/*
 * 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.jclouds.chef.compute.internal;

import static com.google.common.base.Throwables.propagate;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.concurrent.ConcurrentHashMap;

import org.jclouds.Constants;
import org.jclouds.ContextBuilder;
import org.jclouds.apis.BaseViewLiveTest;
import org.jclouds.chef.ChefContext;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.compute.domain.TemplateBuilderSpec;
import org.jclouds.domain.LoginCredentials;
import org.jclouds.domain.LoginCredentials.Builder;
import org.jclouds.rest.config.CredentialStoreModule;
import org.jclouds.sshj.config.SshjSshClientModule;
import org.testng.annotations.AfterClass;

import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.io.ByteSource;
import com.google.common.io.Closeables;
import com.google.common.io.InputSupplier;
import com.google.inject.Module;

public abstract class BaseComputeServiceIntegratedChefClientLiveTest extends BaseViewLiveTest<ChefContext> {

   protected TemplateBuilderSpec template;
   protected LoginCredentials loginCredentials = LoginCredentials.builder().user("root").build();

   // isolate tests from each other, as default credentialStore is static
   protected Module credentialStoreModule = new CredentialStoreModule(new ConcurrentHashMap<String, ByteSource>());

   private String computeProvider;

   protected Properties setupComputeProperties() {
      Properties overrides = new Properties();
      overrides.setProperty(Constants.PROPERTY_TRUST_ALL_CERTS, "true");
      overrides.setProperty(Constants.PROPERTY_RELAX_HOSTNAME, "true");
      computeProvider = setIfTestSystemPropertyPresent(overrides, provider + ".compute.provider");
      setIfTestSystemPropertyPresent(overrides, provider + ".compute.identity");
      setIfTestSystemPropertyPresent(overrides, provider + ".compute.credential");
      setIfTestSystemPropertyPresent(overrides, provider + ".compute.endpoint");
      setIfTestSystemPropertyPresent(overrides, provider + ".compute.api-version");
      setIfTestSystemPropertyPresent(overrides, provider + ".compute.build-version");
      String spec = setIfTestSystemPropertyPresent(overrides, provider + ".compute.template");
      if (spec != null) {
         template = TemplateBuilderSpec.parse(spec);
         if (template.getLoginUser() != null) {
            Iterable<String> userPass = Splitter.on(':').split(template.getLoginUser());
            Builder loginCredentialsBuilder = LoginCredentials.builder();
            loginCredentialsBuilder.user(Iterables.get(userPass, 0));
            if (Iterables.size(userPass) == 2)
               loginCredentialsBuilder.password(Iterables.get(userPass, 1));
            if (template.getAuthenticateSudo() != null)
               loginCredentialsBuilder.authenticateSudo(template.getAuthenticateSudo());
            loginCredentials = loginCredentialsBuilder.build();
         }
      }
      return overrides;
   }

   @Override
   protected Iterable<Module> setupModules() {
      return ImmutableSet.<Module> of(getLoggingModule(), credentialStoreModule, getSshModule());
   }

   protected Module getSshModule() {
      return new SshjSshClientModule();
   }

   protected volatile ComputeServiceContext computeContext;

   @Override
   protected void initializeContext() {
      super.initializeContext();
      computeContext = ContextBuilder.newBuilder(computeProvider).modules(setupModules())
            .overrides(setupComputeProperties()).buildView(ComputeServiceContext.class);
   }

   @AfterClass(groups = { "integration", "live" })
   @Override
   protected void tearDownContext() {
      try {
         Closeables.close(computeContext, true);
      } catch (IOException e) {
         throw propagate(e);
      } finally {
         super.tearDownContext();
      }
   }
}