import {ErrorWithContext} from "@extollo/util";
import {ResolvedRouteHandler, Route} from "./Route";

export class ActivatedRoute {
    public readonly params: {[key: string]: string}
    public readonly handler: ResolvedRouteHandler
    public readonly preflight: ResolvedRouteHandler[]
    public readonly postflight: ResolvedRouteHandler[]

    constructor(
        public readonly route: Route,
        public readonly path: string
    ) {
        const params = route.extract(path)
        if ( !params ) {
            const error = new ErrorWithContext('Cannot get params for route. Path does not match.')
            error.context = {
                matchedRoute: String(route),
                requestPath: path,
            }
            throw error
        }

        this.params = params
        this.preflight = route.resolvePreflight()
        this.handler = route.resolveHandler()
        this.postflight = route.resolvePostflight()
    }
}