/*******************************************************************************

    uBlock Origin Lite - a comprehensive, MV3-compliant content blocker
    Copyright (C) 2014-present Raymond Hill

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see {http://www.gnu.org/licenses/}.

    Home: https://github.com/gorhill/uBlock

*/

/* eslint-disable indent */

// ruleset: hun-0

// Important!
// Isolate from global scope

// Start of local scope
(( ) => {

/******************************************************************************/

// Start of code to inject
const uBOL_removeNodeText = function() {

const scriptletGlobals = {}; // eslint-disable-line

const argsList = [["script","undefined"]];

const hostnamesMap = new Map([["rubyvidhub.com",0]]);

const entitiesMap = new Map([]);

const exceptionsMap = new Map([]);

/******************************************************************************/

function removeNodeText(
    nodeName,
    includes,
    ...extraArgs
) {
    replaceNodeTextFn(nodeName, '', '', 'includes', includes || '', ...extraArgs);
}

function replaceNodeTextFn(
    nodeName = '',
    pattern = '',
    replacement = ''
) {
    const safe = safeSelf();
    const logPrefix = safe.makeLogPrefix('replace-node-text.fn', ...Array.from(arguments));
    const reNodeName = safe.patternToRegex(nodeName, 'i', true);
    const rePattern = safe.patternToRegex(pattern, 'gms');
    const extraArgs = safe.getExtraArgs(Array.from(arguments), 3);
    const reIncludes = extraArgs.includes || extraArgs.condition
        ? safe.patternToRegex(extraArgs.includes || extraArgs.condition, 'ms')
        : null;
    const reExcludes = extraArgs.excludes
        ? safe.patternToRegex(extraArgs.excludes, 'ms')
        : null;
    const stop = (takeRecord = true) => {
        if ( takeRecord ) {
            handleMutations(observer.takeRecords());
        }
        observer.disconnect();
        if ( safe.logLevel > 1 ) {
            safe.uboLog(logPrefix, 'Quitting');
        }
    };
    const textContentFactory = (( ) => {
        const out = { createScript: s => s };
        const { trustedTypes: tt } = self;
        if ( tt instanceof Object ) {
            if ( typeof tt.getPropertyType === 'function' ) {
                if ( tt.getPropertyType('script', 'textContent') === 'TrustedScript' ) {
                    return tt.createPolicy(getRandomToken(), out);
                }
            }
        }
        return out;
    })();
    let sedCount = extraArgs.sedCount || 0;
    const handleNode = node => {
        const before = node.textContent;
        if ( reIncludes ) {
            reIncludes.lastIndex = 0;
            if ( safe.RegExp_test.call(reIncludes, before) === false ) { return true; }
        }
        if ( reExcludes ) {
            reExcludes.lastIndex = 0;
            if ( safe.RegExp_test.call(reExcludes, before) ) { return true; }
        }
        rePattern.lastIndex = 0;
        if ( safe.RegExp_test.call(rePattern, before) === false ) { return true; }
        rePattern.lastIndex = 0;
        const after = pattern !== ''
            ? before.replace(rePattern, replacement)
            : replacement;
        node.textContent = node.nodeName === 'SCRIPT'
            ? textContentFactory.createScript(after)
            : after;
        if ( safe.logLevel > 1 ) {
            safe.uboLog(logPrefix, `Text before:\n${before.trim()}`);
        }
        safe.uboLog(logPrefix, `Text after:\n${after.trim()}`);
        return sedCount === 0 || (sedCount -= 1) !== 0;
    };
    const handleMutations = mutations => {
        for ( const mutation of mutations ) {
            for ( const node of mutation.addedNodes ) {
                if ( reNodeName.test(node.nodeName) === false ) { continue; }
                if ( handleNode(node) ) { continue; }
                stop(false); return;
            }
        }
    };
    const observer = new MutationObserver(handleMutations);
    observer.observe(document, { childList: true, subtree: true });
    if ( document.documentElement ) {
        const treeWalker = document.createTreeWalker(
            document.documentElement,
            NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_TEXT
        );
        let count = 0;
        for (;;) {
            const node = treeWalker.nextNode();
            count += 1;
            if ( node === null ) { break; }
            if ( reNodeName.test(node.nodeName) === false ) { continue; }
            if ( node === document.currentScript ) { continue; }
            if ( handleNode(node) ) { continue; }
            stop(); break;
        }
        safe.uboLog(logPrefix, `${count} nodes present before installing mutation observer`);
    }
    if ( extraArgs.stay ) { return; }
    runAt(( ) => {
        const quitAfter = extraArgs.quitAfter || 0;
        if ( quitAfter !== 0 ) {
            setTimeout(( ) => { stop(); }, quitAfter);
        } else {
            stop();
        }
    }, 'interactive');
}

function getRandomToken() {
    const safe = safeSelf();
    return safe.String_fromCharCode(Date.now() % 26 + 97) +
        safe.Math_floor(safe.Math_random() * 982451653 + 982451653).toString(36);
}

