import { resolveActionClass, resolveSchema  } from './../helper/resolver.js'
import FlowStore from './../store/flow.js'
import logger from './../helper/logger.js'

/**
 *
 *  handle parser
 *
 *
 *  @author Björn Hase <me@herr-hase.wtf>
 *  @license hhttps://www.gnu.org/licenses/gpl-3.0.en.html GPL-3
 *  @link https://git.node001.net/HerrHase/signpost.git
 *
 */

async function flowHandler(request, response) {

    // get single flow
    const flowStore = new FlowStore(this.db())
    const flow = await flowStore.findOneByUuid(request.params.uuid)

    if (!flow) {
        return response
            .code(404)
            .send()
    }

    // add to locals
    response.locals = {
        'flow' : flow
    }

    // getting action class
    try {
        response.locals.action = await import(resolveActionClass(flow.action))
    } catch(error) {
        logger(flow.uuid).error('flowHandler / resolve class / ' + error)
        return response
            .code(500)
            .send()
    }

    // check for schema
    if (flow.schema) {
        try {
            response.locals.schema = await import(resolveSchema(flow.schema))
        } catch(error) {
            logger(flow.uuid).error('flowHandler / resolve schema / ' + error)
        }
    }
}
  
export default flowHandler