/*

 * Copyright (c) 2012, 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.sjavac;

import java.io.File;

import java.net.URI;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Set;

/**

 * The module is the root of a set of packages/sources/artifacts.

 * At the moment there is only one module in use, the empty/no-name/default module.

 *

 * <p><b>This is NOT part of any supported API.

 * If you write code that depends on this, you do so at your own

 * risk.  This code and its internal interfaces are subject to change

 * or deletion without notice.</b></p>

 */

public class Module implements Comparable<Module> {

    private String name;

    private String dirname;

    public Module(String n, String dn) {

        name = n;

        dirname = n;

    }

    public String name() { return name; }

    public String dirname() { return dirname; }

    public Map<String,Package> packages() { return packages; }

    public Map<String,Source> sources() { return sources; }

    public Map<String,File> artifacts() { return artifacts; }

    @Override

    public boolean equals(Object o) {

        return (o instanceof Module) && name.equals(((Module)o).name);

    }

    @Override

    public int hashCode() {

        return name.hashCode();

    }

    @Override

    public int compareTo(Module o) {

        return name.compareTo(o.name);

    }

    public void save(StringBuilder b) {

        b.append("M ").append(name).append(":").append("\n");

        Package.savePackages(packages, b);

    }

    public static Module load(String l) {

        int cp = l.indexOf(':',2);

        if (cp == -1) return null;

        String name = l.substring(2,cp);

        return new Module(name, "");

    }

    public static void saveModules(Map<String,Module> ms, StringBuilder b)

    {

        for (Module m : ms.values()) {

            m.save(b);

        }

    }

    public void addPackage(Package p) {

        packages.put(p.name(), p);

    }

    public Package lookupPackage(String pkg) {

        Package p = packages.get(pkg);

        if (p == null) {

            p = new Package(this, pkg);

            packages.put(pkg, p);

        }

        return p;

    }

    public void addSource(String pkg, Source src) {

        Package p = lookupPackage(pkg);

        src.setPackage(p);

        p.addSource(src);

        sources.put(src.file().getPath(), src);

    }

    public Source lookupSource(String path) {

        return sources.get(path);

    }

    public void addArtifacts(String pkg, Set<URI> as) {

        Package p = lookupPackage(pkg);

        for (URI u : as) {

            p.addArtifact(new File(u));

        }

    }

    public void setDependencies(String pkg, Set<String> deps) {

        Package p = lookupPackage(pkg);

        p.setDependencies(deps);

    }

    public void setPubapi(String pkg, List<String> ps) {

        Package p = lookupPackage(pkg);

        p.setPubapi(ps);

    }

    public boolean hasPubapiChanged(String pkg, List<String> ps) {

        Package p = lookupPackage(pkg);

        return p.hasPubapiChanged(ps);

    }

}