function runAt(fn, when) {
    const intFromReadyState = state => {
        const targets = {
            'loading': 1, 'asap': 1,
            'interactive': 2, 'end': 2, '2': 2,
            'complete': 3, 'idle': 3, '3': 3,
        };
        const tokens = Array.isArray(state) ? state : [ state ];
        for ( const token of tokens ) {
            const prop = `${token}`;
            if ( targets.hasOwnProperty(prop) === false ) { continue; }
            return targets[prop];
        }
        return 0;
    };
    const runAt = intFromReadyState(when);
    if ( intFromReadyState(document.readyState) >= runAt ) {
        fn(); return;
    }
    const onStateChange = ( ) => {
        if ( intFromReadyState(document.readyState) < runAt ) { return; }
        fn();
        safe.removeEventListener.apply(document, args);
    };
    const safe = safeSelf();
    const args = [ 'readystatechange', onStateChange, { capture: true } ];
    safe.addEventListener.apply(document, args);
}

function safeSelf() {
    if ( scriptletGlobals.safeSelf ) {
        return scriptletGlobals.safeSelf;
    }
    const self = globalThis;
    const safe = {
        'Array_from': Array.from,
        'Error': self.Error,
        'Function_toStringFn': self.Function.prototype.toString,
        'Function_toString': thisArg => safe.Function_toStringFn.call(thisArg),
        'Math_floor': Math.floor,
        'Math_max': Math.max,
        'Math_min': Math.min,
        'Math_random': Math.random,
        'Object': Object,
        'Object_defineProperty': Object.defineProperty.bind(Object),
        'Object_defineProperties': Object.defineProperties.bind(Object),
        'Object_fromEntries': Object.fromEntries.bind(Object),
        'Object_getOwnPropertyDescriptor': Object.getOwnPropertyDescriptor.bind(Object),
        'RegExp': self.RegExp,
        'RegExp_test': self.RegExp.prototype.test,
        'RegExp_exec': self.RegExp.prototype.exec,
        'Request_clone': self.Request.prototype.clone,
        'String_fromCharCode': String.fromCharCode,
        'String_split': String.prototype.split,
        'XMLHttpRequest': self.XMLHttpRequest,
        'addEventListener': self.EventTarget.prototype.addEventListener,
        'removeEventListener': self.EventTarget.prototype.removeEventListener,
        'fetch': self.fetch,
        'JSON': self.JSON,
        'JSON_parseFn': self.JSON.parse,
        'JSON_stringifyFn': self.JSON.stringify,
        'JSON_parse': (...args) => safe.JSON_parseFn.call(safe.JSON, ...args),
        'JSON_stringify': (...args) => safe.JSON_stringifyFn.call(safe.JSON, ...args),
        'log': console.log.bind(console),
        // Properties
        logLevel: 0,
        // Methods
        makeLogPrefix(...args) {
            return this.sendToLogger && `[${args.join(' \u205D ')}]` || '';
        },
        uboLog(...args) {
            if ( this.sendToLogger === undefined ) { return; }
            if ( args === undefined || args[0] === '' ) { return; }
            return this.sendToLogger('info', ...args);
            
