/*

 * Copyright (c) 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.

 *

 * 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.test;

import java.util.Objects;

public final class JavaAppDesc {

    public JavaAppDesc() {

    }

    public JavaAppDesc setClassName(String v) {

        qualifiedClassName = v;

        return this;

    }

    public JavaAppDesc setModuleName(String v) {

        moduleName = v;

        return this;

    }

    public JavaAppDesc setJarFileName(String v) {

        jarFileName = v;

        return this;

    }

    public JavaAppDesc setModuleVersion(String v) {

        moduleVersion = v;

        return this;

    }

    public JavaAppDesc setJarWithMainClass(boolean v) {

        jarWithMainClass = v;

        return this;

    }

    public String className() {

        return qualifiedClassName;

    }

    public String moduleName() {

        return moduleName;

    }

    public String packageName() {

        int lastDotIdx = qualifiedClassName.lastIndexOf('.');

        if (lastDotIdx == -1) {

            return null;

        }

        return qualifiedClassName.substring(0, lastDotIdx);

    }

    public String jarFileName() {

        return jarFileName;

    }

    public String moduleVersion() {

        return moduleVersion;

    }

    public boolean jarWithMainClass() {

        return jarWithMainClass;

    }

    @Override

    public String toString() {

        StringBuilder sb = new StringBuilder();

        if (jarFileName != null) {

            sb.append(jarFileName).append(':');

        }

        if (moduleName != null) {

            sb.append(moduleName).append('/');

        }

        if (qualifiedClassName != null) {

            sb.append(qualifiedClassName);

        }

        if (jarWithMainClass) {

            sb.append('!');

        }

        if (moduleVersion != null) {

            sb.append('@').append(moduleVersion);

        }

        return sb.toString();

    }

    /**

     * Create Java application description form encoded string value.

     *

     * Syntax of encoded Java application description is

     * [jar_file:][module_name/]qualified_class_name[!][@module_version].

     *

     * E.g.: `duke.jar:com.other/com.other.foo.bar.Buz!@3.7` encodes modular

     * application. Module name is `com.other`. Main class is

     * `com.other.foo.bar.Buz`. Module version is `3.7`. Application will be

     * compiled and packed in `duke.jar` jar file. jar command will set module

     * version (3.7) and main class (Buz) attributes in the jar file.

     *

     * E.g.: `Ciao` encodes non-modular `Ciao` class in the default package.

     * jar command will not put main class attribute in the jar file.

     * Default name will be picked for jar file - `hello.jar`.

     *

     * @param cmd jpackage command to configure

     * @param javaAppDesc encoded Java application description

     */

    public static JavaAppDesc parse(String javaAppDesc) {

        JavaAppDesc desc = HelloApp.createDefaltAppDesc();

        if (javaAppDesc == null) {

            return desc;

        }

        String moduleNameAndOther = Functional.identity(() -> {

            String[] components = javaAppDesc.split(":", 2);

            if (components.length == 2) {

                desc.setJarFileName(components[0]);

            }

            return components[components.length - 1];

        }).get();

        String classNameAndOther = Functional.identity(() -> {

            String[] components = moduleNameAndOther.split("/", 2);

            if (components.length == 2) {

                desc.setModuleName(components[0]);

            }

            return components[components.length - 1];

        }).get();

        Functional.identity(() -> {

            String[] components = classNameAndOther.split("@", 2);

            if (components[0].endsWith("!")) {

                components[0] = components[0].substring(0,

                        components[0].length() - 1);

                desc.setJarWithMainClass(true);

            }

            desc.setClassName(components[0]);

            if (components.length == 2) {

                desc.setModuleVersion(components[1]);

            }

        }).run();

        return desc;

    }

    private String qualifiedClassName;

    private String moduleName;

    private String jarFileName;

    private String moduleVersion;

    private boolean jarWithMainClass;

}