPackageType.LINUX_DEB);
                }));
            };

            Supplier<Result<LinuxRpmSystemEnvironment>> rpmSysEnv = () -> {
                return LinuxRpmSystemEnvironment.create(sysEnv.get().flatMap(v -> {
                    return adjustPackageArch(v, StandardPackageType.LINUX_RPM);
                }));
            };

            builder.defaultOperation(() -> {
                return sysEnv.get().value().map(LinuxSystemEnvironment::nativePackageType).map(DESCRIPTORS::get);
            })
            .bundler(CREATE_LINUX_DEB, debSysEnv, LinuxBundlingEnvironment::createDebPackage)
            .bundler(CREATE_LINUX_RPM, rpmSysEnv, LinuxBundlingEnvironment::createRpmPackage);
        }).bundler(CREATE_LINUX_APP_IMAGE, LinuxBundlingEnvironment::createAppImage));
    }

    private static void createDebPackage(Options options, LinuxDebSystemEnvironment sysEnv) {

        var pkg = LinuxFromOptions.createLinuxDebPackage(options, sysEnv);

        createNativePackage(options,
                updateSummary(pkg, OptionUtils.summary(options), sysEnv),
                buildEnv()::create,
                LinuxBundlingEnvironment::buildPipeline,
                (env, _, outputDir) -> {
                    return new LinuxDebPackager(env, pkg, outputDir, sysEnv);
                });
    }

    private static void createRpmPackage(Options options, LinuxRpmSystemEnvironment sysEnv) {

        var pkg = LinuxFromOptions.createLinuxRpmPackage(options, sysEnv);

        createNativePackage(options,
                updateSummary(pkg, OptionUtils.summary(options), sysEnv),
                buildEnv()::create,
                LinuxBundlingEnvironment::buildPipeline,
                (env, _, outputDir) -> {
                    return new LinuxRpmPackager(env, pkg, outputDir, sysEnv);
                });
    }

    private static void createAppImage(Options options) {

        final var app = createLinuxApplication(options);

        createApplicationImage(options, app, LinuxPackagingPipeline.build(Optional.empty()));
    }

    private static PackagingPipeline.Builder buildPipeline(LinuxPackage pkg) {
        return LinuxPackagingPipeline.build(Optional.of(pkg));
    }

    private static BuildEnvFromOptions buildEnv() {
        return new BuildEnvFromOptions().predefinedAppImageLayout(APPLICATION_LAYOUT);
    }

    private static <T extends LinuxPackage> T updateSummary(
            T pkg, SummaryAccumulator summary, LinuxSystemEnvironment sysEnv) {
        if (!LinuxSystemEnvironment.isWithRequiredPackagesSearch(sysEnv, pkg)) {
            summary.put(StandardProperty.LINUX_DISABLE_REQUIRED_PACKAGES_SEARCH);
        }
        return pkg;
    }

    private static Result<LinuxSystemEnvironment> adjustPackageArch(LinuxSystemEnvironment sysEnv, StandardPackageType type) {
        Objects.requireNonNull(sysEnv);
        Objects.requireNonNull(type);
        if (sysEnv.nativePackageType().equals(type)) {
            return Result.of(() -> {
                return sysEnv;
            });
        } else {
            return LinuxPackageArch.create(type).map(arch -> {
                return new LinuxSystemEnvironment.Stub(sysEnv.soLookupAvailable(), sysEnv.nativePackageType(), arch);
            });
        }
    }

    private static final Map<PackageType, BundlingOperationDescriptor> DESCRIPTORS = Stream.of(
            CREATE_LINUX_DEB,
            CREATE_LINUX_RPM
    ).collect(toMap(StandardBundlingOperation::packageType, StandardBundlingOperation::descriptor));
}
