// Copyright 2019 The Nomulus Authors. All Rights Reserved.
//
// Licensed 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.gradle.api.tasks.testing.logging.TestExceptionFormat
import org.gradle.api.tasks.testing.logging.TestLogEvent

buildscript {
  if (rootProject.enableDependencyLocking.toBoolean()) {
    // Lock buildscript dependencies.
    configurations.classpath {
      resolutionStrategy.activateDependencyLocking()

      // log4j has high-profile security vulnerabilities. It's a transitive
      // dependency used by Gradle itself during build, and not strictly needed.
      exclude group: 'org.apache.logging.log4j'
    }
  }

  dependencies {
    classpath 'com.google.cloud.tools:appengine-gradle-plugin:2.4.1'
    classpath 'net.ltgt.gradle:gradle-errorprone-plugin:3.1.0'
    classpath 'org.sonatype.aether:aether-api:1.13.1'
    classpath 'org.sonatype.aether:aether-impl:1.13.1'
  }
}

plugins {
  // Java static analysis plugins.

  // Re-enable when compatible with Gradle 8
  // id 'nebula.lint' version '16.0.2'
  id 'net.ltgt.errorprone' version '3.1.0'
  id 'checkstyle'
  id 'com.github.johnrengelman.shadow' version '8.1.1'

  // NodeJs plugin
  id "com.github.node-gradle.node" version "3.0.1"

  id 'idea'
  id 'com.diffplug.spotless' version '6.20.0'

  id 'jacoco'
  id 'com.dorongold.task-tree' version '2.1.0'
}

dependencyLocking {
    lockAllConfigurations()
}

node {
  download = false
  version = "22.7.0"
}

wrapper {
  distributionType = Wrapper.DistributionType.ALL
}

apply from: 'dependencies.gradle'

apply from: 'dependency_lic.gradle'

apply from: 'utils.gradle'

tasks.build.dependsOn(tasks.checkLicense)

// Provide defaults for all of the project properties.

// Only do linting if the build is successful.
// Re-enable when compatible with Gradle 8
// gradleLint.autoLintAfterFailure = false

// Paths to main and test sources.
ext.projectRootDir = "${rootDir}"

// Tasks to deploy/stage all App Engine services
task deploy {
  group = 'deployment'
  description = 'Deploys all services to App Engine.'
}

task stage {
  group = 'deployment'
  description = 'Generates application directories for all services.'
}

def gcpProject = null

apply from: "${rootDir.path}/projects.gradle"

if (environment == '') {
    // Keep the project null, this will prevent deployment. Set the
    // environment to "alpha" because other code needs this property to
    // explode the war file.
    environment = 'alpha'
} else {
    gcpProject = projects[environment]
    if (gcpProject == null) {
        throw new GradleException("-Penvironment must be one of " +
                                  "${projects.keySet()}.")
    }
    project(':console-webapp').setProperty('configuration', environment)
}

rootProject.ext.environment = environment
rootProject.ext.gcpProject = gcpProject
rootProject.ext.baseDomain = baseDomains[environment]
rootProject.ext.prodOrSandboxEnv = environment in ['production', 'sandbox']

// Function to verify that the deployment parameters have been set.
def verifyDeploymentParams() {
    if (prodOrSandboxEnv) {
        // Do not deploy to prod or sandbox. Print a prominent error in bright red.
        System.err.println('\033[31;1m-----------------------------------------------------------------')
        System.err.println('*** DANGER WILL ROBINSON!')
        System.err.println('*** You may not deploy to production or sandbox from gradle.  Do a')
        System.err.println('*** release from Spinnaker, see deployment playbook.')
        System.err.println('-----------------------------------------------------------------')
        throw new GradleException('Aborting. See prominent error above.')
    } else if (gcpProject == null) {
        def error = 'You must specify -Penvironment={alpha,crash,qa}'
        System.err.println("\033[33;1m${error}\033[0m")
        throw GradleException("Aborting:  ${error}")
    }
}

// Closure that we can just drop into all of our deployment tasks.
rootProject.ext.verifyDeploymentConfig = {
    doFirst { verifyDeploymentParams() }
}

// Subproject configuration.

