import org.gradle.internal.serialize.graph.ReadContext
import org.gradle.internal.serialize.graph.getSingletonProperty


typealias ProjectProvider = (String) -> ProjectInternal


fun ReadContext.getProject(path: String): ProjectInternal =

    /**
     * Defers the given [action] until all objects have been read.
     */
    fun onFinish(action: () -> Unit)

    fun <T : Any> getSingletonProperty(propertyType: Class<T>): T
}


inline
fun <reified T : Any> ReadContext.getSingletonProperty(): T =
    getSingletonProperty(T::class.java)


suspend fun <T : Any> ReadContext.readNonNull() = read()!!.uncheckedCast<T>()


interface IsolateContext {

    /**
     * Sets a client specific property value that can be queried via [getSingletonProperty].
     */
    fun <T : Any> setSingletonProperty(singletonProperty: T) {
        this.singletonProperty = singletonProperty
    }

    override fun <T : Any> getSingletonProperty(propertyType: Class<T>): T {
        val propertyValue = singletonProperty

        override val classLoader: ClassLoader
            get() = undefined()

        override fun onFinish(action: () -> Unit) =
            undefined()

        override fun <T : Any> getSingletonProperty(propertyType: Class<T>): T =
            undefined()

        override fun beanStateReaderFor(beanType: Class<*>): BeanStateReader =
            undefined()

        override var immediateMode: Boolean