Refactor source layout

Introduce compat source sets and move all kotlin sources to the main directory

[no changelog]

src/main/kotlin/gui/config/ManagedOption.kt

@@ -0,0 +1,62 @@
+
+
+package moe.nea.firmament.gui.config
+
+import io.github.notenoughupdates.moulconfig.observer.GetSetter
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.JsonObject
+import kotlin.properties.ReadWriteProperty
+import kotlin.reflect.KProperty
+import net.minecraft.text.Text
+import moe.nea.firmament.Firmament
+
+class ManagedOption<T : Any>(
+    val element: ManagedConfigElement,
+    val propertyName: String,
+    val default: () -> T,
+    val handler: ManagedConfig.OptionHandler<T>
+) : ReadWriteProperty<Any?, T>, GetSetter<T> {
+    override fun set(newValue: T) {
+        this.value = newValue
+    }
+
+    override fun get(): T {
+        return this.value
+    }
+
+    val rawLabelText = "firmament.config.${element.name}.${propertyName}"
+    val labelText = Text.translatable(rawLabelText)
+
+    lateinit var value: T
+
+    override fun setValue(thisRef: Any?, property: KProperty<*>, value: T) {
+        this.value = value
+    }
+
+    override fun getValue(thisRef: Any?, property: KProperty<*>): T {
+        return value
+    }
+
+    fun load(root: JsonElement) {
+        if (root is JsonObject && root.containsKey(propertyName)) {
+            try {
+                value = handler.fromJson(root[propertyName]!!)
+                return
+            } catch (e: Exception) {
+                Firmament.logger.error(
+                    "Exception during loading of config file ${element.name}. This will reset this config.",
+                    e
+                )
+            }
+        }
+        value = default()
+    }
+
+    fun toJson(): JsonElement? {
+        return handler.toJson(value)
+    }
+
+    fun appendToGui(guiapp: GuiAppender) {
+        handler.emitGuiElements(this, guiapp)
+    }
+}