import net.ltgt.gradle.errorprone.CheckSeverity

plugins {
  id 'com.diffplug.gradle.spotless' version '3.13.0'
  id 'com.palantir.git-version' version '0.10.0'
  id 'io.spring.dependency-management' version '1.0.4.RELEASE'
  id 'com.github.hierynomus.license' version '0.14.0'
  id 'net.ltgt.errorprone' version '0.6'
  id 'me.champeau.gradle.jmh' version '0.4.5' apply false
  id 'com.jfrog.bintray' version '1.7.3'
}

apply from: './versions.gradle'

defaultTasks 'build', 'checkLicenses', 'javadoc'

def buildAliases = ['dev': [
    'spotlessApply',
    'build',
    'checkLicenses',
    'javadoc'
  ]]

def expandedTaskList = []
gradle.startParameter.taskNames.each {
  expandedTaskList << (buildAliases[it] ? buildAliases[it] : it)
}
gradle.startParameter.taskNames = expandedTaskList.flatten()

// Gets a integer command argument, passed with -Pname=x, or the defaut if not provided.
def _intCmdArg(name, defaultValue) {
  return project.hasProperty(name) ? project.property(name) as int : defaultValue
}

def _intCmdArg(name) {
  return _intCmdArg(name, null)
}

def _strListCmdArg(name, defaultValue) {
  if (!project.hasProperty(name))
    return defaultValue

  return ((String)project.property(name)).tokenize(',')
}

def _strListCmdArg(name) {
  return _strListCmdArg(name, null)
}

def baseVersion = '0.8.0'
project.version = baseVersion + '-SNAPSHOT'

allprojects {
  apply plugin: 'java-library'
  apply plugin: 'io.spring.dependency-management'
  apply plugin: 'jacoco'
  apply plugin: 'net.ltgt.errorprone'
  apply plugin: 'com.jfrog.bintray'
  apply from: "${rootDir}/gradle/versions.gradle"
  apply from: "${rootDir}/gradle/check-licenses.gradle"

  version = rootProject.version

  jacoco { toolVersion = '0.8.2' }

  sourceCompatibility = '1.8'
  targetCompatibility = '1.8'

  repositories {
    jcenter()
    mavenCentral()
    maven { url  "https://consensys.bintray.com/pegasys-repo" }
  }

  dependencies {
    errorprone("com.google.errorprone:error_prone_core:$errorproneCore")
    if (JavaVersion.current().isJava8()) {
      errorproneJavac("com.google.errorprone:javac:$errorproneJavac")
    }
  }

  apply plugin: 'com.diffplug.gradle.spotless'
  spotless {
    java {
      // This path needs to be relative to each project
      target fileTree('.') {
        include '**/*.java'
        exclude '**/generalstate/GeneralStateReferenceTest*.java'
        exclude '**/generalstate/GeneralStateRegressionReferenceTest*.java'
        exclude '**/blockchain/BlockchainReferenceTest*.java'
        exclude '**/.gradle/**'
      }
      removeUnusedImports()
      googleJavaFormat()
      importOrder 'net.consensys', 'java', ''
      trimTrailingWhitespace()
      endWithNewline()
    }
    groovyGradle {
      target '*.gradle'
      greclipse().configFile(rootProject.file('gradle/formatter.properties'))
      endWithNewline()
    }
  }

  tasks.withType(JavaCompile) {
    options.compilerArgs += [
      '-Xlint:unchecked',
      '-Xlint:cast',
      '-Xlint:rawtypes',
      '-Xlint:overloads',
      '-Xlint:divzero',
      '-Xlint:finally',
      '-Xlint:static',
      '-Werror',
    ]

    options.errorprone {
      excludedPaths '.*/(generated|.*ReferenceTest_.*)'
      check('FutureReturnValueIgnored', CheckSeverity.OFF)
      check('InsecureCryptoUsage', CheckSeverity.WARN)
      check('FieldCanBeFinal', CheckSeverity.WARN)
      check('WildcardImport', CheckSeverity.WARN)
    }
  }

