amethyst/quartz/build.gradle.kts

import com.vanniktech.maven.publish.KotlinMultiplatform
import com.vanniktech.maven.publish.SourcesJar
import org.jetbrains.kotlin.gradle.dsl.JvmTarget
import org.jetbrains.kotlin.gradle.targets.native.tasks.KotlinNativeTest


plugins {
    alias(libs.plugins.kotlinMultiplatform)
    alias(libs.plugins.androidKotlinMultiplatformLibrary)
    alias(libs.plugins.serialization)
    alias(libs.plugins.vanniktech.mavenPublish)
}

kotlin {
    compilerOptions {
        freeCompilerArgs.add("-Xexpect-actual-classes")
    }
    jvm {
        compilerOptions {
            jvmTarget.set(JvmTarget.JVM_17)
        }
    }

    android {
        namespace = "com.vitorpamplona.quartz"
        compileSdk =
            libs.versions.android.compileSdk
                .get()
                .toInt()
        minSdk =
            libs.versions.android.minSdk
                .get()
                .toInt()

        compilerOptions {
            jvmTarget.set(JvmTarget.JVM_17)
        }

        optimization {
            consumerKeepRules.apply {
                publish = true
                file("consumer-rules.pro")
            }
        }

        withHostTest {}

        withDeviceTest {
            instrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
        }
    }

    // For iOS targets, this is also where you should
    // configure native binary output. For more information, see:
    // https://kotlinlang.org/docs/multiplatform-build-native-binaries.html#build-xcframeworks

    // A step-by-step guide on how to include this library in an XCode
    // project can be found here:
    // https://developer.android.com/kotlin/multiplatform/migrate
    val xcfName = "quartz-kmpKit"

    iosArm64 {
        binaries.framework {
            baseName = xcfName
            isStatic = true
            binaryOption("bundleId", "com.vitorpamplona.quartz")
        }
    }

    iosSimulatorArm64 {
        binaries.framework {
            baseName = xcfName
            isStatic = true
            binaryOption("bundleId", "com.vitorpamplona.quartz")
        }
    }

    linuxX64()

    macosArm64()

    // This makes sure that the resource file directory is visible for iOS tests.
    val rootDir = "${rootProject.rootDir.path}/quartz/src/commonTest/resources"

    tasks.withType<Test>().configureEach {
        maxHeapSize = "4g"
        environment("TEST_RESOURCES_ROOT", rootDir)
        // Opt-in gate for ProductionReceiverBenchmark (opens sockets to live
        // relays). `-PprodRelayBench=1` reaches the daemon even when an env
        // var would not survive daemon reuse.
        (project.findProperty("prodRelayBench") as? String)?.let {
            environment("PROD_RELAY_BENCH", it)
        }
        // Forward the negentropy-benchmark corpus size to the test JVM.
        System.getProperty("negBenchN")?.let { systemProperty("negBenchN", it) }
        System.getProperty("followBenchScale")?.let { systemProperty("followBenchScale", it) }
        System.getProperty("tagBenchScale")?.let { systemProperty("tagBenchScale", it) }
        System.getProperty("fsBenchScale")?.let { systemProperty("fsBenchScale", it) }
        // Opt-in JFR profiling of a benchmark run (-PnegProfile=/tmp/neg.jfr).
        (project.findProperty("negProfile") as? String)?.let {
            jvmArgs("-XX:+FlightRecorder", "-XX:StartFlightRecording=filename=$it,settings=profile,dumponexit=true")
        }
    }

    tasks.withType<KotlinNativeTest>().configureEach {
        environment("TEST_RESOURCES_ROOT", rootDir)
        // This is necessary to have the variable propagated on iOS
        environment("SIMCTL_CHILD_TEST_RESOURCES_ROOT", rootDir)
    }

    // Enable LLVM optimizations for native test binaries (benchmark accuracy).
    // Without opt, K/N test binaries compile in debug mode (~20× slower).
    // Use the binary-level API instead of -opt freeCompilerArg to avoid the
    // "Unsupported combination of flags: -opt and -g" conflict in Kotlin/Native 2.1+.
    targets.withType<org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget>().configureEach {
        binaries.withType<org.jetbrains.kotlin.gradle.plugin.mpp.TestExecutable>().configureEach {
            optimized = true
            debuggable = false
        }
    }

    // Source set declarations.
    // Declaring a target automatically creates a source set with the same name. By default, the
    // Kotlin Gradle Plugin creates additional source sets that depend on each other, since it is
    // common to share sources between related targets.
    // See: https://kotlinlang.org/docs/multiplatform-hierarchy.html
    sourceSets {
        commonMain {
            dependencies {
                implementation(libs.kotlin.stdlib)
                implementation(libs.kotlinx.coroutines.core)

                // For LruCache
                implementation(libs.androidx.collection)

