Chore: Create service template (#27519)

Co-authored-by: Diego Sampaio <chinello@gmail.com>

_templates/service/new/.eslintrc.json.ejs.t

+---
+to: ee/apps/<%= name %>/.eslintrc.json
+---
+{
+	"extends": ["@rocket.chat/eslint-config"],
+	"ignorePatterns": ["**/dist"]
+}

_templates/service/new/package.json.ejs.t

+---
+to: ee/apps/<%= name %>/package.json
+---
+{
+	"name": "@rocket.chat/<%= name.toLowerCase() %>",
+	"private": true,
+	"version": "0.1.0",
+	"description": "Rocket.Chat service",
+	"scripts": {
+		"build": "tsc -p tsconfig.json",
+		"ms": "TRANSPORTER=${TRANSPORTER:-TCP} MONGO_URL=${MONGO_URL:-mongodb://localhost:3001/meteor} ts-node --files src/service.ts",
+		"test": "echo \"Error: no test specified\" && exit 1",
+		"lint": "eslint src",
+		"typecheck": "tsc --noEmit --skipLibCheck -p tsconfig.json"
+	},
+	"keywords": [
+		"rocketchat"
+	],
+	"author": "Rocket.Chat",
+	"dependencies": {
+		"@rocket.chat/core-typings": "workspace:^",
+		"@rocket.chat/emitter": "0.31.22",
+		"@rocket.chat/model-typings": "workspace:^",
+		"@rocket.chat/models": "workspace:^",
+		"@rocket.chat/rest-typings": "workspace:^",
+		"@rocket.chat/string-helpers": "0.31.22",
+		"@types/node": "^14.18.21",
+		"ejson": "^2.2.2",
+		"eventemitter3": "^4.0.7",
+		"fibers": "^5.0.3",
+		"mem": "^8.1.1",
+		"moleculer": "^0.14.21",
+		"mongodb": "^4.12.1",
+		"nats": "^2.4.0",
+		"pino": "^8.4.2",
+		"polka": "^0.5.2"
+	},
+	"devDependencies": {
+		"@rocket.chat/eslint-config": "workspace:^",
+		"@types/eslint": "^8.4.10",
+		"@types/polka": "^0.5.4",
+		"eslint": "^8.29.0",
+		"ts-node": "^10.9.1",
+		"typescript": "~4.5.5"
+	},
+	"main": "./dist/ee/apps/<%= name %>/src/service.js",
+	"files": [
+		"/dist"
+	]
+}
+

_templates/service/new/service.ejs.t

+---
+to: ee/apps/<%= name %>/src/service.ts
+---
+import type { Document } from 'mongodb';
+import polka from 'polka';
+
+import { api } from '../../../../apps/meteor/server/sdk/api';
+import { broker } from '../../../../apps/meteor/ee/server/startup/broker';
+import { Collections, getCollection, getConnection } from '../../../../apps/meteor/ee/server/services/mongo';
+import { registerServiceModels } from '../../../../apps/meteor/ee/server/lib/registerServiceModels';
+
+const PORT = process.env.PORT || 3034;
+
+(async () => {
+	const db = await getConnection();
+
+	const trash = await getCollection<Document>(Collections.Trash);
+
+	registerServiceModels(db, trash);
+
+	api.setBroker(broker);
+
+	// need to import service after models are registered
+	const { <%= h.changeCase.pascalCase(name) %> } = await import('./<%= h.changeCase.pascalCase(name) %>');
+
+	api.registerService(new <%= h.changeCase.pascalCase(name) %>());
+
+	await api.start();
+
+	polka()
+		.get('/health', async function (_req, res) {
+			try {
+				await api.nodeList();
+				res.end('ok');
+			} catch (err) {
+				console.error('Service not healthy', err);
+
+				res.writeHead(500);
+				res.end('not healthy');
+			}
+		})
+		.listen(PORT);
+})();

_templates/service/new/servicesClass.ejs.t

+---
+to: ee/apps/<%= name %>/src/<%= h.changeCase.pascalCase(name) %>.ts
+---
+import { ServiceClass } from '../../../../apps/meteor/server/sdk/types/ServiceClass';
+
+export class <%= h.changeCase.pascalCase(name) %> extends ServiceClass {
+	protected name = '<%= name %>';
+
+	constructor() {
+		super();
+
+		// your stuff
+	}
+
+	// more stuff
+}

_templates/service/new/tsconfig.json.ejs.t

+---
+to: ee/apps/<%= name %>/tsconfig.json
+---
+{
+	"extends": "../../../tsconfig.base.json",
+	"compilerOptions": {
+		"target": "es2018",
+		"lib": ["esnext", "dom"],
+		"allowJs": true,
+		"checkJs": false,
+		"incremental": true,
+
+		/* Strict Type-Checking Options */
+		"noImplicitAny": true,
+		"strictNullChecks": true,
+		"strictPropertyInitialization": false,
+		"strictFunctionTypes": false,
+
+		/* Additional Checks */
+		"noUnusedLocals": true,
+		"noUnusedParameters": true,
+		"noImplicitReturns": false,
+		"noFallthroughCasesInSwitch": false,
+
+		/* Module Resolution Options */
+		"outDir": "./dist",
+		"importsNotUsedAsValues": "preserve",
+		"declaration": false,
+		"declarationMap": false
+	},
+	"files": ["./src/service.ts"],
+	"include": ["../../../apps/meteor/definition/externals/meteor"],
+	"exclude": ["./dist"]
+}