export default () => {
    // deno-lint-ignore ban-types
    const oldOnloadHandler: Function = window.onload ?? (() => {});

    window.onload = () => {
        oldOnloadHandler();
        const params = new URL(document.location.href).searchParams;
        if (params.get("chapter")) {
            localStorage.setItem(
                `${params.get("id")}_progress`,
                params.get("chapter") as string,
            );
        }

        const readingHistory: string[] = JSON.parse(
            localStorage.getItem("readingHistory") ?? "[]",
        );

        readingHistory.forEach((id, idx) => {
            if (id === params.get("id")) {
                readingHistory.splice(idx, 1);
            }
        });

        readingHistory.unshift(params.get("id") as string);

        //TODO: do pagination on the history page to make this un-necessary
        if (readingHistory.length > 50) {
            readingHistory.pop();
        }

        localStorage.setItem("readingHistory", JSON.stringify(readingHistory));
    };
};