[Fix #3] Delete account

app/routes/user/delete.js

@@ -1,5 +1,42 @@
-module.exports = (req, res) => {
-  const user = {};
+const mongoose = require('mongoose');
+const jwt = require('jsonwebtoken');
+const bcrypt = require('bcrypt-nodejs');
 
-  res.status(200).json({ user });
+module.exports = (req, res, next) => {
+  const UserModel = mongoose.model('User');
+
+  const { user } = jwt.decode(req.headers.authorization);
+
+  return UserModel.findOne({ _id: user.id })
+    .lean()
+    .exec()
+    .then((User) => {
+      if (User === null) {
+        return next({ status: 404, message: 'User does not exists.' });
+      }
+
+      return bcrypt.compare(
+        req.body.password,
+        User.password,
+        (error, result) => {
+          if (!result || error) {
+            return next({
+              status: 401,
+              message: 'Authentication failed. Wrong password.',
+            });
+          }
+
+          return UserModel.deleteOne({ _id: User._id }, (err) => {
+            if (err) {
+              return next({ status: 500 });
+            }
+
+            return res.status(204).json({
+              success: true,
+              message: 'Account deleted.',
+            });
+          });
+        },
+      );
+    });
 };

app/validation/user/delete.js

@@ -0,0 +1,22 @@
+const Joi = require('joi');
+
+module.exports = (req, res, next) => {
+  const schema = Joi.object().keys({
+    password: Joi.string().required(),
+  });
+
+  Joi.validate({
+    password: req.body.password,
+  },
+  schema, (validateErr) => {
+    if (validateErr) {
+      return next({
+        status: 400,
+        message: 'Form is invalid.',
+        error: validateErr.details,
+      });
+    }
+
+    return next();
+  });
+};