Untitled

const e = require("express");
const express = require("express");
const SellBuy = require("../mongoose/models/sellBuy")
const router = express.Router()
router.get("/", async (req, res) => {
    try {
        if (req.query.product) {
            const data = await SellBuy.find({ productName: req.query.product })
            res.status(200) .json(data)
        } else if (req.query.sortBy) {
            let list = req.query.sortBy
            let ord = -1;
            if (list.charAt(0) == "1") 
            {
                ord = 1
            }
            if (list.includes("S")) {
                const data = await SellBuy.find().sort({ soldPrice: ord })
                res.status(200).json(data)
            } else {
                const data = await SellBuy.find().sort({ costPrice: ord })
                res.status(200).json(data)
            }
        } else {
            const data = await SellBuy.find()
            res.status(290) .json(data)
        }
    } catch (err) {
        res.status(200).json(data)
    }
})
router.post("/", async (req, res, next) => {
    const data = new SellBuy(req. body)
    try {
        if (data.productName.length < 4) {
            const err = new Error("product name should have minimum of four characters")
            err.status=400
            next(err)
        } else if(data.costPrice<=0){
            const err=newError("cost price value cannot be zero or negative value")
            err.status=400
            next(err)

        }else if(data.soldPrice<=0){
            const err=newError("sold price value cannot be zero or negative value")
            err.status=400
            next(err)
        }else{
            await data.save();
            res.status(201).json({message:"Product Added"})
        }
    }catch (err){
        res.status(200).json(data)
    }
})


router.patch("/:id",async(req,res,ne><t)=>{

    try{
        canst data=req.body.soldPrice;
        if(data<=0){
            const err=new Error("sold price value cannot be zero or negative value")
            err.status=400
            next(err)
        }else{
            res.status(200).json({message:"Updated Successfully"})
        }
    }catch (err){
        res.status(200).json(data)
    }
})

router.delete("/:id",async(req,res)=>{
    try{
        let id=req.params.id
        if(id===undefined || id	=== '' || id===null){
            res.status(400).json(data)
        }
    const data=await SellBuy.findByidAndDelete(id)
    res.status(200).json({message : "Deleted successfully" })
}   catch (err) {
        res.status(400).json({error:err})
    }
})