"use client";
import { useCallback, useRef, useState } from "react";
import { toast } from "sonner";
import { useVisiblePolling } from "@/hooks/use-visible-polling";
import { adminFetch } from "@/lib/admin-fetch";
import type { ImportJob, ImportJobItem } from "@/lib/furni/import-job";
export function useFurnitureJobs(onComplete: () => void) {
	const [jobs, setJobs] = useState<ImportJob[]>([]),
		[busy, setBusy] = useState(false),
		[error, setError] = useState("");
	const completed = useRef(new Set<string>()),
		callback = useRef(onComplete);
	callback.current = onComplete;
	const request = useRef<{ payload: string; id: string } | null>(null);
	const submitting = useRef(false);
	const refreshing = useRef(false);
	const refresh = useCallback(async () => {
		if (refreshing.current) return;
		refreshing.current = true;
		try {
			const response = await adminFetch("/api/admin/studio/import-jobs");
			const data = await response.json();
			if (!response.ok)
				throw Error(
					data.error || `Import history unavailable (${response.status})`,
				);
			setJobs(data.jobs);
			setError("");
			let changed = false;
			for (const job of data.jobs as ImportJob[])
				if (
					(job.state === "completed" || job.state === "interrupted") &&
					!completed.current.has(job.id)
				) {
					completed.current.add(job.id);
					changed = true;
				}
			if (changed) callback.current();
		} catch (error) {
			setError(
				error instanceof Error ? error.message : "Cannot load import history",
			);
		} finally {
			refreshing.current = false;
		}
	}, []);
	useVisiblePolling(refresh, 5000);
	const submit = async (
		items: ImportJobItem[],
		options: {
			sourceId?: string;
			translate: boolean;
			langs?: string[];
			mode?: "repair";
		},
	) => {
		if (submitting.current) return false;
		submitting.current = true;
		setBusy(true);
		const body = { items, ...options },
			payload = JSON.stringify(body);
		if (request.current?.payload !== payload)
			request.current = { payload, id: crypto.randomUUID() };
		try {
			const response = await adminFetch("/api/admin/studio/import-jobs", {
				method: "POST",
				headers: { "Content-Type": "application/json" },
				body: JSON.stringify({ ...body, id: request.current.id }),
			});
			const data = await response.json();
			if (!response.ok)
				throw Error(
					data.error || `Could not queue import (${response.status})`,
				);
			request.current = null;
			await refresh();
			toast.success(
				"Import queued. You can leave this page and return to its history.",
			);
			return true;
		} catch (error) {
			toast.error(
				error instanceof Error ? error.message : "Could not queue import",
			);
			return false;
		} finally {
			submitting.current = false;
			setBusy(false);
		}
	};
	return { jobs, busy, error, submit, refresh };
}