Changed dataAccess index

src/lib/dataaccess/index.ts

@@ -1,7 +1,7 @@
-import {Runtime} from "inspector";
 import {Pool} from "pg";
 import globals from "../globals";
 import {QueryHelper} from "../QueryHelper";
+import {User} from "./User";
 
 const config = globals.config;
 const tableCreationFile = __dirname + "/../sql/create-tables.sql";
@@ -12,27 +12,21 @@ const dbClient: Pool = new Pool({
     port: config.database.port,
     user: config.database.user,
 });
-const queryHelper = new QueryHelper(dbClient, tableCreationFile);
-
-export class DTO {
-    private queryHelper: QueryHelper;
-
-    constructor() {
-        this.queryHelper = queryHelper;
-    }
+export const queryHelper = new QueryHelper(dbClient, tableCreationFile);
 
+namespace dataaccess {
     /**
      * Initializes everything that needs to be initialized asynchronous.
      */
-    public async init() {
-        await this.queryHelper.createTables();
+    export async function init() {
+        await queryHelper.createTables();
     }
 
     /**
      * Returns the user by id
      * @param userId
      */
-    public getUser(userId: number) {
+    export function getUser(userId: number) {
         return new User(userId);
     }
 
@@ -40,209 +34,30 @@ export class DTO {
      * Returns the user by handle.
      * @param userHandle
      */
-    public async getUserByHandle(userHandle: string) {
+    export async function getUserByHandle(userHandle: string) {
         const result = await this.queryHelper.first({
             text: "SELECT * FROM users WHERE users.handle = $1",
             values: [userHandle],
         });
         return new User(result.id, result);
     }
-}
-
-export class User {
-    public readonly id: number;
-    private $name: string;
-    private $handle: string;
-    private $email: string;
-    private $greenpoints: number;
-    private $joinedAt: string;
-    private dataLoaded: boolean;
 
     /**
-     * Constructor of the user
-     * @param id
-     * @param row
+     * Enum representing the types of votes that can be performed on a post.
      */
-    constructor(id: number, private row?: any) {
-        this.id = id;
+    export enum VoteType {
+        UPVOTE = "UPVOTE",
+        DOWNVOTE = "DOWNVOTE",
     }
 
     /**
-     * The name of the user
+     * Enum representing the types of request that can be created.
      */
-    public async name(): Promise<string> {
-        if (!this.dataLoaded) {
-            await this.loadData();
+    export enum RequestType {
+        FRIENDREQUEST = "FRIENDREQUEST",
+        GROUPINVITE = "GROUPINVITE",
+        EVENTINVITE = "EVENTINVITE",
     }
-        return this.$name;
-    }
-
-    /**
-     * Sets the username of the user
-     * @param name
-     */
-    public async setName(name: string): Promise<string> {
-        const result = await queryHelper.first({
-            text: "UPDATE TABLE users SET name = $1 WHERE id = $2",
-            values: [name, this.id],
-        });
-        return result.name;
 }
 
-    /**
-     * The unique handle of the user.
-     */
-    public async handle(): Promise<string> {
-        if (!this.dataLoaded) {
-            await this.loadData();
-        }
-        return this.$handle;
-    }
-
-    /**
-     * Updates the handle of the user
-     */
-    public async setHandle(handle: string): Promise<string> {
-        const result = await queryHelper.first({
-            text: "UPDATE TABLE users SET handle = $1 WHERE id = $2",
-            values: [handle, this.id],
-        });
-        return result.handle;
-    }
-
-    /**
-     * The email of the user
-     */
-    public async email(): Promise<string> {
-        if (!this.dataLoaded) {
-            await this.loadData();
-        }
-        return this.$email;
-    }
-
-    /**
-     * Sets the email of the user
-     * @param email
-     */
-    public async setEmail(email: string): Promise<string> {
-        const result = await queryHelper.first({
-            text: "UPDATE TABLE users SET email = $1 WHERE users.id = $2 RETURNING email",
-            values: [email, this.id],
-        });
-        return result.email;
-    }
-
-    /**
-     * The number of greenpoints of the user
-     */
-    public async greenpoints(): Promise<number> {
-        if (!this.dataLoaded) {
-            await this.loadData();
-        }
-        return this.$greenpoints;
-    }
-
-    /**
-     * Sets the greenpoints of a user.
-     * @param points
-     */
-    public async setGreenpoints(points: number): Promise<number> {
-        const result = await queryHelper.first({
-            text: "UPDATE users SET greenpoints = $1 WHERE id = $2 RETURNING greenpoints",
-            values: [points, this.id],
-        });
-        return result.greenpoints;
-    }
-
-    /**
-     * The date the user joined the platform
-     */
-    public async joinedAt(): Promise<Date> {
-        if (!this.dataLoaded) {
-            await this.loadData();
-        }
-        return new Date(this.$joinedAt);
-    }
-
-    /**
-     * Fetches the data for the user.
-     */
-    private async loadData(): Promise<void> {
-        let result: any;
-        if (this.row) {
-            result = this.row;
-        } else {
-            result = await queryHelper.first({
-                text: "SELECT * FROM users WHERE user.id = $1",
-                values: [this.id],
-            });
-        }
-        if (result) {
-            this.$name = result.name;
-            this.$handle = result.handle;
-            this.$email = result.email;
-            this.$greenpoints = result.greenpoints;
-            this.$joinedAt = result.joined_at;
-            this.dataLoaded = true;
-        }
-    }
-}
-
-export class Post {
-    public readonly id: number;
-    private $upvotes: number;
-    private $downvotes: number;
-    private $createdAt: string;
-    private $content: string;
-    private $author: number;
-    private $type: string;
-    private dataLoaded: boolean = false;
-
-    constructor(id: number, private row?: any) {
-        this.id = id;
-    }
-
-    /**
-     * Returns the upvotes of a post.
-     */
-    public async upvotes() {
-        if (!this.dataLoaded) {
-            await this.loadData();
-        }
-        return this.$upvotes;
-    }
-
-    /**
-     * Returns the downvotes of the post
-     */
-    public async downvotes() {
-        if (!this.dataLoaded) {
-            await this.loadData();
-        }
-        return this.$downvotes;
-    }
-
-    /**
-     * Loads the data from the database if needed.
-     */
-    private async loadData(): Promise<void> {
-        let result: any;
-        if (this.row) {
-            result = this.row;
-        } else {
-            result = await queryHelper.first({
-                text: "SELECT * FROM posts WHERE posts.id = $1",
-                values: [this.id],
-            });
-        }
-        if (result) {
-            this.$author = result.author;
-            this.$content = result.content;
-            this.$downvotes = result.downvotes;
-            this.$upvotes = result.upvotes;
-            this.$createdAt = result.created_at;
-            this.$type = result.type;
-            this.dataLoaded = true;
-        }
-    }
-}
+export default dataaccess;