                // @Immutable and @Stable
                implementation(libs.androidx.compose.runtime.annotation)

                // Bitcoin secp256k1 bindings
                api(libs.secp256k1.kmp.common)

                // Kotlin serialization for the times where we need the Json tree and performance is not that important.
                implementation(libs.kotlinx.serialization.json)

                // CBOR serialization for the NUT-00 v4 (cashuB) token wire format.
                implementation(libs.kotlinx.serialization.cbor)

                // immutable collections to avoid recomposition
                implementation(libs.kotlinx.collections.immutable)

                // SQLite KMP driver for event store
                api(libs.androidx.sqlite)
                implementation(libs.androidx.sqlite.bundled)

                // Negentropy set reconciliation (NIP-77)
                api(libs.negentropy.kmp)

                implementation("io.github.andreypfau:kotlinx-crypto-hmac:0.0.4")
                implementation("io.github.andreypfau:kotlinx-crypto-sha2:0.0.4")
            }
        }

        commonTest {
            dependencies {
                implementation(libs.kotlin.test)
                implementation(libs.kotlinx.coroutines.test)

                // SQLite bundled driver for tests
                api(libs.androidx.sqlite)
                implementation(libs.androidx.sqlite.bundled)
            }
        }

        // Must be defined before androidMain and jvmMain
        val jvmAndroid =
            create("jvmAndroid") {
                dependsOn(commonMain.get())

                dependencies {
                    // Performant Parser of JSONs into Events.
                    //
                    // jackson-databind, NOT jackson-module-kotlin: the module exists to bind
                    // Kotlin classes reflectively off their constructor parameter names, and
                    // nothing in the app does that any more — every wire format goes through a
                    // hand-written serializer or kotlinx. Dropping it takes kotlin-reflect with
                    // it, which is ~1,000 classes of DEX the app never called. `cli` still
                    // declares the module itself: it genuinely binds its config files
                    // reflectively, and is never minified.
                    api(libs.jackson.databind)

                    // Websockets API
                    implementation(libs.okhttp)
                    implementation(libs.okhttpCoroutines)

                    // Chess engine for move validation and legal move generation
                    // NOTE: 1.0.4+ uses Java 21's removeLast() which crashes on Android API < 34
                    // TODO: Test if 1.0.0 works, or fork library to fix
                    implementation(libs.kchesslib)
                }
            }

        // Must be defined before androidMain and jvmMain
        val jvmAndroidTest =
            create("jvmAndroidTest") {
                dependsOn(commonTest.get())
                dependencies {
                    implementation(libs.kotlin.test)
                    implementation(libs.kotlinx.coroutines.test)

                    // In-process Nostr relay (geode) so JVM/Android host
                    // tests don't need network access or a Rust toolchain.
                    // testFixtures (RelayClientTest base, fixtures,
                    // collectUntilEose) are wired below at the top-level
                    // `dependencies` block — the KMP source-set DSL
                    // doesn't expose the `testFixtures(...)` consumer.
                    implementation(project(":geode"))
                }
            }

        jvmMain {
            dependsOn(jvmAndroid)
            dependencies {
                // Bitcoin secp256k1 bindings
                implementation(libs.secp256k1.kmp.jni.jvm)
            }
        }

        jvmTest {
            dependsOn(jvmAndroidTest)
            dependencies {
                // Bitcoin secp256k1 bindings
                implementation(libs.secp256k1.kmp.jni.jvm)

                // Custom C secp256k1 (libschnorr256k1) for cross-validation + 3-way benchmark
                implementation(libs.schnorr256k1.kmp)

                // SQLite bundled driver for JVM tests
                implementation(libs.androidx.sqlite.bundled.jvm)
            }
        }

        androidMain {
            dependsOn(jvmAndroid)
            dependencies {
                implementation(libs.androidx.core.ktx)

                // Bitcoin secp256k1 bindings to Android
                api(libs.secp256k1.kmp.jni.android)
            }
        }

        getByName("androidHostTest") {
            dependencies {
                implementation(libs.kotlin.test)
                implementation(libs.kotlinx.coroutines.test)

                // Bitcoin secp256k1 bindings
                implementation(libs.secp256k1.kmp.jni.jvm)

                // SQLite bundled driver for Host tests
                implementation(libs.androidx.sqlite.bundled.jvm)
            }
        }

        getByName("androidDeviceTest") {
            dependencies {
                implementation(libs.androidx.runner)
                implementation(libs.androidx.core)
                implementation(libs.androidx.junit)
                implementation(libs.androidx.espresso.core)

                implementation(libs.kotlin.test)
                implementation(libs.kotlinx.coroutines.test)

                // Bitcoin secp256k1 bindings to Android
                api(libs.secp256k1.kmp.jni.android)

