order.controller.js

import Order from "../schemas/Order.js";
import User from "../schemas/User.js";

const addorder = async (req, res) => {
    const { userId, products, receiverInfo, total } = req.body
    try {
        const newOrder = await new Order({
            userId, products, receiverInfo, total
        }).save()
        res.status(200).send('Order DB에 저장 완료')
    } catch (error) {
        console.log(error)
        res.status(500).send('Order DB에 저장 실패')
    }
}

const Ordered = async (req, res) => {
    const { db } = req.body
    try {
        const ordered = await req.body.findOne({}, { _id: 0}).select(`${db}`)
        console.log("sub= ",ordered);
        res.json(ordered);
    } catch (error) {
        res.status(500).send('카테고리를 불러오지 못했습니다.')
    }
}

const showorder = async (req, res) => {
    try {
        const order = await Order.find({ userId: req.userId }).sort({_id:-1}).limit(1).populate({
            path: 'products.productId',
            model: 'Product'
        })
        console.log(order)
        res.status(200).json(order[0])
    } catch (error) {
        console.log(error)
        res.status(500).send('쇼핑카트를 불러오지 못했습니다.')
    }
}


const orderById = async (req, res, next, id) => {
    try {
        const user = await User.findById(id)
        if (!user) {
            res.status(404).send('사용자를 찾을 수 없습니다')
        }
        req.userId = user
        next()
    } catch (error) {
        console.log(error);
        res.status(500).send('사용자 아이디 검색 실패')
    }
}


const recommendPro = async (req,res)=>{
    try {
        const recommend = await Order.aggregate([
            { "$unwind": "$products" },
            // {
            //     $match:{'products.productId':'600e2fcc8afbb038487cc8fa'}
            // },
            {
                $group:
                {
                    _id:'$products.productId',
                    num_total:{$sum:1}
                }
            }
        ])
        console.log(recommend)
    } catch (error) {
        console.log(error)
        res.status(500).send('추천 실패')
    }
}

export default { addorder, showorder, orderById , Ordered , recommendPro}