  /*
   * Pass some system properties provided on the gradle command line to test executions for
   * convenience.
   *
   * The properties passed are:
   * - 'test.ethereum.include': allows to run a single Ethereum reference tests. For instance,
   *   running a single general state test can be done with:
   *    ./gradlew :ethereum:net.consensys.pantheon.ethereum.vm:test -Dtest.single=GeneralStateTest -Dtest.ethereum.include=callcodecallcallcode_101-Frontier
   *   The meaning being that will be run only the tests for which the value passed as "include"
   *   (which can be a java pattern) matches parts of the test name. Knowing that tests names for
   *   reference tests are of the form:
   *     <name>(-<milestone>([<variant>])?)?
   *   where <name> is the test name as defined in the json file (usually the name of the json file
   *   as well), <milestone> is the Ethereum milestone tested (not all test use it) and <variant>
   *   is only use in some general state tests where for the same json file and same milestone,
   *   multiple variant of that test are run. The variant is a simple number.
   * - 'test.ethereum.state.eip': for general state tests, allows to only run tests for the
   *   milestone specified by this value. So for instance,
   *    ./gradlew :ethereum:net.consensys.pantheon.ethereum.vm:test -Dtest.single=GeneralStateTest -Dtest.ethereum.state.eip=Frontier
   *   only run general state tests for Frontier. Note that this behavior could be achieved as well
   *   with the 'include' option above since it is a pattern, but this is a slightly more convenient
   *   option.
   * - 'root.log.level' and 'evm.log.level': allow to control the log level used during the tests.
   */
  test {
    jvmArgs = [
      '-Xmx4g',
      '-XX:-UseGCOverheadLimit'
    ]
    Set toImport = [
      'test.ethereum.include',
      'test.ethereum.state.eip',
      'root.log.level',
      'evm.log.level'
    ]
    for (String name : toImport) {
      if (System.getProperty(name) != null) {
        systemProperty name, System.getProperty(name)
      }
    }
  }

  // Normalise Xdoclint behaviour across JDKs (OpenJDK 8 is more lenient than Oracle JDK by default).
  javadoc {
    options.addStringOption('Xdoclint:all', '-quiet')
    options.encoding = 'UTF-8'
  }

}

task deploy() {}





subprojects {

  tasks.withType(Test) {
    // If GRADLE_MAX_TEST_FORKS is not set, use half the available processors
    maxParallelForks = (System.getenv('GRADLE_MAX_TEST_FORKS') ?: (Runtime.runtime.availableProcessors().intdiv(2) ?: 1)).toInteger()
  }

  tasks.withType(JavaCompile) {
    options.fork = true
    options.incremental = true
  }
  apply plugin: 'maven-publish'

  sourceSets {
    // test-support can be consumed as a library by other projects in their tests
    testSupport {
      java {
        compileClasspath += main.output
        runtimeClasspath += main.output
        srcDir file('src/test-support/java')
      }
      resources.srcDir file('src/test-support/resources')
    }
    integrationTest {
      java {
        compileClasspath += main.output
        runtimeClasspath += main.output
        srcDir file('src/integration-test/java')
      }
      resources.srcDir file('src/integration-test/resources')
    }
  }

  configurations {
    testSupportImplementation.extendsFrom implementation
    integrationTestImplementation.extendsFrom implementation
    testSupportArtifacts
  }

  task testSupportJar (type: Jar) {
    baseName = "${project.name}-support-test"
    from sourceSets.testSupport.output
  }

  dependencies {
    testImplementation sourceSets.testSupport.output
    integrationTestImplementation sourceSets.testSupport.output
  }

  task integrationTest(type: Test, dependsOn:["compileTestJava"]){
    group = "verification"
    description = "Runs the Pantheon Integration Test"

    testClassesDirs = sourceSets.integrationTest.output.classesDirs
    classpath = sourceSets.integrationTest.runtimeClasspath
    outputs.upToDateWhen { false }
  }

  if (file('src/jmh').directory) {
    apply plugin: 'me.champeau.gradle.jmh'

    jmhCompileGeneratedClasses {
      options.compilerArgs += [
        '-XepDisableAllChecks'
      ]
    }

    jmh {
      // Allows to control JMH execution directly from the command line. I typical execution may look
      // like:
      //    gradle jmh -Pf=2 -Pwi=3 -Pi=5 -Pinclude=MyBench
      // which will run 2 forks with 3 warmup iterations and 5 normal ones for each, and will only
      // run the benchmark matching 'MyBench' (a regexp).
      warmupForks = _intCmdArg('wf')
      warmupIterations = _intCmdArg('wi')
      fork = _intCmdArg('f')
      iterations = _intCmdArg('i')
      benchmarkMode = _strListCmdArg('bm')
      include = _strListCmdArg('include', [''])
      humanOutputFile = project.file("${project.buildDir}/reports/jmh/results.txt")
      resultFormat = 'JSON'
    }

