/*
 * Copyright 2009-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.codehaus.groovy.eclipse.refactoring.core.utils.astScanner;

import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.ast.GroovyCodeVisitor;

/**
 * This class represents the imports like import static java.lang.Math.PI as myPI
 *
 * @author martin
 */
public class StaticFieldImport extends RefactoringImportNode {

    private final String field;
    private String newField;
    private String newAlias;

    public StaticFieldImport(ClassNode type, String alias, String field) {
        super(type, alias);
        this.field = field;
        this.newClassName = type.getName();
        this.newField = field;
        this.newAlias = getAlias();
    }

    @Override
    public String getText() {
        if (field.equals(newAlias)) {
            return "import static " + newClassName + "." + newField;
        }
        //has alias
        return "import static " + newClassName + "." + newField + " as " + newAlias;
    }

    public String getField() {
        return field;
    }

    public void setNewField(String field) {
        this.newField = field;
    }

    public void setNewAlias(String newAlias) {
        this.newAlias = newAlias;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof StaticFieldImport) {
            StaticFieldImport other = (StaticFieldImport) obj;
            return (this.getType().equals(other.getType()) &&
                this.field.equals(other.getField()) &&
                this.getAlias().equals(other.getAlias()));
        }
        return false;
    }

    @Override
    public int hashCode() {
        return this.field.hashCode();
    }

    @Override
    public void visit(GroovyCodeVisitor visitor) {
        if (visitor instanceof AbstractRefactoringCodeVisitor) {
            ((AbstractRefactoringCodeVisitor) visitor).visitStaticFieldImport(this);
        }
    }
}