feat : filter and sorting

Author: shivam7147

backend/src/controllers/product.controller.ts

@@ -2,60 +2,103 @@ import { Request, Response } from "express";
 import Product from "../models/product.model";
 
 export const createProduct = async (req: Request, res: Response) => {
-    try {
-        const { name, description, price, category, stock } = req.body;
-
-        if (!name || !description || !price) {
-            return res.status(400).json({ message: "Missing required fields" });
-        }
-
-        const product = await Product.create({ name, description, price, category, stock });
-        return res.status(201).json(product);
-    } catch (error) {
-        console.error("Create Product Error:", error);
-        res.status(500).json({ message: "Server error" });
+  try {
+    const { name, description, price, category, stock } = req.body;
+
+    if (!name || !description || !price) {
+      return res.status(400).json({ message: "Missing required fields" });
     }
+
+    const product = await Product.create({
+      name,
+      description,
+      price,
+      category,
+      stock,
+    });
+    return res.status(201).json(product);
+  } catch (error) {
+    console.error("Create Product Error:", error);
+    res.status(500).json({ message: "Server error" });
+  }
 };
 
-export const getProducts = async (_req: Request, res: Response) => {
-    try {
-        const products = await Product.find().sort({ createdAt: -1 });
-        res.status(200).json(products);
-    } catch (error) {
-        console.error("Get Products Error:", error);
-        res.status(500).json({ message: "Server error" });
+export const getProducts = async (req: Request, res: Response) => {
+  try {
+    const { search, category, minPrice, maxPrice, sort } = req.query;
+
+    const query: any = {};
+
+    // 🔍 Search by name or description
+    if (search) {
+      query.$or = [
+        { name: { $regex: search, $options: "i" } },
+        { description: { $regex: search, $options: "i" } },
+      ];
+    }
+
+    // 🏷️ Filter by category
+    if (category && category !== "all") {
+      query.category = category;
+    }
+
+    // 💰 Filter by price range
+    if (minPrice || maxPrice) {
+      query.price = {};
+      if (minPrice) query.price.$gte = Number(minPrice);
+      if (maxPrice) query.price.$lte = Number(maxPrice);
     }
+
+    // 🧾 Build base query
+    let mongoQuery = Product.find(query);
+
+    // 📊 Sorting
+    if (sort === "asc" || sort === "lowToHigh")
+      mongoQuery = mongoQuery.sort({ price: 1 });
+    else if (sort === "desc" || sort === "highToLow")
+      mongoQuery = mongoQuery.sort({ price: -1 });
+    else mongoQuery = mongoQuery.sort({ createdAt: -1 });
+
+    const products = await mongoQuery;
+
+    res.status(200).json(products);
+  } catch (error) {
+    console.error("Get Products Error:", error);
+    res.status(500).json({ message: "Server error" });
+  }
 };
 
 export const getProductById = async (req: Request, res: Response) => {
-    try {
-        const product = await Product.findById(req.params.id);
-        if (!product) return res.status(404).json({ message: "Product not found" });
-        res.status(200).json(product);
-    } catch (error) {
-        console.error("Get Product Error:", error);
-        res.status(500).json({ message: "Server error" });
-    }
+  try {
+    const product = await Product.findById(req.params.id);
+    if (!product) return res.status(404).json({ message: "Product not found" });
+    res.status(200).json(product);
+  } catch (error) {
+    console.error("Get Product Error:", error);
+    res.status(500).json({ message: "Server error" });
+  }
 };
 
 export const updateProduct = async (req: Request, res: Response) => {
-    try {
-        const product = await Product.findByIdAndUpdate(req.params.id, req.body, { new: true });
-        if (!product) return res.status(404).json({ message: "Product not found" });
-        res.status(200).json(product);
-    } catch (error) {
-        console.error("Update Product Error:", error);
-        res.status(500).json({ message: "Server error" });
-    }
+  try {
+    const product = await Product.findByIdAndUpdate(req.params.id, req.body, {
+      new: true,
+    });
+    if (!product) return res.status(404).json({ message: "Product not found" });
+    res.status(200).json(product);
+  } catch (error) {
+    console.error("Update Product Error:", error);
+    res.status(500).json({ message: "Server error" });
+  }
 };
 
 export const deleteProduct = async (req: Request, res: Response) => {
-    try {
-        const product = await Product.findByIdAndDelete(req.params.id);
-        if (!product) return res.status(404).json({ message: "Product not found" });
-        res.status(200).json({ message: "Product deleted successfully" });
-    } catch (error) {
-        console.error("Delete Product Error:", error);
-        res.status(500).json({ message: "Server error" });
-    }
+  try {
+    const product = await Product.findByIdAndDelete(req.params.id);
+    if (!product) return res.status(404).json({ message: "Product not found" });
+    res.status(200).json({ message: "Product deleted successfully" });
+  } catch (error) {
+    console.error("Delete Product Error:", error);
+    res.status(500).json({ message: "Server error" });
+  }
 };