#ajni

#Install

moon add Nanaloveyuki/ajni

import {
  "Nanaloveyuki/ajni/webview",
}

#Generic JNI Declarations

let string = try! @ajni.JniClass::parse("java/lang/String")
let signature = try! @ajni.JniMethod::new(
  [@ajni.JniType::object(string)],
  return_type=@ajni.JniType::boolean(),
)
let registration = try! @ajni.NativeMethod::new("nativeAcceptsString", signature)
println(registration.descriptor()) // (Ljava/lang/String;)Z

#Bidirectional Runtime

let session = @runtime.Session::current()
let builder = session.find_class(@ajni.JniClass::parse("java/lang/StringBuilder"))
let instance = builder.lookup_constructor([]).new([])
let append = builder.instance_method("append", @ajni.JniMethod::new(
  [@ajni.JniType::object(@ajni.JniClass::parse("java/lang/String"))],
  return_type=@ajni.JniType::object(@ajni.JniClass::parse("java/lang/StringBuilder")),
))
ignore(append.call([@runtime.Object(Some(session.new_string("MoonBit")))], receiver=instance))
let callback = session.callback(
  @ajni.JniMethod::new([@ajni.JniType::int()], return_type=@ajni.JniType::int()),
  (args) => match args[0] {
    Int(value) => @runtime.Int(value + 1)
    _ => raise @runtime.InvalidArgument("Expected int")
  },
)
// Pass callback.object() to Java; AjniCallback.invoke(41) returns Integer(42).

#Android Runtime

import {
  "Nanaloveyuki/ajni/android",
}

let subscription = @android.install_event_handler(event => match event {
  @android.AndroidEvent::Lifecycle(@android.Lifecycle::Resumed) => println("resumed")
  @android.AndroidEvent::UiTask => println("Android main Looper callback")
  _ => ()
})

// Remove the observer before application shutdown.
@android.remove_event_handler(subscription)

#Android Host

import dev.nanaloveyuki.ajni.host.NativeBridge

NativeBridge.initialize(applicationContext)
NativeBridge.attachWebViewContainer(container)

// Forward every Activity lifecycle state on the main thread.
NativeBridge.lifecycle(state)

// During Activity teardown:
NativeBridge.detachWebViewContainer(container)
NativeBridge.shutdown()

#WebView Feature

import {
  "Nanaloveyuki/ajni/webview",
}

let subscription = @webview.install_event_handler(event => match event.kind {
  @webview.EventKind::Created(_) => println("ready")
  @webview.EventKind::ScriptResult(request_id, json) =>
    println("\{request_id}: \{json}")
  @webview.EventKind::PageMessage(body, origin, _is_main_frame) =>
    println("\{origin}: \{body}")
  @webview.EventKind::AssetRequest(request) => println(request.path)
  @webview.EventKind::OperationFailed(operation_id, message) =>
    println("\{operation_id}: \{message}")
  _ => ()
})

try! @webview.create(
  1L,
  "https://app.example.test",
  @webview.InitialContent::Url("https://app.example.test/assets/index.html"),
  document_start_scripts=["globalThis.appReady = true"],
  operation_id="create-browser",
)
try! @webview.eval(1L, "document.title", "title-request")
try! @webview.destroy(1L, operation_id="destroy-browser")
@webview.remove_event_handler(subscription)

#Maintenance Scope

#Build And Verify

moon fmt --check
moon check --target native
moon test --target native --build-only
moon info --target native
python3 scripts/check-package-files.py

moon update
python3 scripts/run-jvm-smoke.py

python3 scripts/check-jni-contract.py --class-dir android/host/build/tmp/kotlin-classes/debug \
  --ndk "$ANDROID_NDK_HOME" --moon-home "$MOON_HOME"

$env:ANDROID_SDK_ROOT = "C:\path\to\Android\Sdk"
$env:ANDROID_NDK_HOME = "C:\path\to\android-ndk-r29"
$env:ANDROID_SERIAL = "emulator-5554"
.\android\gradlew.bat -p android :app:connectedDebugAndroidTest

#CI And Releases

#Contributing

#ajni JNI

#JNI Descriptors

///|
test {
  let string = try! @ajni.JniClass::parse("java/lang/String")
  let signature = try! @ajni.JniMethod::new(
    [@ajni.JniType::object(string)],
    return_type=@ajni.JniType::boolean(),
  )
  let registration = try! @ajni.NativeMethod::new(
    "nativeAcceptsString", signature,
  )
  assert_eq(registration.descriptor(), "(Ljava/lang/String;)Z")
}