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/*
 * Copyright (c) 2024. caoccao.com Sam Cao
 *
 * 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 com.caoccao.javet.swc4j.ast.program;

import com.caoccao.javet.swc4j.ast.Swc4jAst;
import com.caoccao.javet.swc4j.ast.enums.Swc4jAstType;
import com.caoccao.javet.swc4j.ast.interfaces.ISwc4jAst;
import com.caoccao.javet.swc4j.ast.interfaces.ISwc4jAstModuleItem;
import com.caoccao.javet.swc4j.ast.interfaces.ISwc4jAstProgram;
import com.caoccao.javet.swc4j.ast.visitors.ISwc4jAstVisitor;
import com.caoccao.javet.swc4j.ast.visitors.Swc4jAstVisitorResponse;
import com.caoccao.javet.swc4j.jni2rust.*;
import com.caoccao.javet.swc4j.span.Swc4jSpan;
import com.caoccao.javet.swc4j.utils.AssertionUtils;
import com.caoccao.javet.swc4j.utils.SimpleList;

import java.util.List;
import java.util.Optional;

/**
 * The type Swc4j ast module.
 *
 * @since 0.2.0
 */
@Jni2RustClass(filePath = Jni2RustFilePath.AstUtils)
public class Swc4jAstModule
        extends Swc4jAst
        implements ISwc4jAstProgram {
    /**
     * The Body.
     *
     * @since 0.2.0
     */
    protected final List body;
    /**
     * The Shebang.
     *
     * @since 0.2.0
     */
    @Jni2RustField(componentAtom = true)
    protected Optional shebang;

    /**
     * Instantiates a new Swc4j ast module.
     *
     * @param body    the body
     * @param shebang the shebang
     * @param span    the span
     * @since 0.2.0
     */
    @Jni2RustMethod
    public Swc4jAstModule(
            List body,
            @Jni2RustParam(optional = true) String shebang,
            Swc4jSpan span) {
        super(span);
        setShebang(shebang);
        this.body = AssertionUtils.notNull(body, "Body");
        this.body.forEach(node -> node.setParent(this));
    }

    public static Swc4jAstModule create() {
        return create(SimpleList.of());
    }

    public static Swc4jAstModule create(List body) {
        return create(body, null);
    }

    public static Swc4jAstModule create(List body, String shebang) {
        return new Swc4jAstModule(body, shebang, Swc4jSpan.DUMMY);
    }

    @Jni2RustMethod
    @Override
    public List getBody() {
        return body;
    }

    @Override
    public List getChildNodes() {
        return SimpleList.copyOf(body);
    }

    @Jni2RustMethod
    @Override
    public Optional getShebang() {
        return shebang;
    }

    @Override
    public Swc4jAstType getType() {
        return Swc4jAstType.Module;
    }

    @Override
    public boolean replaceNode(ISwc4jAst oldNode, ISwc4jAst newNode) {
        if (!body.isEmpty() && newNode instanceof ISwc4jAstModuleItem) {
            final int size = body.size();
            for (int i = 0; i < size; i++) {
                if (body.get(i) == oldNode) {
                    body.set(i, (ISwc4jAstModuleItem) newNode);
                    newNode.setParent(this);
                    return true;
                }
            }
        }
        return false;
    }

    public Swc4jAstModule setShebang(String shebang) {
        this.shebang = Optional.ofNullable(shebang);
        return this;
    }

    @Override
    public Swc4jAstVisitorResponse visit(ISwc4jAstVisitor visitor) {
        switch (visitor.visitModule(this)) {
            case Error:
                return Swc4jAstVisitorResponse.Error;
            case OkAndBreak:
                return Swc4jAstVisitorResponse.OkAndContinue;
            default:
                return super.visit(visitor);
        }
    }
}