#include "terrain_mesh_editor.h"
#include "scene/3d/node_3d.h"
#include "scene/resources/packed_scene.h"
#include "terrain_editor/macros.h"
#include "terrain_editor/point_primitive_node.h"
#include "terrain_editor/terrain_primitive.h"

void TerrainMeshEditor::_bind_methods() {
	BIND_HPROPERTY(Variant::OBJECT, point_primitive_object, PROPERTY_HINT_RESOURCE_TYPE, "PackedScene");
}

void TerrainMeshEditor::ready() {
	connect(sig_primitive_list_changed, callable_mp(this, &self_type::on_primitive_list_changed));
	on_primitive_list_changed(get_primitives());
}

void TerrainMeshEditor::on_primitive_list_changed(Array primitives) {
	for (Node3D *existing : this->primitive_nodes) {
		existing->queue_free();
	}
	this->primitive_nodes.clear();
	for (Variant var : primitives) {
		if (this->point_primitive_object.is_valid() && this->point_primitive_object->get_state()->get_node_type(0) == PointPrimitiveNode::get_class_static()) {
			Ref<PointPrimitive> point{ var };
			if (point.is_valid()) {
				PointPrimitiveNode *primitive_node{ cast_to<PointPrimitiveNode>(this->point_primitive_object->instantiate()) };
				primitive_node->set_primitive(point);
				this->add_child(primitive_node);
			}
		}
	}
}

void TerrainMeshEditor::_notification(int what) {
	if (Engine::get_singleton()->is_editor_hint()) {
		return;
	}
	switch (what) {
		default:
			return;
		case NOTIFICATION_READY:
			ready();
			return;
	}
}

void TerrainMeshEditor::set_point_primitive_object(Ref<PackedScene> scene) {
	this->point_primitive_object = scene;
}

Ref<PackedScene> TerrainMeshEditor::get_point_primitive_object() const {
	return this->point_primitive_object;
}