137 lines
4.3 KiB
TypeScript
137 lines
4.3 KiB
TypeScript
import { getSingleton } from "../helpers/singletonMethod";
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// Symbols for the Property Registery:
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const _registeredDispatcherMethods_ = Symbol('_registeredDispatcherMethods_');
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const _registeredDispatcherParams_ = Symbol('_registeredDispatcherParams_');
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// Interfaces for the Class
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export interface IExportToDispatcherParameters {
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uri?: string,
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}
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export interface IExportMethodToDispatcherParameters {
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uri?: string,
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}
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export interface IExportFunctionToDispatcherParameters {
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uri: string,
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}
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export interface IExportPropertyToDispatcherParameters {
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uri?: string,
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readonly?: boolean
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}
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const container = getSingleton('nopeBackendDispatcher.container', () => {
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return {
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methods: new Map<string, {
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uri: string,
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callback: (...args) => Promise<any>,
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options: IExportMethodToDispatcherParameters
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}>(),
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parameters: new Map<string, {
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uri: string,
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callback: (...args) => Promise<any>,
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options: IExportPropertyToDispatcherParameters
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}>(),
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functions: new Map<string, {
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uri: string,
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callback: (...args) => Promise<any>,
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options: IExportFunctionToDispatcherParameters
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}>()
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}
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});
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/**
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* Decorator used to export a Class API over openAPI
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* @param options
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*/
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export function exportsElementsToDispatcher(options: IExportToDispatcherParameters) {
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return function <T extends { new(...args: any[]): {} }>(Base: T) {
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return class extends Base {
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constructor(...args: any[]) {
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super(...args);
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const _this = this as any;
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// extract the Registered Methods of the Class.
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const registeredMethods = Base.prototype[_registeredDispatcherMethods_] as Map<string, IExportMethodToDispatcherParameters>;
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const registeredParams = Base.prototype[_registeredDispatcherParams_] as Map<string, IExportPropertyToDispatcherParameters>;
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// Online if they are present, iterate over them
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if (registeredMethods) {
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registeredMethods.forEach((options, methodName) => {
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// Register the Methods
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const uri = (options.uri || Base.prototype.name) + (options.uri || methodName);
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container.instance.methods.set(uri, {
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callback: async (...args) => _this[methodName](...args),
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uri,
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options
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});
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});
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}
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// Online if they are present, iterate over them
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if (registeredParams) {
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registeredParams.forEach((options, parameterName) => {
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// Register the Methods
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const uri = (options.uri || Base.prototype.name) + (options.uri || parameterName);
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container.instance.parameters.set(uri, {
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callback: async (...args) => _this[parameterName](...args),
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uri,
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options
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});
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});
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}
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}
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};
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}
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}
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/**
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* Decorator, used to export the Method.
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* @param options
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*/
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export function exportMethodToDispatcher(options: IExportMethodToDispatcherParameters) {
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return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) {
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target[_registeredDispatcherMethods_] = target[_registeredDispatcherMethods_] || new Map<string, IExportMethodToDispatcherParameters>();
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// Here we just add some information that class decorator will use
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target[_registeredDispatcherMethods_].set(propertyKey, options);
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};
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}
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/**
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* Decorator, will create a POST and GET api for the Parameter.
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* @param options
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*/
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export function exportPropertyToDispatcher(options: IExportPropertyToDispatcherParameters) {
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return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) {
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target[_registeredDispatcherParams_] = target[_registeredDispatcherParams_] || new Map<string, IExportPropertyToDispatcherParameters>();
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// Here we just add some information that class decorator will use
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target[_registeredDispatcherParams_].set(propertyKey, options);
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};
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}
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/**
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* Defintion of a Functon.
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*/
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export type callable<T> = {
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(...args): T
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}
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/**
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* Decorator, that will export the Function to a Dispatcher
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* @param func The Function
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* @param options The Options.
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*/
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export function exportFunctionToDispatcher<T>(func: T, options: IExportFunctionToDispatcherParameters) {
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container.instance.functions.set(options.uri, {
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callback: async (...args) => await ((func as any)(...args)),
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options,
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uri: options.uri || (func as any).name
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});
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return func;
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}
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