/*
 * Copyright (c) 1997, 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
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 */

package com.sun.codemodel.internal;


import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.List;
import java.util.Collection;
import java.util.Collections;

/**
 * Represents an arrays as annotation members
 *
 * <p>
 * This class implements {@link JAnnotatable} to allow
 * new annotations to be added as a member of the array.
 *
 * @author
 *     Bhakti Mehta (bhakti.mehta@sun.com)
 */
public final class JAnnotationArrayMember extends JAnnotationValue implements JAnnotatable {
    private final List<JAnnotationValue> values = new ArrayList<JAnnotationValue>();
    private final JCodeModel owner;

    JAnnotationArrayMember(JCodeModel owner) {
        this.owner = owner;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a string value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(String value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a boolean value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(boolean value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a byte value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(byte value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a char value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(char value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a double value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(double value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a long value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(long value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a short value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(short value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds an int value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(int value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an array member to this annotation
     *
     * @param value Adds a float value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(float value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(JExpr.lit(value));
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds a enum array member to this annotation
     *
     * @param value Adds a enum value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(final Enum<?> value) {
        JAnnotationValue annotationValue = new JAnnotationValue() {
            public void generate(JFormatter f) {
                f.t(owner.ref(value.getDeclaringClass())).p('.').p(value.name());
            }
        };
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds a enum array member to this annotation
     *
     * @param value Adds a enum value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(final JEnumConstant value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(value);
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds an expression array member to this annotation
     *
     * @param value Adds an expression value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(final JExpression value) {
        JAnnotationValue annotationValue = new JAnnotationStringValue(value);
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds a class array member to this annotation
     *
     * @param value Adds a class value to the array member
     * @return The JAnnotationArrayMember. More elements can be added by calling
     *         the same method multiple times
     */
    public JAnnotationArrayMember param(final Class<?> value){
       JAnnotationValue annotationValue = new JAnnotationStringValue(
                   new JExpressionImpl() {
                         public void generate(JFormatter f) {
                                 f.p(value.getName().replace('$', '.'));
                                 f.p(".class");
                        }
                 });
       values.add(annotationValue);
       return this;
   }

    public JAnnotationArrayMember param(JType type){
        JClass clazz = type.boxify();
        JAnnotationValue annotationValue = new JAnnotationStringValue ( clazz.dotclass() );
        values.add(annotationValue);
        return this;
    }

    /**
     * Adds a new annotation to the array.
     */
    public JAnnotationUse annotate(Class<? extends Annotation> clazz){
        return annotate(owner.ref(clazz));
    }

    /**
     * Adds a new annotation to the array.
     */
    public JAnnotationUse annotate(JClass clazz){
        JAnnotationUse a = new JAnnotationUse(clazz);
        values.add(a);
        return a;
    }


    public boolean removeAnnotation(JAnnotationUse annotation) {
        return this.values.remove(annotation);
    }

    public <W extends JAnnotationWriter> W annotate2(Class<W> clazz) {
        return TypedAnnotationWriter.create(clazz,this);
    }

    /**
     * {@link JAnnotatable#annotations()}
     */
    @SuppressWarnings("unchecked")
        public Collection<JAnnotationUse> annotations() {
        // this invocation is invalid if the caller isn't adding annotations into an array
        // so this potentially type-unsafe conversion would be justified.
        return Collections.<JAnnotationUse>unmodifiableList((List)values);
    }

    /**
     * Adds an annotation member to this annotation  array
     * This can be used for e.g &#64;XmlCollection(values= &#64;XmlCollectionItem(type=Foo.class))
     * @param value
     *        Adds a annotation  to the array member
     * @return
     *        The JAnnotationArrayMember. More elements can be added by calling
     *        the same method multiple times
     *
     * @deprecated
     *      use {@link #annotate}
     */
    public JAnnotationArrayMember param (JAnnotationUse value ){
        values.add(value);
        return this;
    }

    public void generate(JFormatter f) {
        f.p('{').nl().i();

        boolean first = true;
        for (JAnnotationValue aValue : values) {
            if (!first)
                f.p(',').nl();
            f.g(aValue);
            first = false;
        }
        f.nl().o().p('}');
    }
}
