import net.corda.gradle.jarfilter.JarFilterTask
import net.corda.gradle.jarfilter.MetaFixerTask
import proguard.gradle.ProGuardTask
import static org.gradle.api.JavaVersion.VERSION_1_8

plugins {
    id 'org.jetbrains.kotlin.jvm'
    id 'net.corda.plugins.publish-utils'
    id 'com.jfrog.artifactory'
    id 'java-library'
    id 'idea'
}
apply from: "${rootProject.projectDir}/deterministic.gradle"

description 'Corda core (deterministic)'

evaluationDependsOn(":core")

// required by DJVM and Avian JVM (for running inside the SGX enclave) which only supports Java 8.
targetCompatibility = VERSION_1_8

def javaHome = System.getProperty('java.home')
def jarBaseName = "corda-${project.name}".toString()

configurations {
    deterministicLibraries {
        canBeConsumed = false
        extendsFrom api
    }
    deterministicArtifacts.extendsFrom deterministicLibraries
}

dependencies {
    compileOnly project(':core')

    // Configure these by hand. It should be a minimal subset of core's dependencies,
    // and without any obviously non-deterministic ones such as Hibernate.

    // These "api" dependencies will become "compile" scoped in our published POM.
    api "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
    api "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    api "javax.persistence:javax.persistence-api:2.2"
    api "com.google.code.findbugs:jsr305:$jsr305_version"
    api "org.slf4j:slf4j-api:$slf4j_version"

    // These dependencies will become "runtime" scoped in our published POM.
    // See publish.dependenciesFrom.defaultScope.
    deterministicLibraries "org.bouncycastle:bcprov-jdk18on:$bouncycastle_version"
    deterministicLibraries "org.bouncycastle:bcpkix-jdk18on:$bouncycastle_version"
    deterministicLibraries "net.i2p.crypto:eddsa:$eddsa_version"
}

tasks.named('jar', Jar) {
    archiveBaseName = 'DOES-NOT-EXIST'
    // Don't build a jar here because it would be the wrong one.
    // The jar we really want will be built by the metafix task.
    enabled = false
}

def coreJarTask = project(':core').tasks.named('jar', Jar)
def originalJar = coreJarTask.map { it.outputs.files.singleFile }

def patchCore = tasks.register('patchCore', Zip) {
    dependsOn coreJarTask
    destinationDirectory = layout.buildDirectory.dir('source-libs')
    metadataCharset 'UTF-8'
    archiveClassifier = 'transient'
    archiveExtension = 'jar'

    from(compileKotlin)
    from(processResources)
    from(zipTree(originalJar)) {
        exclude 'net/corda/core/crypto/DelegatingSecureRandomService*.class'
        exclude 'net/corda/core/crypto/DigestSupplier.class'
        exclude 'net/corda/core/internal/*ToggleField*.class'
        exclude 'net/corda/core/serialization/*SerializationFactory*.class'
        exclude 'net/corda/core/serialization/internal/AttachmentsHolderImpl.class'
        exclude 'net/corda/core/serialization/internal/CheckpointSerializationFactory*.class'
        exclude 'net/corda/core/internal/rules/*.class'
    }

    reproducibleFileOrder = true
    includeEmptyDirs = false
}

def predeterminise = tasks.register('predeterminise', ProGuardTask) {
    injars patchCore
    outjars file("$buildDir/proguard/pre-deterministic-${project.version}.jar")

    if (JavaVersion.current().isJava9Compatible()) {
        libraryjars "$javaHome/jmods"
    } else {
        libraryjars "$javaHome/lib/rt.jar"
        libraryjars "$javaHome/lib/jce.jar"
    }
    configurations.compileClasspath.forEach {
        if (originalJar != it) {
            libraryjars it, filter: '!META-INF/versions/**'
        }
    }

    keepattributes '*'
    keepdirectories
    dontwarn '**$1$1,org.hibernate.annotations.*'
    dontpreverify
    dontobfuscate
    dontoptimize
    dontnote
    printseeds
    verbose

    keep '@interface net.corda.core.* { *; }'
    keep '@interface net.corda.core.contracts.** { *; }'
    keep '@interface net.corda.core.serialization.** { *; }'
    keep '@net.corda.core.KeepForDJVM class * { *; }', includedescriptorclasses:true
    keepclassmembers 'class net.corda.core.** { public synthetic <methods>; }'
}

def jarFilter = tasks.register('jarFilter', JarFilterTask) {
    jars predeterminise
    annotations {
        forDelete = [
            "net.corda.core.DeleteForDJVM"
        ]
        forStub = [
            "net.corda.core.StubOutForDJVM"
        ]
        forRemove = [
            "co.paralleluniverse.fibers.Suspendable",
            "org.hibernate.annotations.Immutable"
        ]
        forSanitise = [
            "net.corda.core.DeleteForDJVM"
        ]
    }
}

def determinise = tasks.register('determinise', ProGuardTask) {
    injars jarFilter
    outjars file("$buildDir/proguard/$jarBaseName-${project.version}.jar")

    if (JavaVersion.current().isJava9Compatible()) {
        libraryjars "$javaHome/jmods"
    } else {
        libraryjars "$javaHome/lib/rt.jar"
        libraryjars "$javaHome/lib/jce.jar"
    }
    configurations.deterministicLibraries.forEach {
        libraryjars it, filter: '!META-INF/versions/**'
    }

    // Analyse the JAR for dead code, and remove (some of) it.
    optimizations 'code/removal/simple,code/removal/advanced'
    printconfiguration

    keepattributes '*'
    keepdirectories
    dontobfuscate
    dontnote
    printseeds
    verbose

    keep '@interface net.corda.core.CordaInternal { *; }'
    keep '@interface net.corda.core.DoNotImplement { *; }'
    keep '@interface net.corda.core.KeepForDJVM { *; }'
    keep '@interface net.corda.core.contracts.** { *; }'
    keep '@interface net.corda.core.serialization.** { *; }'
    keep '@net.corda.core.KeepForDJVM class * { *; }', includedescriptorclasses:true
    keepclassmembers 'class net.corda.core.** { public synthetic <methods>; }'
}

def checkDeterminism = tasks.register('checkDeterminism', ProGuardTask)

def metafix = tasks.register('metafix', MetaFixerTask) {
    outputDir = layout.buildDirectory.dir('libs')
    jars determinise
    suffix ""

    // Strip timestamps from the JAR to make it reproducible.
    preserveTimestamps = false
    finalizedBy checkDeterminism
}

// DOCSTART 01
checkDeterminism.configure {
    dependsOn jdkTask
    injars metafix

    libraryjars deterministic_rt_jar

    configurations.deterministicLibraries.forEach {
        libraryjars it, filter: '!META-INF/versions/**'
    }

    keepattributes '*'
    dontpreverify
    dontobfuscate
    dontoptimize
    verbose

    keep 'class *'
}
// DOCEND 01

defaultTasks "determinise"
determinise.configure {
    finalizedBy metafix
}
tasks.named('assemble') {
    dependsOn checkDeterminism
}

def deterministicJar = metafix.map { it.outputs.files.singleFile }
artifacts {
    deterministicArtifacts deterministicJar
    publish deterministicJar
}

tasks.named('sourceJar', Jar) {
    from 'README.md'
    include 'README.md'
}

tasks.named('javadocJar', Jar) {
    from 'README.md'
    include 'README.md'
}

publish {
    dependenciesFrom configurations.deterministicArtifacts
    name jarBaseName
}

idea {
    module {
        if (project.hasProperty("deterministic_idea_sdk")) {
            jdkName project.property("deterministic_idea_sdk") as String
        }
    }
}