import "./meta";

import FileSaver from "file-saver";
import { waitForSheetLoaded } from "./utils";
import { downloadPDF } from "./pdf";
import { getFileUrl } from "./file";
import { BtnList, BtnAction, BtnListMode } from "./btn";
import { ScoreInfoInPage, SheetInfoInPage } from "./scoreinfo";
import i18nextInit, { i18next } from "./i18n/index";
import { isGmAvailable, _GM } from "./gm";

(async () => {
    await i18nextInit;
})();

if (isGmAvailable("registerMenuCommand")) {
    // add buttons to the userscript manager menu
    _GM.registerMenuCommand(
        "** " +
        i18next.t("version", { version: _GM.info.script.version }) +
        " **",
        () =>
            _GM.openInTab(
                "https://github.com/LibreScore/dl-librescore/releases",
                {
                    active: true,
                }
            )
    );

    _GM.registerMenuCommand("** " + i18next.t("source_code") + " **", () =>
        _GM.openInTab(_GM.info.script.homepage, { active: true })
    );

    _GM.registerMenuCommand("** Discord **", () =>
        _GM.openInTab("https://discord.gg/DKu7cUZ4XQ", { active: true })
    );
}

const { saveAs } = FileSaver;

const main = (): void => {
    let isOfficial = window.UGAPP.store.page.data.score.is_official ?? !!(
        document.querySelector(
            "meta[property='musescore:author'][content='Official Scores']"
        ) ||
        document.querySelector(
            "meta[property='musescore:author'][content='Official Author']"
        ) ||
        document.querySelector(
            "meta[property='musescore:author'][content='Hal Leonard']"
        ) ||
        document.querySelector(
            "meta[property='musescore:author'][content='Faber']"
        ) ||
        document.querySelector(
            "meta[property='musescore:author'][content='Made By Muse']"
        ) ||
        document.querySelector(
            "meta[property='musescore:author'][content='ArrangeMe']"
        )
    );
    let isMobile = (window.UGAPP.config.is_mobile || window.UGAPP.config.is_tablet) ?? (!document.querySelector('button[title="Toggle Fullscreen"]') ?
        !Array.from([
            ...document.querySelector("#jmuse-layout")!.querySelectorAll("div"),
        ]).some((div) => div.querySelectorAll("button").length === 3)
        : false);
    let isPDFOnly = false;
    if (isOfficial) {
        isPDFOnly = window.UGAPP.store.page.data.score.is_pdf ?? !document.querySelector("#playerControls");
    }
    new Promise(() => {
        let noSub = (!window.UGAPP.store.user.isPro || !window.UGAPP.store.user.isProPlus) ?? Array.from([
            ...document.querySelectorAll(isMobile ? "#official-score-banner" : "#jmuse-scroller-component" + " div"),
        ]).some((el: HTMLDivElement) =>
            el.innerText.startsWith("End of preview")
        );
        const scoreinfo = new ScoreInfoInPage(document);
        const btnList = new BtnList();
        let indvPartBtn: HTMLButtonElement | null = null;
        const fallback = () => {
            // btns fallback to load from MSCZ file (`Individual Parts`)
            return indvPartBtn?.click();
        };

        if (noSub && isOfficial) {
            btnList.add({
                name:
                    i18next.t("download", { fileType: "PDF" }) +
                    "\n(" +
                    i18next.t("official_button") +
                    ")",
                action: BtnAction.openUrl("https://musescore.com/upgrade"),
                tooltip: i18next.t("official_tooltip"),
            });
        } else {
            btnList.add({
                name: i18next.t("download", {
                    fileType: "PDF",
                }),
                action: BtnAction.process(
                    async (_, setText): Promise<void> => {
                        return downloadPDF(
                            scoreinfo,
                            new SheetInfoInPage(document),
                            saveAs,
                            setText
                        );
                    },

                    fallback,
                    3 * 60 * 1000 /* 3min */
                ),
            });
        }

        if (!isPDFOnly) {
            btnList.add({
                name: i18next.t("download", { fileType: "MIDI" }),
                action: BtnAction.download(
                    () => getFileUrl(scoreinfo.id, "midi"),
                    scoreinfo.fileName,
                    fallback,
                    30 * 1000 /* 30s */
                ),
            });

            btnList.add({
                name: i18next.t("download", { fileType: "MP3" }),
                action: BtnAction.download(
                    () => getFileUrl(scoreinfo.id, "mp3"),
                    scoreinfo.fileName,
                    fallback,
                    30 * 1000 /* 30s */
                ),
            });
        }
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        btnList.commit(BtnListMode.InPage);
    });
};

// eslint-disable-next-line @typescript-eslint/no-floating-promises
waitForSheetLoaded().then(main);