jadefin/JadefinUtils.js

//@ts-check

import JadefinIntegrity from "./JadefinIntegrity.js";

import JadefinModules from "./JadefinModules.js";

export default JadefinIntegrity("JadefinUtils", import.meta.url, () => window["JadefinUtils"] = new (class JadefinUtils {
    events = new EventTarget();
    eventTypes = {
        WORKER_CREATING: "workerCreating",
        WORKER_CREATED: "workerCreated",
        HTML_VIDEO_PLAYER_CHANGED: "htmlVideoPlayerChanged"
    };

    htmlVideoPlayers = new Set();
    /** @type {any} */
    htmlVideoPlayer = null;

    get isInMovie() {
        return !!document.querySelector(".osdHeader");
    }

    get video() {
        return /** @type {HTMLVideoElement} */ (document.querySelector(".videoPlayerContainer > video.htmlvideoplayer"));
    }

    get assCanvas() {
        return /** @type {HTMLCanvasElement} */ (document.querySelector(".videoPlayerContainer > .libassjs-canvas-parent > canvas.libassjs-canvas"));
    }

    get routePath() {
        return JadefinModules.Emby.Page.lastPath;
    }

    get routePathIsVideo() {
        return this.routePath == "/video";
    }

    get currentPlayer() {
        return JadefinModules.playbackManager._currentPlayer;
    }

    /**
     * @param {() => any} cb
     * @param {number} [tries]
     * @param {number} [time]
     */
    waitUntil(cb, tries, time) {
        let triesLeft = tries || Number.POSITIVE_INFINITY;

        return new Promise((resolve, reject) => {
            const interval = setInterval(() => {
                const v = cb();

                if (v) {
                    resolve(v);
                    clearInterval(interval);
                } else if ((--triesLeft) <= 0) {
                    reject(v);
                    clearInterval(interval);
                }
            }, time || 100);
        });
    }

    /**
     * @template T
     * @param {T | null | undefined} value
     * @returns {T}
     */
    notnull(value) {
        if (value === null || value === undefined) {
            throw new Error("notnull encountered null");
        }

        return value;
    }

    /**
     * @param {Node | null} el
     * @param {Node} check
     */
    hasParent(el, check) {
        for (let curr = el; curr; curr = curr?.parentNode) {
            if (curr == check) {
                return true;
            }
        }

        return false;
    }

    /**
     * @param {{ [x: string]: any; }} obj
     * @param {number} levels
     * @param {(level: number, v: any, k: string, obj: any) => any} cond
     * @param {(level: number, v: any, k: string, obj: any) => void} [cb]
     */
    findDeep(obj, levels, cond, cb) {
        if (levels <= 0) {
            return null;
        }

        if (typeof(parent) == "object") {
            for (const k in obj) {
                let v;
                try {
                    v = obj[k];
                } catch {
                    continue;
                }

                let rv;
                try {
                    rv = cond(levels, v, k, obj);
                } catch {
                    continue;
                }

                if (cond(levels, v, k, obj)) {
                    cb?.(levels, v, k, obj);

                    if (levels > 1) {
                        return this.findDeep(obj, levels - 1, cond, cb);
                    }

                    return v;
                }
            }
        }

        return null;
    }

    /**
     * @param {any[]} arr
     * @param {(value: any, [index]: any, [array]: any) => any} cb
     */
    filterMap(arr, cb) {
        return arr.reduce((res, value, index, array) => {
            const rv = cb(value, index, array);

            if (rv) {
                if (typeof(rv) == "object" || typeof(rv) == "function") {
                    res.push(rv);
                } else {
                    res.push(value);
                }
            }

            return res;
        }, []);
    }

})());