/*

 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * 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.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.jpackage.internal;

import java.io.File;

import java.io.IOException;

import java.util.*;

import java.util.jar.Attributes;

import java.util.jar.JarFile;

import java.util.jar.Manifest;

import static jdk.jpackage.internal.StandardBundlerParam.*;

public class BundleParams {

    final protected Map<String, ? super Object> params;

    // RelativeFileSet

    public static final String PARAM_APP_RESOURCES      = "appResources";

    public static final String PARAM_ICON               = "icon";

    // String - Name of bundle file and native launcher

    public static final String PARAM_NAME               = "name";

    // String - application vendor, used by most of the bundlers

    public static final String PARAM_VENDOR             = "vendor";

    // String - email name and email, only used for debian */

    public static final String PARAM_EMAIL              = "email";

    // String - vendor <email>, only used for debian */

    public static final String PARAM_MAINTAINER         = "maintainer";

    /* String - Copyright. Used on Mac */

    public static final String PARAM_COPYRIGHT          = "copyright";

    // String - GUID on windows for MSI, CFBundleIdentifier on Mac

    // If not compatible with requirements then bundler either do not bundle

    // or autogenerate

    public static final String PARAM_IDENTIFIER         = "identifier";

    /* boolean - shortcut preferences */

    public static final String PARAM_SHORTCUT           = "shortcutHint";

    // boolean - menu shortcut preference

    public static final String PARAM_MENU               = "menuHint";

    // String - Application version. Format may differ for different bundlers

    public static final String PARAM_VERSION            = "appVersion";

    // String - Optional application description. Used by MSI and on Linux

    public static final String PARAM_DESCRIPTION        = "description";

    // String - License type. Needed on Linux (rpm)

    public static final String PARAM_LICENSE_TYPE       = "licenseType";

    // String - File with license. Format is OS/bundler specific

    public static final String PARAM_LICENSE_FILE       = "licenseFile";

    // String Main application class.

    // Not used directly but used to derive default values

    public static final String PARAM_APPLICATION_CLASS  = "applicationClass";

    // boolean - Adds a dialog to let the user choose a directory

    // where the product will be installed.

    public static final String PARAM_INSTALLDIR_CHOOSER = "installdirChooser";

    /**

     * create a new bundle with all default values

     */

    public BundleParams() {

        params = new HashMap<>();

    }

    /**

     * Create a bundle params with a copy of the params

     * @param params map of initial parameters to be copied in.

     */

    public BundleParams(Map<String, ?> params) {

        this.params = new HashMap<>(params);

    }

    public void addAllBundleParams(Map<String, ? super Object> params) {

        this.params.putAll(params);

    }

    public <T> T fetchParam(BundlerParamInfo<T> paramInfo) {

        return paramInfo.fetchFrom(params);

    }

    @SuppressWarnings("unchecked")

    public <T> T fetchParamWithDefault(

            Class<T> klass, T defaultValue, String... keys) {

        for (String key : keys) {

            Object o = params.get(key);

            if (klass.isInstance(o)) {

                return (T) o;

            } else if (params.containsKey(key) && o == null) {

                return null;

            } else if (o != null) {

                Log.debug("Bundle param " + key + " is not type " + klass);

            }

        }

        return defaultValue;

    }

    public <T> T fetchParam(Class<T> klass, String... keys) {

        return fetchParamWithDefault(klass, null, keys);

    }

    // NOTE: we do not care about application parameters here

    // as they will be embeded into jar file manifest and

    // java launcher will take care of them!

    public Map<String, ? super Object> getBundleParamsAsMap() {

        return new HashMap<>(params);

    }

    public void setJvmargs(List<String> jvmargs) {

        putUnlessNullOrEmpty(JAVA_OPTIONS.getID(), jvmargs);

    }

    public void setAddModules(String value) {

        putUnlessNull(StandardBundlerParam.ADD_MODULES.getID(), value);

    }

    public void setLimitModules(String value)  {

        putUnlessNull(StandardBundlerParam.LIMIT_MODULES.getID(), value);

    }

    public void setModulePath(String value) {

        putUnlessNull(StandardBundlerParam.MODULE_PATH.getID(), value);

    }

    public void setMainModule(String value) {

        putUnlessNull(StandardBundlerParam.MODULE.getID(), value);

    }

    public String getApplicationID() {

        return fetchParam(IDENTIFIER);

    }

    public String getApplicationClass() {

        return fetchParam(MAIN_CLASS);

