import java.nio.file.Path
import java.nio.file.Paths
import java.nio.file.Files

apply plugin: 'elasticsearch.vagrantsupport'
apply plugin: 'elasticsearch.standalone-rest-test'
apply plugin: 'elasticsearch.rest-test'

dependencies {
    testCompile "org.elasticsearch.plugin:x-pack-core:${version}"
    testCompile project(path: xpackModule('core'), configuration: 'testArtifacts')
    testCompile project(path: xpackModule('security'), configuration: 'testArtifacts')
}

// MIT Kerberos Vagrant Testing Fixture
String box = "krb5kdc"
Map<String,String> vagrantEnvVars = [
    'VAGRANT_CWD'           : "${project(':test:fixtures:krb5kdc-fixture').projectDir}",
    'VAGRANT_VAGRANTFILE'   : 'Vagrantfile',
    'VAGRANT_PROJECT_DIR'   : "${project(':test:fixtures:krb5kdc-fixture').projectDir}"
]

task krb5kdcUpdate(type: org.elasticsearch.gradle.vagrant.VagrantCommandTask) {
    command 'box'
    subcommand 'update'
    boxName box
    environmentVars vagrantEnvVars
    dependsOn "vagrantCheckVersion", "virtualboxCheckVersion"
}

task krb5kdcFixture(type: org.elasticsearch.gradle.test.VagrantFixture) {
    command 'up'
    args '--provision', '--provider', 'virtualbox'
    boxName box
    environmentVars vagrantEnvVars
    dependsOn krb5kdcUpdate
}

// lazily resolve to avoid any slowdowns from DNS lookups prior to when we need this value
Object httpPrincipal = new Object() {
    @Override
    String toString() {
        InetAddress resolvedAddress = InetAddress.getByName('127.0.0.1')
        return "HTTP/" + resolvedAddress.getCanonicalHostName()
    }
}

String realm = "BUILD.ELASTIC.CO"

task 'addPrincipal#peppa'(type: org.elasticsearch.gradle.vagrant.VagrantCommandTask) {
    command 'ssh'
    args '--command', "sudo bash /vagrant/src/main/resources/provision/addprinc.sh peppa "
    boxName box
    environmentVars vagrantEnvVars
    dependsOn krb5kdcFixture
}

task 'addPrincipal#george'(type: org.elasticsearch.gradle.vagrant.VagrantCommandTask) {
    command 'ssh'
    args '--command', "sudo bash /vagrant/src/main/resources/provision/addprinc.sh george dino"
    boxName box
    environmentVars vagrantEnvVars
    dependsOn krb5kdcFixture
}

task 'addPrincipal#HTTP'(type: org.elasticsearch.gradle.vagrant.VagrantCommandTask) {
    command 'ssh'
    args '--command', "sudo bash /vagrant/src/main/resources/provision/addprinc.sh $httpPrincipal"
    boxName box
    environmentVars vagrantEnvVars
    dependsOn krb5kdcFixture
}

task krb5AddPrincipals { dependsOn krb5kdcFixture, 'addPrincipal#peppa', 'addPrincipal#george', 'addPrincipal#HTTP' }

def generatedResources = "$buildDir/generated-resources/keytabs"
task copyKeytabToGeneratedResources(type: Copy) {
    Path peppaKeytab = project(':test:fixtures:krb5kdc-fixture').buildDir.toPath().resolve("keytabs").resolve("peppa.keytab").toAbsolutePath()
    from peppaKeytab;
    into generatedResources
    dependsOn krb5AddPrincipals
}

integTestCluster {
    // force localhost IPv4 otherwise it is a chicken and egg problem where we need the keytab for the hostname when starting the cluster
    // but do not know the exact address that is first in the http ports file
    setting 'http.host', '127.0.0.1'
    setting 'xpack.license.self_generated.type', 'trial'
    setting 'xpack.security.enabled', 'true'
    setting 'xpack.security.authc.realms.file.type', 'file'
    setting 'xpack.security.authc.realms.file.order', '0'
    setting 'xpack.ml.enabled', 'false'
    setting 'xpack.security.audit.enabled', 'true'
    // Kerberos realm
    setting 'xpack.security.authc.realms.kerberos.type', 'kerberos'
    setting 'xpack.security.authc.realms.kerberos.order', '1'
    setting 'xpack.security.authc.realms.kerberos.keytab.path', 'es.keytab'
    setting 'xpack.security.authc.realms.kerberos.krb.debug', 'true'
    setting 'xpack.security.authc.realms.kerberos.remove_realm_name', 'false'

    Path krb5conf = project(':test:fixtures:krb5kdc-fixture').buildDir.toPath().resolve("conf").resolve("krb5.conf").toAbsolutePath()
    String jvmArgsStr = " -Djava.security.krb5.conf=${krb5conf}" + " -Dsun.security.krb5.debug=true"
    jvmArgs jvmArgsStr
    Path esKeytab = project(':test:fixtures:krb5kdc-fixture').buildDir.toPath().resolve("keytabs")
            .resolve("$httpPrincipal".replace('/', '_') + ".keytab").toAbsolutePath()
    extraConfigFile("es.keytab", "${esKeytab}")

    setupCommand 'setupTestAdmin',
            'bin/elasticsearch-users', 'useradd', "test_admin", '-p', 'x-pack-test-password', '-r', "superuser"

    waitCondition = { node, ant ->
        File tmpFile = new File(node.cwd, 'wait.success')
        ant.get(src: "http://${node.httpUri()}/_cluster/health?wait_for_nodes=>=${numNodes}&wait_for_status=yellow",
        dest: tmpFile.toString(),
        username: 'test_admin',
        password: 'x-pack-test-password',
        ignoreerrors: true,
        retries: 10)
        return tmpFile.exists()
    }

}

integTestRunner {
    Path peppaKeytab = Paths.get("${project.buildDir}", "generated-resources", "keytabs", "peppa.keytab")
    systemProperty 'test.userkt', "peppa@${realm}"
    systemProperty 'test.userkt.keytab', "${peppaKeytab}"
    systemProperty 'test.userpwd', "george@${realm}"
    systemProperty 'test.userpwd.password', "dino"
    systemProperty 'tests.security.manager', 'true'
    Path krb5conf = project(':test:fixtures:krb5kdc-fixture').buildDir.toPath().resolve("conf").resolve("krb5.conf").toAbsolutePath()
    List jvmargs = ["-Djava.security.krb5.conf=${krb5conf}","-Dsun.security.krb5.debug=true"]
    jvmArgs jvmargs
}

if (project.rootProject.vagrantSupported == false) {
    integTest.enabled = false
} else {
    project.sourceSets.test.output.dir(generatedResources)
    integTestCluster.dependsOn krb5AddPrincipals, krb5kdcFixture, copyKeytabToGeneratedResources
    integTest.finalizedBy project(':test:fixtures:krb5kdc-fixture').halt
}