    dependencies { jmh 'org.apache.logging.log4j:log4j-api' }
  }

  afterEvaluate {
    if (project.jar.enabled) {
      publishing {
        publications {
          MavenDeployment(MavenPublication) {
            from components.java
            groupId 'net.consensys.pantheon'
            artifactId project.jar.baseName
            version project.version
          }
        }
      }

      bintray {
        user = System.getenv('BINTRAY_USER')
        key = System.getenv('BINTRAY_KEY')
        publications = ['MavenDeployment']
        pkg {
          repo = rootProject.name.toLowerCase()
          name = rootProject.name.capitalize()
          userOrg = 'consensys'
          licenses = ['Apache-2.0']
          version {
            name = project.version
            desc = rootProject.name.capitalize() + ' distribution'
            released  = new Date()
            vcsTag = project.version
          }
        }
      }

      deploy.dependsOn bintrayUpload
    }
  }
}

jar { enabled = false }

apply plugin: 'application'
mainClassName = "net.consensys.pantheon.Pantheon"
applicationDefaultJvmArgs = [
  "-Dvertx.disableFileCPResolving=true",
  "-Dpantheon.home=PANTHEON_HOME",
  // We shutdown log4j ourselves, as otherwise his shutdown hook runs before our own and whatever
  // happens during shutdown is not logged.
  "-Dlog4j.shutdownHookEnabled=false",
  "-Djava.security.egd=file:/dev/urandom"
]

run {
  args project.hasProperty("pantheon.run.args") ? project.property("pantheon.run.args").toString().split("\\s+") : []
  doFirst {
    applicationDefaultJvmArgs = applicationDefaultJvmArgs.collect{it.replace('PANTHEON_HOME', "$buildDir/pantheon")}
  }
}

startScripts {
  doLast {
    unixScript.text = unixScript.text.replace('PANTHEON_HOME', '\$APP_HOME')
    windowsScript.text = windowsScript.text.replace('PANTHEON_HOME', '%~dp0..')
  }
}

dependencies {
  compile project(':ethereum:evmtool')
  compile project(':pantheon')
  errorprone 'com.google.errorprone:error_prone_core:2.3.1'
}

task createEVMToolApp(type: CreateStartScripts) {
  outputDir = startScripts.outputDir
  mainClassName = 'net.consensys.pantheon.EVMTool'
  applicationName = 'evm'
  classpath = startScripts.classpath
}

applicationDistribution.into("bin") {
  duplicatesStrategy = DuplicatesStrategy.EXCLUDE
  from(createEVMToolApp)
  fileMode = 0755
}

applicationDistribution.into("") { from("LICENSE") }

distTar {
  doFirst {
    delete fileTree(dir: 'build/distributions', include: '*.tar.gz')
  }
  compression = Compression.GZIP
  extension = 'tar.gz'
}

distZip {
  doFirst {
    delete fileTree(dir: 'build/distributions', include: '*.zip')
  }
}

task jacocoRootReport(type: org.gradle.testing.jacoco.tasks.JacocoReport) {
  additionalSourceDirs = files(subprojects.sourceSets.main.allSource.srcDirs)
  sourceDirectories = files(subprojects.sourceSets.main.allSource.srcDirs)
  classDirectories = files(subprojects.sourceSets.main.output)
  executionData = files(subprojects.jacocoTestReport.executionData)  //how to exclude some package/classes com.test.**
  reports {
    xml.enabled true
    csv.enabled true
    html.destination file("build/reports/jacocoHtml")
  }
  onlyIf = { true }
  doFirst {
    executionData = files(executionData.findAll { it.exists() })
  }
}

configurations { annotationProcessor }

// Prevent errorprone-checks being dependent upon errorprone-checks!
// However, ensure all subprojects comply with the custom rules.
configure(subprojects.findAll {it.name != 'errorprone-checks'}) {
  dependencies { annotationProcessor project(":errorprone-checks") }

  tasks.withType(JavaCompile) {
    options.compilerArgs += [
      '-processorpath',
      configurations.annotationProcessor.asPath
    ]
  }
}


if (!file("ethereum/referencetests/src/test/resources/README.md").exists()) {
  throw new GradleException("ethereum/referencetests/src/test/resources/README.md missing: please clone submodules (git submodule update --init --recursive)")
}