/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

import com.avast.gradle.dockercompose.tasks.ComposePull
import com.github.jengelman.gradle.plugins.shadow.ShadowPlugin
import de.thetaphi.forbiddenapis.gradle.ForbiddenApisPlugin
import org.apache.tools.ant.taskdefs.condition.Os
import org.elasticsearch.gradle.internal.BuildPlugin
import org.elasticsearch.gradle.Version
import org.elasticsearch.gradle.VersionProperties
import org.elasticsearch.gradle.internal.info.BuildParams
import org.elasticsearch.gradle.plugin.PluginBuildPlugin
import org.gradle.plugins.ide.eclipse.model.AccessRule
import org.gradle.plugins.ide.eclipse.model.SourceFolder
import org.gradle.util.DistributionLocator
import org.gradle.util.GradleVersion
import static org.elasticsearch.gradle.util.GradleUtils.maybeConfigure
import org.gradle.plugins.ide.eclipse.model.ProjectDependency
import org.elasticsearch.gradle.testclusters.TestClustersPlugin
import org.elasticsearch.gradle.internal.test.RestTestBasePlugin
import org.elasticsearch.gradle.internal.InternalPluginBuildPlugin
import org.elasticsearch.gradle.internal.InternalTestClustersPlugin

plugins {
  id 'lifecycle-base'
  id 'elasticsearch.docker-support'
  id 'elasticsearch.global-build-info'
  id 'elasticsearch.build-scan'
  id 'elasticsearch.build-complete'
  id 'elasticsearch.jdk-download'
  id 'elasticsearch.internal-distribution-download'
  id 'elasticsearch.runtime-jdk-provision'
  id 'elasticsearch.ide'
  id 'elasticsearch.forbidden-dependencies'
  id 'elasticsearch.formatting'
  id 'elasticsearch.local-distribution'
  id 'elasticsearch.fips'
  id 'elasticsearch.internal-testclusters'
  id 'elasticsearch.run'
  id "com.diffplug.spotless" version "5.12.0" apply false
}


// common maven publishing configuration
allprojects {
  group = 'org.elasticsearch'
  version = VersionProperties.elasticsearch
  description = "Elasticsearch subproject ${project.path}"
}

String licenseCommit
if (VersionProperties.elasticsearch.toString().endsWith('-SNAPSHOT')) {
  licenseCommit = BuildParams.gitRevision ?: "master" // leniency for non git builds
} else {
  licenseCommit = "v${version}"
}
String elasticLicenseUrl = "https://raw.githubusercontent.com/elastic/elasticsearch/${licenseCommit}/licenses/ELASTIC-LICENSE-2.0.txt"

subprojects {
  // We disable this plugin for now till we shaked out the issues we see
  // e.g. see https://github.com/elastic/elasticsearch/issues/72169
  // apply plugin:'elasticsearch.internal-test-rerun'

  // Default to the SSPL+Elastic dual license
  project.ext.projectLicenses = [
    'Server Side Public License, v 1': 'https://www.mongodb.com/licensing/server-side-public-license',
    'Elastic License 2.0': elasticLicenseUrl
  ]

  // But stick the Elastic license url in project.ext so we can get it if we need to switch to it
  project.ext.elasticLicenseUrl = elasticLicenseUrl

  // we only use maven publish to add tasks for pom generation
  plugins.withType(MavenPublishPlugin).whenPluginAdded {
    publishing {
      publications {
        // add license information to generated poms
        all {
          pom.withXml { XmlProvider xml ->
            Node node = xml.asNode()
            node.appendNode('inceptionYear', '2009')

            Node licensesNode = node.appendNode('licenses')
            project.ext.projectLicenses.forEach { licenseName, licenseUrl ->
              Node license = licensesNode.appendNode('license')
              license.appendNode('name', licenseName)
              license.appendNode('url', licenseUrl)
              license.appendNode('distribution', 'repo')
            }

            Node developer = node.appendNode('developers').appendNode('developer')
            developer.appendNode('name', 'Elastic')
            developer.appendNode('url', 'https://www.elastic.co')
          }
        }
      }
      repositories {
        maven {
          name = 'test'
          url = "${rootProject.buildDir}/local-test-repo"
        }
      }
    }
  }

  plugins.withType(BuildPlugin).whenPluginAdded {
    project.licenseFile = project.rootProject.file('licenses/SSPL-1.0+ELASTIC-LICENSE-2.0.txt')
    project.noticeFile = project.rootProject.file('NOTICE.txt')
  }

  plugins.withType(InternalPluginBuildPlugin).whenPluginAdded {
    project.dependencies {
      compileOnly project(":server")
      testImplementation project(":test:framework")
    }
  }

