#include "point_primitive_node.h"
#include "scene/3d/node_3d.h"
#include "terrain_editor/edit_history.h"
#include "terrain_editor/macros.h"
#include "terrain_editor/terrain_primitive.h"

void PointPrimitiveNode::_bind_methods() {
	BIND_GET_SET(primitive);
	ClassDB::bind_method(D_METHOD("push_transform_changes"), &self_type::push_transform_changes);
	ClassDB::bind_method(D_METHOD("preview_transform_changes"), &self_type::preview_transform_changes);
}

void PointPrimitiveNode::on_underlying_changed() {
	if (!this->pushing_change && this->is_inside_tree()) {
		this->pushing_change = true;
		Vector2 const center{ this->primitive->get_center() };
		set_global_position({ center.x, this->primitive->get_height(), center.y });
		this->pushing_change = false;
	}
}

void PointPrimitiveNode::_notification(int what) {
	switch (what) {
		default:
			return;
		case NOTIFICATION_ENTER_TREE:
			if (this->primitive.is_valid()) {
				on_underlying_changed();
			}
			return;
	}
}

void PointPrimitiveNode::preview_transform_changes() {
	if (this->primitive.is_valid()) {
		this->pushing_change = true;
		Vector3 const position{ get_global_position() };
		Vector2 const center{ position.x, position.z };
		if (center != this->primitive->get_center()) {
			this->primitive->set_center(center);
		}
		if (position.y != this->primitive->get_height()) {
			this->primitive->set_height(position.y);
		}

		this->pushing_change = false;
	}
}

void PointPrimitiveNode::push_transform_changes() {
	if (this->primitive.is_valid()) {
		this->pushing_change = true;
		Vector3 const position{ get_global_position() };
		Vector2 const center{ position.x, position.z };
		if (center != this->primitive->get_center()) {
			EditHistory::get_singleton()->push_action(
					callable_mp(*this->primitive, &PointPrimitive::set_center).bind(center),
					callable_mp(*this->primitive, &PointPrimitive::set_center).bind(this->primitive->get_center()));
		}
		if (position.y != this->primitive->get_height()) {
			EditHistory::get_singleton()->push_action(
					callable_mp(*this->primitive, &PointPrimitive::set_height).bind(position.y),
					callable_mp(*this->primitive, &PointPrimitive::set_height).bind(this->primitive->get_height()));
		}
		this->pushing_change = false;
	}
}

void PointPrimitiveNode::set_primitive(Ref<PointPrimitive> primitive) {
	if (this->primitive.is_valid()) {
		this->primitive->disconnect_changed(underlying_changed_callable);
	}
	this->primitive = primitive;
	if (this->primitive.is_valid()) {
		primitive->connect_changed(underlying_changed_callable);
		on_underlying_changed();
	}
}

Ref<PointPrimitive> PointPrimitiveNode::get_primitive() const {
	return this->primitive;
}