import { router } from '@inertiajs/react';
import { useEffect, useRef } from 'react';
import {
    clearRestockDraft,
    saveRestockDraft
    
} from '@/lib/restock-draft';
import type {RestockDraftData} from '@/lib/restock-draft';

type DraftType = 'create' | 'edit';

export function useRestockDraftSave(
    type: DraftType,
    data: RestockDraftData,
    userId?: number,
    delay = 500,
) {
    const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
    const dataRef = useRef(data);
    const submittedRef = useRef(false);

    useEffect(() => {
        dataRef.current = data;
    }, [data]);

    useEffect(() => {
        const offBefore = router.on('before', (event) => {
            if (event.detail.visit.method !== 'get') {
                submittedRef.current = true;
            }
        });
        const offError = router.on('error', () => {
            submittedRef.current = false;
        });

        return () => {
            offBefore();
            offError();
        };
    }, []);

    useEffect(() => {
        if (timeoutRef.current) {
            clearTimeout(timeoutRef.current);
        }

        timeoutRef.current = setTimeout(() => {
            if (!submittedRef.current) {
                saveRestockDraft(type, dataRef.current, userId);
            }

            timeoutRef.current = null;
        }, delay);

        return () => {
            if (timeoutRef.current) {
                clearTimeout(timeoutRef.current);
            }
        };
    }, [data, type, userId, delay]);

    useEffect(() => {
        return () => {
            if (timeoutRef.current) {
                clearTimeout(timeoutRef.current);
            }

            if (submittedRef.current) {
                clearRestockDraft(type, userId);
            } else {
                saveRestockDraft(type, dataRef.current, userId);
            }
        };
    }, [type, userId]);
}