extollo-cli/src/service/CommandLine.ts

import {Unit, Logging} from "@extollo/lib"
import {Singleton, Instantiable, Inject} from "@extollo/di"
import {Collection} from "@extollo/util"
import {CommandLineApplication} from "./CommandLineApplication"
import {Directive} from "../Directive"
import {Template} from "../Template"
import {directive_template} from "../templates/directive"

@Singleton()
export class CommandLine extends Unit {
    @Inject()
    protected readonly logging!: Logging

    protected directives: Collection<Instantiable<Directive>> = new Collection<Instantiable<Directive>>()
    protected templates: Collection<Template> = new Collection<Template>()

    constructor() { super() }

    async up() {
        this.registerTemplate(directive_template)
    }

    public isCLI() {
        return this.app().hasUnit(CommandLineApplication)
    }

    public getASCIILogo() {
        return `  ______      _        _ _
 |  ____|    | |      | | |
 | |__  __  _| |_ ___ | | | ___
 |  __| \\ \\/ / __/ _ \\| | |/ _ \\
 | |____ >  <| || (_) | | | (_) |
 |______/_/\\_\\\\__\\___/|_|_|\\___/`
    }

    public registerDirective(directiveClass: Instantiable<Directive>) {
        if ( !this.directives.includes(directiveClass) ) {
            this.directives.push(directiveClass)
        }
    }

    public hasDirective(directiveClass: Instantiable<Directive>) {
        return this.directives.includes(directiveClass)
    }

    public getDirectives() {
        return this.directives.clone()
    }

    public registerTemplate(template: Template) {
        if ( !this.templates.firstWhere('name', '=', template.name) ) {
            this.templates.push(template)
        } else {
            this.logging.warn(`Duplicate template will not be registered: ${template.name}`)
            this.logging.debug(`Duplicate template registered at: ${(new Error()).stack}`)
        }
    }

    public hasTemplate(name: string) {
        return !!this.templates.firstWhere('name', '=', name)
    }

    public getTemplate(name: string) {
        return this.templates.firstWhere('name', '=', name)
    }

    public getTemplates() {
        return this.templates.clone()
    }
}