var express = require("express");
var router = express.Router();

/**
 * @swagger
 * /api/v1/order:
 *   get:
 *     summary: Get all orders
 *     tags: [Order]
 *     responses:
 *       200:
 *         description: List of all orders
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 success:
 *                   type: boolean
 *                 data:
 *                   type: array
 *                   items:
 *                     $ref: '#/components/schemas/Order'
 */
// GET all orders
router.get("/", async function (req, res, next) {
    try {
        const db = req.app.get("db");
        const orders = await db.order.findAll();
        res.json({ success: true, data: orders });
    } catch (error) {
        console.error(error);
        res.status(500).json({
            success: false,
            message: "Error fetching orders",
            error: error.message,
        });
    }
});

/**
 * @swagger
 * /api/v1/order/{id}:
 *   get:
 *     summary: Get one order by ID
 *     tags: [Order]
 *     parameters:
 *       - in: path
 *         name: id
 *         required: true
 *         schema:
 *           type: integer
 *     responses:
 *       200:
 *         description: Order details
 *       404:
 *         description: Order not found
 */
// GET one order by id
router.get("/:id", async function (req, res, next) {
    try {
        const db = req.app.get("db");
        const order = await db.order.findByPk(req.params.id);

        if (!order) {
            return res
                .status(404)
                .json({ success: false, message: "Order not found" });
        }

        res.json({ success: true, data: order });
    } catch (error) {
        console.error(error);
        res.status(500).json({
            success: false,
            message: "Error fetching order",
            error: error.message,
        });
    }
});

/**
 * @swagger
 * /api/v1/order:
 *   post:
 *     summary: Create a new order
 *     tags: [Order]
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             required:
 *               - user_id
 *               - amount
 *               - tax
 *             properties:
 *               user_id:
 *                 type: integer
 *               amount:
 *                 type: number
 *                 format: decimal
 *               tax:
 *                 type: number
 *                 format: decimal
 *               notes:
 *                 type: string
 *               status:
 *                 type: integer
 *                 enum: [0, 1]
 *                 default: 0
 *                 description: 0 = not paid, 1 = paid
 *     responses:
 *       201:
 *         description: Order created successfully
 *       400:
 *         description: Bad request
 */
// POST - Create a new order
router.post("/", async function (req, res, next) {
    try {
        const db = req.app.get("db");
        const { user_id, amount, tax, notes, status } = req.body;

        if (!user_id || !amount || tax === undefined) {
            return res.status(400).json({
                success: false,
                message: "user_id, amount, and tax are required",
            });
        }

        const order = await db.order.create({
            user_id,
            amount,
            tax,
            notes: notes || null,
            status: status !== undefined ? status : 0,
        });

        res.status(201).json({ success: true, data: order });
    } catch (error) {
        console.error(error);
        res.status(500).json({
            success: false,
            message: "Error creating order",
            error: error.message,
        });
    }
});

/**
 * @swagger
 * /api/v1/order/{id}:
 *   put:
 *     summary: Update an order by ID
 *     tags: [Order]
 *     parameters:
 *       - in: path
 *         name: id
 *         required: true
 *         schema:
 *           type: integer
 *     requestBody:
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             properties:
 *               user_id:
 *                 type: integer
 *               amount:
 *                 type: number
 *               tax:
 *                 type: number
 *               notes:
 *                 type: string
 *               status:
 *                 type: integer
 *                 enum: [0, 1]
 *     responses:
 *       200:
 *         description: Order updated successfully
 *       404:
 *         description: Order not found
 *   delete:
 *     summary: Delete an order by ID
 *     tags: [Order]
 *     parameters:
 *       - in: path
 *         name: id
 *         required: true
 *         schema:
 *           type: integer
 *     responses:
 *       200:
 *         description: Order deleted successfully
 *       404:
 *         description: Order not found
 */
// PUT - Update an order by id
router.put("/:id", async function (req, res, next) {
    try {
        const db = req.app.get("db");
        const { user_id, amount, tax, notes, status } = req.body;

        const order = await db.order.findByPk(req.params.id);

        if (!order) {
            return res
                .status(404)
                .json({ success: false, message: "Order not found" });
        }

        await order.update({
            user_id: user_id !== undefined ? user_id : order.user_id,
            amount: amount !== undefined ? amount : order.amount,
            tax: tax !== undefined ? tax : order.tax,
            notes: notes !== undefined ? notes : order.notes,
            status: status !== undefined ? status : order.status,
        });

        res.json({ success: true, data: order });
    } catch (error) {
        console.error(error);
        res.status(500).json({
            success: false,
            message: "Error updating order",
            error: error.message,
        });
    }
});

// DELETE - Delete an order by id
router.delete("/:id", async function (req, res, next) {
    try {
        const db = req.app.get("db");
        const order = await db.order.findByPk(req.params.id);

        if (!order) {
            return res
                .status(404)
                .json({ success: false, message: "Order not found" });
        }

        await order.destroy();

        res.json({ success: true, message: "Order deleted successfully" });
    } catch (error) {
        console.error(error);
        res.status(500).json({
            success: false,
            message: "Error deleting order",
            error: error.message,
        });
    }
});

module.exports = router;