implement studio transition

build.gradle.kts

@@ -6,8 +6,12 @@ plugins {
 dependencies {
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit5")
     testImplementation("org.junit.jupiter:junit-jupiter-engine:5.9.3")
+
     implementation("com.github.hypfvieh:dbus-java-core:4.3.1")
     runtimeOnly("com.github.hypfvieh:dbus-java-transport-native-unixsocket:4.3.1")
+
+    implementation("io.obs-websocket.community:client:2.0.0")
+
     implementation("org.slf4j:slf4j-api:2.0.9")
     runtimeOnly("org.slf4j:slf4j-simple:2.0.9")
 }

src/main/kotlin/net/eksb/obsdc/DBus.kt

@@ -0,0 +1,79 @@
+package net.eksb.obsdc
+
+import org.freedesktop.dbus.annotations.DBusInterfaceName
+import org.freedesktop.dbus.connections.impl.DBusConnection
+import org.freedesktop.dbus.connections.impl.DBusConnectionBuilder
+import org.freedesktop.dbus.interfaces.DBusInterface
+import org.freedesktop.dbus.interfaces.DBusSigHandler
+import org.freedesktop.dbus.messages.DBusSignal
+import org.slf4j.LoggerFactory
+import kotlin.concurrent.thread
+
+class DBus(handler: Handler) {
+
+	private val thread = thread(
+		start = true,
+		isDaemon = false,
+		name = "dbus",
+	) {
+		DBusConnectionBuilder.forSessionBus().build().use { dbus ->
+
+			// These lines are not necessary to handle signals, but are necessary to register methods.
+			dbus.requestBusName("net.eksb.obsdc")
+			dbus.exportObject("/", ObsdcDBusInterfaceImpl())
+
+			dbus.addSigHandler<ObsdcDBusInterface.Signal> { signal ->
+				log.info("signal: ${signal.op}")
+				val op = Op.valueOf(signal.op)
+				log.info("op: ${op}")
+				handler.handle(op)
+			}
+			while (true) {
+				try {
+					Thread.sleep(60_000)
+				} catch (e:InterruptedException) {
+					log.info("interrupted")
+					break
+				}
+			}
+		}
+		log.info("done")
+	}
+
+	fun stop() {
+		thread.interrupt()
+	}
+
+	private val log = LoggerFactory.getLogger(DBus::class.java)
+}
+
+inline fun <reified T: DBusSignal> DBusConnection.addSigHandler(handler: DBusSigHandler<T>) {
+	addSigHandler(T::class.java, handler)
+}
+
+@DBusInterfaceName("net.eksb.Obsdc")
+interface ObsdcDBusInterface: DBusInterface {
+	fun echo(message:String): String
+	class Signal(path:String, val op:String): DBusSignal(path, op)
+}
+class ObsdcDBusInterfaceImpl: ObsdcDBusInterface {
+	override fun echo(message: String):String {
+		return message
+	}
+	override fun getObjectPath(): String = "/"
+}
+
+/*
+Monitor:
+`dbus-monitor`
+
+See what is registered:
+`qdbus net.eksb.obsdc /`
+
+Send signal:
+`dbus-send --session --type=signal --dest=net.eksb.obsdc / net.eksb.Obsdc.Signal string:a`
+
+Call method:
+`dbus-send --session --type=method_call --print-reply --dest=net.eksb.obsdc / net.eksb.Obsdc.echo string:b`
+`qdbus net.eksb.obsdc / net.eksb.Obsdc.echo hello`
+ */

src/main/kotlin/net/eksb/obsdc/Handler.kt

@@ -0,0 +1,5 @@
+package net.eksb.obsdc
+
+fun interface Handler {
+	fun handle(op:Op)
+}

