#include "decorator_nodes.h"
#include "behaviour_nodes/behaviour_node.h"
#include "core/variant/variant.h"

PackedStringArray BehaviourAlwaysSuccess::get_configuration_warnings() const {
	PackedStringArray warnings{ super_type::get_configuration_warnings() };
	if (get_child_behaviours().size() != 1) {
		warnings.push_back("BehaviourAlwaysSuccess should have exactly one child");
	}
	return warnings;
}

void BehaviourAlwaysSuccess::execute() {
	if (get_child_behaviours().is_empty()) {
		set_status(Fail);
		ERR_FAIL_EDMSG("BehaviourSequence executed with no children.");
	} else if (get_status() == Running) {
		set_status(get_child_behaviours().get(0)->get_status() == Running ? Running : Success);
	} else {
		set_status(Running);
	}
}

BehaviourNode *BehaviourAlwaysSuccess::get_next() {
	return get_status() == Running
			? get_child_behaviours().get(0)
			: cast_to<BehaviourNode>(get_parent());
}

PackedStringArray BehaviourInvertResult::get_configuration_warnings() const {
	PackedStringArray warnings{ super_type::get_configuration_warnings() };
	if (get_child_behaviours().size() != 1) {
		warnings.push_back("BehaviourInvertResult should have exactly one child behaviour");
	}
	return warnings;
}

void BehaviourInvertResult::enter() {
	set_status(Running);
}

void BehaviourInvertResult::execute() {
	if (get_child_behaviours().is_empty()) {
		set_status(Fail);
		ERR_FAIL_EDMSG("BehaviourInvertResult executed with no children");
	} else {
		Status child_status{ get_child_behaviours().get(0)->get_status() };
		switch (child_status) {
			case Fail:
				set_status(Success);
				return;
			case Success:
				set_status(Fail);
				return;
			case Running:
				set_status(Running);
				return;
		}
	}
}

BehaviourNode *BehaviourInvertResult::get_next() {
	return get_status() == Running
			? get_child_behaviours().get(0)
			: cast_to<BehaviourNode>(get_parent());
}