From c13f267154d73aab2abf663062ed237eb91b1d3e Mon Sep 17 00:00:00 2001
From: Hassan1290 <kingsantoz19@gmail.com>
Date: Tue, 19 Aug 2025 09:37:38 -0400
Subject: [PATCH] week_20

---
 middleware/auth.js |  35 +++++++++++++--
 routes/auth.js     | 106 ++++++++++++++++++++++++++++++++++++++++++---
 routes/tasks.js    |   2 +-
 3 files changed, 134 insertions(+), 9 deletions(-)

diff --git a/middleware/auth.js b/middleware/auth.js
index 7deb650..653478b 100644
--- a/middleware/auth.js
+++ b/middleware/auth.js
@@ -7,14 +7,43 @@ export const authenticateToken = async (req, res, next) => {
   try {
     // TODO: Implement the authentication middleware
     // 1. Get the token from the request header
+    const authHeader = req.headers["authorization"];
+    const token = authHeader && authHeader.split(" ")[1];
+
+    //check the token
+    if (!token) {
+      return res.status(401).json({
+        success: false,
+        message: "Access token required",
+      });
+    }
+
     // 2. Verify the token
+    const decoded = jwt.verify(token, process.env.JWT_SECRET || "mysecret");
+
     // 3. Get the user from the database
+    const user = await prisma.user.findUnique({
+      where: { id: decoded.userId },
+      select: {
+        id: true,
+        name: true,
+        email: true,
+      },
+    });
+
     // 4. If the user doesn't exist, throw an error
+    if (!user) {
+      return res.status(401).json({
+        success: false,
+        message: "Invalid token - user not found",
+      });
+    }
+
     // 5. Attach the user to the request object
-    // 6. Call the next middleware
+    req.user = user;
 
-    
-    
+    // 6. Call the next middleware
+    next();
   } catch (error) {
     if (error.name === "JsonWebTokenError") {
       return res.status(401).json({
diff --git a/routes/auth.js b/routes/auth.js
index 7a78cfc..c3bb700 100644
--- a/routes/auth.js
+++ b/routes/auth.js
@@ -11,15 +11,65 @@ const JWT_SECRET = process.env.JWT_SECRET || "your-secret-key";
 router.post("/register", async (req, res) => {
   try {
     // TODO: Implement the registration logic
+    const { name, email, password } = req.body;
+
     // 1. Validate the input
+    if (!name || !email || !password) {
+      return res.status(400).json({
+        success: false,
+        message: "name, email, and password are required",
+      });
+    }
+
     // 2. Check if the user already exists
+    const existingUser = await prisma.user.findUnique({
+      where: { email },
+    });
+
+    if (existingUser) {
+      return res.status(400).json({
+        success: false,
+        message: "User with this email already exists",
+      });
+    }
+
     // 3. Hash the password
+    const saltRound = 10;
+    const hashedPassword = await bcrypt.hash(password, saltRound);
+
     // 4. Create the user
-    // 5. Generate a JWT token
-    // 6. Return the user data and token
+    const newUser = await prisma.user.create({
+      data: {
+        name,
+        email,
+        password: hashedPassword,
+      },
+      select: {
+        // id: true,
+        name: true,
+        email: true,
+        password: true,
+        createdAt: true,
+      },
+    });
 
+    // 5. Generate a JWT token
+    const token = jwt.sign(
+      { userId: newUser.id },
+      process.env.JWT_SECRET || "mysecret",
+      { expiresIn: "24" }
+    );
 
+    // 6. Return the user data and token
 
+    res.status(201).json({
+      success: true,
+      message: "User registered successfully",
+      data: {
+        user: newUser,
+        token: token,
+      },
+    });
   } catch (error) {
     console.error("Registration error:", error);
     res.status(500).json({
@@ -33,14 +83,60 @@ router.post("/register", async (req, res) => {
 // POST /api/auth/login - Login user
 router.post("/login", async (req, res) => {
   try {
-    // TODO: Implement the login logic
+    // TODO: Implement th login logic
+    const { email, password } = req.body;
+
     // 1. Validate the input
+    if(!email || !password) {
+      return res.status(400).json({
+        success: false,
+        message: "Email and password are required"
+      })
+    }
+
     // 2. Check if the user exists
+    const user = await prisma.user.findUnique({
+      where: { email }
+    });
+
+    if(!user) {
+      return res.status(401).json({
+        success: false,
+        message: "Invalid email or password",
+      });
+    }
+
     // 3. Compare the password
+    const isUserPasswordValid = await bcrypt.compare(password, user.password)
+
+    if(!isUserPasswordValid){
+      return res.status(401).json({
+        success: false,
+        message: "your password is wrong"
+      })
+    }
+
     // 4. Generate a JWT token
+    const token = jwt.sign( 
+      { userId: user.id, email: email },
+      process.env.JWT_SECRET || "mysecret",
+      { expiresIn: "24h"} 
+    )
+
+    // return user info and token, but don't include password
+    const { password: _, ...userData} = user;
+
     // 5. Return the user data and token
-    
-    
+    res.status(200).json({
+      success: true,
+      message: "Loggin successful",
+      data: {
+        user: userData,
+        token,
+      }
+    })
+
+
   } catch (error) {
     console.error("Login error:", error);
     res.status(500).json({
diff --git a/routes/tasks.js b/routes/tasks.js
index dca9b03..d7867f3 100644
--- a/routes/tasks.js
+++ b/routes/tasks.js
@@ -22,7 +22,7 @@ router.use(authenticateToken);
 // This route handles GET requests to /api/tasks
 // req = request object (contains data sent by client)
 // res = response object (used to send data back to client)
-router.get("/tasks", async (req, res) => {
+router.get("/tasks", authenticateToken, async (req, res) => {
   try {
     const tasks = await getAllTasks(req.user.id);