package se.bilhalsning.service;

import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import se.bilhalsning.entity.Order;
import se.bilhalsning.entity.OrderStatus;
import se.bilhalsning.exception.OrderNotFoundException;
import se.bilhalsning.repository.OrderRepository;

import java.math.BigDecimal;
import java.util.List;
import java.util.UUID;

@Service
@RequiredArgsConstructor
public class OrderService {

    private final OrderRepository orderRepository;

    public Order createOrder(UUID userId, String plate, String letterText) {
        Order order = new Order();
        order.setUserId(userId);
        order.setPlate(plate.toUpperCase().trim());
        order.setLetterText(letterText);
        order.setStatus(OrderStatus.PENDING_PAYMENT);
        return orderRepository.save(order);
    }

    public List<Order> getOrdersByUserId(UUID userId) {
        return orderRepository.findByUserIdOrderByCreatedAtDesc(userId);
    }

    public Order getOrderById(UUID id) {
        return orderRepository.findById(id)
                .orElseThrow(() -> new OrderNotFoundException(id));
    }

    public List<Order> getAllOrders() {
        return orderRepository.findAllByOrderByCreatedAtDesc();
    }

    public Order updateOrderStatus(UUID orderId, String statusString) {
        Order order = orderRepository.findById(orderId)
                .orElseThrow(() -> new OrderNotFoundException(orderId));

        OrderStatus newStatus = OrderStatus.valueOf(statusString.toUpperCase());
        order.setStatus(newStatus);
        return orderRepository.save(order);
    }

    public Order updateTracking(UUID orderId, String trackingId) {
        Order order = orderRepository.findById(orderId)
                .orElseThrow(() -> new OrderNotFoundException(orderId));

        order.setTrackingId(trackingId);
        return orderRepository.save(order);
    }

    public Order markAsPaid(UUID orderId) {
        Order order = orderRepository.findById(orderId)
                .orElseThrow(() -> new OrderNotFoundException(orderId));

        order.setStatus(OrderStatus.PAID);
        order.setAmountPaid(new BigDecimal("49.00"));
        return orderRepository.save(order);
    }
}