import { Action } from "../../../../types"
import { DOMAIN_PRESALE_STEPS } from "./state";
import { Context } from "../../../../overmind/overmind";

type StepProcessorsCollection<STEPSENUM extends number | string, T> = Record<STEPSENUM, T>;



type WizardStepsProcessor = (authorized: boolean, authenticated: boolean, formUsername?: string) => DOMAIN_PRESALE_STEPS;
type WizardStepsProcessors = StepProcessorsCollection<DOMAIN_PRESALE_STEPS, WizardStepsProcessor>;

// const forwAuthorized = (authorized: boolean, step: DOMAIN_PRESALE_STEPS) => authorized ? DOMAIN_PRESALE_STEPS.DONE : step;
// const forwAuthenticated = (authenticated: boolean, step: DOMAIN_PRESALE_STEPS) => authenticated ? DOMAIN_PRESALE_STEPS.CREATE_USER : step;
// const forward = (authorized: boolean, authenticated: boolean, otherwise: DOMAIN_PRESALE_STEPS) =>
//     forwAuthorized(authorized, forwAuthenticated(authenticated, otherwise));

// const stepNext: WizardStepsProcessors = {
//     [DOMAIN_PRESALE_STEPS.SELECT_DOMAIN]: (authorized, authenticated) => forward(authorized, authenticated, DOMAIN_PRESALE_STEPS.MAYBE_AUTHENTICATE),
//     [DOMAIN_PRESALE_STEPS.MAYBE_AUTHENTICATE]: (authorized, authenticated) =>  forward(authorized, authenticated, DOMAIN_PRESALE_STEPS.MAYBE_AUTHENTICATE),
//     [DOMAIN_PRESALE_STEPS.CREATE_USER]: (authorized, authenticated) =>  forward(authorized, authenticated, DOMAIN_PRESALE_STEPS.DONE),
//     [DOMAIN_PRESALE_STEPS.DONE]: () => DOMAIN_PRESALE_STEPS.DONE
// }

// const backAuthorized = (authorized: boolean, step: DOMAIN_PRESALE_STEPS) => authorized ? DOMAIN_PRESALE_STEPS.DONE : step;

// const stepPrev: WizardStepsProcessors = {
//     [DOMAIN_PRESALE_STEPS.SELECT_DOMAIN]: () => DOMAIN_PRESALE_STEPS.SELECT_DOMAIN,
//     [DOMAIN_PRESALE_STEPS.MAYBE_AUTHENTICATE]: () => DOMAIN_PRESALE_STEPS.SELECT_DOMAIN,
//     [DOMAIN_PRESALE_STEPS.CREATE_USER]: (authorized, authenticated) => backAuthorized(authorized, authenticated ? DOMAIN_PRESALE_STEPS.SELECT_DOMAIN : DOMAIN_PRESALE_STEPS.MAYBE_AUTHENTICATE),
//     [DOMAIN_PRESALE_STEPS.DONE]: () => DOMAIN_PRESALE_STEPS.DONE
// }
// export const deriveStep : Action<{ processors: WizardStepsProcessors }, DOMAIN_PRESALE_STEPS> = ({ state }, { processors }) => {
//     const { authorized, authenticated, user } = state.auth;
//     const { username } = user;

//     const currentStep = state.flows.user.create.wizard.step.current;
//     const processor = processors[currentStep];

//     return processor(authorized, authenticated, username);
// }

// export const wizardStepPrev : Action<undefined, boolean> = (context, _x = undefined) => {
//     return deriveStep(context, { processors: stepNext })
// }

// export const wizardStepNext = Action<undefined, boolean> = (context, _x = undefined) => {
//     return deriveStep(context, { processors: stepPrev })
// }