  // Ultimately the RestTestBase Plugin should apply the InternalTestClusters Plugin itself instead of TestClusters
  // but this requires major rework on the func test infrastructure.
  // TODO: This will be addressed once we have https://github.com/elastic/elasticsearch/issues/71593 resolved
  project.plugins.withType(RestTestBasePlugin) {
    project.plugins.apply(InternalTestClustersPlugin)
  }
}

/**
 * This is a convenient method for declaring test artifact dependencies provided by the internal
 * test artifact plugin. It replaces basically the longer dependency notation with explicit capability
 * declaration like this:
 *
 * testImplementation(project(xpackModule('repositories-metering-api'))) {
 *    capabilities {
 *         requireCapability("org.elasticsearch.gradle:repositories-metering-api-test-artifacts")
 *    }
 * }
 *
 * */
ext.testArtifact = { p, String name = "test" ->
  def projectDependency = p.dependencies.create(p)
  projectDependency.capabilities {
    requireCapabilities("org.elasticsearch.gradle:${projectDependency.name}-${name}-artifacts")
  };
}

tasks.register("updateCIBwcVersions") {
  doLast {
    File yml = file(".ci/bwcVersions")
    yml.text = ""
    yml << "BWC_VERSION:\n"
    BuildParams.bwcVersions.indexCompatible.each {
      yml << "  - \"$it\"\n"
    }
  }
}

// build metadata from previous build, contains eg hashes for bwc builds
String buildMetadataValue = System.getenv('BUILD_METADATA')
if (buildMetadataValue == null) {
  buildMetadataValue = ''
}
Map<String, String> buildMetadataMap = buildMetadataValue.tokenize(';').collectEntries {
  def (String key, String value) = it.split('=')
  return [key, value]
}

// injecting groovy property variables into all projects
allprojects {
  project.ext {
    // for ide hacks...
    isEclipse = System.getProperty("eclipse.launcher") != null ||   // Detects gradle launched from Eclipse's IDE
      System.getProperty("eclipse.application") != null ||    // Detects gradle launched from the Eclipse compiler server
      gradle.startParameter.taskNames.contains('eclipse') ||  // Detects gradle launched from the command line to do eclipse stuff
      gradle.startParameter.taskNames.contains('cleanEclipse')

    buildMetadata = buildMetadataMap
  }
}

tasks.register("verifyVersions") {
  doLast {
    if (gradle.startParameter.isOffline()) {
      throw new GradleException("Must run in online mode to verify versions")
    }
    // Read the list from maven central.
    // Fetch the metadata and parse the xml into Version instances because it's more straight forward here
    // rather than bwcVersion ( VersionCollection ).
    new URL('https://repo1.maven.org/maven2/org/elasticsearch/elasticsearch/maven-metadata.xml').openStream().withStream { s ->
      BuildParams.bwcVersions.compareToAuthoritative(
        new XmlParser().parse(s)
          .versioning.versions.version
          .collect { it.text() }.findAll { it ==~ /\d+\.\d+\.\d+/ }
          .collect { Version.fromString(it) }
      )
    }
    String ciYml = file(".ci/bwcVersions").text
    BuildParams.bwcVersions.indexCompatible.each {
      if (ciYml.contains("\"$it\"\n") == false) {
        throw new Exception(".ci/bwcVersions is outdated, run `./gradlew updateCIBwcVersions` and check in the results");
      }
    }
  }
}

