/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.skywalking.apm.plugin.vertx3.define;

import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.matcher.ElementMatcher;
import org.apache.skywalking.apm.agent.core.plugin.interceptor.ConstructorInterceptPoint;
import org.apache.skywalking.apm.agent.core.plugin.interceptor.InstanceMethodsInterceptPoint;
import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.ClassInstanceMethodsEnhancePluginDefine;
import org.apache.skywalking.apm.agent.core.plugin.match.ClassMatch;
import org.apache.skywalking.apm.agent.core.plugin.match.NameMatch;

import static net.bytebuddy.matcher.ElementMatchers.named;
import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
import static net.bytebuddy.matcher.ElementMatchers.takesArguments;

/**
 * {@link HttpClientRequestImplInstrumentation} enhance the <code>end/sendHead</code> methods in
 * <code>io.vertx.core.http.impl.HttpClientRequestImpl</code> class by
 * <code>HttpClientRequestImplInterceptor</code> class
 */
public class HttpClientRequestImplInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {

    private static final String ENHANCE_CLASS = "io.vertx.core.http.impl.HttpClientRequestImpl";
    private static final String INTERCEPT_CLASS = "org.apache.skywalking.apm.plugin.vertx3.HttpClientRequestImplInterceptor";

    @Override
    public ConstructorInterceptPoint[] getConstructorsInterceptPoints() {
        return new ConstructorInterceptPoint[]{
                new ConstructorInterceptPoint() {
                    @Override
                    public ElementMatcher<MethodDescription> getConstructorMatcher() {
                        return takesArgument(3, int.class);
                    }

                    @Override
                    public String getConstructorInterceptor() {
                        return INTERCEPT_CLASS + "$Version30XTo33XConstructorInterceptor";
                    }
                },
                new ConstructorInterceptPoint() {
                    @Override
                    public ElementMatcher<MethodDescription> getConstructorMatcher() {
                        return takesArgument(4, int.class);
                    }

                    @Override
                    public String getConstructorInterceptor() {
                        return INTERCEPT_CLASS + "$Version34XTo37XConstructorInterceptor";
                    }
                },
                new ConstructorInterceptPoint() {
                    @Override
                    public ElementMatcher<MethodDescription> getConstructorMatcher() {
                        return takesArgument(5, int.class);
                    }

                    @Override
                    public String getConstructorInterceptor() {
                        return INTERCEPT_CLASS + "$Version38PlusConstructorInterceptor";
                    }
                }
        };
    }

    @Override
    public InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
        return new InstanceMethodsInterceptPoint[]{
                new InstanceMethodsInterceptPoint() {
                    @Override
                    public ElementMatcher<MethodDescription> getMethodsMatcher() {
                        return named("end")
                                .or(named("sendHead").and(takesArguments(1)));
                    }

                    @Override
                    public String getMethodsInterceptor() {
                        return INTERCEPT_CLASS;
                    }

                    @Override
                    public boolean isOverrideArgs() {
                        return false;
                    }
                }
        };
    }

    @Override
    protected ClassMatch enhanceClass() {
        return NameMatch.byName(ENHANCE_CLASS);
    }

    @Override
    protected String[] witnessClasses() {
        return new String[] {"io.vertx.core.http.impl.WebSocketFrameFactoryImpl"};
    }
}