        },
        uboErr(...args) {
            if ( this.sendToLogger === undefined ) { return; }
            if ( args === undefined || args[0] === '' ) { return; }
            return this.sendToLogger('error', ...args);
        },
        escapeRegexChars(s) {
            return s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
        },
        initPattern(pattern, options = {}) {
            if ( pattern === '' ) {
                return { matchAll: true, expect: true };
            }
            const expect = (options.canNegate !== true || pattern.startsWith('!') === false);
            if ( expect === false ) {
                pattern = pattern.slice(1);
            }
            const match = /^\/(.+)\/([gimsu]*)$/.exec(pattern);
            if ( match !== null ) {
                return {
                    re: new this.RegExp(
                        match[1],
                        match[2] || options.flags
                    ),
                    expect,
                };
            }
            if ( options.flags !== undefined ) {
                return {
                    re: new this.RegExp(this.escapeRegexChars(pattern),
                        options.flags
                    ),
                    expect,
                };
            }
            return { pattern, expect };
        },
        testPattern(details, haystack) {
            if ( details.matchAll ) { return true; }
            if ( details.re ) {
                return this.RegExp_test.call(details.re, haystack) === details.expect;
            }
            return haystack.includes(details.pattern) === details.expect;
        },
        patternToRegex(pattern, flags = undefined, verbatim = false) {
            if ( pattern === '' ) { return /^/; }
            const match = /^\/(.+)\/([gimsu]*)$/.exec(pattern);
            if ( match === null ) {
                const reStr = this.escapeRegexChars(pattern);
                return new RegExp(verbatim ? `^${reStr}$` : reStr, flags);
            }
            try {
                return new RegExp(match[1], match[2] || undefined);
            }
            catch {
            }
            return /^/;
        },
        getExtraArgs(args, offset = 0) {
            const entries = args.slice(offset).reduce((out, v, i, a) => {
                if ( (i & 1) === 0 ) {
                    const rawValue = a[i+1];
                    const value = /^\d+$/.test(rawValue)
                        ? parseInt(rawValue, 10)
                        : rawValue;
                    out.push([ a[i], value ]);
                }
                return out;
            }, []);
            return this.Object_fromEntries(entries);
        },
        onIdle(fn, options) {
            if ( self.requestIdleCallback ) {
                return self.requestIdleCallback(fn, options);
            }
            return self.requestAnimationFrame(fn);
        },
        offIdle(id) {
            if ( self.requestIdleCallback ) {
                return self.cancelIdleCallback(id);
            }
            return self.cancelAnimationFrame(id);
        }
    };
    scriptletGlobals.safeSelf = safe;
    if ( scriptletGlobals.bcSecret === undefined ) { return safe; }
    // This is executed only when the logger is opened
    safe.logLevel = scriptletGlobals.logLevel || 1;
    let lastLogType = '';
    let lastLogText = '';
    let lastLogTime = 0;
    safe.toLogText = (type, ...args) => {
        if ( args.length === 0 ) { return; }
        const text = `[${document.location.hostname || document.location.href}]${args.join(' ')}`;
        if ( text === lastLogText && type === lastLogType ) {
            if ( (Date.now() - lastLogTime) < 5000 ) { return; }
        }
        lastLogType = type;
        lastLogText = text;
        lastLogTime = Date.now();
        return text;
    };
    try {
        const bc = new self.BroadcastChannel(scriptletGlobals.bcSecret);
        let bcBuffer = [];
        safe.sendToLogger = (type, ...args) => {
            const text = safe.toLogText(type, ...args);
            if ( text === undefined ) { return; }
            if ( bcBuffer === undefined ) {
                return bc.postMessage({ what: 'messageToLogger', type, text });
            }
            bcBuffer.push({ type, text });
        };
        bc.onmessage = ev => {
            const msg = ev.data;
            switch ( msg ) {
            case 'iamready!':
                if ( bcBuffer === undefined ) { break; }
                bcBuffer.forEach(({ type, text }) =>
                    bc.postMessage({ what: 'messageToLogger', type, text })
                );
                bcBuffer = undefined;
                break;
            case 'setScriptletLogLevelToOne':
                safe.logLevel = 1;
                break;
            case 'setScriptletLogLevelToTwo':
                safe.logLevel = 2;
                break;
            }
        };
        bc.postMessage('areyouready?');
    } catch {
        safe.sendToLogger = (type, ...args) => {
            const text = safe.toLogText(type, ...args);
            if ( text === undefined ) { return; }
            safe.log(`uBO ${text}`);
        };
    }
    return safe;
}

/******************************************************************************/

const hnParts = [];
try {
    let origin = document.location.origin;
    if ( origin === 'null' ) {
        const origins = document.location.ancestorOrigins;
        for ( let i = 0; i < origins.length; i++ ) {
            origin = origins[i];
            if ( origin !== 'null' ) { break; }
        }
    }
    const pos = origin.lastIndexOf('://');
    if ( pos === -1 ) { return; }
    hnParts.push(...origin.slice(pos+3).split('.'));
} catch {
}
const hnpartslen = hnParts.length;
if ( hnpartslen === 0 ) { return; }

const todoIndices = new Set();
const tonotdoIndices = [];

// Exceptions
if ( exceptionsMap.size !== 0 ) {
    for ( let i = 0; i < hnpartslen; i++ ) {
        const hn = hnParts.slice(i).join('.');
        const excepted = exceptionsMap.get(hn);
        if ( excepted ) { tonotdoIndices.push(...excepted); }
    }
    exceptionsMap.clear();
}

// Hostname-based
if ( hostnamesMap.size !== 0 ) {
    const collectArgIndices = hn => {
        let argsIndices = hostnamesMap.get(hn);
        if ( argsIndices === undefined ) { return; }
        if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
        for ( const argsIndex of argsIndices ) {
            if ( tonotdoIndices.includes(argsIndex) ) { continue; }
            todoIndices.add(argsIndex);
        }
    };
    for ( let i = 0; i < hnpartslen; i++ ) {
        const hn = hnParts.slice(i).join('.');
        collectArgIndices(hn);
    }
    collectArgIndices('*');
    hostnamesMap.clear();
}

// Entity-based
if ( entitiesMap.size !== 0 ) {
    const n = hnpartslen - 1;
    for ( let i = 0; i < n; i++ ) {
        for ( let j = n; j > i; j-- ) {
            const en = hnParts.slice(i,j).join('.');
            let argsIndices = entitiesMap.get(en);
            if ( argsIndices === undefined ) { continue; }
            if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
            for ( const argsIndex of argsIndices ) {
                if ( tonotdoIndices.includes(argsIndex) ) { continue; }
                todoIndices.add(argsIndex);
            }
        }
    }
    entitiesMap.clear();
}

// Apply scriplets
for ( const i of todoIndices ) {
    try { removeNodeText(...argsList[i]); }
    catch { }
}
argsList.length = 0;

/******************************************************************************/

};
// End of code to inject

/******************************************************************************/

uBOL_removeNodeText();

/******************************************************************************/

// End of local scope
})();

/******************************************************************************/

void 0;