/*
 * When adding backcompat behavior that spans major versions, temporarily
 * disabling the backcompat tests is necessary. This flag controls
 * the enabled state of every bwc task. It should be set back to true
 * after the backport of the backcompat code is complete.
 */

boolean bwc_tests_enabled = true
// place a PR link here when committing bwc changes:
String bwc_tests_disabled_issue = ""
/*
 * FIPS 140-2 behavior was fixed in 7.11.0. Before that there is no way to run elasticsearch in a
 * JVM that is properly configured to be in fips mode with BCFIPS. For now we need to disable
 * all bwc testing in fips mode.
 */

if ( BuildParams.inFipsJvm ) {
  bwc_tests_enabled = false
  bwc_tests_disabled_issue = "https://github.com/elastic/elasticsearch/issues/66772"
}
if (bwc_tests_enabled == false) {
  if (bwc_tests_disabled_issue.isEmpty()) {
    throw new GradleException("bwc_tests_disabled_issue must be set when bwc_tests_enabled == false")
  }
  println "========================= WARNING ========================="
  println "         Backwards compatibility tests are disabled!"
  println "See ${bwc_tests_disabled_issue}"
  println "==========================================================="
}
if (project.gradle.startParameter.taskNames.find { it.startsWith("checkPart") } != null) {
  // Disable BWC tests for checkPart* tasks as it's expected that this will run un it's own check
  bwc_tests_enabled = false
}

subprojects {
  ext.bwc_tests_enabled = bwc_tests_enabled
}

tasks.register("verifyBwcTestsEnabled") {
  doLast {
    if (bwc_tests_enabled == false) {
      throw new GradleException('Bwc tests are disabled. They must be re-enabled after completing backcompat behavior backporting.')
    }
  }
}

tasks.register("branchConsistency") {
  description 'Ensures this branch is internally consistent. For example, that versions constants match released versions.'
  group 'Verification'
  dependsOn ":verifyVersions", ":verifyBwcTestsEnabled"
}

allprojects {
  // ignore missing javadocs
  tasks.withType(Javadoc).configureEach { Javadoc javadoc ->
    // the -quiet here is because of a bug in gradle, in that adding a string option
    // by itself is not added to the options. By adding quiet, both this option and
    // the "value" -quiet is added, separated by a space. This is ok since the javadoc
    // command already adds -quiet, so we are just duplicating it
    // see https://discuss.gradle.org/t/add-custom-javadoc-option-that-does-not-take-an-argument/5959
    javadoc.options.encoding = 'UTF8'
    javadoc.options.addStringOption('Xdoclint:all,-missing', '-quiet')
  }

  project.afterEvaluate {
    // Handle javadoc dependencies across projects. Order matters: the linksOffline for
    // org.elasticsearch:elasticsearch must be the last one or all the links for the
    // other packages (e.g org.elasticsearch.client) will point to server rather than
    // their own artifacts.
    if (project.plugins.hasPlugin(BuildPlugin) || project.plugins.hasPlugin(PluginBuildPlugin)) {
      String artifactsHost = VersionProperties.elasticsearch.endsWith("-SNAPSHOT") ? "https://snapshots.elastic.co" : "https://artifacts.elastic.co"
      Closure sortClosure = { a, b -> b.group <=> a.group }
      Closure depJavadocClosure = { shadowed, dep ->
        if ((dep instanceof ProjectDependency) == false) {
          return
        }
        Project upstreamProject = dep.dependencyProject
        if (upstreamProject == null) {
          return
        }
        if (shadowed) {
          /*
           * Include the source of shadowed upstream projects so we don't
           * have to publish their javadoc.
           */
          project.evaluationDependsOn(upstreamProject.path)
          project.javadoc.source += upstreamProject.javadoc.source
          /*
           * Instead we need the upstream project's javadoc classpath so
           * we don't barf on the classes that it references.
           */
          project.javadoc.classpath += upstreamProject.javadoc.classpath
        } else {
          // Link to non-shadowed dependant projects
          project.javadoc.dependsOn "${upstreamProject.path}:javadoc"
          String externalLinkName = upstreamProject.archivesBaseName
          String artifactPath = dep.group.replaceAll('\\.', '/') + '/' + externalLinkName.replaceAll('\\.', '/') + '/' + dep.version
          project.javadoc.options.linksOffline artifactsHost + "/javadoc/" + artifactPath, "${upstreamProject.buildDir}/docs/javadoc/"
        }
      }
      boolean hasShadow = project.plugins.hasPlugin(ShadowPlugin)
      project.configurations.compileClasspath.dependencies
        .findAll()
        .toSorted(sortClosure)
        .each({ c -> depJavadocClosure(hasShadow, c) })
      project.configurations.compileOnly.dependencies
        .findAll()
        .toSorted(sortClosure)
        .each({ c -> depJavadocClosure(false, c) })
      if (hasShadow) {
        // include any dependencies for shadow JAR projects that are *not* bundled in the shadow JAR
        project.configurations.shadow.dependencies
          .findAll()
          .toSorted(sortClosure)
          .each({ c -> depJavadocClosure(false, c) })
      }
    }
  }
}

