/*

 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.

 * Copyright (C) 2011, 2013-2021 The JavaParser Team.

 *

 * This file is part of JavaParser.

 *

 * JavaParser can be used either under the terms of

 * a) the GNU Lesser General Public License as published by

 *     the Free Software Foundation, either version 3 of the License, or

 *     (at your option) any later version.

 * b) the terms of the Apache License

 *

 * You should have received a copy of both licenses in LICENCE.LGPL and

 * LICENCE.APACHE. Please refer to those files for details.

 *

 * JavaParser 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 Lesser General Public License for more details.

 */

package com.github.javaparser.ast.expr;

import com.github.javaparser.TokenRange;

import com.github.javaparser.ast.*;

import com.github.javaparser.ast.observer.ObservableProperty;

import com.github.javaparser.ast.type.ArrayType;

import com.github.javaparser.ast.type.ClassOrInterfaceType;

import com.github.javaparser.ast.type.Type;

import com.github.javaparser.ast.visitor.CloneVisitor;

import com.github.javaparser.ast.visitor.GenericVisitor;

import com.github.javaparser.ast.visitor.VoidVisitor;

import com.github.javaparser.metamodel.ArrayCreationExprMetaModel;

import com.github.javaparser.metamodel.JavaParserMetaModel;

import com.github.javaparser.metamodel.NonEmptyProperty;

import com.github.javaparser.metamodel.OptionalProperty;

import java.util.Optional;

import java.util.function.Consumer;

import static com.github.javaparser.StaticJavaParser.parseType;

import static com.github.javaparser.utils.Utils.assertNotNull;

/**

 * {@code new int[5][4][][]} or {@code new int[][]{{1},{2,3}}}.

 *

 * <br>"int" is the element type.

 * <br>All the brackets are stored in the levels field, from left to right.

 *

 * @author Julio Vilmar Gesser

 */

public class ArrayCreationExpr extends Expression {

    @NonEmptyProperty

    private NodeList<ArrayCreationLevel> levels;

    private Type elementType;

    @OptionalProperty

    private ArrayInitializerExpr initializer;

    public ArrayCreationExpr() {

        this(null, new ClassOrInterfaceType(), new NodeList<>(), new ArrayInitializerExpr());

    }

    @AllFieldsConstructor

    public ArrayCreationExpr(Type elementType, NodeList<ArrayCreationLevel> levels, ArrayInitializerExpr initializer) {

        this(null, elementType, levels, initializer);

    }

    public ArrayCreationExpr(Type elementType) {

        this(null, elementType, new NodeList<>(), new ArrayInitializerExpr());

    }

    /**

     * This constructor is used by the parser and is considered private.

     */

    @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")

    public ArrayCreationExpr(TokenRange tokenRange, Type elementType, NodeList<ArrayCreationLevel> levels, ArrayInitializerExpr initializer) {

        super(tokenRange);

        setElementType(elementType);

        setLevels(levels);

        setInitializer(initializer);

        customInitialization();

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")

    public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {

        return v.visit(this, arg);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")

    public <A> void accept(final VoidVisitor<A> v, final A arg) {

        v.visit(this, arg);

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public Optional<ArrayInitializerExpr> getInitializer() {

        return Optional.ofNullable(initializer);

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public Type getElementType() {

        return elementType;

    }

    /**

     * Sets the initializer

     *

     * @param initializer the initializer, can be null

     * @return this, the ArrayCreationExpr

     */

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public ArrayCreationExpr setInitializer(final ArrayInitializerExpr initializer) {

        if (initializer == this.initializer) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.INITIALIZER, this.initializer, initializer);

        if (this.initializer != null)

            this.initializer.setParentNode(null);

        this.initializer = initializer;

        setAsParentNodeOf(initializer);

        return this;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public ArrayCreationExpr setElementType(final Type elementType) {

        assertNotNull(elementType);

        if (elementType == this.elementType) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.ELEMENT_TYPE, this.elementType, elementType);

        if (this.elementType != null)

            this.elementType.setParentNode(null);

        this.elementType = elementType;

        setAsParentNodeOf(elementType);

        return this;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public NodeList<ArrayCreationLevel> getLevels() {

        return levels;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public ArrayCreationExpr setLevels(final NodeList<ArrayCreationLevel> levels) {

        assertNotNull(levels);

        if (levels == this.levels) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.LEVELS, this.levels, levels);

        if (this.levels != null)

            this.levels.setParentNode(null);

        this.levels = levels;

        setAsParentNodeOf(levels);

        return this;

    }

    /**

     * Takes the element type and wraps it in an ArrayType for every array creation level.

     */

    public Type createdType() {

        Type result = elementType;

        for (int i = 0; i < levels.size(); i++) {

            result = new ArrayType(result, ArrayType.Origin.TYPE, new NodeList<>());

        }

        return result;

    }

    /**

     * Sets this type to this class and try to import it to the {@link CompilationUnit} if needed

     *

     * @param typeClass the type

     * @return this

     */

    public ArrayCreationExpr setElementType(Class<?> typeClass) {

        tryAddImportToParentCompilationUnit(typeClass);

        return setElementType(parseType(typeClass.getSimpleName()));

    }

    public ArrayCreationExpr setElementType(final String type) {

        return setElementType(parseType(type));

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")

    public boolean remove(Node node) {

        if (node == null)

            return false;

        if (initializer != null) {

            if (node == initializer) {

                removeInitializer();

                return true;

            }

        }

        for (int i = 0; i < levels.size(); i++) {

            if (levels.get(i) == node) {

                levels.remove(i);

                return true;

            }

        }

        return super.remove(node);

    }

    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")

    public ArrayCreationExpr removeInitializer() {

        return setInitializer((ArrayInitializerExpr) null);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.CloneGenerator")

    public ArrayCreationExpr clone() {

        return (ArrayCreationExpr) accept(new CloneVisitor(), null);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")

    public ArrayCreationExprMetaModel getMetaModel() {

        return JavaParserMetaModel.arrayCreationExprMetaModel;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")

    public boolean replace(Node node, Node replacementNode) {

        if (node == null)

            return false;

        if (node == elementType) {

            setElementType((Type) replacementNode);

            return true;

        }

        if (initializer != null) {

            if (node == initializer) {

                setInitializer((ArrayInitializerExpr) replacementNode);

                return true;

            }

        }

        for (int i = 0; i < levels.size(); i++) {

            if (levels.get(i) == node) {

                levels.set(i, (ArrayCreationLevel) replacementNode);

                return true;

            }

        }

        return super.replace(node, replacementNode);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public boolean isArrayCreationExpr() {

        return true;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public ArrayCreationExpr asArrayCreationExpr() {

        return this;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public void ifArrayCreationExpr(Consumer<ArrayCreationExpr> action) {

        action.accept(this);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public Optional<ArrayCreationExpr> toArrayCreationExpr() {

        return Optional.of(this);

    }

}