add server/route/management API

src/class/Route.ts

@@ -0,0 +1,75 @@
+/* eslint-disable consistent-return */
+import { Router, Request, Response } from 'express';
+import { Server } from '.';
+
+export default class Route {
+  public server: Server;
+
+  public conf: { path: string; deprecated?: boolean; maintenance?: boolean; };
+
+  public router: Router;
+
+  constructor(server: Server, options: { path: string, deprecated?: boolean, maintenance?: boolean }) {
+    this.server = server;
+    this.conf = options;
+    this.router = Router();
+  }
+
+  public bind() {}
+
+  public init() {
+    this.router.all('*', (req, res, next) => {
+      this.server.client.util.signale.log(`'${req.method}' request from '${req.ip}' to '${req.hostname}${req.path}'.`);
+      if (this.conf.maintenance === true) res.status(503).json({ code: this.constants.codes.MAINTENANCE_OR_UNAVAILABLE, message: this.constants.messages.MAINTENANCE_OR_UNAVAILABLE });
+      else if (this.conf.deprecated === true) res.status(501).json({ code: this.constants.codes.DEPRECATED, message: this.constants.messages.DEPRECATED });
+      else next();
+    });
+  }
+
+  public deprecated(): void {
+    this.router.all('*', (_req, res) => {
+      res.status(501).json({ code: this.constants.codes.DEPRECATED, message: this.constants.messages.DEPRECATED });
+    });
+  }
+
+  public maintenance(): void {
+    this.router.all('*', (_req, res) => {
+      res.status(503).json({ code: this.constants.codes.MAINTENANCE_OR_UNAVAILABLE, message: this.constants.messages.MAINTENANCE_OR_UNAVAILABLE });
+    });
+  }
+
+  public handleError(error: Error, res: Response) {
+    res.status(500).json({ code: this.constants.codes.SERVER_ERROR, message: this.constants.messages.SERVER_ERROR });
+    this.server.parent.client.util.handleError(error);
+  }
+
+  get constants() {
+    return {
+      codes: {
+        SUCCESS: 100,
+        UNAUTHORIZED: 101,
+        PERMISSION_DENIED: 104,
+        ENDPOINT_NOT_FOUND: 104,
+        NOT_FOUND: 1041,
+        ACCOUNT_NOT_FOUND: 1041,
+        CLIENT_ERROR: 1044,
+        SERVER_ERROR: 105,
+        DEPRECATED: 1051,
+        MAINTENANCE_OR_UNAVAILABLE: 1053,
+      },
+      messages: {
+        UNAUTHORIZED: ['CREDENTIALS_INVALID', 'The credentials you supplied are invalid.'],
+        BEARER_TOKEN_INVALID: ['BEARER_TOKEN_INVALID', 'The Bearer token you supplied is invalid.'],
+        PERMISSION_DENIED: ['PERMISSION_DENIED', 'You do not have valid credentials to access this resource.'],
+        NOT_FOUND: ['NOT_FOUND', 'The resource you requested cannot be located.'],
+        ENDPOINT_NOT_FOUND: ['ENDPOINT_NOT_FOUND', 'The endpoint you requested does not exist or cannot be located.'],
+        SERVER_ERROR: ['INTERNAL_ERROR', 'An internal error has occurred, Engineers have been notified.'],
+        DEPRECATED: ['ENDPOINT_OR_RESOURCE_DEPRECATED', 'The endpoint or resource you\'re trying to access has been deprecated.'],
+        MAINTENANCE_OR_UNAVAILABLE: ['SERVICE_UNAVAILABLE', 'The endpoint or resource you\'re trying to access is either in maintenance or is not available.'],
+      },
+      discord: {
+        SERVER_ID: '446067825673633794',
+      },
+    };
+  }
+}

src/class/Server.ts

@@ -0,0 +1,69 @@
+import express from 'express';
+import helmet from 'helmet';
+import { promises as fs } from 'fs';
+import { Server as HTTPServer } from 'http';
+import { Collection, ServerManagement, Route } from '.';
+
+export default class Server {
+  public app: express.Application;
+
+  public routes: Collection<Route>;
+
+  public parent: ServerManagement;
+
+  public port: number;
+
+  private root: string;
+
+  constructor(parent: ServerManagement, port: number, routeRoot: string) {
+    this.parent = parent;
+    this.app = express();
+    this.routes = new Collection<Route>();
+    this.port = port;
+    this.root = routeRoot;
+
+    this.loadRoutes();
+    this.init();
+  }
+
+  get client() {
+    return this.parent.client;
+  }
+
+  public async loadRoutes() {
+    const routes = await fs.readdir(`${this.root}`);
+    for (const routeFile of routes) {
+      // eslint-disable-next-line new-cap
+      const route: Route = new (require(`${this.root}/${routeFile}`).default)(this);
+      if (route.conf.deprecated) {
+        route.deprecated();
+      } else if (route.conf.maintenance) {
+        route.maintenance();
+      } else {
+        route.init();
+        route.bind();
+      }
+      this.parent.client.util.signale.success(`Successfully loaded route 'http://localhost:${this.port}/${route.conf.path}'.`);
+      this.routes.add(route.conf.path, route);
+      this.app.use(route.conf.path, route.router);
+    }
+    this.app.listen(this.port);
+  }
+
+  public init() {
+    this.app.set('trust proxy', 'loopback');
+    this.app.use(helmet({
+      hsts: false,
+      hidePoweredBy: false,
+      contentSecurityPolicy: {
+        directives: {
+          defaultSrc: ["'self'"],
+        },
+      },
+    }));
+  }
+
+  public listen(port: number): HTTPServer {
+    return this.app.listen(port);
+  }
+}

src/class/ServerManagement.ts

@@ -0,0 +1,27 @@
+import express from 'express';
+import { promises as fs } from 'fs';
+import { Client, Collection, Server } from '.';
+// import serverSetup from '../api/server';
+
+export default class ServerManagement {
+  public client: Client;
+
+  public servers: Collection<Server>;
+
+  constructor(client: Client) {
+    this.client = client;
+    this.servers = new Collection<Server>();
+    this.loadServers();
+  }
+
+  public async loadServers() {
+    const apiRoot = await fs.readdir(`${__dirname}/../api`);
+    for (const api of apiRoot) {
+      // eslint-disable-next-line no-continue
+      if (api === 'server.js') continue;
+      const server: Server = require(`${__dirname}/../api/${api}/main.js`).default(this);
+      this.servers.add(api, server);
+      this.client.util.signale.success(`Successfully loaded server '${api}'.`);
+    }
+  }
+}

src/class/index.ts

@@ -3,4 +3,7 @@ export { default as Collection } from './Collection';
 export { default as Command } from './Command';
 export { default as Moderation } from './Moderation';
 export { default as RichEmbed } from './RichEmbed';
+export { default as Route } from './Route';
+export { default as Server } from './Server';
+export { default as ServerManagement } from './ServerManagement';
 export { default as Util } from './Util';