// Alias this since it collides with the closure variable name
def allowInsecure = allowInsecureProtocol

allprojects {
  // Skip no-op project
  if (project.name == 'services') return

  repositories {
    if (!mavenUrl.isEmpty()) {
      maven {
        println "Java dependencies: Using repo ${mavenUrl}..."
        url mavenUrl
        allowInsecureProtocol = allowInsecure == "true"
      }
    } else {
      println "Java dependencies: Using Maven Central..."
      mavenCentral()
      google()
      maven {
        url "https://packages.confluent.io/maven/"
        content {
          includeGroup "io.confluent"
        }
      }
    }
  }

  if (rootProject.enableCrossReferencing.toBoolean()) {
    gradle.projectsEvaluated {
      tasks.withType(JavaCompile) {
        options.fork = true
        options.forkOptions.executable =
          file("${System.env.JAVA_HOME}/bin/javac")
        options.compilerArgs = ["--add-exports",
                                "jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED",
                                "--add-exports",
                                "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED"]
        options.forkOptions.jvmArgs = ["-J--add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED",
                                       "-J--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED"]
      }
    }
  }
}

rootProject.ext {
  pyver = { exe ->
    try {
      ext.execInBash(
          exe + " -c 'import sys; print(sys.hexversion)' 2>/dev/null",
          "/") as Integer
    } catch (org.gradle.process.internal.ExecException e) {
      return -1;
    }
  }

  // Return the path to a usable python3 executable.
  getPythonExecutable = {
    // Find a python version greater than 3.7.3 (this is somewhat arbitrary, we
    // know we'd like at least 3.6, but 3.7.3 is the latest that ships with
    // Debian so it seems like that should be available anywhere).
    def MIN_PY_VER = 0x3070300
    if (pyver('python') >= MIN_PY_VER) {
      return 'python'
    } else if (pyver('/usr/bin/python3') >= MIN_PY_VER) {
      return '/usr/bin/python3'
    } else {
      throw new GradleException("No usable Python version found (build " +
                                "requires at least python 3.7.3)");
    }
  }
}

task runPresubmits(type: Exec) {

  args('config/presubmits.py')

  doFirst {
    executable getPythonExecutable()
  }
}

def javadocSource = []
def javadocClasspath = []
def javadocDependentTasks = []

def services = [':services:default',
                ':services:backend',
                ':services:bsa',
                ':services:tools',
                ':services:pubapi']

subprojects {
  // Skip no-op project
  if (project.name == 'services') return

  ext.createUberJar = {
      taskName,
      binaryName,
      mainClass,
      List<Configuration> configs = [project.configurations.runtimeClasspath],
      List<SourceSetOutput> srcOutput = [project.sourceSets.main.output],
      List<String> excludes = [] ->
    project.tasks.create(
        taskName, com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar) {
      mergeServiceFiles()
      archiveBaseName = binaryName
      if (mainClass != '') {
        manifest {
          attributes 'Main-Class': mainClass
        }
      }
      // Build as a multi-release jar since we've got member jars (e.g., dnsjava
      // and snakeyaml) that are multi-release.
      manifest {
        attributes 'Multi-Release': true
      }
      zip64 = true
      archiveClassifier = ''
      archiveVersion = ''
      configurations = configs
      from srcOutput
      // Excludes signature files that accompany some dependency jars, like
      // bonuncycastle. If they are present, only classes from those signed jars are
      // made available to the class loader.
      // see https://discuss.gradle.org/t/signing-a-custom-gradle-plugin-thats-downloaded-by-the-build-system-from-github/1365
      exclude "META-INF/*.SF", "META-INF/*.DSA", "META-INF/*.RSA"
      exclude excludes

      // We do seem to get duplicates when constructing uber-jars, either
      // this is a product of something in gradle 7 or a product of gradle 7
      // now giving an error about them when it didn't previously.
      duplicatesStrategy DuplicatesStrategy.WARN
    }
  }

  if (rootProject.enableDependencyLocking.toBoolean()) {
    buildscript {
      // Lock buildscript dependencies.
      configurations.classpath {
        resolutionStrategy.activateDependencyLocking()
      }
    }
  }

  afterEvaluate {
    if (rootProject.enableDependencyLocking.toBoolean()
        && project.name != 'integration') {
      // The ':integration' project runs server/schema integration tests using
      // dynamically specified jars with no transitive dependency. Therefore
      // dependency-locking does not make sense. Furthermore, during
      // evaluation it resolves the 'testRuntimeOnly' configuration, making it
      // immutable. Locking activation would trigger an invalid operation
      // exception.
      //
      // For all other projects, due to problem with the gradle-license-report
      // plugin, the dependencyLicenseReport configuration must opt out of
      // dependency-locking. See dependency_lic.gradle for the reason why.
      //
      // To selectively activate dependency locking without hardcoding them
      // in the 'configurations' block, the following code must run after
      // project evaluation, when all configurations have been created.
      configurations.each {
        if (it.name != 'dependencyLicenseReport' && it.name != 'integration') {
          it.resolutionStrategy.activateDependencyLocking()
        }
      }
    }
  }

