/*
 * Copyright 2011-2023 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
 *
 *      https://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.springframework.data.neo4j.test;

import org.junit.jupiter.api.extension.AfterEachCallback;
import org.junit.jupiter.api.extension.BeforeAllCallback;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.ExtensionContext.Namespace;
import org.junit.jupiter.api.extension.ParameterContext;
import org.junit.jupiter.api.extension.ParameterResolver;

/**
 * Naive extension to capture logging output. It assumes that logback is used during tests as logger binding.
 *
 * @author Michael J. Simons
 * @soundtrack Various - Just The Best 90s
 */
public final class LogbackCapturingExtension implements BeforeAllCallback, AfterEachCallback, ParameterResolver {

	@Override
	public void beforeAll(ExtensionContext context) {
		getOutputCapture(context).start();
	}

	private LogbackCapture getOutputCapture(ExtensionContext context) {
		return getStore(context).getOrComputeIfAbsent(LogbackCapture.class);
	}

	private ExtensionContext.Store getStore(ExtensionContext context) {
		return context.getStore(Namespace.create(getClass()));
	}

	@Override
	public boolean supportsParameter(ParameterContext parameterContext, ExtensionContext extensionContext) {
		return parameterContext.getParameter().getType().isAssignableFrom(LogbackCapture.class);
	}

	@Override
	public Object resolveParameter(ParameterContext parameterContext, ExtensionContext extensionContext) {
		return getOutputCapture(extensionContext);
	}

	@Override
	public void afterEach(ExtensionContext context) {
		getOutputCapture(context).clear();
	}
}
