ADD: signup service logic

components/user/userService.js

@@ -1,6 +1,47 @@
 // userService.js
 const User = require('./userModel')
 const AppError = require('../../globalErrorHandler/AppError')
+const jwt = require('jsonwebtoken')
+const bcrypt = require('bcryptjs')
+const maxAge = 60 * 60 * 24 * 90
+
+const signToken = (id) => {
+    return jwt.sign({ id }, process.env.JWT_SECRET, {
+        expiresIn: maxAge,
+    })
+}
+
+const signup = async (name, email, password, passwordConfirm) => {
+    let userExist = await User.findOne({ email }, null, null)
+
+    if (userExist) {
+        throw new AppError('UserAlreadyExist', 500, {})
+    }
+
+    if (password != passwordConfirm) throw new AppError('PasswordIncorrect', 401, {})
+
+    const hashedPassword = bcrypt.hashSync(password, 10)
+
+    const user = await createUser({
+        name,
+        email,
+        password: hashedPassword,
+        passwordConfirm: undefined,
+    })
+
+    const token = signToken(user._id)
+    const cookieOptions = {
+        expires: new Date(Date.now() + maxAge * 24 * 60 * 60 * 1000),
+        httpOnly: true,
+    }
+
+    if (process.env.NODE_ENV === 'production') cookieOptions.secure = true
+
+    // set user password to undefined before sending data
+    user.password = undefined
+    return { token, user, cookieOptions }
+}
+
 const loginUser = async (rawPassword) => {
     const user = await User.findOne({ rawPassword }, null, null)
 
@@ -61,4 +102,5 @@ module.exports = {
     deleteUser,
     updateUser,
     createUser,
+    signup,
 }