  // Set up all of the deployment projects.
  if (services.contains(project.path)) {

    apply from: "${rootDir.path}/appengine_war.gradle"

    // Return early, do not apply the settings below.
    return
  }

  apply from: "${rootDir.path}/java_common.gradle"

  // When changing Java version here, be sure to update BEAM Java runtime:
  // search for `flex-template-base-image` and update the parameter value.
  // There are at least two instances, one in core/build.gradle, one in
  // release/stage_beam_pipeline.sh
  sourceCompatibility = JavaVersion.VERSION_21
  targetCompatibility = JavaVersion.VERSION_21

  project.tasks.test.dependsOn runPresubmits

  def commonlyExcludedResources = ['**/*.java', '**/BUILD']

  project.ext.javaDir = "${project.projectDir}/src/main/java"
  project.ext.javaTestDir = "${project.projectDir}/src/test/java"
  project.ext.resourcesSourceDir = "${project.projectDir}/src/main/resources"

  sourceSets {
    main {
      resources {
        srcDirs += project.ext.javaDir
        exclude commonlyExcludedResources
      }
    }
    test {
      resources {
        srcDirs += project.ext.javaTestDir
        exclude commonlyExcludedResources
      }
    }
  }

  // No need to produce javadoc for the jetty subproject, which has no APIs to
  // expose to users.
  if (project.name != 'jetty') {
    javadocSource << project.sourceSets.main.allJava
    javadocClasspath << project.sourceSets.main.runtimeClasspath
    javadocClasspath << "${buildDir}/generated/sources/annotationProcessor/java/main"
    javadocDependentTasks << project.tasks.compileJava
  }
}

// Force SDK download and deployment to be sequential, otherwise parallel tasks
// will fail. For SDK download, they will try to write to the same location to
// upgrade gcloud. For deployment, they will try to deploy different services to
// the same project at the same time.
for (int i = 1; i < services.size(); i++) {
  project("${services[i]}").downloadCloudSdk
          .dependsOn(project("${services[i - 1]}").downloadCloudSdk)
  project("${services[i]}").appengineDeployAll
          .dependsOn(project("${services[i - 1]}").appengineDeployAll)
}

// If "-P verboseTestOutput=true" is passed in, configure all subprojects to dump all of their
// output and final test status (pass/fail, errors) for each test class.
//
// Note that we can't do this in the main subprojects section above because that's evaluated before
// the subproject build files and the test tasks haven't been defined yet.  We have to do it from
// the projectsEvaluted hook, which gets called after the subprojects are configured.
if (verboseTestOutput.toBoolean()) {
  gradle.projectsEvaluated({
    subprojects {
      tasks.withType(Test) {
        testLogging {
          events TestLogEvent.FAILED, TestLogEvent.PASSED, TestLogEvent.SKIPPED,
              TestLogEvent.STANDARD_OUT, TestLogEvent.STANDARD_ERROR
          exceptionFormat TestExceptionFormat.FULL
          showExceptions true
          showCauses true
          showStackTraces true

          afterSuite { desc, result ->
            println "Results: ${result.resultType}, " +
                "${result.successfulTestCount}/${result.testCount} tests " +
                "passed, ${result.failedTestCount} failures.";
          }
        }
      }
    }
  })
}

task checkDependenciesDotGradle {

  doLast {
    Set<String> depsInUse = []
    allprojects {
      configurations.all {
        it.dependencies.findAll { it.group != null }.each {
          // Note: .toString() is required since GString should
          // not be mixed with Java Strings.
          depsInUse.add("${it.group}:${it.name}".toString())
        }
      }
    }

    def unusedDeps =
        rootProject.dependencyMap.keySet()
            .findAll { !depsInUse.contains(it) }
            .toSorted()

    if (unusedDeps.isEmpty()) {
      return
    }
    logger.error(
        "Unused dependencies in dependencies.gradle:\n${unusedDeps.toListString()}")
    throw new IllegalStateException(
        "The dependencies.gradle file should only contain direct dependencies.")
  }
}
tasks.build.dependsOn(tasks.checkDependenciesDotGradle)

rootProject.ext {
  invokeJavaDiffFormatScript = { action ->
    def javaHome = project.findProperty('org.gradle.java.home')
    def javaBin
    if (javaHome != null) {
      javaBin = "$javaHome/bin/java"
    } else {
      javaBin = ext.execInBash("which java", rootDir)
    }
    println("Running the formatting tool with $javaBin")
    def scriptDir = "${rootDir}/java-format"
    def workingDir = rootDir
    def formatDiffScript = "${scriptDir}/google-java-format-git-diff.sh"
    def pythonExe = getPythonExecutable()

    return ext.execInBash(
        "JAVA=${javaBin} PYTHON=${pythonExe} ${formatDiffScript} ${action}", "${workingDir}")
  }
}

