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/*
 * Copyright The WildFly Authors
 * SPDX-License-Identifier: Apache-2.0
 */

package org.wildfly.arquillian.junit.condition;

import java.io.File;
import java.nio.file.Path;

import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.ParameterContext;
import org.junit.jupiter.api.extension.ParameterResolutionException;
import org.junit.jupiter.api.extension.ParameterResolver;
import org.wildfly.arquillian.junit.annotations.JBossHome;

/**
 * Resolves the {@code jboss.home} system property or if not set the {@code JBOSS_HOME} environment variable. If neither
 * are set a {@link ParameterResolutionException} is thrown.
 *
 * @author James R. Perkins
 */
public class JBossHomeParameterResolver implements ParameterResolver {
    @Override
    public boolean supportsParameter(final ParameterContext parameterContext, final ExtensionContext extensionContext)
            throws ParameterResolutionException {
        // Ignore parameters not annotated with @JBossHome
        if (!parameterContext.isAnnotated(JBossHome.class)) {
            return false;
        }
        final Class parameterType = parameterContext.getParameter().getType();
        return parameterType.isAssignableFrom(Path.class) || parameterType.isAssignableFrom(String.class)
                || parameterType.isAssignableFrom(File.class);
    }

    @Override
    public Object resolveParameter(final ParameterContext parameterContext, final ExtensionContext extensionContext)
            throws ParameterResolutionException {
        final String value = SecurityActions.resolveJBossHome();
        if (value == null) {
            throw new ParameterResolutionException(
                    "Could not resolve the jboss.home system property or JBOSS_HOME environment variable.");
        }
        final Path path = Path.of(value).toAbsolutePath();
        final Class parameterType = parameterContext.getParameter().getType();
        if (parameterType.isAssignableFrom(Path.class)) {
            return path;
        }
        if (parameterType.isAssignableFrom(String.class)) {
            return path.toString();
        }
        if (parameterType.isAssignableFrom(File.class)) {
            return path.toFile();
        }
        throw new ParameterResolutionException(
                "Cannot convert the JBoss Home directory into a type of " + parameterType.getName());
    }
}