content_iso.js

"use strict";
(() => {

    // Polyfill for browser compatibility
    if (typeof browser === "undefined") globalThis.browser = chrome;

    if(globalThis.hasRun_35pokes_iso) return;
    globalThis.hasRun_35pokes_iso = true;

    const MSG_REFRESH = "refresh";
    const MSG_META = "setMeta";
    const KEY_METAGAMES = "metagames";
    const KEY_CURRENT = "current";
    const KEY_POWER = "power";

    // KEY_CURRENT, KEY_METAGAMES, KEY_POWER are never together
    browser.storage.onChanged.addListener(async (changes) => {
        // User selected another meta.
        if(changes[KEY_CURRENT]) {
            const stored = await browser.storage.local.get([KEY_METAGAMES, KEY_POWER]);
            if(stored[KEY_POWER] === false) return;
            const meta = stored[KEY_METAGAMES][changes[KEY_CURRENT].newValue[0]][changes[KEY_CURRENT].newValue[1]];
            document.dispatchEvent(new CustomEvent("35Pokes", { detail: JSON.stringify(meta) }));
        }

        // Metagame index was updated.
        else if(changes[KEY_METAGAMES]) {
            const stored = await browser.storage.local.get([KEY_CURRENT, KEY_POWER]);
            if(stored[KEY_POWER] === false) return;
            const meta = changes[KEY_METAGAMES].newValue[stored[KEY_CURRENT][0]][stored[KEY_CURRENT][1]];
            document.dispatchEvent(new CustomEvent("35Pokes", { detail: JSON.stringify(meta) }));
        }

        // User toggled the power state.
        else if(changes[KEY_POWER]){
            if(changes[KEY_POWER].newValue === true) {
                const stored = await browser.storage.local.get([KEY_METAGAMES, KEY_CURRENT]);
                const meta = stored[KEY_METAGAMES][stored[KEY_CURRENT][0]][stored[KEY_CURRENT][1]];
                document.dispatchEvent(new CustomEvent("35Pokes", { detail: JSON.stringify(meta) }));
            }
            else if(changes[KEY_POWER].newValue === false)
                document.dispatchEvent(new CustomEvent("35Pokes", { detail: "null" }));
        }
    });

    browser.storage.local.get([KEY_METAGAMES, KEY_CURRENT, KEY_POWER]).then((stored) => {
        if(stored[KEY_POWER] === true && stored[KEY_METAGAMES] && stored[KEY_CURRENT]) {
            const meta = stored[KEY_METAGAMES][stored[KEY_CURRENT][0]][stored[KEY_CURRENT][1]];
            document.dispatchEvent(new CustomEvent("35Pokes", { detail: JSON.stringify(meta) }));
        }
        browser.runtime.sendMessage(MSG_REFRESH);
    });

    console.log("35Pokes Isolated: Successful init.");

})();