// Checks if modified lines in Java source files need reformatting.
// Note that this task checks modified Java files in the entire repository.
task javaIncrementalFormatCheck {
  doLast {
    // We can only do this in a git tree.
    if (new File("${rootDir}/.git").exists()) {
      def checkResult = invokeJavaDiffFormatScript("check")
      if (checkResult == 'true') {
        throw new IllegalStateException(
            "Some Java files need to be reformatted. You may use the "
                + "'javaIncrementalFormatDryRun' task to review\n "
                + "the changes, or the 'javaIncrementalFormatApply' task "
                + "to reformat.")
      } else if (checkResult != 'false') {
        throw new RuntimeException(
            "Failed to invoke format check script:\n" + checkResult)
      }
      println("Incremental Java format check ok.")
    } else {
      println("Omitting format check: not in a git directory.")
    }
  }
}

// Shows how modified lines in Java source files will change after formatting.
// Note that this task checks modified Java files in the entire repository.
task javaIncrementalFormatDryRun {
  doLast {
    println("${invokeJavaDiffFormatScript("show")}")
  }
}
tasks.build.dependsOn(tasks.javaIncrementalFormatCheck)

// Checks if modified lines in Java source files need reformatting.
// Note that this task processes modified Java files in the entire repository.
task javaIncrementalFormatApply {
  doLast {
    invokeJavaDiffFormatScript("format")
  }
}

task javadoc(type: Javadoc) {
  source javadocSource
  // Java 11.0.17 has the following bug that affects annotation handling on
  // package-info.java:
  // https://bugs.openjdk.org/browse/JDK-8222091
  exclude "**/package-info.java"
  classpath = files(javadocClasspath)
  destinationDir = file("${buildDir}/docs/javadoc")
  options.encoding = "UTF-8"
  // In a lot of places we don't write @return so suppress warnings about that.
  // We don't report HTML lint errors because XJB-generated POJO files have
  // incorrect tags (like dangling </p> without the corresponding open tag.
  options.addBooleanOption('Xdoclint:all,-missing,-html', true)
  options.addBooleanOption("-allow-script-in-comments",true)
  options.tags = ["type:a:Generic Type",
                  "error:a:Expected Error",
                  "invariant:a:Guaranteed Property"]
}

tasks.build.dependsOn(tasks.javadoc)

// Task for doing development on core Nomulus.
// This fixes code formatting automatically as necessary, builds and tests the
// core Nomulus codebase, and runs all presubmits.
task coreDev {
  dependsOn 'javaIncrementalFormatApply'
  dependsOn 'console-webapp:applyFormatting'
  dependsOn 'javadoc'
  dependsOn 'checkDependenciesDotGradle'
  dependsOn 'checkLicense'
  dependsOn ':core:check'
  dependsOn 'assemble'
}

javadocDependentTasks.each { tasks.javadoc.dependsOn(it) }

// Runs the script, which deploys cloud scheduler and tasks based on the config
task deployCloudSchedulerAndQueue {
  doLast {
    def env = environment
    if (!prodOrSandboxEnv) {
      exec {
        workingDir "${rootDir}/release/builder/"
        commandLine 'go', 'run',
                "./deployCloudSchedulerAndQueue.go",
                "${rootDir}/core/src/main/java/google/registry/config/files/nomulus-config-${env}.yaml",
                "${rootDir}/core/src/main/java/google/registry/config/files/tasks/cloud-scheduler-tasks-${env}.xml",
                "domain-registry-${env}"
      }
      exec {
        workingDir "${rootDir}/release/builder/"
        commandLine 'go', 'run',
                "./deployCloudSchedulerAndQueue.go",
                "${rootDir}/core/src/main/java/google/registry/config/files/nomulus-config-${env}.yaml",
                "${rootDir}/core/src/main/java/google/registry/config/files/cloud-tasks-queue.xml",
                "domain-registry-${env}"
      }
    }
  }
}

// disable javadoc in subprojects, these will break because they don't have
// the correct classpath (see above).
gradle.taskGraph.whenReady { graph ->
  graph.getAllTasks().each { task ->
    def subprojectJavadoc = (task.path =~ /:.+:javadoc/)
    if (subprojectJavadoc) {
        println "Skipping ${task.path} for javadoc (only root javadoc works)"
        task.enabled = false
    }
  }
}