import { useEffect, useRef, useLayoutEffect } from "react";
import { GetTicketsResponse, GetTicketsRequest } from "../model";
import { devlog } from "../utils";
import { makeRequest } from "../api";
import { FetchState } from "../model/fetchState";


export function useTicketsFetcher({ enabled = true, url, ticketsPerPage, ticketApiPage, onSuccess, onError, onFetchStateChange }: {
    enabled?: boolean;
    url: string;
    ticketsPerPage: number;
    ticketApiPage: number;
    onSuccess: (response: GetTicketsResponse) => void;
    onError?: (error: Error) => void;
    onFetchStateChange?: (state: FetchState) => void;
}) {
    const onNewTicketsRef = useRef(onSuccess);
    const onErrorRef = useRef(onError);
    const onFetchStateChangeRef = useRef(onFetchStateChange);

    useLayoutEffect(() => {
        onNewTicketsRef.current = onSuccess;
        onErrorRef.current = onError;
        onFetchStateChangeRef.current = onFetchStateChange;
    }, [onSuccess, onError, onFetchStateChange]);

    useEffect(function fetchTickets() {
        if (!enabled) return;

        const controller = new AbortController();

        onFetchStateChangeRef.current?.("fetching");
        makeRequest<GetTicketsRequest, GetTicketsResponse>({
            url,
            method: "POST",
            useToken: true,
            body: {
                amt: ticketsPerPage,
                page: ticketApiPage,
                status: "open",
            },
            signal: controller.signal,
        }).then((result) => {
            devlog("GetTicketsResponse", result);
            if (result.data) {
                onNewTicketsRef.current(result);
                onFetchStateChangeRef.current?.("idle");
            } else onFetchStateChangeRef.current?.("all fetched");
        }).catch(error => {
            devlog("Error fetching tickets", error);
            onErrorRef.current?.(error);
        });

        return () => controller.abort();
    }, [enabled, ticketApiPage, ticketsPerPage, url]);
}