Moved all methods to modules (#460)

* Moved all methods to modules

* removed old mongoDB file

Server/db/mongo/modules/userModule.js

@@ -0,0 +1,160 @@
+const UserModel = require("../../../models/user");
+const { errorMessages } = require("../../../utils/messages");
+const { GenerateAvatarImage } = require("../../../utils/imageProcessing");
+
+const DUPLICATE_KEY_CODE = 11000; // MongoDB error code for duplicate key
+const { ParseBoolean } = require("../../../utils/utils");
+
+/**
+ * Insert a User
+ * @async
+ * @param {Express.Request} req
+ * @param {Express.Response} res
+ * @returns {Promise<UserModel>}
+ * @throws {Error}
+ */
+const insertUser = async (req, res) => {
+  try {
+    const userData = { ...req.body };
+    if (req.file) {
+      // 1.  Save the full size image
+      userData.profileImage = {
+        data: req.file.buffer,
+        contentType: req.file.mimetype,
+      };
+
+      // 2.  Get the avatar sized image
+      const avatar = await GenerateAvatarImage(req.file);
+      userData.avatarImage = avatar;
+    }
+    console.log(userData);
+    const newUser = new UserModel(userData);
+    await newUser.save();
+    return await UserModel.findOne({ _id: newUser._id })
+      .select("-password")
+      .select("-profileImage"); // .select() doesn't work with create, need to save then find
+  } catch (error) {
+    if (error.code === DUPLICATE_KEY_CODE) {
+      throw new Error(errorMessages.DB_USER_EXISTS);
+    }
+    throw error;
+  }
+};
+
+/**
+ * Get User by Email
+ * Gets a user by Email.  Not sure if we'll ever need this except for login.
+ * If not needed except for login, we can move password comparison here
+ * Throws error if user not found
+ * @async
+ * @param {Express.Request} req
+ * @param {Express.Response} res
+ * @returns {Promise<UserModel>}
+ * @throws {Error}
+ */
+const getUserByEmail = async (req, res) => {
+  try {
+    // Need the password to be able to compare, removed .select()
+    // We can strip the hash before returing the user
+    const user = await UserModel.findOne({ email: req.body.email }).select(
+      "-profileImage"
+    );
+    if (user) {
+      return user;
+    } else {
+      throw new Error(errorMessages.DB_USER_NOT_FOUND);
+    }
+  } catch (error) {
+    throw error;
+  }
+};
+
+/**
+ * Update a user by ID
+ * @async
+ * @param {Express.Request} req
+ * @param {Express.Response} res
+ * @returns {Promise<UserModel>}
+ * @throws {Error}
+ */
+
+const updateUser = async (req, res) => {
+  const candidateUserId = req.params.userId;
+
+  try {
+    const candidateUser = { ...req.body };
+    // ******************************************
+    // Handle profile image
+    // ******************************************
+
+    if (ParseBoolean(candidateUser.deleteProfileImage) === true) {
+      candidateUser.profileImage = null;
+      candidateUser.avatarImage = null;
+    } else if (req.file) {
+      // 1.  Save the full size image
+      candidateUser.profileImage = {
+        data: req.file.buffer,
+        contentType: req.file.mimetype,
+      };
+
+      // 2.  Get the avaatar sized image
+      const avatar = await GenerateAvatarImage(req.file);
+      candidateUser.avatarImage = avatar;
+    }
+
+    // ******************************************
+    // End handling profile image
+    // ******************************************
+
+    const updatedUser = await UserModel.findByIdAndUpdate(
+      candidateUserId,
+      candidateUser,
+      { new: true } // Returns updated user instead of pre-update user
+    )
+      .select("-password")
+      .select("-profileImage");
+    return updatedUser;
+  } catch (error) {
+    throw error;
+  }
+};
+
+/**
+ * Delete a user by ID
+ * @async
+ * @param {Express.Request} req
+ * @param {Express.Response} res
+ * @returns {Promise<UserModel>}
+ * @throws {Error}
+ */
+const deleteUser = async (req, res) => {
+  const userId = req.params.userId;
+  try {
+    const deletedUser = await UserModel.findByIdAndDelete(userId);
+    if (!deletedUser) {
+      throw new Error(errorMessages.DB_USER_NOT_FOUND);
+    }
+    return deletedUser;
+  } catch (error) {
+    throw error;
+  }
+};
+
+const getAllUsers = async (req, res) => {
+  try {
+    const users = await UserModel.find()
+      .select("-password")
+      .select("-profileImage");
+    return users;
+  } catch (error) {
+    throw error;
+  }
+};
+
+module.exports = {
+  insertUser,
+  getUserByEmail,
+  updateUser,
+  deleteUser,
+  getAllUsers,
+};