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

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

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

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

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

/**
 * @swagger
 * /api/v1/transaction:
 *   post:
 *     summary: Create a new transaction
 *     tags: [Transaction]
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             required:
 *               - order_id
 *               - user_id
 *               - shipping_dock_id
 *               - amount
 *             properties:
 *               order_id:
 *                 type: integer
 *               user_id:
 *                 type: integer
 *               shipping_dock_id:
 *                 type: integer
 *               amount:
 *                 type: number
 *                 format: decimal
 *               notes:
 *                 type: string
 *     responses:
 *       201:
 *         description: Transaction created successfully
 *       400:
 *         description: Bad request
 */
// POST - Create a new transaction
router.post("/", async function (req, res, next) {
    try {
        const db = req.app.get("db");
        const { order_id, user_id, shipping_dock_id, amount, notes } = req.body;

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

        const transaction = await db.transaction.create({
            order_id,
            user_id,
            shipping_dock_id,
            amount,
            notes: notes || null,
        });

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

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

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

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

        await transaction.update({
            order_id: order_id !== undefined ? order_id : transaction.order_id,
            user_id: user_id !== undefined ? user_id : transaction.user_id,
            shipping_dock_id:
                shipping_dock_id !== undefined
                    ? shipping_dock_id
                    : transaction.shipping_dock_id,
            amount: amount !== undefined ? amount : transaction.amount,
            notes: notes !== undefined ? notes : transaction.notes,
        });

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

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

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

        await transaction.destroy();

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

module.exports = router;