/* Copyright IBM Corp. 2017 */
import { Observable } from 'rxjs';
import { map, mergeMap } from 'rxjs/operators';

import { createAbstractComponentContext } from '../commands/create.components.command';
import { ComponentRegistry } from './component.reg';
import { WchTools } from './wchtools';

function _createTypeInterface(
    aType: any,
    aTools: WchTools,
    aComponentReg: ComponentRegistry,
    aTemplate: Observable<HandlebarsTemplateDelegate>): Observable<string> {

    // create the context
    const rxCtx = createAbstractComponentContext(aType, aComponentReg, aTools);

    // apply the template
    return rxCtx.pipe(mergeMap(ctx => aTemplate.pipe(map(tmp => tmp(ctx)))));
}