/*

 * Copyright (c) 2013, 2014, 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 com.sun.tools.jdeps;

import java.io.IOException;

import java.util.*;

/**

 * Build the profile information from ct.sym if exists.

 */

enum Profile {

    COMPACT1("compact1", 1, "java.compact1"),

    COMPACT2("compact2", 2, "java.compact2"),

    COMPACT3("compact3", 3, "java.compact3"),

    FULL_JRE("Full JRE", 4, "java.se");

    final String name;

    final int profile;

    final String moduleName;

    final Set<Module> modules = new HashSet<>();

    Profile(String name, int profile, String moduleName) {

        this.name = name;

        this.profile = profile;

        this.moduleName = moduleName;

    }

    public String profileName() {

        return name;

    }

    @Override

    public String toString() {

        return moduleName;

    }

    public static int getProfileCount() {

        return JDK.isEmpty() ? 0 : Profile.values().length;

    }

    /**

     * Returns the Profile for the given package name; null if not found.

     */

    public static Profile getProfile(String pn) {

        for (Profile p : Profile.values()) {

            for (Module m : p.modules) {

                if (m.packages().contains(pn)) {

                    return p;

                }

            }

        }

        return null;

    }

    /*

     * Returns the Profile for a given Module; null if not found.

     */

    public static Profile getProfile(Module m) {

        for (Profile p : Profile.values()) {

            if (p.modules.contains(m)) {

                return p;

            }

        }

        return null;

    }

    final static Set<Module> JDK = new HashSet<>();

    static void initProfiles() {

        for (Profile p : Profile.values()) {

            Module m = PlatformClassPath.findModule(p.moduleName);

            if (m == null)

                throw new Error(p.moduleName + " doesn't exist");

            p.modules.add(m);

            JDK.add(m);

            for (String n : m.requires().keySet()) {

                Module d = PlatformClassPath.findModule(n);

                if (d == null)

                    throw new Error(n + " doesn't exist");

                p.modules.add(d);

                JDK.add(d);

            }

        }

    }

    // for debugging

    public static void main(String[] args) throws IOException {

        // find platform modules

        PlatformClassPath.getArchives(null);

        if (Profile.getProfileCount() == 0) {

            System.err.println("No profile is present in this JDK");

        }

        for (Profile p : Profile.values()) {

            String profileName = p.name;

            System.out.format("%2d: %-10s  %s%n", p.profile, profileName, p.modules);

            for (Module m: p.modules) {

                System.out.format("module %s%n", m.name());

                System.out.format("   requires %s%n", m.requires());

                for (Map.Entry<String,Set<String>> e: m.exports().entrySet()) {

                    System.out.format("   exports %s %s%n", e.getKey(),

                        e.getValue().isEmpty() ? "" : "to " + e.getValue());

                }

            }

        }

        System.out.println("All JDK modules:-");

        JDK.stream().sorted(Comparator.comparing(Module::name))

           .forEach(m -> System.out.println(m));

    }

}