import {ContainerBlueprint, Instantiable, isInstantiableOf} from '../di'
import {CommandLine} from './service'
import {Directive} from './Directive'
import {logIfDebugging} from '../util'

/**
 * Register a class as a command-line Directive.
 * The class must extend Directive.
 * @constructor
 */
export const CLIDirective = (): ClassDecorator => {
    return (target) => {
        if ( isInstantiableOf(target, Directive) ) {
            logIfDebugging('extollo.cli.decorators', 'Registering CLIDirective blueprint:', target)
            ContainerBlueprint.getContainerBlueprint()
                .onResolve<CommandLine>(CommandLine, (cli: CommandLine) => {
                    cli.registerDirective(target as Instantiable<Directive>)
                })
        } else {
            logIfDebugging('extollo.cli.decorators', 'Skipping CLIDirective blueprint:', target)
        }
    }
}