                // Custom C secp256k1 (libschnorr256k1) for cross-validation + 3-way benchmark
                implementation(libs.schnorr256k1.kmp)
            }
        }

        // Must be defined before appleMain, linuxMain, etc.
        val nativeMain =
            create("nativeMain") {
                dependsOn(commonMain.get())
            }

        val nativeTest =
            create("nativeTest") {
                dependsOn(commonTest.get())
            }

        // Must be defined before iosMain and macosMain
        val appleMain =
            create("appleMain") {
                dependsOn(nativeMain)
                dependencies {
                    implementation(libs.dev.whyoleg.cryptography.provider.apple.optimal)
                    implementation("io.github.andreypfau:kotlinx-crypto-hmac:0.0.4")
                    implementation("io.github.andreypfau:kotlinx-crypto-sha2:0.0.4")
                }
            }

        val appleTest =
            create("appleTest") {
                dependsOn(nativeTest)
            }

        iosMain {
            dependsOn(appleMain)
        }

        getByName("iosArm64Main") {
            dependsOn(iosMain.get())
        }

        getByName("iosSimulatorArm64Main") {
            dependsOn(iosMain.get())
        }

        iosTest {
            dependsOn(appleTest)
        }

        getByName("iosArm64Test") {
            dependsOn(iosTest.get())
        }

        getByName("iosSimulatorArm64Test") {
            dependsOn(iosTest.get())
        }

        val macosMain =
            create("macosMain") {
                dependsOn(appleMain)
            }

        val macosTest =
            create("macosTest") {
                dependsOn(appleTest)
            }

        getByName("macosArm64Main") {
            dependsOn(macosMain)
        }

        getByName("macosArm64Test") {
            dependsOn(macosTest)
        }

        val linuxMain =
            create("linuxMain") {
                dependsOn(nativeMain)
                dependencies {
                    implementation(libs.dev.whyoleg.cryptography.provider.apple.optimal)
                }
            }

        val linuxTest =
            create("linuxTest") {
                dependsOn(nativeTest)
            }

        getByName("linuxX64Main") {
            dependsOn(linuxMain)
        }

        getByName("linuxX64Test") {
            dependsOn(linuxTest)
        }
    }
}

// testFixtures(...) consumer lives outside the KMP source-set DSL —
// the KMP source-set `dependencies { }` block uses
// `KotlinDependencyHandler`, which does not expose the
// `testFixtures(...)` projection. The standard Gradle dependency
// configuration name (`jvmAndroidTestImplementation`) does work here.
dependencies {
    "jvmAndroidTestImplementation"(testFixtures(project(":geode")))
}

// iOS purity gate. Jackson and OkHttp are JVM-only and must never appear
// in source sets that compile for iOS / native / common targets. The KMP
// build would eventually fail with an "unresolved reference" if these
// leaked in, but that requires a macOS runner. This task is a fast Linux
// linter that fails with a clear message before iOS CI ever spins up.
//
// Scope: source sets whose code is compiled for at least one non-JVM
// target. Excludes jvmAndroid, jvmMain, androidMain (and their tests),
// where Jackson and OkHttp are legitimately used.
//
// The task itself is shared with :commons and :commonsUI — see
// gradle/kmp-purity.gradle.kts for the pattern table and checked dirs.
apply(from = rootProject.file("gradle/kmp-purity.gradle.kts"))

mavenPublishing {
    // sources publishing is always enabled by the Kotlin Multiplatform plugin
    configure(
        KotlinMultiplatform(
            // whether to publish a sources jar
            sourcesJar = SourcesJar.Sources(),
        ),
    )

    coordinates(
        groupId = "com.vitorpamplona.quartz",
        artifactId = "quartz",
        // Library version tracks the app version in gradle/libs.versions.toml,
        // bumped in lockstep with each release.
        version = libs.versions.app.get(),
    )

    // Configure publishing to Maven Central
    publishToMavenCentral(automaticRelease = true)

    // Enable GPG signing for all publications
    signAllPublications()

    pom {
        name = "Quartz: Nostr Library for Kotlin Multiplatform"
        description = "Nostr library ported to Kotlin/Multiplatform for JVM, Android, iOS & Linux"
        inceptionYear = "2025"
        url = "https://github.com/vitorpamplona/amethyst/"
        licenses {
            license {
                name = "MIT License"
                url = "https://github.com/vitorpamplona/amethyst/blob/main/LICENSE"
            }
        }
        developers {
            developer {
                id = "vitorpamplona"
                name = "Vitor Pamplona"
                url = "http://vitorpamplona.com"
                email = "vitor@vitorpamplona.com"
            }
        }
        scm {
            url = "https://github.com/vitorpamplona/amethyst/"
            connection = "https://github.com/vitorpamplona/amethyst/.git"
        }
    }
}