src/main/kotlin/net/eksb/obsdc/Main.kt

@@ -1,68 +1,9 @@
 package net.eksb.obsdc
 
-import org.freedesktop.dbus.annotations.DBusInterfaceName
-import org.freedesktop.dbus.connections.impl.DBusConnection
-import org.freedesktop.dbus.connections.impl.DBusConnectionBuilder
-import org.freedesktop.dbus.interfaces.DBusInterface
-import org.freedesktop.dbus.interfaces.DBusSigHandler
-import org.freedesktop.dbus.messages.DBusSignal
-import org.slf4j.LoggerFactory
-
 object Main {
     @JvmStatic
     fun main(args: Array<String>) {
-
-        DBusConnectionBuilder.forSessionBus().build().use { dbus ->
-
-            // These lines are not necessary to handle signals, but are necessary to register methods.
-            dbus.requestBusName("net.eksb.obsdc")
-            dbus.exportObject("/", ObsdcDBusInterfaceImpl())
-
-            dbus.addSigHandler<ObsdcDBusInterface.Signal> { signal -> log.info("signal: ${signal.message}") }
-            while (true) {
-                try {
-                    Thread.sleep(60_000)
-                } catch (e:InterruptedException) {
-                    log.info("interrupted")
-                    break
+        val obs = ObsCommunity()
+        DBus(obs.handler) // forks non-daemon thread
     }
 }
-        }
-        log.info("done")
-    }
-
-}
-
-inline fun <reified T:DBusSignal> DBusConnection.addSigHandler(handler:DBusSigHandler<T>) {
-    addSigHandler(T::class.java, handler)
-}
-
-private val log = LoggerFactory.getLogger(Main::class.java)
-
-@DBusInterfaceName("net.eksb.Obsdc")
-interface ObsdcDBusInterface: DBusInterface {
-    fun echo(message:String): String
-    class Signal(path:String, val message:String): DBusSignal(path, message)
-}
-class ObsdcDBusInterfaceImpl: ObsdcDBusInterface {
-    override fun echo(message: String):String {
-        log.info("echo: ${message}")
-        return message
-    }
-    override fun getObjectPath(): String = "/"
-}
-
-/*
-Monitor:
-`dbus-monitor`
-
-See what is registered:
-`qdbus net.eksb.obsdc /`
-
-Send signal:
-`dbus-send --session --type=signal --dest=net.eksb.obsdc / net.eksb.Obsdc.Signal string:a`
-
-Call method:
-`dbus-send --session --type=method_call --print-reply --dest=net.eksb.obsdc / net.eksb.Obsdc.echo string:b`
-`qdbus net.eksb.obsdc / net.eksb.Obsdc.echo hello`
- */

src/main/kotlin/net/eksb/obsdc/Obs.kt

@@ -0,0 +1,5 @@
+package net.eksb.obsdc
+
+interface Obs {
+	val handler:Handler
+}

src/main/kotlin/net/eksb/obsdc/ObsCommunity.kt

@@ -0,0 +1,46 @@
+package net.eksb.obsdc
+
+import io.obswebsocket.community.client.OBSRemoteController
+import org.slf4j.LoggerFactory
+
+class ObsCommunity: Obs, AutoCloseable {
+
+	// TODO: make a single controller, and read ops from a queue.
+
+	override fun close() {}
+
+	override val handler: Handler = Handler { op ->
+		var controller:OBSRemoteController? = null
+
+		fun ready() {
+			controller?.let { controller ->
+				log.info("ready to send ${op}")
+
+				when(op) {
+					Op.STUDIO_TRANSITION -> {
+						controller.triggerStudioModeTransition { response ->
+							log.info("Response successful: ${response.isSuccessful}")
+							controller.disconnect()
+						}
+					}
+				}
+			}
+		}
+
+		controller = OBSRemoteController.builder()
+			.host("localhost")
+			.port(4455)
+			.password("R3tRkVXhFofJ2wRF") // TODO put this in a file
+			.autoConnect(true)
+			.lifecycle()
+			.onReady {
+				ready()
+			}
+			.and()
+			.build()
+	}
+
+	companion object {
+		private val log = LoggerFactory.getLogger(ObsCommunity::class.java)
+	}
+}

src/main/kotlin/net/eksb/obsdc/Op.kt

@@ -0,0 +1,6 @@
+package net.eksb.obsdc
+
+enum class Op {
+	STUDIO_TRANSITION,
+	;
+}