// Ensure similar tasks in dependent projects run first. The projectsEvaluated here is
// important because, while dependencies.all will pickup future dependencies,
// it is not necessarily true that the task exists in both projects at the time
// the dependency is added.
gradle.projectsEvaluated {
  allprojects {
    if (project.path == ':test:framework') {
      // :test:framework:test cannot run before and after :server:test
      return
    }
    tasks.matching { it.name.equals('integTest')}.configureEach {integTestTask ->
      integTestTask.mustRunAfter tasks.matching { it.name.equals("test") }
    }

    configurations.matching { it.canBeResolved }.all { Configuration configuration ->
      dependencies.matching { it instanceof ProjectDependency }.all { ProjectDependency dep ->
        Project upstreamProject = dep.dependencyProject
        if (project.path != upstreamProject?.path) {
          for (String taskName : ['test', 'integTest']) {
            project.tasks.matching { it.name == taskName }.configureEach {task ->
              task.shouldRunAfter(upstreamProject.tasks.matching { upStreamTask -> upStreamTask.name == taskName })
            }
          }
        }
      }
    }
  }
}

// eclipse configuration
allprojects {
  apply plugin: 'eclipse'
  // Name all the non-root projects after their path so that paths get grouped together when imported into eclipse.
  if (path != ':') {
    eclipse.project.name = path
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
      eclipse.project.name = eclipse.project.name.replace(':', '_')
    }
  }

  plugins.withType(JavaBasePlugin) {
    java.modularity.inferModulePath.set(false)
    eclipse.classpath.file.whenMerged { classpath ->
      /*
       * give each source folder a unique corresponding output folder
       * outside of the usual `build` folder. We can't put the build
       * in the usual build folder because eclipse becomes *very* sad
       * if we delete it. Which `gradlew clean` does all the time.
       */
      int i = 0;
      classpath.entries.findAll { it instanceof SourceFolder }.each { folder ->
        i++;
        folder.output = 'out/eclipse/' + i
      }

      // Starting with Gradle 6.7 test dependencies are not exposed by eclipse
      // projects by default. This breaks project dependencies using the `java-test-fixtures` plugin
      // or dependencies on other projects manually declared testArtifacts configurations
      // This issue is tracked in gradle issue tracker.
      // See https://github.com/gradle/gradle/issues/14932 for further details
      classpath.entries.findAll {
        it instanceof ProjectDependency
      }.each {
        it.entryAttributes.remove('without_test_code')
      }
    }
  }
  /*
   * Allow accessing com/sun/net/httpserver in projects that have
   * configured forbidden apis to allow it.
   */
  plugins.withType(ForbiddenApisPlugin) {
    eclipse.classpath.file.whenMerged { classpath ->
      if (false == forbiddenApisTest.bundledSignatures.contains('jdk-non-portable')) {
        classpath.entries
          .findAll { it.kind == "con" && it.toString().contains("org.eclipse.jdt.launching.JRE_CONTAINER") }
          .each {
            it.accessRules.add(new AccessRule("accessible", "com/sun/net/httpserver/*"))
          }
      }
    }
  }

  File licenseHeaderFile
  String prefix = ':x-pack'
  if (Os.isFamily(Os.FAMILY_WINDOWS)) {
    prefix = prefix.replace(':', '_')
  }
  if (eclipse.project.name.startsWith(prefix)) {
    licenseHeaderFile = new File(project.rootDir, 'buildSrc/src/main/resources/license-headers/elastic-license-2.0-header.txt')
  } else {
    licenseHeaderFile = new File(project.rootDir, 'buildSrc/src/main/resources/license-headers/sspl+elastic-license-header.txt')
  }

