import { Temporal } from "temporal-polyfill"
import { t } from "./framework.js";

let _
async function getShows() {
    if (_) return _
    const response = await fetch("/shows");
    _ = await response.json();
    return _
}

const ulShows = document.getElementById("ulShows");
const search = document.getElementById("search");
const renderShowsBtn = document.getElementById("renderShowsBtn");
const { timeZoneId: tzId } = Temporal.Now.zonedDateTimeISO();
renderShowsBtn.addEventListener("click", () => {
    renderShows()
    search.value = ""
});

function dateString(date, small = false) {
    console.log(date);

    if (small) return Temporal.Instant.from(date).toZonedDateTimeISO(tzId).toPlainDateTime().toLocaleString('nb-NO', { weekday: "long", calendar: 'gregory', hour: "2-digit", minute: "2-digit", month: 'long', day: 'numeric' })
    return Temporal.Instant.from(date).toZonedDateTimeISO(tzId).toPlainDateTime().toLocaleString('nb-NO', { weekday: "long", calendar: 'gregory', hour: "2-digit", minute: "2-digit", era: 'long', year: 'numeric', month: 'long', day: 'numeric' })
}

search.addEventListener("input", e => renderShows(e.currentTarget.value))

async function renderShows(query) {
    query = query?.trim()
    const searchParams = new URLSearchParams(location.search);
    if (!query && searchParams.has("q")) query = searchParams.get("q")
    searchParams.set("q", query)
    let lis = [];

    const shows = (await getShows()).reduce((acc, curr) => {
        const key = curr.title;
        if (!acc[key]) {
            acc[key] = [];
        }
        acc[key].push(curr);
        return acc;
    }, {});

    async function share(show) {
        const shareData = {
            title: `${show.title} ${dateString(show.startDateTime, true)} på vega`,
            text: "",
            url: `#${show.title}-${show.startDateTime}`,
        };
        await navigator.share(shareData);
    }

    for (const showKey of Object.keys(shows).sort((a, b) => a.localeCompare(b))) {
        const times = shows[showKey].sort((a, b) => Temporal.PlainDate.compare(Temporal.PlainDate.from(a.startDateTime), Temporal.PlainDate.from(b.startDateTime)))
        if (query && !showKey.toLowerCase().match(query.toLowerCase())) continue
        if (times.every(e => e.ticketUrl === "")) continue
        lis.push(t("li", { class: "show", id: showKey }, [t("span", { class: "title italic" }, showKey), t("ul", undefined, [t("li", undefined,
            times.filter(e => e.ticketUrl !== "").map(e => t("li", { class: `time time-${e.id}`, id: `${showKey}-${e.startDateTime}` }, [t("a", undefined, [
                t("div", undefined, [
                    t("span", { title: e.startDateTime }, dateString(e.startDateTime)),
                    t("span", undefined, `${e.scene} - ${e.tags.join(", ")}`),
                    t("div", { class: "actions" }, [
                        t("a", { href: e.ticketUrl }, "Billetter"),
                        t("button", { onclick: () => share(e) }, "Del tid")
                    ])
                ])
            ])])))])]))
    }
    ulShows.replaceChildren(...lis);
}
renderShows()