import { EventType, IElementEvent, IEventHandle } from "../types";
import { Processor } from "../Processor";
import { CallCompleteEvent } from "../events/CallCompleteEvent";
import { CallErrorEvent } from "../events/CallErrorEvent";
import { ChangeVarEvent } from "../events/ChangeVarEvent";
import { CompleteEvent } from "../events/CompleteEvent";
import { CreateEvent } from "../events/CreateEvent";
import { DisposeEvent } from "../events/DisposeEvent";
import { NextEvent } from "../events/NextEvent";
import { PromiseCatchEvent } from "../events/PromiseCatchEvent";
import { ErrorEvent } from "../events/ErrorEvent";
import { SubscribeCompleteEvent } from "../events/SubscribeCompleteEvent";
import { SubscribeErrorEvent } from "../events/SubscribeErrorEvent";
import { PromiseThenEvent } from "../events/PromiseThenEvent";

const EventHandles: { [P in EventType]: IEventHandle } = {
    CallComplete: CallCompleteEvent,
    CallError: CallErrorEvent,
    ChangeVar: ChangeVarEvent,
    Complete: CompleteEvent,
    Create: CreateEvent,
    Dispose: DisposeEvent,
    Error: ErrorEvent,
    Next: NextEvent,
    PromiseCatch: PromiseCatchEvent,
    PromiseThen: PromiseThenEvent,
    SubscribeComplete: SubscribeCompleteEvent,
    SubscribeError: SubscribeErrorEvent,
};

export const applyEvent = (processor: Processor, event: IElementEvent): boolean => {
    const type = event.type;
    // console.log(event);
    const handle = EventHandles[type];
    if (!handle) {
        throw new Error("Unknown event type `" + type + "`");
    }

    return handle(processor, event);
};