import {Unit} from "@extollo/lib"
import {Singleton, Instantiable} from "@extollo/di"
import {Collection} from "@extollo/util"
import {CommandLineApplication} from "./CommandLineApplication"
import {Directive} from "../Directive";

@Singleton()
export class CommandLine extends Unit {
    protected directives: Collection<Instantiable<Directive>> = new Collection<Instantiable<Directive>>()

    constructor() { super() }

    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()
    }
}