  String lineSeparator = Os.isFamily(Os.FAMILY_WINDOWS) ? '\\\\r\\\\n' : '\\\\n'
  String licenseHeader = licenseHeaderFile.getText('UTF-8').replace(System.lineSeparator(), lineSeparator)
  tasks.register('copyEclipseSettings', Copy) {
    mustRunAfter 'wipeEclipseSettings'
    // TODO: "package this up" for external builds
    from new File(project.rootDir, 'buildSrc/src/main/resources/eclipse.settings')
    into '.settings'
    filter { it.replaceAll('@@LICENSE_HEADER_TEXT@@', licenseHeader) }
  }
  // otherwise .settings is not nuked entirely
  tasks.register('wipeEclipseSettings', Delete) {
    delete '.settings'
  }
  tasks.named('cleanEclipse') { dependsOn 'wipeEclipseSettings' }
  // otherwise the eclipse merging is *super confusing*
  tasks.named('eclipse') { dependsOn 'cleanEclipse', 'copyEclipseSettings' }
}

tasks.named("wrapper").configure {
  distributionType = 'ALL'
  doLast {
    final DistributionLocator locator = new DistributionLocator()
    final GradleVersion version = GradleVersion.version(wrapper.gradleVersion)
    final URI distributionUri = locator.getDistributionFor(version, wrapper.distributionType.name().toLowerCase(Locale.ENGLISH))
    final URI sha256Uri = new URI(distributionUri.toString() + ".sha256")
    final String sha256Sum = new String(sha256Uri.toURL().bytes)
    wrapper.getPropertiesFile() << "distributionSha256Sum=${sha256Sum}\n"
    println "Added checksum to wrapper properties"
    // Update build-tools to reflect the Gradle upgrade
    // TODO: we can remove this once we have tests to make sure older versions work.
    project(':build-tools').file('src/main/resources/minimumGradleVersion').text = gradleVersion
    println "Updated minimum Gradle Version"
  }
}

gradle.projectsEvaluated {
  subprojects {
    /*
     * Remove assemble/dependenciesInfo on all qa projects because we don't
     * need to publish artifacts for them.
     */
    if (project.name.equals('qa') || project.path.contains(':qa:')) {
      maybeConfigure(project.tasks, 'assemble') {
        it.enabled = false
      }
      maybeConfigure(project.tasks, 'dependenciesInfo') {
        it.enabled = false
      }
      maybeConfigure(project.tasks, 'dependenciesGraph') {
        it.enabled = false
      }
    }
  }
  // Having the same group and name for distinct projects causes Gradle to consider them equal when resolving
  // dependencies leading to hard to debug failures. Run a check across all project to prevent this from happening.
  // see: https://github.com/gradle/gradle/issues/847
  Map coordsToProject = [:]
  project.allprojects.forEach { p ->
    String coords = "${p.group}:${p.name}"
    if (false == coordsToProject.putIfAbsent(coords, p)) {
      throw new GradleException(
        "Detected that two projects: ${p.path} and ${coordsToProject[coords].path} " +
          "have the same name and group: ${coords}. " +
          "This doesn't currently work correctly in Gradle, see: " +
          "https://github.com/gradle/gradle/issues/847"
      )
    }
  }
}

allprojects {
  tasks.register('resolveAllDependencies', org.elasticsearch.gradle.internal.ResolveAllDependencies) {
    configs = project.configurations
    if (project.path.contains("fixture")) {
      dependsOn tasks.withType(ComposePull)
    }
  }

  // helper task to print direct dependencies of a single task
  project.tasks.addRule("Pattern: <taskName>Dependencies") { String taskName ->
    if (taskName.endsWith("Dependencies") == false) {
      return
    }
    if (project.tasks.findByName(taskName) != null) {
      return
    }
    String realTaskName = taskName.substring(0, taskName.length() - "Dependencies".length())
    Task realTask = project.tasks.findByName(realTaskName)
    if (realTask == null) {
      return
    }
    project.tasks.register(taskName) {
      doLast {
        println("${realTask.path} dependencies:")
        for (Task dep : realTask.getTaskDependencies().getDependencies(realTask)) {
          println("  - ${dep.path}")
        }
      }
    }
  }

  def checkPart1 = tasks.register('checkPart1')
  def checkPart2 = tasks.register('checkPart2')
  plugins.withId('lifecycle-base') {
    if (project.path.startsWith(":x-pack:")) {
      checkPart2.configure { dependsOn 'check' }
    } else {
      checkPart1.configure { dependsOn 'check' }
    }
  }
}

subprojects {
  project.ext.disableTasks = { String... tasknames ->
    for (String taskname : tasknames) {
      project.tasks.named(taskname).configure { enabled = false }
    }
  }
}

subprojects { Project subproj ->
  plugins.withType(TestClustersPlugin).whenPluginAdded {
    testClusters.all {
      systemProperty "ingest.geoip.downloader.enabled.default", "false"
    }
  }
}