    }

    public void setApplicationClass(String applicationClass) {

        putUnlessNull(PARAM_APPLICATION_CLASS, applicationClass);

    }

    public String getAppVersion() {

        return fetchParam(VERSION);

    }

    public void setAppVersion(String version) {

        putUnlessNull(PARAM_VERSION, version);

    }

    public String getDescription() {

        return fetchParam(DESCRIPTION);

    }

    public void setDescription(String s) {

        putUnlessNull(PARAM_DESCRIPTION, s);

    }

    public void setInstalldirChooser(Boolean b) {

        putUnlessNull(PARAM_INSTALLDIR_CHOOSER, b);

    }

    public String getName() {

        return fetchParam(APP_NAME);

    }

    public void setName(String name) {

        putUnlessNull(PARAM_NAME, name);

    }

    public boolean getVerbose() {

        return fetchParam(VERBOSE);

    }

    public List<String> getJvmargs() {

        return JAVA_OPTIONS.fetchFrom(params);

    }

    public jdk.jpackage.internal.RelativeFileSet getAppResource() {

        return fetchParam(APP_RESOURCES);

    }

    public void setAppResource(jdk.jpackage.internal.RelativeFileSet fs) {

        putUnlessNull(PARAM_APP_RESOURCES, fs);

    }

    public void setAppResourcesList(

            List<jdk.jpackage.internal.RelativeFileSet> rfs) {

        putUnlessNull(APP_RESOURCES_LIST.getID(), rfs);

    }

    public String getMainClassName() {

        String applicationClass = getApplicationClass();

        if (applicationClass == null) {

            return null;

        }

        int idx = applicationClass.lastIndexOf(".");

        if (idx >= 0) {

            return applicationClass.substring(idx+1);

        }

        return applicationClass;

    }

    public String getCopyright() {

        return fetchParam(COPYRIGHT);

    }

    public void setCopyright(String c) {

        putUnlessNull(PARAM_COPYRIGHT, c);

    }

    private String mainJar = null;

    // assuming that application was packaged according to the rules

    // we must have application jar, i.e. jar where we embed launcher

    // and have main application class listed as main class!

    // If there are more than one, or none - it will be treated as an error

    public String getMainApplicationJar() {

        jdk.jpackage.internal.RelativeFileSet appResources = getAppResource();

        if (mainJar != null) {

            if (getApplicationClass() == null) try {

                if (appResources != null) {

                    File srcdir = appResources.getBaseDirectory();

                    JarFile jf = new JarFile(new File(srcdir, mainJar));

                    Manifest m = jf.getManifest();

                    Attributes attrs = (m != null) ?

                            m.getMainAttributes() : null;

                    if (attrs != null) {

                        setApplicationClass(

                                attrs.getValue(Attributes.Name.MAIN_CLASS));

                    }

                }

            } catch (IOException ignore) {

            }

            return mainJar;

        }

        String applicationClass = getApplicationClass();

        if (appResources == null || applicationClass == null) {

            return null;

        }

        File srcdir = appResources.getBaseDirectory();

        for (String fname : appResources.getIncludedFiles()) {

            JarFile jf;

            try {

                jf = new JarFile(new File(srcdir, fname));

                Manifest m = jf.getManifest();

                Attributes attrs = (m != null) ? m.getMainAttributes() : null;

                if (attrs != null) {

                    boolean javaMain = applicationClass.equals(

                               attrs.getValue(Attributes.Name.MAIN_CLASS));

                    if (javaMain) {

                        mainJar = fname;

                        return mainJar;

                    }

                }

            } catch (IOException ignore) {

            }

        }

        return null;

    }

    public String getVendor() {

        return fetchParam(VENDOR);

    }

    public void setVendor(String vendor) {

       putUnlessNull(PARAM_VENDOR, vendor);

    }

    public String getEmail() {

        return fetchParam(String.class, PARAM_EMAIL);

    }

    public void setEmail(String email) {

        putUnlessNull(PARAM_EMAIL, email);

    }

    public void putUnlessNull(String param, Object value) {

        if (value != null) {

            params.put(param, value);

        }

    }

    public void putUnlessNullOrEmpty(String param, Collection<?> value) {

        if (value != null && !value.isEmpty()) {

            params.put(param, value);

        }

    }

    public void putUnlessNullOrEmpty(String param, Map<?,?> value) {

        if (value != null && !value.isEmpty()) {

            params.put(param, value);

        }

    }

}