import * as smartq from 'smartq' import { Subject } from 'rxjs' import * as plugins from './smartcli.plugins' // import classes import { Objectmap } from 'lik' // interfaces export interface ICommandPromiseObject { commandName: string, promise: Promise } export interface ITriggerObservableObject { triggerName: string subject: Subject } export class Smartcli { argv: any questionsDone parseStarted: smartq.Deferred commands questions version: string /** * map of all Command/Promise objects to keep track */ allCommandPromisesMap = new Objectmap() /** * map of all Trigger/Observable objects to keep track */ allTriggerObservablesMap = new Objectmap() constructor () { this.argv = plugins.yargs this.questionsDone = smartq.defer() this.parseStarted = smartq.defer() } /** * adds an alias, meaning one equals the other in terms of command execution. */ addCommandAlias(keyArg, aliasArg): void { this.argv = this.argv.alias(keyArg, aliasArg) return } /** * adds a Command by returning a Promise that reacts to the specific commandString given. * Note: in e.g. "npm install something" the "install" is considered the command. */ addCommand(commandNameArg: string): Promise { let done = smartq.defer() this.allCommandPromisesMap.add({ commandName: commandNameArg, promise: done.promise }) this.parseStarted.promise .then(() => { if (this.argv._.indexOf(commandNameArg) === 0) { done.resolve(this.argv) } }) return done.promise } /** * gets a Promise for a command word */ getCommandPromiseByName(commandNameArg: string): Promise { return this.allCommandPromisesMap.find(commandDeferredObjectArg => { return commandDeferredObjectArg.commandName === commandNameArg }).promise } /** * adds a Trigger. Like addCommand(), but returns an subscribable observable */ addTrigger(triggerNameArg: string) { let triggerSubject = new Subject() this.allTriggerObservablesMap.add({ triggerName: triggerNameArg, subject: triggerSubject }) this.addCommand(triggerNameArg).then(() => { triggerSubject.next(this.argv) }) return triggerSubject } /** * execute trigger by name * @param commandNameArg - the name of the command to trigger */ trigger(triggerName: string) { let triggerSubject = this.allTriggerObservablesMap.find(triggerObservableObjectArg => { return triggerObservableObjectArg.triggerName === triggerName }).subject triggerSubject.next(this.argv) return triggerSubject } /** * allows to specify help text to be printed above the rest of the help text */ addHelp(optionsArg: { helpText: string }) { this.addCommand('help').then(argvArg => { plugins.beautylog.log(optionsArg.helpText) }) } /** * specify version to be printed for -v --version */ addVersion(versionArg: string) { this.version = versionArg this.addCommandAlias('v', 'version') this.parseStarted.promise .then(() => { if (this.argv.v) { console.log(this.version) } }) } /** * returns promise that is resolved when no commands are specified */ standardTask(): Promise { let done = smartq.defer() this.allCommandPromisesMap.add({ commandName: 'standard', promise: done.promise }) this.parseStarted.promise .then(() => { if (this.argv._.length === 0 && !this.argv.v) { done.resolve(this.argv) } else { done.reject(this.argv) } }) return done.promise } /** * start the process of evaluating commands */ startParse(): void { this.argv = this.argv.argv this.parseStarted.resolve() return } }