/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
 */


import org.elasticsearch.gradle.MavenFilteringHack
import org.elasticsearch.gradle.info.BuildParams
import org.elasticsearch.gradle.test.AntFixture
import org.elasticsearch.gradle.test.RestIntegTestTask
import org.elasticsearch.gradle.test.rest.YamlRestTestPlugin

import static org.elasticsearch.gradle.PropertyNormalization.IGNORE_VALUE

apply plugin: 'elasticsearch.yaml-rest-test'

dependencies {
  yamlRestTestImplementation project(':plugins:discovery-ec2')
}

restResources {
  restApi {
    includeCore '_common', 'cluster', 'nodes'
  }
}

final int ec2NumberOfNodes = 3

Map<String, Object> expansions = [
  'expected_nodes': ec2NumberOfNodes
]

processYamlRestTestResources {
  inputs.properties(expansions)
  MavenFilteringHack.filter(it, expansions)
}

// disable default yamlRestTest task, use spezialized ones below
yamlRestTest.enabled = false

/*
 * Test using various credential providers (see also https://docs.aws.amazon.com/sdk-for-java/v2/developer-guide/credentials.html):
 * - Elasticsearch Keystore (secure settings discovery.ec2.access_key and discovery.ec2.secret_key)
 * - Java system properties (aws.accessKeyId and aws.secretAccessKey)
 * - Environment variables (AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY)
 * - ECS container credentials (loaded from ECS if the environment variable AWS_CONTAINER_CREDENTIALS_RELATIVE_URI is set)
 * - Instance profile credentials (delivered through the EC2 metadata service)
 *
 * Notably missing is a test for the default credential profiles file, which is located at ~/.aws/credentials and would at least require a
 * custom Java security policy to work.
 */
['KeyStore', 'EnvVariables', 'SystemProperties', 'ContainerCredentials', 'InstanceProfile'].forEach { action ->
  AntFixture fixture = tasks.create(name: "ec2Fixture${action}", type: AntFixture) {
    dependsOn project.sourceSets.yamlRestTest.runtimeClasspath
    env 'CLASSPATH', "${-> project.sourceSets.yamlRestTest.runtimeClasspath.asPath}"
    executable = "${BuildParams.runtimeJavaHome}/bin/java"
    args 'org.elasticsearch.discovery.ec2.AmazonEC2Fixture', baseDir, "${buildDir}/testclusters/yamlRestTest${action}-1/config/unicast_hosts.txt"
  }

  tasks.create(name: "yamlRestTest${action}", type: RestIntegTestTask) {
    dependsOn fixture
  }
  SourceSetContainer sourceSets = project.getExtensions().getByType(SourceSetContainer.class);
  SourceSet yamlRestTestSourceSet = sourceSets.getByName(YamlRestTestPlugin.SOURCE_SET_NAME)
  "yamlRestTest${action}" {
    setTestClassesDirs(yamlRestTestSourceSet.getOutput().getClassesDirs())
    setClasspath(yamlRestTestSourceSet.getRuntimeClasspath())
  }
  check.dependsOn("yamlRestTest${action}")

  testClusters."yamlRestTest${action}" {
    numberOfNodes = ec2NumberOfNodes
    plugin ':plugins:discovery-ec2'

    setting 'discovery.seed_providers', 'ec2'
    setting 'network.host', '_ec2_'
    setting 'discovery.ec2.endpoint', { "http://${-> fixture.addressAndPort}" }, IGNORE_VALUE

    systemProperty "com.amazonaws.sdk.ec2MetadataServiceEndpointOverride", { "http://${-> fixture.addressAndPort}" }, IGNORE_VALUE
  }
}

// Extra config for KeyStore
testClusters.yamlRestTestKeyStore {
  keystore 'discovery.ec2.access_key', 'ec2_integration_test_access_key'
  keystore 'discovery.ec2.secret_key', 'ec2_integration_test_secret_key'
}

// Extra config for EnvVariables
testClusters.yamlRestTestEnvVariables {
  environment 'AWS_ACCESS_KEY_ID', 'ec2_integration_test_access_key'
  environment 'AWS_SECRET_ACCESS_KEY', 'ec2_integration_test_secret_key'
}

// Extra config for SystemProperties
testClusters.yamlRestTestSystemProperties {
  systemProperty 'aws.accessKeyId', 'ec2_integration_test_access_key'
  systemProperty 'aws.secretKey', 'ec2_integration_test_secret_key'
}

// Extra config for ContainerCredentials
ec2FixtureContainerCredentials.env 'ACTIVATE_CONTAINER_CREDENTIALS', true

testClusters.yamlRestTestContainerCredentials {
  environment 'AWS_CONTAINER_CREDENTIALS_FULL_URI',
    { "http://${-> tasks.findByName("ec2FixtureContainerCredentials").addressAndPort}/ecs_credentials_endpoint" }, IGNORE_VALUE
}

// Extra config for InstanceProfile
ec2FixtureInstanceProfile.env 'ACTIVATE_INSTANCE_PROFILE', true